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Han SS, Shin JC, Ghanipour A, Lee JH, Lee SG, Kim JH, Chung HS, Lee GH, Jung Y. High Mobility Transistors and Flexible Optical Synapses Enabled by Wafer-Scale Chemical Transformation of Pt-Based 2D Layers. ACS APPLIED MATERIALS & INTERFACES 2024; 16:36599-36608. [PMID: 38949620 DOI: 10.1021/acsami.4c06540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Electronic devices employing two-dimensional (2D) van der Waals (vdW) transition-metal dichalcogenide (TMD) layers as semiconducting channels often exhibit limited performance (e.g., low carrier mobility), in part, due to their high contact resistances caused by interfacing non-vdW three-dimensional (3D) metal electrodes. Herein, we report that this intrinsic contact issue can be efficiently mitigated by forming the 2D/2D in-plane junctions of 2D semiconductor channels seamlessly interfaced with 2D metal electrodes. For this, we demonstrated the selectively patterned conversion of semiconducting 2D PtSe2 (channels) to metallic 2D PtTe2 (electrodes) layers by employing a wafer-scale low-temperature chemical vapor deposition (CVD) process. We investigated a variety of field-effect transistors (FETs) employing wafer-scale CVD-2D PtSe2/2D PtTe2 heterolayers and identified that silicon dioxide (SiO2) top-gated FETs exhibited an extremely high hole mobility of ∼120 cm2 V-1 s-1 at room temperature, significantly surpassing performances with previous wafer-scale 2D PtSe2-based FETs. The low-temperature nature of the CVD method further allowed for the direct fabrication of wafer-scale arrays of 2D PtSe2/2D PtTe2 heterolayers on polyamide (PI) substrates, which intrinsically displayed optical pulse-induced artificial synaptic behaviors. This study is believed to vastly broaden the applicability of 2D TMD layers for next-generation, high-performance electronic devices with unconventional functionalities.
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Affiliation(s)
- Sang Sub Han
- NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States
| | - June-Chul Shin
- NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Alireza Ghanipour
- NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States
| | - Ji-Hyun Lee
- Electron Microscopy Group of Materials Science, Korea Basic Science Institute, Daejeon 34133, Republic of Korea
| | - Sang-Gil Lee
- Electron Microscopy Group of Materials Science, Korea Basic Science Institute, Daejeon 34133, Republic of Korea
| | - Jung Han Kim
- Department of Materials Science and Engineering, Dong-A University, Busan 49315, Republic of Korea
| | - Hee-Suk Chung
- Electron Microscopy Group of Materials Science, Korea Basic Science Institute, Daejeon 34133, Republic of Korea
| | - Gwan-Hyoung Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Yeonwoong Jung
- NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States
- Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida 32826, United States
- Department of Electrical and Computer Engineering, University of Central Florida, Orlando, Florida 32826, United States
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2
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Han SS, Sattar S, Kireev D, Shin JC, Bae TS, Ryu HI, Cao J, Shum AK, Kim JH, Canali CM, Akinwande D, Lee GH, Chung HS, Jung Y. Reversible Transition of Semiconducting PtSe 2 and Metallic PtTe 2 for Scalable All-2D Edge-Contacted FETs. NANO LETTERS 2024; 24:1891-1900. [PMID: 38150559 DOI: 10.1021/acs.nanolett.3c03666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Two-dimensional (2D) transition metal dichalcogenide (TMD) layers are highly promising as field-effect transistor (FET) channels in the atomic-scale limit. However, accomplishing this superiority in scaled-up FETs remains challenging due to their van der Waals (vdW) bonding nature with respect to conventional metal electrodes. Herein, we report a scalable approach to fabricate centimeter-scale all-2D FET arrays of platinum diselenide (PtSe2) with in-plane platinum ditelluride (PtTe2) edge contacts, mitigating the aforementioned challenges. We realized a reversible transition between semiconducting PtSe2 and metallic PtTe2 via a low-temperature anion exchange reaction compatible with the back-end-of-line (BEOL) processes. All-2D PtSe2 FETs seamlessly edge-contacted with transited metallic PtTe2 exhibited significant performance improvements compared to those with surface-contacted gold electrodes, e.g., an increase of carrier mobility and on/off ratio by over an order of magnitude, achieving a maximum hole mobility of ∼50.30 cm2 V-1 s-1 at room temperature. This study opens up new opportunities toward atomically thin 2D-TMD-based circuitries with extraordinary functionalities.
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Affiliation(s)
- Sang Sub Han
- NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States
| | - Shahid Sattar
- Department of Physics and Electrical Engineering, Linnaeus University, Kalmar SE-39231, Sweden
| | - Dmitry Kireev
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78758, United States
- Microelectronics Research Center, The University of Texas at Austin, Austin, Texas 78758, United States
- Department of Biomedical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - June-Chul Shin
- NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Tae-Sung Bae
- Center for Research Equipment, Korea Basic Science Institute, Daejeon 34133, Republic of Korea
| | - Hyeon Ih Ryu
- Analytical Research Division, Korea Basic Science Institute, Jeonju 54907, Republic of Korea
| | | | | | - Jung Han Kim
- Department of Materials Science and Engineering, Dong-A University, Busan 49315, Republic of Korea
| | - Carlo Maria Canali
- Department of Physics and Electrical Engineering, Linnaeus University, Kalmar SE-39231, Sweden
| | - Deji Akinwande
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78758, United States
- Microelectronics Research Center, The University of Texas at Austin, Austin, Texas 78758, United States
| | - Gwan-Hyoung Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Hee-Suk Chung
- Electron Microscopy and Spectroscopy Team, Korea Basic Science Institute, Daejeon 34133, Republic of Korea
| | - Yeonwoong Jung
- NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States
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3
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Abusa Y, Yox P, Cady SD, Viswanathan G, Opare-Addo J, Smith EA, Mudryk Y, Lebedev OI, Perras FA, Kovnir K. Make Selenium Reactive Again: Activating Elemental Selenium for Synthesis of Metal Selenides Ranging from Nanocrystals to Large Single Crystals. J Am Chem Soc 2023; 145:22762-22775. [PMID: 37813388 DOI: 10.1021/jacs.3c08637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
The inertness of elemental selenium is a significant obstacle in the synthesis of selenium-containing materials at low reaction temperatures. Over the years, several recipes have been developed to overcome this hurdle; however, most of the methods are associated with the use of highly toxic, expensive, and environmentally harmful reagents. As such, there is an increasing demand for the design of cheap, stable, and nontoxic reactive selenium precursors usable in the low-temperature synthesis of transition metal selenides with vast applications in nanotechnology, thermoelectrics, and superconductors. Herein, a novel synthetic route has been developed for activating elemental selenium by using a solvothermal approach. By comprehensive 77Se NMR, Raman, and infrared spectroscopies and gas chromatography-mass spectrometry, we show that the activated Se solution contained HSe-, [Se-Se]2-, and Se2- ions, as well as dialkyl selenide (R2Se) and dialkyl diselenide (R-Se-Se-R) species in dynamic equilibrium. This also corresponded to the first observation of naked Se22- in solution. The versatility of the developed Se precursor was demonstrated by the successful synthesis of (i) the polycrystalline room-temperature modification of the β-Ag2Se thermoelectric material; (ii) large single crystals of superconducting β-FeSe; (iii) CdSe nanocrystals with different particle sizes (3-10 nm); (iv) nanosheets of PtSe2; and (v) mono- and dibenzyl selenides and diselenides at room temperature. The simplicity and diversity of the developed Se activation method holds promise for applied and fundamental research.
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Affiliation(s)
- Yao Abusa
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Philip Yox
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- Ames National Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
| | - Sarah D Cady
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Gayatri Viswanathan
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- Ames National Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
| | - Jemima Opare-Addo
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- Ames National Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
| | - Emily A Smith
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- Ames National Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
| | - Yaroslav Mudryk
- Ames National Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
| | - Oleg I Lebedev
- Laboratoire CRISMAT, ENSICAEN, CNRS UMR 6508, 14050 Caen, France
| | - Frédéric A Perras
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- Ames National Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
| | - Kirill Kovnir
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- Ames National Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
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4
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Xia R, Peng Y, Fang L, Meng X. Electrical field and biaxial strain tunable electronic properties of the PtSe 2/Hf 2CO 2 heterostructure. RSC Adv 2023; 13:26812-26821. [PMID: 37701500 PMCID: PMC10495041 DOI: 10.1039/d3ra04363k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 08/09/2023] [Indexed: 09/14/2023] Open
Abstract
The structure and electronic properties of two-dimensional vertical van der Waals PtSe2/Hf2CO2 heterostructure have been investigated based on first-principles calculations. The results show that the PtSe2 and Hf2CO2 monolayers form a type-I heterostructure with both the conduction band minimum (CBM) and valence band maximum (VBM) located at the Hf2CO2 layer. The electronic properties of PtSe2/Hf2CO2 heterostructure can be effectively adjusted by applying external electric field or biaxial strain. The transition in band alignment from type-I to type-II can be manipulated by controlling the strength and direction of the electric field. Additionally, the transition from type-I to type-II have also taken place under the strains, and the band gap of the PtSe2/Hf2CO2 heterostructure decreases with increasing the compressive or tensible strain. Under a strong strain of -8%, the PtSe2/Hf2CO2 heterostructure can transform from semiconductor to metal. These findings provide a promising method to tune the electronic properties of PtSe2/Hf2CO2 heterostructure and design a new vdW heterostructure in the applications for electronic and optoelectronic devices.
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Affiliation(s)
- Ruizhe Xia
- School of Science, Hubei University of Technology Wuhan 430068 P. R. China
| | - Yi Peng
- School of Science, Hubei University of Technology Wuhan 430068 P. R. China
| | - Li Fang
- School of Science, Hubei University of Technology Wuhan 430068 P. R. China
| | - Xuan Meng
- School of Science, Hubei University of Technology Wuhan 430068 P. R. China
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5
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Ahmad W, Wu J, Zhuang Q, Neogi A, Wang Z. Research Process on Photodetectors based on Group-10 Transition Metal Dichalcogenides. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207641. [PMID: 36658722 DOI: 10.1002/smll.202207641] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/01/2023] [Indexed: 06/17/2023]
Abstract
Rapidly evolving group-10 transition metal dichalcogenides (TMDCs) offer remarkable electronic, optical, and mechanical properties, making them promising candidates for advanced optoelectronic applications. Compared to most TMDCs semiconductors, group-10-TMDCs possess unique structures, narrow bandgap, and influential physical properties that motivate the development of broadband photodetectors, specifically infrared photodetectors. This review presents the latest developments in the fabrication of broadband photodetectors based on conventional 2D TMDCs. It mainly focuses on the recent developments in group-10 TMDCs from the perspective of the lattice structure and synthesis techniques. Recent progress in group-10 TMDCs and their heterostructures with different dimensionality of materials-based broadband photodetectors is provided. Moreover, this review accounts for the latest applications of group-10 TMDCs in the fields of nanoelectronics and optoelectronics. Finally, conclusions and outlooks are summarized to provide perspectives for next-generation broadband photodetectors based on group-10 TMDCs.
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Affiliation(s)
- Waqas Ahmad
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Jiang Wu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Qiandong Zhuang
- Physics Department, Lancaster University, Lancaster, LA14YB, UK
| | - Arup Neogi
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Zhiming Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China
- Institute for Advanced Study, Chengdu University, Chengdu, 610106, China
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Zhang J, Shang C, Dai X, Zhang Y, Zhu T, Zhou N, Xu H, Yang R, Li X. Effective Passivation of Anisotropic 2D GeAs via Graphene Encapsulation for Highly Stable Near-Infrared Photodetectors. ACS APPLIED MATERIALS & INTERFACES 2023; 15:13281-13289. [PMID: 36857585 DOI: 10.1021/acsami.2c20030] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Germanium arsenic (GeAs) as a promising two-dimensional (2D) semiconducting material has attracted extensive attention. The high carrier mobility and tunable bandgap of GeAs offer broad prospects in electronic and optoelectronic device-related applications. The unique intrinsic anisotropy arising from the low-symmetry structure can be applied in the design of new devices. However, the rapid degradation of mechanically exfoliated GeAs in the environment poses a challenge to its practical development in scalable devices. Here, an approach to stabilize the sensitive material without isolation from the ambient environment is reported. The graphene capping layer effectively suppresses environmental degradation, enabling the encapsulated GeAs photodetectors to maintain the key electronic properties for more than 3 months under ambient conditions. In addition, the regulation of the work function of graphene significantly improves the device performance. An improved responsivity of 965.07 A/W is 20 times higher than that of pure GeAs. This work provides opportunities for the practical application of GeAs and other environmentally sensitive 2D materials.
