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Mxakaza LF, Mashindi V, Linganiso CE, Moloto N, Tetana ZN. Evaluating the Hydrogen Evolution Reaction Activity of Colloidally Prepared PtSe 2 and PtTe 2 Catalysts in an Alkaline Medium. ChemistryOpen 2024; 13:e202400146. [PMID: 39041679 DOI: 10.1002/open.202400146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 05/13/2024] [Indexed: 07/24/2024] Open
Abstract
The hydrogen evolution reaction (HER) in alkaline electrolytes using transition metal dichalcogenides is a research area that is not tapped into. Alkaline HER (2 H 2 O + 2 e - → H 2 + O H - ${{2H}_{2}O+2{e\ }^{-}\to {H}_{2}+{OH}^{-}{\rm \ }}$ ) is harder to achieve relative to acidic HER (H + + 2 e - → H 2 ${{H}^{+}+2{e\ }^{-}\to \ {H}_{2}}$ ), this is attributed to the additional water dissociation step that occurs in basic HER to generate H+ ions. In fact, for most catalysts, their HER activity decreases tremendously when the electrolyte is changed from acidic to basic conditions. Platinum dichalcogenides, PtX2 (X=S, Se, Te), are an interesting member of transition metal dichalcogenides (TMDs) as these show an immense hybridization of the Pt d orbitals and chalcogen p orbitals because of closely correlated orbital energies. The trend in electronic properties of these materials changes drastically as the chalcogen is changed, with PtS2 reported to exhibit semi-conductor properties, PtSe2 is semi-metallic or semi-conductive, depending on the number of layers, while PtTe2 is metallic. The effect of varying the chalcogen atom on the HER activity of Pt dichalcogenides will be studied. Pt dichalcogenides have previously been prepared by direct high-temperature chalcogen deposition of Pt substrate and evaluated as electrocatalysts for HER in H2SO4. The previously employed synthesis procedures for PtX2 limit these compounds' mass production and post-synthesis treatment. In this study, we demonstrated, for the first time the preparation of PtSe2 and PtTe2 by colloidal synthesis. Colloidal synthesis offers the possibility of large-scale synthesis of materials and affords the employment of the colloids at various concentrations in ink formulation. The electrochemical HER results acquired in 1 M KOH indicate that PtTe2 has a superior HER catalytic activity to PtSe2. A potential of 108 mV for PtTe2 and 161 mV for PtSe2 is required to produce a current density of -10 mA cm-2 from these catalysts. PtTe2 has a low Tafel slope of 79 mVdec-1, indicating faster HER kinetics on PtTe2. Nonetheless, the stability of these catalysts in an alkaline medium needs to be improved to render them excellent HER electrocatalysts.
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Affiliation(s)
- Lineo F Mxakaza
- Molecular Science Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, Wits, 2050, South Africa
- DSI/NRF Centre of Excellence in Strong Materials, University of the Witwatersrand, Private Bag 3, Wits, 2050, South Africa
| | - Victor Mashindi
- Molecular Science Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, Wits, 2050, South Africa
| | - Cebisa E Linganiso
- Molecular Science Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, Wits, 2050, South Africa
- DSI/NRF Centre of Excellence in Strong Materials, University of the Witwatersrand, Private Bag 3, Wits, 2050, South Africa
| | - Nosipho Moloto
- Molecular Science Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, Wits, 2050, South Africa
| | - Zikhona N Tetana
- Molecular Science Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, Wits, 2050, South Africa
- DSI/NRF Centre of Excellence in Strong Materials, University of the Witwatersrand, Private Bag 3, Wits, 2050, South Africa
- Institute for Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of South Africa, Florida, 1709, Johannesburg, South Africa
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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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Lee W, Kang M, Choi JW, Kim S, Park N, Kim G, Kim Y, Saitoh E, Yoon Y, Lee S. Abnormal Seebeck Effect in Vertically Stacked 2D/2D PtSe 2 /PtSe 2 Homostructure. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2203455. [PMID: 36354191 PMCID: PMC9799017 DOI: 10.1002/advs.202203455] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 09/08/2022] [Indexed: 06/16/2023]
Abstract
When a thermoelectric (TE) material is deposited with a secondary TE material, the total Seebeck coefficient of the stacked layer is generally represented by a parallel conductor model. Accordingly, when TE material layers of the same thickness are stacked vertically, the total Seebeck coefficient in the transverse direction may change in a single layer. Here, an abnormal Seebeck effect in a stacked two-dimensional (2D) PtSe2 /PtSe2 homostructure film, i.e., an extra in-plane Seebeck voltage is produced by wet-transfer stacking at the interface between the PtSe2 layers under a transverse temperature gradient is reported. This abnormal Seebeck effect is referred to as the interfacial Seebeck effect in stacked PtSe2 /PtSe2 homostructures. This effect is attributed to the carrier-interface interaction, and has independent characteristics in relation to carrier concentration. It is confirmed that the in-plane Seebeck coefficient increases as the number of stacked PtSe2 layers increase and observed a high Seebeck coefficient exceeding ≈188 µV K-1 at 300 K in a four-layer-stacked PtSe2 /PtSe2 homostructure.