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Affiliation(s)
- Jianbin Zhang
- Shaanxi Joint Key Laboratory of Graphene, School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, P. R. China
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
- Guangzhou Institute of Technology, Xidian University, Guangzhou 710068, P. R. China
| | - Conghui Shang
- Shaanxi Joint Key Laboratory of Graphene, School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, P. R. China
| | - Xinyue Dai
- School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Yao Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Tao Zhu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Nan Zhou
- Shaanxi Joint Key Laboratory of Graphene, School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, P. R. China
- Guangzhou Institute of Technology, Xidian University, Guangzhou 710068, P. R. China
| | - Hua Xu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Rusen Yang
- Shaanxi Joint Key Laboratory of Graphene, School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, P. R. China
| | - Xiaobo Li
- Shaanxi Joint Key Laboratory of Graphene, School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710126, P. R. China
- Guangzhou Institute of Technology, Xidian University, Guangzhou 710068, P. R. China
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7
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Ge X, Zhou X, Sun D, Chen X. First-Principles Study of Structural and Electronic Properties of Monolayer PtX 2 and Janus PtXY (X, Y = S, Se, and Te) via Strain Engineering. ACS OMEGA 2023; 8:5715-5721. [PMID: 36816647 PMCID: PMC9933214 DOI: 10.1021/acsomega.2c07271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
In this work, the structural parameters and electronic properties of PtX2 and Janus PtXY (X, Y = S, Se, and Te) are studied based on the density functional theory. The phonon spectra and the Born criteria of the elastic constant of these six monolayers confirm their stability. All PtX2 and Janus PtXY monolayers show an outstanding stretchability with Young's modulus ranging from 61.023 to 82.124 N/m, about one-fifth that of graphene and half that of MoS2, suggesting highly flexible materials. Our first-principles calculations reveal that the pristine PtX2 and their Janus counterparts are indirect semiconductors with their band gap ranging from 0.760 to 1.810 eV at the Perdew-Burke-Ernzerhof level (1.128-2.580 eV at the Heyd-Scuseria-Ernzerhof level). By applying biaxial compressive and tensile strain, the electronic properties of all PtX2 and Janus PtXY monolayers are widely tunable. Under small compressive strain, PtX2 and Janus PtXY structures remain indirect semiconductors. PtTe2, PtSeTe, and PtSTe monolayers undergo a semiconducting to metallic transition when the strain reaches -6, -8, and -10%, respectively. Interestingly, there is a transition from the indirect semiconductor to a quasi-direct one for all PtX2 and Janus PtXY monolayers when the tensile strain is applied.
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Affiliation(s)
- Xun Ge
- Engineering
Research Center for Nanophotonics & Advanced Instrument (MOE),
School of Physics and Electronic Science, East China Normal University, Shanghai200241, China
- State
Key Laboratory of Infrared Physics, Shanghai Institute of Technical
Physics, Chinese Academy of Sciences, Shanghai200083, China
| | - Xiaohao Zhou
- State
Key Laboratory of Infrared Physics, Shanghai Institute of Technical
Physics, Chinese Academy of Sciences, Shanghai200083, China
| | - Deyan Sun
- Engineering
Research Center for Nanophotonics & Advanced Instrument (MOE),
School of Physics and Electronic Science, East China Normal University, Shanghai200241, China
| | - Xiaoshuang Chen
- State
Key Laboratory of Infrared Physics, Shanghai Institute of Technical
Physics, Chinese Academy of Sciences, Shanghai200083, China
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8
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Huang H, Peng J, Li Z, Dong H, Huang L, Wen M, Wu F. Defect-Induced Ultrafast Nonadiabatic Electron-Hole Recombination Process in PtSe 2 Monolayer. J Phys Chem Lett 2022; 13:10988-10993. [PMID: 36404591 DOI: 10.1021/acs.jpclett.2c03306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Defects are inevitable in two-dimensional materials due to the growth condition, which results in many unexpected changes in materials' properties. Here, we have mainly discussed the nonradiative recombination dynamics of PtSe2 monolayer without/with native point defects. Based on first-principles calculations, a shallow p-type defect state is introduced by a Se antisite, and three n-type defect states with a double-degenerate shallow defect state and a deep defect state are introduced by a Se vacancy. Significantly, these defect states couple strongly to the pristine valence band maximum and lead to the enhancement of the in-plane vibrational Eg mode. Both factors appreciably increase the nonadiabatic coupling, accelerating the electron-hole recombination process. An explanation of PtSe2-based photodetectors with the slow response, compared to conventional devices, is provided by studying this nonradiative transitions process.
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Affiliation(s)
- Hongfu Huang
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou510006, China
| | - Junhao Peng
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou510006, China
| | - Zixuan Li
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou510006, China
| | - Huafeng Dong
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou510006, China
- Guangdong Provincial Key Laboratory of Information Photonics Technology, Guangdong University of Technology, Guangzhou510006, China
| | - Le Huang
- School of Materials and Energy, Guangdong University of Technology, Guangzhou510006, China
| | - Minru Wen
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou510006, China
| | - Fugen Wu
- Guangdong Provincial Key Laboratory of Information Photonics Technology, Guangdong University of Technology, Guangzhou510006, China
- School of Materials and Energy, Guangdong University of Technology, Guangzhou510006, China
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9
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Cho S, Jeong BJ, Choi KH, Lee B, Jeon J, Lee SH, Kim BJ, Lee JH, Oh HS, Yu HK, Choi JY. Novel High Current-Carrying Quasi-1D Material: Nb 2 PdS 6. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2205344. [PMID: 36323611 DOI: 10.1002/smll.202205344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/05/2022] [Indexed: 06/16/2023]
Abstract
A quasi-one-dimensional van der Waals metallic nanowire Nb2 PdS6 is synthesized, and its electrical characteristics are analyzed. The chemical vapor transport method is applied to produce centimeter-scale Nb2 PdS6 crystals with needle-like structures and X-ray diffraction (XRD) confirms their high crystallinity. Scanning transmission electron microscopy reveals the crystal orientation and atomic arrangement of the specific region with atomic resolution. The electrical properties are examined by delaminating bulk Nb2 PdS6 crystals into a few nanometer-scale wires onto 100 nm-SiO2 /Si substrates using a mechanical exfoliation process. Ohmic behavior is confirmed at the low-field measurements regardless of their thickness variation, and 4.64 nm-thick Nb2 PdS6 shows a breakdown current density (JBD ) of 52 MA cm-2 when the high electrical field is delivered. Moreover, with further exfoliation down to a single atomic chain, the JBD of Nb2 PdS6 is predicted to have a value of 527 MA cm-2 . The breakdown of Nb2 PdS6 proceeds due to the Joule heating mechanism, and the Nb2 PdS6 nanowires are well fitted to the 1D thermal dissipating model.
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Affiliation(s)
- Sooheon Cho
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Byung Joo Jeong
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Kyung Hwan Choi
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Bom Lee
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Jiho Jeon
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Sang Hoon Lee
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Bum Jun Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Jae-Hyun Lee
- Department of Materials Science and Engineering & Department of Energy Systems Research, Ajou University, Suwon, 16499, Republic of Korea
| | - Hyung-Suk Oh
- KIST-SKKU Carbon-Neutral Research Center, Sungkyunkwan University, Suwon, 16419, Republic of Korea
- Clean Energy Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Hak Ki Yu
- Department of Materials Science and Engineering & Department of Energy Systems Research, Ajou University, Suwon, 16499, Republic of Korea
| | - Jae-Young Choi
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 16419, Republic of Korea
- KIST-SKKU Carbon-Neutral Research Center, Sungkyunkwan University, Suwon, 16419, Republic of Korea
- Clean Energy Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
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10
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Kempt R, Lukas S, Hartwig O, Prechtl M, Kuc A, Brumme T, Li S, Neumaier D, Lemme MC, Duesberg GS, Heine T. Stacking Polymorphism in PtSe 2 Drastically Affects Its Electromechanical Properties. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201272. [PMID: 35652199 PMCID: PMC9353474 DOI: 10.1002/advs.202201272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/28/2022] [Indexed: 06/15/2023]
Abstract
PtSe2 is one of the most promising materials for the next generation of piezoresistive sensors. However, the large-scale synthesis of homogeneous thin films with reproducible electromechanical properties is challenging due to polycrystallinity. It is shown that stacking phases other than the 1T phase become thermodynamically available at elevated temperatures that are common during synthesis. It is shown that these phases can make up a significant fraction in a polycrystalline thin film and discuss methods to characterize them, including their Seebeck coefficients. Lastly, their gauge factors, which vary strongly and heavily impact the performance of a nanoelectromechanical device are estimated.
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Affiliation(s)
- Roman Kempt
- Chair of Theoretical ChemistryTechnische Universität DresdenBergstrasse 66Dresden01069Germany
| | - Sebastian Lukas
- Chair of Electronic DevicesRWTH Aachen UniversityOtto‐Blumenthal‐Str. 2Aachen52074Germany
| | - Oliver Hartwig
- Insitute of PhysicsFaculty of Electrical Engineering and Information Technology (EIT 2)Universität der Bundeswehr MünchenWerner‐Heisenberg‐Weg 39Neubiberg85577Germany
| | - Maximilian Prechtl
- Insitute of PhysicsFaculty of Electrical Engineering and Information Technology (EIT 2)Universität der Bundeswehr MünchenWerner‐Heisenberg‐Weg 39Neubiberg85577Germany
| | - Agnieszka Kuc
- Helmholtz‐Zentrum Dresden‐RossendorfPermoserstrasse 15Leipzig04318Germany
| | - Thomas Brumme
- Chair of Theoretical ChemistryTechnische Universität DresdenBergstrasse 66Dresden01069Germany
| | - Sha Li
- AMO GmbHAdvanced Microelectronic Center AachenOtto‐Blumenthal‐Str. 25Aachen52074Germany
| | - Daniel Neumaier
- AMO GmbHAdvanced Microelectronic Center AachenOtto‐Blumenthal‐Str. 25Aachen52074Germany
- Chair of Smart Sensor SystemsBergische Universität WuppertalLise‐Meitner‐Str. 13Wuppertal42119Germany
| | - Max C. Lemme
- AMO GmbHAdvanced Microelectronic Center AachenOtto‐Blumenthal‐Str. 25Aachen52074Germany
- Chair of Electronic DevicesRWTH Aachen UniversityOtto‐Blumenthal‐Str. 2Aachen52074Germany
| | - Georg S. Duesberg
- Insitute of PhysicsFaculty of Electrical Engineering and Information Technology (EIT 2)Universität der Bundeswehr MünchenWerner‐Heisenberg‐Weg 39Neubiberg85577Germany
| | - Thomas Heine
- Chair of Theoretical ChemistryTechnische Universität DresdenBergstrasse 66Dresden01069Germany
- Helmholtz‐Zentrum Dresden‐RossendorfPermoserstrasse 15Leipzig04318Germany
- Department of ChemistryYonsei UniversitySeodaemun‐guSeoul120‐749Republic of Korea
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11
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Shen Z, Zhang C, Meng Y, Wang Z. Highly Tunable, Broadband, and Negative Photoresponse MoS 2 Photodetector Driven by Ion-Gel Gate Dielectrics. ACS APPLIED MATERIALS & INTERFACES 2022; 14:32412-32419. [PMID: 35816428 DOI: 10.1021/acsami.2c08341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Revealing the light-matter interaction of molybdenum disulfide (MoS2) and further improving its tunability facilitate the construction of highly integrated optoelectronics in communication and wearable healthcare, but it still remains a significant challenge. Herein, polyvinylidene fluoride and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (PVDF-EMIM-TFSI) ion-gel are employed to replace the oxide to fabricate a MoS2-based phototransistor. The high capacitance enables a large tunability of the carrier concentration that results in ambipolar transport of MoS2. It is found that the photoelectrical effect of the MoS2 ion-gel phototransistor can be greatly tuned by the gate voltage including its photoresponsivity, detectivity, and response wavelength. An abnormal negative photoelectrical effect in both the electron branch and the hole branch is observed which is due to the adsorption/desorption of the C2F6NO4S2- ion. By tuning the carrier concentration, the photoresponse can be extended from the visible region to the short infrared region. At 1200 nm, the photoresponse and detectivity can be tuned as large as 0.90 A/W and 1.88 × 1011 Jones, respectively. Ultimately, by combining the tunability of gate voltage and wavelength, it is demonstrated that the photoelectrical effect is dominated by the photogating effect in the hole carrier, while it is coregulated by a photogating and photothermal effect in electron carrier. This study provides new insights for developing a highly tunable broadband photodetector with low consumption.
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Affiliation(s)
- Zhenzhen Shen
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Chunchi Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Yajing Meng
- Mental Health Center and Psychiatric Laboratory, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu 610065, China
| | - Zegao Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
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12
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Chen J, Zhou J, Xu W, Wen Y, Liu Y, Warner JH. Atomic-Level Dynamics of Point Vacancies and the Induced Stretched Defects in 2D Monolayer PtSe 2. NANO LETTERS 2022; 22:3289-3297. [PMID: 35389659 DOI: 10.1021/acs.nanolett.1c04275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Monolayer PtSe2 holds great potential in extending 2D devices functionality, but their atomic-level-defect study is still limited. Here, we investigate the atomic structures of lattice imperfections from point to stretched 1D defects in 1T-PtSe2 monolayers, using annular dark-field scanning transmission electron microscopy (ADF-STEM). We show Se vacancies (VSe) have preferential sites with high beam-induced mobility. Diverse divacancies form with paired VSe. We found stretched linear defects triggered by dynamics of VSe that altered strain fields, distinct from the line vacancies in 2H-phase 2D materials. The paired VSe stability and formation possibility of vacancy lines are evaluated by density functional theory. Lower sputtering energy in PtSe2 than that in MoS2 can cause larger possibility of atomic loss compared to diffusion required for creating VSe lines. This provides atomic insights into the defects in 1T-PtSe2 and shows how a deviated 1D structure is embedded in a 2D system without losing atom lines.
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Affiliation(s)
- Jun Chen
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
| | - Jiang Zhou
- Materials Graduate Program, Texas Materials Institute, The University of Texas at Austin, 204 East Dean Keeton Street, Austin, Texas 78712, United States
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Ministry of Education, Dalian 116024, China
| | - Wenshuo Xu
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
| | - Yi Wen
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
| | - Yuanyue Liu
- Materials Graduate Program, Texas Materials Institute, The University of Texas at Austin, 204 East Dean Keeton Street, Austin, Texas 78712, United States
| | - Jamie H Warner
- Materials Graduate Program, Texas Materials Institute, The University of Texas at Austin, 204 East Dean Keeton Street, Austin, Texas 78712, United States
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
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13
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Yang P, Zha J, Gao G, Zheng L, Huang H, Xia Y, Xu S, Xiong T, Zhang Z, Yang Z, Chen Y, Ki DK, Liou JJ, Liao W, Tan C. Growth of Tellurium Nanobelts on h-BN for p-type Transistors with Ultrahigh Hole Mobility. NANO-MICRO LETTERS 2022; 14:109. [PMID: 35441245 PMCID: PMC9018950 DOI: 10.1007/s40820-022-00852-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/24/2022] [Indexed: 05/15/2023]
Abstract
The lack of stable p-type van der Waals (vdW) semiconductors with high hole mobility severely impedes the step of low-dimensional materials entering the industrial circle. Although p-type black phosphorus (bP) and tellurium (Te) have shown promising hole mobilities, the instability under ambient conditions of bP and relatively low hole mobility of Te remain as daunting issues. Here we report the growth of high-quality Te nanobelts on atomically flat hexagonal boron nitride (h-BN) for high-performance p-type field-effect transistors (FETs). Importantly, the Te-based FET exhibits an ultrahigh hole mobility up to 1370 cm2 V-1 s-1 at room temperature, that may lay the foundation for the future high-performance p-type 2D FET and metal-oxide-semiconductor (p-MOS) inverter. The vdW h-BN dielectric substrate not only provides an ultra-flat surface without dangling bonds for growth of high-quality Te nanobelts, but also reduces the scattering centers at the interface between the channel material and the dielectric layer, thus resulting in the ultrahigh hole mobility .
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Affiliation(s)
- Peng Yang
- College of Electronics and Information Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
- Department of Electrical Engineering, City University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Jiajia Zha
- Department of Electrical Engineering, City University of Hong Kong, Hong Kong SAR, People's Republic of China.
| | - Guoyun Gao
- Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, People's Republic of China
| | - Long Zheng
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Haoxin Huang
- Department of Electrical Engineering, City University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Yunpeng Xia
- Department of Electrical Engineering, City University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Songcen Xu
- Department of Electrical Engineering, City University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Tengfei Xiong
- Department of Chemistry, City University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Zhuomin Zhang
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Zhengbao Yang
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Ye Chen
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Dong-Keun Ki
- Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, People's Republic of China
| | - Juin J Liou
- College of Electronics and Information Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Wugang Liao
- College of Electronics and Information Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China.
| | - Chaoliang Tan
- Department of Electrical Engineering, City University of Hong Kong, Hong Kong SAR, People's Republic of China.
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong SAR, People's Republic of China.
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14
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Huey WLB, Ochs AM, Williams AJ, Zhang Y, Kraguljac S, Deng Z, Moore CE, Windl W, Lau CN, Goldberger JE. Cr xPt 1-xTe 2 ( x ≤ 0.45): A Family of Air-Stable and Exfoliatable van der Waals Ferromagnets. ACS NANO 2022; 16:3852-3860. [PMID: 35176210 DOI: 10.1021/acsnano.1c08681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The development of thermally robust, air-stable, exfoliatable two-dimensional van der Waals ferromagnetic materials with high transition temperatures is of great importance. Here, we establish a family of magnetic alloys, CrxPt1-xTe2 (x ≤ 0.45), that combines the stability of the late transition metal dichalcogenide PtTe2 with magnetism from Cr. These materials are easily grown in crystal form from the melt, are stable in ambient conditions, and have among the highest concentrations of magnetic element substitution in transition metal dichalcogenide alloys. The highest Cr-substituted material, Cr0.45Pt0.55Te2, exhibits ferromagnetic behavior below 220 K, and the easy axis is along the c-axis of the material, as determined using a combination of neutron diffraction and magnetic susceptibility measurements. These materials are metallic, with appreciable magnetoresistance below the Curie temperature. Single-crystal and powder diffraction measurements indicate Cr readily alloys onto the Pt site and does not sit in the van der Waals space, allowing these materials to be readily exfoliated to the few-layer regime. In summary, this air-stable, exfoliatable, high transition temperature ferromagnet shows great potential as building block for future 2D devices.
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Affiliation(s)
- Warren L B Huey
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Avenue, Columbus, Ohio 43210, United States
| | - Andrew M Ochs
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Avenue, Columbus, Ohio 43210, United States
| | - Archibald J Williams
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Avenue, Columbus, Ohio 43210, United States
| | - Yuxin Zhang
- Department of Physics, The Ohio State University, 191 W. Woodruff Avenue, Columbus, Ohio 43210, United States
| | - Simo Kraguljac
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Avenue, Columbus, Ohio 43210, United States
| | - Ziling Deng
- Department of Materials Science and Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Curtis E Moore
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Avenue, Columbus, Ohio 43210, United States
| | - Wolfgang Windl
- Department of Materials Science and Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Chun Ning Lau
- Department of Physics, The Ohio State University, 191 W. Woodruff Avenue, Columbus, Ohio 43210, United States
| | - Joshua E Goldberger
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Avenue, Columbus, Ohio 43210, United States
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15
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Parhizkar S, Prechtl M, Giesecke AL, Suckow S, Wahl S, Lukas S, Hartwig O, Negm N, Quellmalz A, Gylfason K, Schall D, Wuttig M, Duesberg GS, Lemme MC. Two-Dimensional Platinum Diselenide Waveguide-Integrated Infrared Photodetectors. ACS PHOTONICS 2022; 9:859-867. [PMID: 35308407 PMCID: PMC8931762 DOI: 10.1021/acsphotonics.1c01517] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Indexed: 05/11/2023]
Abstract
Low-cost, easily integrable photodetectors (PDs) for silicon (Si) photonics are still a bottleneck for photonic-integrated circuits (PICs), especially for wavelengths above 1.8 μm. Multilayered platinum diselenide (PtSe2) is a semi-metallic two-dimensional (2D) material that can be synthesized below 450 °C. We integrate PtSe2-based PDs directly by conformal growth on Si waveguides. The PDs operate at 1550 nm wavelength with a maximum responsivity of 11 mA/W and response times below 8.4 μs. Fourier-transform IR spectroscopy in the wavelength range from 1.25 to 28 μm indicates the suitability of PtSe2 for PDs far into the IR wavelength range. Our PtSe2 PDs integrated by direct growth outperform PtSe2 PDs manufactured by standard 2D layer transfer. The combination of IR responsivity, chemical stability, selective and conformal growth at low temperatures, and the potential for high carrier mobility makes PtSe2 an attractive 2D material for optoelectronics and PICs.
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Affiliation(s)
- Shayan Parhizkar
- Chair
of Electronic Devices, RWTH Aachen University, Otto-Blumenthal-Str. 2, 52074 Aachen, Germany
- AMO
GmbH, Advanced Microelectronic Center Aachen, Otto-Blumenthal-Str. 25, 52074 Aachen, Germany
| | - Maximilian Prechtl
- Institute
of Physics, Faculty of Electrical Engineering and Information Technology
(EIT 2) and Center for Integrated Sensor Systems, University of the Bundeswehr Munich, 85577 Neubiberg, Germany
| | - Anna Lena Giesecke
- AMO
GmbH, Advanced Microelectronic Center Aachen, Otto-Blumenthal-Str. 25, 52074 Aachen, Germany
| | - Stephan Suckow
- AMO
GmbH, Advanced Microelectronic Center Aachen, Otto-Blumenthal-Str. 25, 52074 Aachen, Germany
| | - Sophia Wahl
- Institute
of Physics IA, RWTH Aachen University, Otto-Blumenthal-Straße, 52074 Aachen, Germany
| | - Sebastian Lukas
- Chair
of Electronic Devices, RWTH Aachen University, Otto-Blumenthal-Str. 2, 52074 Aachen, Germany
| | - Oliver Hartwig
- Institute
of Physics, Faculty of Electrical Engineering and Information Technology
(EIT 2) and Center for Integrated Sensor Systems, University of the Bundeswehr Munich, 85577 Neubiberg, Germany
| | - Nour Negm
- Chair
of Electronic Devices, RWTH Aachen University, Otto-Blumenthal-Str. 2, 52074 Aachen, Germany
- AMO
GmbH, Advanced Microelectronic Center Aachen, Otto-Blumenthal-Str. 25, 52074 Aachen, Germany
| | - Arne Quellmalz
- Division
of Micro and Nanosystems, School of Electrical Engineering and Computer
Science, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Kristinn Gylfason
- Division
of Micro and Nanosystems, School of Electrical Engineering and Computer
Science, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Daniel Schall
- AMO
GmbH, Advanced Microelectronic Center Aachen, Otto-Blumenthal-Str. 25, 52074 Aachen, Germany
- Black Semiconductor
GmbH, Schloss-Rahe-Straße
15, 52072 Aachen, Germany
| | - Matthias Wuttig
- Institute
of Physics IA, RWTH Aachen University, Otto-Blumenthal-Straße, 52074 Aachen, Germany
| | - Georg S. Duesberg
- Institute
of Physics, Faculty of Electrical Engineering and Information Technology
(EIT 2) and Center for Integrated Sensor Systems, University of the Bundeswehr Munich, 85577 Neubiberg, Germany
| | - Max C. Lemme
- Chair
of Electronic Devices, RWTH Aachen University, Otto-Blumenthal-Str. 2, 52074 Aachen, Germany
- AMO
GmbH, Advanced Microelectronic Center Aachen, Otto-Blumenthal-Str. 25, 52074 Aachen, Germany
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16
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Karkuzhali R, Manoj S, Shanmugapriya K, Narendra Kumar AV, Gopu G, Muniyappan N, Jeon BH, Muthu Prabhu S. MXene-based O/Se-rich bimetallic nanocomposites for high performance solid-state symmetric supercapacitors. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2021.122727] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Zhou G, Zhao H, Li X, Sun Z, Wu H, Li L, An H, Ruan S, Peng Z. Highly-Responsive Broadband Photodetector Based on Graphene-PTAA-SnS 2 Hybrid. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:475. [PMID: 35159820 PMCID: PMC8839128 DOI: 10.3390/nano12030475] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/26/2022] [Accepted: 01/26/2022] [Indexed: 12/10/2022]
Abstract
The development of wearable systems stimulate the exploration of flexible broadband photodetectors with high responsivity and stability. In this paper, we propose a facile liquid-exfoliating method to prepare SnS2 nanosheets with high-quality crystalline structure and optoelectronic properties. A flexible photodetector is fabricated using the SnS2 nanosheets with graphene-poly[bis(4-phenyl) (2,4,6-trimethylphenyl) amine (PTAA) hybrid structure. The liquid-exfoliated SnS2 nanosheets enable the photodetection from ultraviolet to near infrared with high responsivity and detectivity. The flexible broadband photodetector demonstrates a maximum responsivity of 1 × 105 A/W, 3.9 × 104 A/W, 8.6 × 102 A/W and 18.4 A/W under 360 nm, 405 nm, 532 nm, and 785 nm illuminations, with specific detectivity up to ~1012 Jones, ~1011 Jones, ~109 Jones, and ~108 Jones, respectively. Furthermore, the flexible photodetector exhibits nearly invariable performance over 3000 bending cycles, rendering great potentials for wearable applications.
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Affiliation(s)
- Guigang Zhou
- Center for Stretchable Electronics and NanoSensors, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; (G.Z.); (Z.P.)
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; (Z.S.); (H.W.)
| | - Huancheng Zhao
- Shenzhen Key Laboratory of Laser Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; (H.Z.); (S.R.)
| | - Xiangyang Li
- Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, College of Applied Technology, Shenzhen University, Shenzhen 518060, China;
| | - Zhenhua Sun
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; (Z.S.); (H.W.)
| | - Honglei Wu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; (Z.S.); (H.W.)
| | - Ling Li
- Shenzhen Key Laboratory of Laser Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; (H.Z.); (S.R.)
| | - Hua An
- Center for Stretchable Electronics and NanoSensors, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; (G.Z.); (Z.P.)
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; (Z.S.); (H.W.)
| | - Shuangchen Ruan
- Shenzhen Key Laboratory of Laser Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; (H.Z.); (S.R.)
| | - Zhengchun Peng
- Center for Stretchable Electronics and NanoSensors, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; (G.Z.); (Z.P.)
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; (Z.S.); (H.W.)
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18
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Dong K, Xu Z, He X, Zhao D, Chen H, Liang J, Luo Y, Sun S, Zheng D, Liu Q, Alshehri AA, Feng Z, Wang Y, Sun X. Ultrathin single-crystal PtSe2 nanosheet for high-efficiency O2 electroreduction to H2O2. Chem Commun (Camb) 2022; 58:10683-10686. [DOI: 10.1039/d2cc04503f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrochemical synthesis of H2O2 via a two-electron oxygen reduction reaction (2e‒ ORR) has emerged as a promising alternative to the anthraquinone process. However, the strong competition from the 4e‒ pathway...
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19
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Zheng P, Jiang Y, Li H, Dai X. Electron transport properties of PtSe 2 nanoribbons with distinct edge reconstructions. RSC Adv 2022; 12:25872-25880. [PMID: 36199596 PMCID: PMC9465823 DOI: 10.1039/d2ra04677f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 08/26/2022] [Indexed: 11/21/2022] Open
Abstract
Edge reconstructions of two-dimensional (2D) materials play a central role in determining the electronic transport properties of nanodevices. However, it is not feasible to study the relationship between edge reconstruction and electronic properties using experimental methods because of the complexity of the experimental environment and the diversity of edge reconstruction. Herein, we have combined density functional theory (DFT) calculations and the nonequilibrium Green's function (NEGF) method to investigate the inner physical mechanism of platinum diselenide (PtSe2) nanoribbons, revealing distinctive negative differential resistance (NDR) behaviors in different nanoribbons with various edge reconstructions. The armchair PtSe2 nanoribbons with different edge reconstructions are all metallic, while the zigzag PtSe2 nanoribbons are semiconducting when the ratio of Pt to Se atoms at the edge is 1 : 2. These results reveal the internal source of the difference in the electron transport properties of PtSe2 nanoribbons with different edge reconstructions, providing new ideas for the design of novel multifunctional PtSe2 semiconducting and conducting electronic nanodevices with NDR properties. Edge reconstructions of two-dimensional (2D) materials play a central role in determining the electronic transport properties of nanodevices.![]()
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Affiliation(s)
- Peiru Zheng
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, P. R. China
| | - Yanyan Jiang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, P. R. China
| | - Hui Li
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, P. R. China
| | - Xinyue Dai
- School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
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20
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Luo X, Peng Z, Wang Z, Dong M. Layer-by-Layer Growth of AA-Stacking MoS 2 for Tunable Broadband Phototransistors. ACS APPLIED MATERIALS & INTERFACES 2021; 13:59154-59163. [PMID: 34856097 DOI: 10.1021/acsami.1c19906] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The stacking configuration has been considered as an important additional degree of freedom to tune the physical property of layered materials, such as superconductivity and interlayer excitons. However, the facile growth of highly uniform stacking configuration is still a challenge. Herein, the AA-stacking MoS2 domains with a ratio up to 99.5% has been grown by using the modified chemical vapor deposition through introducing NaCl molecules in the confined space. By tuning the growth time, MoS2 domains would transit from an AA-stacking bilayer to an AAAAA-stacking five-layer. The epitaxial growth mechanism has been insightfully studied, revealing that the critical nucleation size of the AA-stacking bilayer is 5.0 ± 3.0 μm. Through investigation of the photoluminescence, the photoemission, especially the indirect photoexcitation, is dependent on both the stacking fashion and layer number. Furthermore, by studying the gate-tuned MoS2 phototransistors, we found a significant dependence on the stacking configuration of MoS2 of the photoexcitation and a different gate tunable photoresponse. The AAA-stacking trilayer MoS2 phototransistor delivers a photoresponse of 978.14 A W-1 at 550 nm. By correction of the external quantum efficiency with external field and illumination power density, it has been found that the photoresponse tunability is dependent on the layer number due to the strong photogating effect. This strategy provides a general avenue for the epitaxial growth of van der Waals film which will further facilitate the applications in a tunable photodetector.
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Affiliation(s)
- Xiai Luo
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Zhenghan Peng
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Zegao Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Mingdong Dong
- Interdisciplinary Nanoscience Center, Aarhus University, Aarhus 8000, Denmark
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21
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Wang P, He D, Wang Y, Zhang X, He X, He J, Zhao H. Ultrafast Interlayer Charge Transfer between Bilayer PtSe 2 and Monolayer WS 2. ACS APPLIED MATERIALS & INTERFACES 2021; 13:57822-57830. [PMID: 34797636 DOI: 10.1021/acsami.1c18189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Interlayer charge transfer (CT) between PtSe2 and WS2 is studied experimentally. Layer-selective pump-probe and photoluminescence quenching measurements reveal ultrafast interlayer CT in the heterostructure formed by bilayer PtSe2 and monolayer WS2, confirming its type-II band alignment. The CT facilitates the formation of the interlayer excitons with a lifetime of several hundred ps to 1 ns, a diffusion coefficient of 0.9 cm2 s-1, and a diffusion length reaching 200 nm. These results demonstrate the integration of PtSe2 with other materials in van der Waals heterostructures with novel charge-transfer properties and help develop fundamental understanding on the performance of various optoelectronic devices based on heterostructures involving PtSe2.
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Affiliation(s)
- Pengzhi Wang
- College of Mathematics and Physics, Beijing University of Chemical Technology, Beijing 100029, China
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China
| | - Dawei He
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China
| | - Yongsheng Wang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China
| | - Xiaoxian Zhang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China
| | - Xiaoyue He
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - Jiaqi He
- College of Mathematics and Physics, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hui Zhao
- Department of Physics and Astronomy, The University of Kansas, Lawrence, Kansas 66045, United States
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22
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Chen J, Wang Y, Xu W, Wen Y, Ryu GH, Grossman JC, Warner JH. Atomic Structure of Dislocations and Grain Boundaries in Two-Dimensional PtSe 2. ACS NANO 2021; 15:16748-16759. [PMID: 34610239 DOI: 10.1021/acsnano.1c06736] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Each 2D material has a distinct structure for its grain boundary and dislocation cores, which is dictated by both the crystal lattice geometry and the elements that participate in bonding. For the class of noble metal dichalcogenides, this has yet to be thoroughly investigated at the atomic scale. Here, we examine the atomic structure of the dislocations and grain boundaries (GBs) in two-dimensional PtSe2, using atomic-resolution annular dark field scanning transmission electron microscopy, combined with density functional theory and empirical force field calculations. The PtSe2 we study adopts the 1T phase in large-area polycrystalline films with numerous planar tilt GB distinct dislocations, including 5|7+Se and 4|4|8+Se polygons, in tilt-angle monolayer GBs, with features sharply distinguished from those in 2H-phase TMDs. On the basis of dislocation cores, the GB structures are investigated in terms of pathways of dislocation chain arrangement, dislocation core distributions in different misorientation angles, and 2D strain fields induced. Based on the Frank-Bilby equation, the deduced Burgers vector magnitude is close to the lattice constant of 1T-PtSe2, building the quantitative relationship of dislocation spacings and small GB angles. The 30° GBs are most frequently formed as a stitched interface between the armchair and zigzag lattices, constructed by a string of 5|7+Se dislocations asymmetrically with a small deviation angle. Another special angle GB, mirror twin 60° GB, is also mapped linearly by metal-condensed asymmetric or Se-rich symmetric dislocations. This report gives atomic-level insights into the GBs and dislocations in 1T-phase noble metal TMD PtSe2, which is a promising material to underpin extending properties of 2D materials by local structure engineering.
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Affiliation(s)
- Jun Chen
- Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH, United Kingdom
| | - Yanming Wang
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Wenshuo Xu
- Department of Physics, National University of Singapore, 2Science Drive 3, 117551, Singapore
| | - Yi Wen
- Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH, United Kingdom
| | - Gyeong Hee Ryu
- School of Materials Science and Engineering, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Jeffrey C Grossman
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Jamie H Warner
- Materials Graduate Program, Texas Materials Institute, The University of Texas at Austin, 204 East Dean Keeton Street, Austin, Texas 78712, United States
- Walker Department of Mechanical Engineering, The University of Texas at Austin, 204 East Dean Keeton Street, Austin, Texas 78712, United States
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23
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Yu JC, Abdel-Rahman MK, Fairbrother DH, McElwee-White L. Charged Particle-Induced Surface Reactions of Organometallic Complexes as a Guide to Precursor Design for Electron- and Ion-Induced Deposition of Nanostructures. ACS APPLIED MATERIALS & INTERFACES 2021; 13:48333-48348. [PMID: 34633789 DOI: 10.1021/acsami.1c12327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Focused electron beam-induced deposition (FEBID) and focused ion beam-induced deposition (FIBID) are direct-write fabrication techniques that use focused beams of charged particles (electrons or ions) to create 3D metal-containing nanostructures by decomposing organometallic precursors onto substrates in a low-pressure environment. For many applications, it is important to minimize contamination of these nanostructures by impurities from incomplete ligand dissociation and desorption. This spotlight on applications describes the use of ultra high vacuum surface science studies to obtain mechanistic information on electron- and ion-induced processes in organometallic precursor candidates. The results are used for the mechanism-based design of custom precursors for FEBID and FIBID.
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Affiliation(s)
- Jo-Chi Yu
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Mohammed K Abdel-Rahman
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218-2685, United States
| | - D Howard Fairbrother
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218-2685, United States
| | - Lisa McElwee-White
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
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24
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Chen D, Zhu J, Pu Z, Mu S. Anion Modulation of Pt-Group Metals and Electrocatalysis Applications. Chemistry 2021; 27:12257-12271. [PMID: 34129268 DOI: 10.1002/chem.202101645] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Indexed: 12/14/2022]
Abstract
Pt-group metal (PGM) electrocatalysts with unique electronic structures and irreplaceable comprehensive properties play crucial roles in electrocatalysis. Anion engineering can create a series of PGM compounds (such as RuP2 , IrP2 , PtP2 , RuB2 , Ru2 B3 , RuS2 , etc.) that provide a promising prospect for improving the electrocatalytic performance and use of Pt-group noble metals. This review seeks the electrochemical activity origin of anion-modulated PGM compounds, and systematically analyzes and summarizes their synthetic strategies and energy-relevant applications in electrocatalysis. Orientation towards the sustainable development of nonfossil resources has stimulated a blossoming interest in the design of advanced electrocatalysts for clean energy conversion. The anion-modulated strategy for Pt-group metals (PGMs) by means of anion engineering possesses high flexibility to regulate the electronic structure, providing a promising prospect for constructing electrocatalysts with superior activity and stability to satisfy a future green electrochemical energy conversion system. Based on the previous work of our group and others, this review summarizes the up-to-date progress on anion-modulated PGM compounds (such as RuP2 , IrP2 , PtP2 , RuB2 , Ru2 B3 , RuS2 , etc.) in energy-related electrocatalysis from the origin of their activity and synthetic strategies to electrochemical applications including hydrogen evolution reaction (HER), oxygen evolution reaction (OER), oxygen reduction reaction (ORR), hydrogen oxidation reaction (HOR), N2 reduction reaction (NRR), and CO2 reduction reaction (CO2 RR). At the end, the key problems, countermeasures and future development orientations of anion-modulated PGM compounds toward electrocatalytic applications are proposed.
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Affiliation(s)
- Ding Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China.,Foshan Xianhu Laboratory of Advanced Energy Science and Technology, Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, P. R. China
| | - Jiawei Zhu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Zonghua Pu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Shichun Mu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China.,Foshan Xianhu Laboratory of Advanced Energy Science and Technology, Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, P. R. China
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25
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Qin T, Wang Z, Wang Y, Besenbacher F, Otyepka M, Dong M. Recent Progress in Emerging Two-Dimensional Transition Metal Carbides. NANO-MICRO LETTERS 2021; 13:183. [PMID: 34417663 PMCID: PMC8379312 DOI: 10.1007/s40820-021-00710-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 07/25/2021] [Indexed: 05/17/2023]
Abstract
As a new member in two-dimensional materials family, transition metal carbides (TMCs) have many excellent properties, such as chemical stability, in-plane anisotropy, high conductivity and flexibility, and remarkable energy conversation efficiency, which predispose them for promising applications as transparent electrode, flexible electronics, broadband photodetectors and battery electrodes. However, up to now, their device applications are in the early stage, especially because their controllable synthesis is still a great challenge. This review systematically summarized the state-of-the-art research in this rapidly developing field with particular focus on structure, property, synthesis and applicability of TMCs. Finally, the current challenges and future perspectives are outlined for the application of 2D TMCs.
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Affiliation(s)
- Tianchen Qin
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Zegao Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, People's Republic of China.
| | - Yuqing Wang
- Interdisciplinary Nanoscience Center, Aarhus University, 8000, Aarhus, Denmark
| | | | - Michal Otyepka
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University, 77146, Olomouc, Czech Republic
| | - Mingdong Dong
- Interdisciplinary Nanoscience Center, Aarhus University, 8000, Aarhus, Denmark.
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26
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Hrdá J, Tašková V, Vojteková T, Slušná LP, Dobročka E, Píš I, Bondino F, Hulman M, Sojková M. Tuning the charge carrier mobility in few-layer PtSe 2 films by Se : Pt ratio. RSC Adv 2021; 11:27292-27297. [PMID: 35480646 PMCID: PMC9037610 DOI: 10.1039/d1ra04507e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 12/08/2021] [Accepted: 08/03/2021] [Indexed: 11/21/2022] Open
Abstract
Recently, few-layer PtSe2 films have attracted significant attention due to their properties and promising applications in high-speed electronics, spintronics and optoelectronics. Until now, the transport properties of this material have not reached the theoretically predicted values, especially with regard to carrier mobility. In addition, it is not yet known which growth parameters (if any) can experimentally affect the carrier mobility value. This work presents the fabrication of horizontally aligned PtSe2 films using one-zone selenization of pre-deposited platinum layers. We have identified the Se : Pt ratio as a parameter controlling the charge carrier mobility in the thin films. The mobility increases more than twice as the ratio changes in a narrow interval around a value of 2. A simultaneous reduction of the carrier concentration suggests that ionized impurity scattering is responsible for the observed mobility behaviour. This significant finding may help to better understand the transport properties of few-layer PtSe2 films.
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Affiliation(s)
- Jana Hrdá
- Institute of Electrical Engineering, SAS Dúbravská cesta 9 841 04 Bratislava Slovakia
- Faculty of Electrical Engineering and Information Technology, Slovak University of Technology Ilkovičova 3 812 09 Bratislava Slovakia
| | - Valéria Tašková
- Institute of Electrical Engineering, SAS Dúbravská cesta 9 841 04 Bratislava Slovakia
| | - Tatiana Vojteková
- Institute of Electrical Engineering, SAS Dúbravská cesta 9 841 04 Bratislava Slovakia
- Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava Mlynská dolina F2 842 48, Bratislava Slovak Republic
| | | | - Edmund Dobročka
- Institute of Electrical Engineering, SAS Dúbravská cesta 9 841 04 Bratislava Slovakia
| | - Igor Píš
- IOM-CNR, Laboratorio TASC S.S. 14 km 163.5 34149 Basovizza Trieste Italy
| | - Federica Bondino
- IOM-CNR, Laboratorio TASC S.S. 14 km 163.5 34149 Basovizza Trieste Italy
| | - Martin Hulman
- Institute of Electrical Engineering, SAS Dúbravská cesta 9 841 04 Bratislava Slovakia
| | - Michaela Sojková
- Institute of Electrical Engineering, SAS Dúbravská cesta 9 841 04 Bratislava Slovakia
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27
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Brune V, Grosch M, Weißing R, Hartl F, Frank M, Mishra S, Mathur S. Influence of the choice of precursors on the synthesis of two-dimensional transition metal dichalcogenides. Dalton Trans 2021; 50:12365-12385. [PMID: 34318836 DOI: 10.1039/d1dt01397a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The interest in transition metal dichalcogenides (TMDCs; MEy/2; M = transition metal; E = chalcogenide, y = valence of the metal) has grown exponentially across various science and engineering disciplines due to their unique structural chemistry manifested in a two-dimensional lattice that results in extraordinary electronic and transport properties desired for applications in sensors, energy storage and optoelectronic devices. Since the properties of TMDCs can be tailored by changing the stacking sequence of 2D monolayers with similar or dis-similar materials, a number of synthetic routes essentially based on the disintegration of bulk (e.g., chemical exfoliation) or the integration of atomic constituents (e.g., vapor phase growth) have been explored. Despite a large body of data available on the chemical synthesis of TMDCs, experimental strategies with high repeatability of control over film thickness, phase and compositional purity remain elusive, which calls for innovative synthetic concepts offering, for instance, self-limited growth in the z-direction and homogeneous lateral topography. This review summarizes the recent conceptual advancements in the growth of layered van der Waals TMDCs from both mixtures of metal and chalcogen sources (multi-source precursors; MSPs) and from molecular compounds containing metals and chalcogens in one starting material (single-source precursor; SSPs). The critical evaluation of the strengths, limitations and opportunities of MSP and SSP approaches is provided as a guideline for the fabrication of TMDCs from commercial and customized molecular precursors. For example, alternative synthetic pathways using tailored molecular precursors circumvent the challenges of differential nucleation and crystal growth kinetics that are invariably associated with conventional gas phase chemical vapor transport (CVT) and chemical vapor deposition (CVD) of a mixture of components. The aspects of achieving high compositional purity and alternatives to minimize competing reactions or side products are discussed in the context of efficient chemical synthesis of TMDCs. Moreover, a critical analysis of the potential opportunities and existing bottlenecks in the synthesis of TMDCs and their intrinsic properties is provided.
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Affiliation(s)
- Veronika Brune
- Institute of Inorganic Chemistry, University of Cologne, Greinstraße 6, D-50939 Cologne, Germany.
| | - Matthias Grosch
- Institute of Inorganic Chemistry, University of Cologne, Greinstraße 6, D-50939 Cologne, Germany.
| | - René Weißing
- Institute of Inorganic Chemistry, University of Cologne, Greinstraße 6, D-50939 Cologne, Germany.
| | - Fabian Hartl
- Institute of Inorganic Chemistry, University of Cologne, Greinstraße 6, D-50939 Cologne, Germany.
| | - Michael Frank
- Institute of Inorganic Chemistry, University of Cologne, Greinstraße 6, D-50939 Cologne, Germany.
| | - Shashank Mishra
- Université Claude Bernard Lyon 1, CNRS, UMR 5256, IRCELYON, 2 avenue Albert Einstein, 69626 Villeurbanne, France.
| | - Sanjay Mathur
- Institute of Inorganic Chemistry, University of Cologne, Greinstraße 6, D-50939 Cologne, Germany.
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28
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Cao B, Ye Z, Yang L, Gou L, Wang Z. Recent progress in Van der Waals 2D PtSe 2. NANOTECHNOLOGY 2021; 32:412001. [PMID: 34157685 DOI: 10.1088/1361-6528/ac0d7c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
As a new member in two-dimensional (2D) transition metal dichalcogenides (TMDCs) family, platinum diselenium (PtSe2) has many excellent properties, such as the layer-dependent band gap, high carrier mobility, high photoelectrical coupling, broadband response, etc, thus it shows good promising application in room temperature photodetectors, broadband photodetectors, transistors and other fields. Furthermore, compared with other TMDCs, PtSe2is chemical inert in ambient, showing nano-devices potential with higher performance and stability. However, up to now, the synthesis and its device applications are in its early stage. This review systematically summarized the state of the art of PtSe2from its structure, property, synthesis and potential application. Finally, the current challenges and future perspectives are outlined for the applications of 2D PtSe2.
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Affiliation(s)
- Banglin Cao
- College of Materials Science and Engineering, Sichuan University, Chengdu-610065, People's Republic of China
| | - Zimeng Ye
- College of Materials Science and Engineering, Sichuan University, Chengdu-610065, People's Republic of China
| | - Lei Yang
- College of Materials Science and Engineering, Sichuan University, Chengdu-610065, People's Republic of China
| | - Li Gou
- College of Materials Science and Engineering, Sichuan University, Chengdu-610065, People's Republic of China
| | - Zegao Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu-610065, People's Republic of China
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29
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Fu J, Jiang M, Suo P, Zhang W, Lin X, Yan X, Zhang S, Ma G. Optically controlled ultrafast terahertz switching in wafer scale PtSe 2 thin films. APPLIED OPTICS 2021; 60:5037-5043. [PMID: 34143068 DOI: 10.1364/ao.425337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 05/12/2021] [Indexed: 06/12/2023]
Abstract
In this study, we have reported a newly ultrafast optically modulated terahertz (THz) switch based on the transition metal dichalcogenide (TMD) material platinum diselenide (${{\rm PtSe}_2}$) with different thicknesses. The high-quality ${{\rm PtSe}_2}$ thin films with centimeter scale are fabricated on sapphire substrate by the chemical vapor deposition method. The optical pump and THz probe (OPTP) spectroscopy reveals that the THz response of the thin films is as fast as ${\sim} 2.0 \; {\rm ps}$ after photoexcitation of a 780 nm pulse. Interestingly, we found that the THz response time of the ${{\rm PtSe}_2}$ semimetal phase is faster than that of the semiconducting phase. In addition, the THz response time becomes faster when increasing the film thickness for the semimetal phase ${{\rm PtSe}_2}$, while for the semiconducting phase, the response time becomes slower with film thickness. Moreover, degenerate optical pump and optical probe spectroscopy (OPOP) demonstrated that the ultrafast photoinduced negative absorption (photoinduced bleaching) occurs after photoexcitation of 780 nm, and the subsequent recovery consists of two relaxation processes: the fast component with more than 85% of weight has a lifetime of ${\sim}{1.5}\;{\rm ps}$ for semiconducting-phase films and less than 1 ps for the semimetal phase, similar to the response time obtained from OPTP measurement. The slow component with less than 15% of weight has a lifetime of a few hundred picoseconds. The subpicosecond response time observed in both OPTP and OPOP is ascribed to the carrier trapping by defect states, and the slow relaxation process appearing in OPOP arises from the defect state relevant relaxation that is insensitive to the THz photoconductivity due to the frozen carrier mobility in defect states. Our experimental results demonstrate a new application of TMD materials such as ${{\rm PtSe}_2}$ in THz technology, for instance, the design and fabrication of THz modulators and THz switches.
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30
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Chung CC, Yeh H, Wu PH, Lin CC, Li CS, Yeh TT, Chou Y, Wei CY, Wen CY, Chou YC, Luo CW, Wu CI, Li MY, Li LJ, Chang WH, Chen CW. Atomic-Layer Controlled Interfacial Band Engineering at Two-Dimensional Layered PtSe 2/Si Heterojunctions for Efficient Photoelectrochemical Hydrogen Production. ACS NANO 2021; 15:4627-4635. [PMID: 33651590 DOI: 10.1021/acsnano.0c08970] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Platinum diselenide (PtSe2) is a group-10 two-dimensional (2D) transition metal dichalcogenide that exhibits the most prominent atomic-layer-dependent electronic behavior of "semiconductor-to-semimetal" transition when going from monolayer to bulk form. This work demonstrates an efficient photoelectrochemical (PEC) conversion for direct solar-to-hydrogen (H2) production based on 2D layered PtSe2/Si heterojunction photocathodes. By systematically controlling the number of atomic layers of wafer-scale 2D PtSe2 films through chemical vapor deposition (CVD), the interfacial band alignments at the 2D layered PtSe2/Si heterojunctions can be appropriately engineered. The 2D PtSe2/p-Si heterojunction photocathode consisting of a PtSe2 thin film with a thickness of 2.2 nm (or 3 atomic layers) exhibits the optimized band alignment and delivers the best PEC performance for hydrogen production with a photocurrent density of -32.4 mA cm-2 at 0 V and an onset potential of 1 mA cm-2 at 0.29 V versus a reversible hydrogen electrode (RHE) after post-treatment. The wafer-scale atomic-layer controlled band engineering of 2D PtSe2 thin-film catalysts integrated with the Si light absorber provides an effective way in the renewable energy application for direct solar-to-hydrogen production.
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Affiliation(s)
- Cheng-Chu Chung
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Han Yeh
- Department of Electrophysics, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Po-Hsien Wu
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Cheng-Chieh Lin
- International Graduate Program of Molecular Science and Technology, National Taiwan University (NTU-MST), Taipei 10617, Taiwan
- Molecular Science and Technology Program, Taiwan International Graduate Program (TIGP), Academia Sinica, Taipei 11529, Taiwan
| | - Chia-Shuo Li
- Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan
| | - Tien-Tien Yeh
- Department of Electrophysics, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Yi Chou
- Department of Electrophysics, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Chuan-Yu Wei
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Cheng-Yen Wen
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
- International Graduate Program of Molecular Science and Technology, National Taiwan University (NTU-MST), Taipei 10617, Taiwan
| | - Yi-Chia Chou
- Department of Electrophysics, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Chih-Wei Luo
- Department of Electrophysics, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Chih-I Wu
- Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan
| | - Ming-Yang Li
- Corporate Research, Taiwan Semiconductor Manufacturing Company (TSMC), Hsinchu 30075, Taiwan
| | - Lain-Jong Li
- Corporate Research, Taiwan Semiconductor Manufacturing Company (TSMC), Hsinchu 30075, Taiwan
| | - Wen-Hao Chang
- Department of Electrophysics, National Chiao Tung University, Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science (CEFMS), National Chiao Tung University, Hsinchu 30010, Taiwan
- Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
| | - Chun-Wei Chen
- Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
- International Graduate Program of Molecular Science and Technology, National Taiwan University (NTU-MST), Taipei 10617, Taiwan
- Center of Atomic Initiative for New Materials (AI-MAT), National Taiwan University (NTU), Taipei 10617, Taiwan
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31
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Ma Y, Shao X, Li J, Dong B, Hu Z, Zhou Q, Xu H, Zhao X, Fang H, Li X, Li Z, Wu J, Zhao M, Pennycook SJ, Sow CH, Lee C, Zhong YL, Lu J, Ding M, Wang K, Li Y, Lu J. Electrochemically Exfoliated Platinum Dichalcogenide Atomic Layers for High-Performance Air-Stable Infrared Photodetectors. ACS APPLIED MATERIALS & INTERFACES 2021; 13:8518-8527. [PMID: 33569955 DOI: 10.1021/acsami.0c20535] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Platinum dichalcogenide (PtX2), an emergent group-10 transition metal dichalcogenide (TMD) has shown great potential in infrared photonic and optoelectronic applications due to its layer-dependent electronic structure with potentially suitable bandgap. However, a scalable synthesis of PtSe2 and PtTe2 atomic layers with controlled thickness still represents a major challenge in this field because of the strong interlayer interactions. Herein, we develop a facile cathodic exfoliation approach for the synthesis of solution-processable high-quality PtSe2 and PtTe2 atomic layers for high-performance infrared (IR) photodetection. As-exfoliated PtSe2 and PtTe2 bilayer exhibit an excellent photoresponsivity of 72 and 1620 mA W-1 at zero gate voltage under a 1540 nm laser illumination, respectively, approximately several orders of magnitude higher than that of the majority of IR photodetectors based on graphene, TMDs, and black phosphorus. In addition, our PtSe2 and PtTe2 bilayer device also shows a decent specific detectivity of beyond 109 Jones with remarkable air-stability (>several months), outperforming the mechanically exfoliated counterparts under the laser illumination with a similar wavelength. Moreover, a high yield of PtSe2 and PtTe2 atomic layers dispersed in solution also allows for a facile fabrication of air-stable wafer-scale IR photodetector. This work demonstrates a new route for the synthesis of solution-processable layered materials with the narrow bandgap for the infrared optoelectronic applications.
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Affiliation(s)
- Yaping Ma
- SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Xiji Shao
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jing Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 2 Science Drive 3, Singapore 117546, Singapore
| | - Bowei Dong
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117576, Singapore
| | - Zhenliang Hu
- Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117551, Singapore
| | - Qiulan Zhou
- Key Laboratory of Mesoscopic Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Haomin Xu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Xiaoxu Zhao
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Hanyan Fang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Xinzhe Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Zejun Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Jing Wu
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 2 Science Drive 3, Singapore 117546, Singapore
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Sigapore 138634, Singapore
| | - Meng Zhao
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Sigapore 138634, Singapore
| | - Stephen John Pennycook
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Chorng Haur Sow
- Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117551, Singapore
| | - Chengkuo Lee
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117576, Singapore
| | - Yu Lin Zhong
- Centre for Clean Environment and Energy, School of Environment and Science, Griffith University, Gold Coast, Queensland 4222, Australia
| | - Junpeng Lu
- School of Physics, Southeast University, Nanjing 211189, China
| | - Mengning Ding
- Key Laboratory of Mesoscopic Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Kedong Wang
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ying Li
- SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Jiong Lu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 2 Science Drive 3, Singapore 117546, Singapore
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Chan L, Chen X, Gao P, Xie J, Zhang Z, Zhao J, Chen T. Coordination-Driven Enhancement of Radiosensitization by Black Phosphorus via Regulating Tumor Metabolism. ACS NANO 2021; 15:3047-3060. [PMID: 33507069 DOI: 10.1021/acsnano.0c09454] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Coordination-driven surface modification is an effective strategy to achieve nanosystem functionalization and improved physicochemical performance. Black phosphorus (BP)-based nanomaterials demonstrate great potential in cancer therapy, but their poor stability, low X-ray mass attenuation coefficient, and nonselectivity limit the application in radiotherapy. Herein, we used unsaturated iridium complex to coordinate with BP nanosheets to synthesize a two-dimensional layered nanosystem (RGD-Ir@BP) with higher biostability. Ir complex improves the photoelectric properties and photoinduced charge carrier dynamics of BP, hence Ir@BP generated more singlet oxygen after X-ray irradiation. In in vivo experiments, with X-ray irradiation, RGD-Ir@BP effectively inhibited nasopharyngeal carcinoma tumor growth but with minor side effects. Additionally, based on untargeted metabolomics analysis, the combined treatment specifically down-regulated the tumor proliferative mark of prostaglandin E2 in cancer cells. In general, this study provides a design strategy of high-performance coordination-driven BP-based nanosensitizer in cancer radiotherapy.
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Affiliation(s)
- Leung Chan
- Department of Oncology, The First Affiliated Hospital, and Department of Chemistry, Jinan University, Guangzhou 510632, P. R. China
| | - Xiaodan Chen
- Department of Oncology, The First Affiliated Hospital, and Department of Chemistry, Jinan University, Guangzhou 510632, P. R. China
| | - Pan Gao
- Department of Oncology, The First Affiliated Hospital, and Department of Chemistry, Jinan University, Guangzhou 510632, P. R. China
| | - Jun Xie
- Department of Oncology, The First Affiliated Hospital, and Department of Chemistry, Jinan University, Guangzhou 510632, P. R. China
| | - Zhongyang Zhang
- Department of Oncology, The First Affiliated Hospital, and Department of Chemistry, Jinan University, Guangzhou 510632, P. R. China
| | - Jianfu Zhao
- Department of Oncology, The First Affiliated Hospital, and Department of Chemistry, Jinan University, Guangzhou 510632, P. R. China
| | - Tianfeng Chen
- Department of Oncology, The First Affiliated Hospital, and Department of Chemistry, Jinan University, Guangzhou 510632, P. R. China
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Das T, Yang E, Seo JE, Kim JH, Park E, Kim M, Seo D, Kwak JY, Chang J. Doping-Free All PtSe 2 Transistor via Thickness-Modulated Phase Transition. ACS APPLIED MATERIALS & INTERFACES 2021; 13:1861-1871. [PMID: 33393295 DOI: 10.1021/acsami.0c17810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Achieving a high-quality metal contact on two-dimensional (2D) semiconductors still remains a major challenge due to the strong Fermi level pinning and the absence of an effective doping method. Here, we demonstrate high performance "all-PtSe2" field-effect transistors (FETs) completely free from those issues, enabled by the vertical integration of a metallic thick PtSe2 source/drain onto the semiconducting ultrathin PtSe2 channel. Owing to its inherent thickness-dependent semiconductor-to-metal phase transition, the transferred metallic PtSe2 transforms the underlying semiconducting PtSe2 into metal at the junction. Therefore, a fully metallized source/drain and semiconducting channel could be realized within the same PtSe2 platform. The ultrathin PtSe2 FETs with PtSe2 vdW contact exhibits excellent gate tunability, superior mobility, and high ON current accompanied by one order lower contact resistance compared to conventional Ti/Au contact FETs. Our work provides a new device paradigm with a low resistance PtSe2 vdW contact which can overcome a fundamental bottleneck in 2D nanoelectronics.
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Affiliation(s)
- Tanmoy Das
- Department of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Eunyeong Yang
- Department of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Jae Eun Seo
- Department of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Jeong Hyeon Kim
- Department of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Eunpyo Park
- Center for Neuromorphic Engineering, Korea Institute of Science and Technology (KIST), Seoul 02792, South Korea
| | - Minkyung Kim
- Center for Neuromorphic Engineering, Korea Institute of Science and Technology (KIST), Seoul 02792, South Korea
| | - Dongwook Seo
- Department of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
| | - Joon Young Kwak
- Center for Neuromorphic Engineering, Korea Institute of Science and Technology (KIST), Seoul 02792, South Korea
| | - Jiwon Chang
- Department of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
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Wang G, Wang Z, McEvoy N, Fan P, Blau WJ. Layered PtSe 2 for Sensing, Photonic, and (Opto-)Electronic Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2004070. [PMID: 33225525 DOI: 10.1002/adma.202004070] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/17/2020] [Indexed: 06/11/2023]
Abstract
Since the first experimental discovery of graphene 16 years ago, many other 2D layered nanomaterials have been reported. However, the majority of 2D nanostructures suffer from relatively complicated fabrication processes that have bottlenecked their development and their uptake by industry for practical applications. Here, the recent progress in sensing, photonic, and (opto-)electronic applications of PtSe2 , a 2D layered material that is likely to be used in industries benefiting from its high air-stability and semiconductor-technology-compatible fabrication methods, is reviewed. The advantages and disadvantages of a range of synthesis methods for PtSe2 are initially compared, followed by a discussion of its outstanding properties, and industrial and commercial advantages. Research focused on the broadband nonlinear photonic properties of PtSe2 , as well as reports of its use as a saturable absorber in ultrafast lasers, are then reviewed. Additionally, the advances that have been achieved in a range of PtSe2 -based field-effect transistors, photodetectors, and sensors are summarized. Finally, a conclusion on these results along with the outlook for the future is presented.
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Affiliation(s)
- Gaozhong Wang
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
- School of Physics and AMBER, Trinity College Dublin, Dublin 2, Ireland
| | - Zhongzheng Wang
- School of Information Engineering, Lingnan Normal University, Guangdong, 524048, China
| | - Niall McEvoy
- School of Chemistry and AMBER, Trinity College Dublin, Dublin 2, Ireland
| | - Ping Fan
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Werner J Blau
- School of Physics and AMBER, Trinity College Dublin, Dublin 2, Ireland
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35
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Abstract
Sulfur vacancy dominant hysteresis in MoS2 transistors is observed. By decorating with Pt, the hysteresis behavior could switch from sulfur vacancy dominant to interfacial dominant, thereby realizing a hysteresis-reversible MoS2 transistor.
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Affiliation(s)
- Banglin Cao
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Zegao Wang
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Xuya Xiong
- Interdisciplinary Nanoscience Center
- Aarhus University
- Aarhus 8000
- Denmark
| | - Libin Gao
- Colloge of Electronic Science and Engineering
- University of Electronic Science and Technology of China
- Chengdu-610054
- China
| | - Jiheng Li
- State Key Laboratory for Advanced Metals & Materials
- University of Science & Technology Beijing
- Beijing
- China
| | - Mingdong Dong
- Interdisciplinary Nanoscience Center
- Aarhus University
- Aarhus 8000
- Denmark
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Yu P, Zeng Q, Zhu C, Zhou L, Zhao W, Tong J, Liu Z, Yang G. Ternary Ta 2 PdS 6 Atomic Layers for an Ultrahigh Broadband Photoresponsive Phototransistor. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005607. [PMID: 33251704 DOI: 10.1002/adma.202005607] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/13/2020] [Indexed: 06/12/2023]
Abstract
2D noble-transition-metal chalcogenides (NTMCs) are emerging as a promising class of optoelectronic materials due to ultrahigh air stability, large bandgap tunability, and high photoresponse. Here, a new set of 2D NTMC: Ta2 PdS6 atomic layers is developed, displaying the excellent comprehensive optoelectronic performance with an ultrahigh photoresponsivity of 1.42 × 106 A W-1 , detectivity of 7.1 × 1010 Jones and a high photoconductive gain of 2.7 × 106 under laser illumination at a wavelength of 633 nm with a power of 0.025 W m-2 , which is ascribed to a photogating effect via study of the device band profiles. Especially, few-layer Ta2 PdS6 exhibits a good broadband photoresponse, ranging from 450 nm in the ultraviolet region to 1450 nm in the shortwave infrared (SIR) region. Moreover, this material also delivers an impressive electronic performance with electron mobility of ≈25 cm2 V-1 s-1 , Ion /Ioff ratio of 106 , and a one-year air stability, which is better than those of most reported 2D materials. Our studies underscore Ta2 PdS6 as a promising 2D material for nano-electronic and nano-optoelectronic applications.
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Affiliation(s)
- Peng Yu
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, P.R. China
| | - Qingsheng Zeng
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Chao Zhu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Liujiang Zhou
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, P.R. China
| | - Weina Zhao
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, P.R. China
| | - Jinchao Tong
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Zheng Liu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Guowei Yang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, P.R. China
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37
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Wang H, Lu W, Hou S, Yu B, Zhou Z, Xue Y, Guo R, Wang S, Zeng K, Yan X. A 2D-SnSe film with ferroelectricity and its bio-realistic synapse application. NANOSCALE 2020; 12:21913-21922. [PMID: 33112322 DOI: 10.1039/d0nr03724a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Catering to the general trend of artificial intelligence development, simulating humans' learning and thinking behavior has become the research focus. Second-order memristors, which are more analogous to biological synapses, are the most promising devices currently used in neuromorphic/brain-like computing. However, few second-order memristors based on two-dimensional (2D) materials have been reported, and the inherent bionic physics needs to be explored. In this work, a second-order memristor based on 2D SnSe films was fabricated by the pulsed laser deposition technique. The continuously adjustable conductance of Au/SnSe/NSTO structures was achieved by gradually switching the polarization of a ferroelectric SnSe layer. The experimental results show that the bio-synaptic functions, including spike-timing-dependent plasticity, short-term plasticity and long-term plasticity, can be simulated using this two-terminal devices. Moreover, stimulus pulses with nanosecond pulse duration were applied to the device to emulate rapid learning and long-term memory in the human brain. The observed memristive behavior is mainly attributed to the modulation of the width of the depletion layer and barrier height is affected, at the SnSe/NSTO interface, by the reversal of ferroelectric polarization of SnSe materials. The device energy consumption is as low as 66 fJ, being expected to be applied to miniaturized, high-density, low-power neuromorphic computing.
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Affiliation(s)
- Hong Wang
- Key Laboratory of Optoelectronic Information Materials of Hebei Province, Key Laboratory of Brain-Like Neuromorphic Devices and Systems of Hebei Province, Hebei University, Baoding 071002, China.
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38
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Wang Y, Wu P, Wang Z, Luo M, Zhong F, Ge X, Zhang K, Peng M, Ye Y, Li Q, Ge H, Ye J, He T, Chen Y, Xu T, Yu C, Wang Y, Hu Z, Zhou X, Shan C, Long M, Wang P, Zhou P, Hu W. Air-Stable Low-Symmetry Narrow-Bandgap 2D Sulfide Niobium for Polarization Photodetection. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2005037. [PMID: 32985021 DOI: 10.1002/adma.202005037] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/10/2020] [Indexed: 06/11/2023]
Abstract
Low-symmetry 2D materials with unique anisotropic optical and optoelectronic characteristics have attracted a lot of interest in fundamental research and manufacturing of novel optoelectronic devices. Exploring new and low-symmetry narrow-bandgap 2D materials will be rewarding for the development of nanoelectronics and nano-optoelectronics. Herein, sulfide niobium (NbS3 ), a novel transition metal trichalcogenide semiconductor with low-symmetry structure, is introduced into a narrowband 2D material with strong anisotropic physical properties both experimentally and theoretically. The indirect bandgap of NbS3 with highly anisotropic band structures slowly decreases from 0.42 eV (monolayer) to 0.26 eV (bulk). Moreover, NbS3 Schottky photodetectors have excellent photoelectric performance, which enables fast photoresponse (11.6 µs), low specific noise current (4.6 × 10-25 A2 Hz-1 ), photoelectrical dichroic ratio (1.84) and high-quality reflective polarization imaging (637 nm and 830 nm). A room-temperature specific detectivity exceeding 107 Jones can be obtained at the wavelength of 3 µm. These excellent unique characteristics will make low-symmetry narrow-bandgap 2D materials become highly competitive candidates for future anisotropic optical investigations and mid-infrared optoelectronic applications.
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Affiliation(s)
- Yang Wang
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, 200433, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Peisong Wu
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhen Wang
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Man Luo
- Jiangsu Key Laboratory of ASIC Design, Nantong University, Nantong, Jiangsu, 226019, China
| | - Fang Zhong
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xun Ge
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
| | - Kun Zhang
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Meng Peng
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
| | - Yan Ye
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China
| | - Qing Li
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
| | - Haonan Ge
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jiafu Ye
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ting He
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yunfeng Chen
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Tengfei Xu
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
- Jiangsu Key Laboratory of ASIC Design, Nantong University, Nantong, Jiangsu, 226019, China
| | - Chenhui Yu
- Jiangsu Key Laboratory of ASIC Design, Nantong University, Nantong, Jiangsu, 226019, China
| | - Yueming Wang
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhigao Hu
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China
| | - Xiaohao Zhou
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chongxin Shan
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Engineering, Zhengzhou University, Zhengzhou, 450001, China
| | - Mingsheng Long
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
| | - Peng Wang
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Peng Zhou
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, 200433, China
| | - Weida Hu
- Key Laboratory of Space Active Opto-Electronics Technology and State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
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Wei C, Chi H, Jiang S, Zheng L, Zhang H, Liu Y. Long-term stable platinum diselenide for nanosecond pulse generation in a 3-µm mid-infrared fiber laser. OPTICS EXPRESS 2020; 28:33758-33766. [PMID: 33115035 DOI: 10.1364/oe.410110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 10/19/2020] [Indexed: 06/11/2023]
Abstract
In this paper, we fabricate the bulk-like multilayer platinum diselenide (PtSe2) and employ it as saturable absorber (SA) for a passively Q-switched fiber laser operating at 2865 nm for the first time, to the best of our knowledge. The nonlinear optical measurements of the bulk-like multilayer PtSe2 reveal efficient saturable absorption property at around 3 µm showing a modulation depth of 8.54% and a saturation intensity of 0.074 GW/cm2. By introducing the bulk-like PtSe2-SA into the Ho3+/Pr3+ co-doped ZBLAN fiber laser, stable Q-switched pulses with a duration as short as 620 ns are achieved at the pulse repetition rate of 238.1 kHz. The maximum average power is 93 mW, corresponding to a peak power of 0.63 W. The excellent long-term stability of the PtSe2-SA was also verified utilizing the same experimental setup after 40 days of ambient storage of the PtSe2 sample. The results not only validate the excellent nonlinear optical performance of PtSe2, but also indicate that the bulk-like PtSe2 is a promising long-term stable SA material under ambient conditions for nanosecond pulse generation in the 3-µm mid-infrared spectral region.
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Jiang K, Cui A, Shao S, Feng J, Dong H, Chen B, Wang Y, Hu Z, Chu J. New Pressure Stabilization Structure in Two-Dimensional PtSe 2. J Phys Chem Lett 2020; 11:7342-7349. [PMID: 32787291 DOI: 10.1021/acs.jpclett.0c01813] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The frequency shifts and lattice dynamics to unveil the vibrational properties of platinum diselenide (PtSe2) are investigated using pressure-dependent polarized Raman scattering at room temperature up to 25 GPa. The two phonon modes Eg and A1g display similar hardening trends; both the Raman peak positions and full widths at half-maximum have distinct mutation phenomena under high pressure. Especially, the split Eg mode at 4.3 GPa confirms the change of the lattice symmetry. With the aid of the first-principles calculations, a new pressure stabilization structure C2/m of PtSe2 has been found to be in good agreement with experiments. The band structures calculations reveal that the new phase is a novel type-I Dirac semimetal. The results demonstrate that the pressure-dependent Raman spectra combined with theoretical predictions may open a new window for searching and controlling the phase structure and Dirac cones of two-dimensional materials.
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Affiliation(s)
- Kai Jiang
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | - Anyang Cui
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | - Sen Shao
- State Key Laboratory of Superhard Materials & International Center for Computational Method and Software, Jilin University, Changchun 130012, China
| | - Jiajia Feng
- Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
| | - Hongliang Dong
- Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
| | - Bin Chen
- Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
| | - Yanchao Wang
- State Key Laboratory of Superhard Materials & International Center for Computational Method and Software, Jilin University, Changchun 130012, China
| | - Zhigao Hu
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
- Shanghai Institute of Intelligent Electronics & Systems, Fudan University, Shanghai 200433, China
| | - Junhao Chu
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
- Shanghai Institute of Intelligent Electronics & Systems, Fudan University, Shanghai 200433, China
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Gong Y, Lin Z, Chen YX, Khan Q, Wang C, Zhang B, Nie G, Xie N, Li D. Two-Dimensional Platinum Diselenide: Synthesis, Emerging Applications, and Future Challenges. NANO-MICRO LETTERS 2020; 12:174. [PMID: 34138169 PMCID: PMC7770737 DOI: 10.1007/s40820-020-00515-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 08/04/2020] [Indexed: 05/25/2023]
Abstract
In recent years, emerging two-dimensional (2D) platinum diselenide (PtSe2) has quickly attracted the attention of the research community due to its novel physical and chemical properties. For the past few years, increasing research achievements on 2D PtSe2 have been reported toward the fundamental science and various potential applications of PtSe2. In this review, the properties and structure characteristics of 2D PtSe2 are discussed at first. Then, the recent advances in synthesis of PtSe2 as well as their applications are reviewed. At last, potential perspectives in exploring the application of 2D PtSe2 are reviewed.
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Affiliation(s)
- Youning Gong
- Institute of Microscale Optoelectronics, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Zhitao Lin
- Faculty of Information Technology, Macau University of Science and Technology, Macau, 519020, People's Republic of China
| | - Yue-Xing Chen
- Institute of Microscale Optoelectronics, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Qasim Khan
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, ON, Canada
| | - Cong Wang
- Institute of Microscale Optoelectronics, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Bin Zhang
- Otolaryngology Department and Biobank of the First Affiliated Hospital, Shenzhen Second People's Hospital, Health Science Center, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Guohui Nie
- Otolaryngology Department and Biobank of the First Affiliated Hospital, Shenzhen Second People's Hospital, Health Science Center, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Ni Xie
- Otolaryngology Department and Biobank of the First Affiliated Hospital, Shenzhen Second People's Hospital, Health Science Center, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Delong Li
- Institute of Microscale Optoelectronics, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China.
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Tong Y, Bouaziz M, Oughaddou H, Enriquez H, Chaouchi K, Nicolas F, Kubsky S, Esaulov V, Bendounan A. Phase transition and thermal stability of epitaxial PtSe 2 nanolayer on Pt(111). RSC Adv 2020; 10:30934-30943. [PMID: 35516062 PMCID: PMC9056341 DOI: 10.1039/d0ra04346j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 08/14/2020] [Indexed: 01/22/2023] Open
Abstract
This work relates to direct synthesis of the two-dimensional (2D) transition metal dichalchogenide (TMD) PtSe2 using an original method based on chemical deposition during immersion of a Pt(111) surface into aqueous Na2Se solution. Annealing of the sample induces significant modifications in the structural and electronic properties of the resulting PtSe2 film. We report systematic investigations of temperature dependent phase transitions by combining synchrotron based high-resolution X-ray photoemission (XPS), low temperature scanning tunnelling microscopy (LT-STM) and low energy electron diffraction (LEED). From the STM images, a phase transition from TMD 2H-PtSe2 to Pt2Se alloy monolayer structure is observed, in agreement with the LEED patterns showing a transition from (4 × 4) to (√3 × √3)R30° and then to a (2 × 2) superstructure. This progressive evolution of the surface reconstruction has been monitored by XPS through systematic de-convolution of the Pt4f and Se3d core level peaks at different temperatures. The present work provides an alternative method for the large scale fabrication of 2D transition metal dichalchogenide films. LEED, STM and XPS techniques were used to systematically study a temperature-dependent phase transition on a PtSe2 film grown on the surface of Pt(111) by a chemical deposition method.![]()
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Affiliation(s)
- Yongfeng Tong
- Synchrotron SOLEIL - L'Orme des Merisiers Saint-Aubin - BP 48, 91192 Gif-sur-Yvette Cedex France
| | - Meryem Bouaziz
- Synchrotron SOLEIL - L'Orme des Merisiers Saint-Aubin - BP 48, 91192 Gif-sur-Yvette Cedex France
| | - Hamid Oughaddou
- Institut des Sciences Moléculaires d'Orsay, UMR 8214, Université Paris-Sud, Université Paris-Saclay 91405 Orsay Cedex France.,Département de Physique, Université de Cergy-Pontoise 95031 Cergy-Pontoise Cedex France
| | - Hanna Enriquez
- Institut des Sciences Moléculaires d'Orsay, UMR 8214, Université Paris-Sud, Université Paris-Saclay 91405 Orsay Cedex France
| | - Karine Chaouchi
- Synchrotron SOLEIL - L'Orme des Merisiers Saint-Aubin - BP 48, 91192 Gif-sur-Yvette Cedex France
| | - François Nicolas
- Synchrotron SOLEIL - L'Orme des Merisiers Saint-Aubin - BP 48, 91192 Gif-sur-Yvette Cedex France
| | - Stefan Kubsky
- Synchrotron SOLEIL - L'Orme des Merisiers Saint-Aubin - BP 48, 91192 Gif-sur-Yvette Cedex France
| | - Vladimir Esaulov
- Institut des Sciences Moléculaires d'Orsay, UMR 8214, Université Paris-Sud, Université Paris-Saclay 91405 Orsay Cedex France
| | - Azzedine Bendounan
- Synchrotron SOLEIL - L'Orme des Merisiers Saint-Aubin - BP 48, 91192 Gif-sur-Yvette Cedex France
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44
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Xu H, Hao L, Liu H, Dong S, Wu Y, Liu Y, Cao B, Wang Z, Ling C, Li S, Xu Z, Xue Q, Yan K. Flexible SnSe Photodetectors with Ultrabroad Spectral Response up to 10.6 μm Enabled by Photobolometric Effect. ACS APPLIED MATERIALS & INTERFACES 2020; 12:35250-35258. [PMID: 32660231 DOI: 10.1021/acsami.0c09561] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A broad spectral response is highly desirable for radiation detection in modern optoelectronics; however, it still remains a great challenge. Herein, we report a novel ultrabroadband photodetector based on a high-quality tin monoselenide (SnSe) thin film, which is even capable of detecting photons with energies far below its optical band gap. The wafer-size SnSe ultrathin films are epitaxially grown on sodium chloride via the 45° in-plane rotation by employing a sputtering method. The photodetector delivers sensitive detection to ultraviolet-visible-near infrared (UV-Vis-NIR) lights in the photoconductive mode and shows an anomalous response to long-wavelength infrared at room temperature. Under the mid-infrared light of 10.6 μm, the fabricated photodetector exhibits a large photoresponsivity of 0.16 A W-1 with a fast response rate, which is ∼3 orders of magnitude higher than other results. The thermally induced carriers from the photobolometric effect are responsible for the sub-bandgap response. This mechanism is confirmed by a temperature coefficient of resistance of -2.3 to 4.4% K-1 in the film, which is comparable to that of the commercial bolometric detectors. Additionally, the flexible device transferred onto polymer templates further displays high mechanical durability and stability over 200 bending cycles, indicating great potential toward developing wearable optoelectronic devices.
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Affiliation(s)
- Hanyang Xu
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Lanzhong Hao
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Hui Liu
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Shichang Dong
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Yupeng Wu
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Yunjie Liu
- College of Science, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Banglin Cao
- College of Materials Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Zegao Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Cuicui Ling
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Shouxi Li
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Zhijie Xu
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Qingzhong Xue
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong 266580, P. R. China
| | - Keyou Yan
- School of Environment and Energy, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, Guangdong 510006, P. R. China
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45
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Yang E, Seo JE, Seo D, Chang J. Intrinsic limit of contact resistance in the lateral heterostructure of metallic and semiconducting PtSe 2. NANOSCALE 2020; 12:14636-14641. [PMID: 32614014 DOI: 10.1039/d0nr03001e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
High contact resistance (Rc) limits the ultimate potential of two-dimensional (2-D) materials for future devices. To resolve the Rc problem, forming metallic 1T phase MoS2 locally in the semiconducting 2H phase MoS2 has been successfully demonstrated to use the 1T phase as source/drain electrodes in field effect transistors (FETs). However, the long-term stability of the 1T phase MoS2 still remains as an issue. Recently, an unusual thickness-modulated phase transition from semiconducting to metallic has been experimentally observed in 2-D material PtSe2. Metallic multilayer PtSe2 and semiconducting monolayer PtSe2 can be used as source/drain electrodes and channel, respectively, in FETs. Here, we present a theoretical study on the intrinsic lower limit of Rc in the metallic-semiconducting PtSe2 heterostructure through density functional theory (DFT) combined with non-equilibrium Green's function (NEGF). Compared with Rc in the 1T-2H MoS2 heterostructure, the multilayer-monolayer PtSe2 heterostructure can offer much lower Rc due to the better capability of providing more transmission modes.
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Affiliation(s)
- Eunyeong Yang
- Department of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea.
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46
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Kempt R, Kuc A, Heine T. Two-Dimensional Noble-Metal Chalcogenides and Phosphochalcogenides. Angew Chem Int Ed Engl 2020; 59:9242-9254. [PMID: 32065703 PMCID: PMC7463173 DOI: 10.1002/anie.201914886] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Indexed: 11/07/2022]
Abstract
Noble-metal chalcogenides, dichalcogenides, and phosphochalcogenides are an emerging class of two-dimensional materials. Quantum confinement (number of layers) and defect engineering enables their properties to be tuned over a broad range, including metal-to-semiconductor transitions, magnetic ordering, and topological surface states. They possess various polytypes, often of similar formation energy, which can be accessed by selective synthesis approaches. They excel in mechanical, optical, and chemical sensing applications, and feature long-term air and moisture stability. In this Minireview, we summarize the recent progress in the field of noble-metal chalcogenides and phosphochalcogenides and highlight the structural complexity and its impact on applications.
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Affiliation(s)
- Roman Kempt
- Faculty of Chemistry and Food ChemistryTechnische Universität DresdenBergstrasse 6601069DresdenGermany
| | - Agnieszka Kuc
- Institute of Resource EcologyHelmholtz-Zentrum Dresden-RossendorfPermoserstrasse 1504318LeipzigGermany
| | - Thomas Heine
- Faculty of Chemistry and Food ChemistryTechnische Universität DresdenBergstrasse 6601069DresdenGermany
- Institute of Resource EcologyHelmholtz-Zentrum Dresden-RossendorfPermoserstrasse 1504318LeipzigGermany
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47
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Zhou J, Wang Z, Yang D, Qi F, Hao X, Zhang W, Chen Y. NiSe 2-anchored N, S-doped graphene/Ni foam as a free-standing bifunctional electrocatalyst for efficient water splitting. NANOSCALE 2020; 12:9866-9872. [PMID: 32347283 DOI: 10.1039/d0nr00879f] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
It is still challenging to develop non-precious free-standing bifunctional electrocatalysts with high efficiency for hydrogen and oxygen evolution reactions. Herein, for the first time, we present a novel hybrid electrocatalyst synthesized via a facile hydrothermal reaction, which is constructed from ultrafine NiSe2 nanoparticles/nanosheets homogeneously anchored on 3D graphene/nickel foam (NiSe2/3DSNG/NF). This hybrid delivers superior catalytic performances for hydrogen/oxygen evolution reactions and overall water splitting: it shows an ultra-small Tafel slope of 28.56 mV dec-1 for hydrogen evolution in acid, and a small Tafel slope of 42.77 mV dec-1 for the oxygen evolution reaction; particularly, in a two-electrode setup for water splitting, it requires an ultra-small potential of 1.59 V to obtain 10 mA cm-2 with nearly 100% faradaic efficiencies for H2 and O2. This study presents a new approach of catalyst design and fabrication to achieve highly efficient and low-cost water electrolysis.
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Affiliation(s)
- Jinhao Zhou
- School of Electronic Science and Engineering, State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China.
| | - Zegao Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China. and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus 8000, Denmark
| | - Dongxu Yang
- School of Electronic Science and Engineering, State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China.
| | - Fei Qi
- School of Electronic Science and Engineering, State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China.
| | - Xin Hao
- North Laser Research Institute Co. Ltd, Chengdu, China
| | - Wanli Zhang
- School of Electronic Science and Engineering, State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China.
| | - Yuanfu Chen
- School of Electronic Science and Engineering, State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China. and Department of Physics, School of Science, Everest Research Institute, Tibet University, Lhasa 850000, P. R. China
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48
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Gu Y, Cai H, Dong J, Yu Y, Hoffman AN, Liu C, Oyedele AD, Lin YC, Ge Z, Puretzky AA, Duscher G, Chisholm MF, Rack PD, Rouleau CM, Gai Z, Meng X, Ding F, Geohegan DB, Xiao K. Two-Dimensional Palladium Diselenide with Strong In-Plane Optical Anisotropy and High Mobility Grown by Chemical Vapor Deposition. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1906238. [PMID: 32173918 DOI: 10.1002/adma.201906238] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 12/14/2019] [Accepted: 02/18/2020] [Indexed: 05/12/2023]
Abstract
Two-dimensional (2D) palladium diselenide (PdSe2 ) has strong interlayer coupling and a puckered pentagonal structure, leading to remarkable layer-dependent electronic structures and highly anisotropic in-plane optical and electronic properties. However, the lack of high-quality, 2D PdSe2 crystals grown by bottom-up approaches limits the study of their exotic properties and practical applications. In this work, chemical vapor deposition growth of highly crystalline few-layer (≥2 layers) PdSe2 crystals on various substrates is reported. The high quality of the PdSe2 crystals is confirmed by low-frequency Raman spectroscopy, scanning transmission electron microscopy, and electrical characterization. In addition, strong in-plane optical anisotropy is demonstrated via polarized Raman spectroscopy and second-harmonic generation maps of the PdSe2 flakes. A theoretical model based on kinetic Wulff construction theory and density functional theory calculations is developed and described the observed evolution of "square-like" shaped PdSe2 crystals into rhombus due to the higher nucleation barriers for stable attachment on the (1,1) and (1,-1) edges, which results in their slower growth rates. Few-layer PdSe2 field-effect transistors reveal tunable ambipolar charge carrier conduction with an electron mobility up to ≈294 cm2 V-1 s-1 , which is comparable to that of exfoliated PdSe2 , indicating the promise of this anisotropic 2D material for electronics.
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Affiliation(s)
- Yiyi Gu
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Hui Cai
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Jichen Dong
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Yiling Yu
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Anna N Hoffman
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Chenze Liu
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Akinola D Oyedele
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
- Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee, Knoxville, TN, 37966, USA
| | - Yu-Chuan Lin
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Zhuozhi Ge
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Alexander A Puretzky
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Gerd Duscher
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Matthew F Chisholm
- Materials Sciences and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA
| | - Philip D Rack
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Christopher M Rouleau
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Zheng Gai
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Xiangmin Meng
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Feng Ding
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- Center for Multidimensional Carbon Materials, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
| | - David B Geohegan
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Kai Xiao
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
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49
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Hao L, Du Y, Wang Z, Wu Y, Xu H, Dong S, Liu H, Liu Y, Xue Q, Han Z, Yan K, Dong M. Wafer-size growth of 2D layered SnSe films for UV-Visible-NIR photodetector arrays with high responsitivity. NANOSCALE 2020; 12:7358-7365. [PMID: 32207508 DOI: 10.1039/d0nr00319k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Due to its excellent electrical and optical properties, tin selenide (SnSe), a typical candidate of two-dimensional (2D) semiconductors, has attracted great attention in the field of novel optoelectronics. However, the large-area growth of high-quality SnSe films still remains a great challenge, which limits their practical applications. Here, wafer-size SnSe ultrathin films with high uniformity and crystallization were deposited via a scalable magnetron sputtering method. The results showed that the SnSe photodetector was highly sensitive to a broad range of wavelengths in the UV-visible-NIR range, especially showing an extremely high responsivity of 277.3 A W-1 with the corresponding external quantum efficiency of 8.5 × 104% and detectivity of 7.6 × 1011 Jones. These figures of merits are among the best performances for the sputter-fabricated 2D photodetector devices. The photodetecting mechanisms based on a photogating effect induced by the trapping effect of localized defects are discussed in detail. The results indicate that the few-layered SnSe films obtained from sputtering growth have great potential in the design of high-performance photodetector arrays.
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Affiliation(s)
- Lanzhong Hao
- School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, China.
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50
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Kempt R, Kuc A, Heine T. Zweidimensionale Edelmetallchalkogenide und ‐phosphochalkogenide. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914886] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Roman Kempt
- Fakultät für Chemie und LebensmittelchemieTechnische Universität Dresden Bergstrasse 66 01069 Dresden Deutschland
| | - Agnieszka Kuc
- Institut für RessourcenökologieHelmholtz-Zentrum Dresden-Rossendorf Permoserstrasse 15 04318 Leipzig Deutschland
| | - Thomas Heine
- Fakultät für Chemie und LebensmittelchemieTechnische Universität Dresden Bergstrasse 66 01069 Dresden Deutschland
- Institut für RessourcenökologieHelmholtz-Zentrum Dresden-Rossendorf Permoserstrasse 15 04318 Leipzig Deutschland
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