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Affiliation(s)
- Won‐Yong Lee
- Department of PhysicsCenter for Berry Curvature based New PhenomenaChung‐Ang UniversitySeoul06974Republic of Korea
- Division of Solid State ElectronicsDepartment of Electrical EngineeringUppsala UniversityUppsala75103Sweden
| | - Min‐Sung Kang
- Department of PhysicsCenter for Berry Curvature based New PhenomenaChung‐Ang UniversitySeoul06974Republic of Korea
| | - Jae Won Choi
- Department of PhysicsCenter for Berry Curvature based New PhenomenaChung‐Ang UniversitySeoul06974Republic of Korea
| | - Si‐Hoo Kim
- Department of PhysicsCenter for Berry Curvature based New PhenomenaChung‐Ang UniversitySeoul06974Republic of Korea
| | - No‐Won Park
- Department of PhysicsCenter for Berry Curvature based New PhenomenaChung‐Ang UniversitySeoul06974Republic of Korea
| | - Gil‐Sung Kim
- Department of PhysicsCenter for Berry Curvature based New PhenomenaChung‐Ang UniversitySeoul06974Republic of Korea
| | - Yun‐Ho Kim
- Department of PhysicsCenter for Berry Curvature based New PhenomenaChung‐Ang UniversitySeoul06974Republic of Korea
| | - Eiji Saitoh
- Department of Applied PhysicsThe University of TokyoTokyo113–8656Japan
| | - Young‐Gui Yoon
- Department of PhysicsCenter for Berry Curvature based New PhenomenaChung‐Ang UniversitySeoul06974Republic of Korea
| | - Sang‐Kwon Lee
- Department of PhysicsCenter for Berry Curvature based New PhenomenaChung‐Ang UniversitySeoul06974Republic of Korea
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4
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Lee WY, Kang MS, Kim GS, Choi JW, Park NW, Sim Y, Kim YH, Seong MJ, Yoon YG, Saitoh E, Lee SK. Interface-Induced Seebeck Effect in PtSe 2/PtSe 2 van der Waals Homostructures. ACS NANO 2022; 16:3404-3416. [PMID: 35133142 DOI: 10.1021/acsnano.2c00359] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The Seebeck effect refers to the production of an electric voltage when different temperatures are applied on a conductor, and the corresponding voltage-production efficiency is represented by the Seebeck coefficient. We report a Seebeck effect: thermal generation of driving voltage from the heat flowing in a thin PtSe2/PtSe2 van der Waals homostructure at the interface. We refer to the effect as the interface-induced Seebeck effect. By exploiting this effect by directly attaching multilayered PtSe2 over high-resistance PtSe2 thin films as a hybridized single structure, we obtained the highly challenging in-plane Seebeck coefficient of the PtSe2 films that exhibit extremely high resistances. This direct attachment further enhanced the in-plane thermal Seebeck coefficients of the PtSe2/PtSe2 van der Waals homostructure on sapphire substrates. Consequently, we successfully enhanced the in-plane Seebeck coefficients for the PtSe2 (10 nm)/PtSe2 (2 nm) homostructure approximately 42% compared to that of a pure PtSe2 (10 nm) layer at 300 K. These findings represent a significant achievement in understanding the interface-induced Seebeck effect and provide an effective strategy for promising large-area thermoelectric energy harvesting devices using two-dimensional transition metal dichalcogenide materials, which are ideal thermoelectric platforms with high figures of merit.
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Affiliation(s)
- Won-Yong Lee
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Min-Sung Kang
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Gil-Sung Kim
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Jae Won Choi
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - No-Won Park
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Yumin Sim
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Yun-Ho Kim
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Maeng-Je Seong
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Young-Gui Yoon
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Eiji Saitoh
- Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan
| | - Sang-Kwon Lee
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
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5
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Ramli MA, Mawarnis ER, Umar MIA, Rahman MYA, Fauzia V, Nurdin M, Umar AA. Charge transfer uplift in dye-sensitized solar cells using fibrous nanocrystals of platinum-based bimetallic counter electrodes. SURFACES AND INTERFACES 2021; 26:101311. [DOI: 10.1016/j.surfin.2021.101311] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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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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7
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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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8
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Zhang W, Ji W. Two-dimensional van der Waals heterostructure CdO/PtSe 2: promising visible light photocatalyst for overall water splitting. Phys Chem Chem Phys 2020; 22:24662-24668. [PMID: 33099592 DOI: 10.1039/d0cp03564e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Due to the gradual depletion of fossil fuels and the serious environmental pollution, hydrogen generation by photocatalytic water splitting has been considered as an alternative strategy for clean energy. Herein, using hybrid density functional calculations, we systematically study the structural, electronic and optical properties of van der Waals heterostructure CdO/PtSe2 with different stacking patterns. The heterostructure is found to be dynamically stable, and has type-II band alignment with a large built-in electric field, which is favorable for the efficient spatial separation of photogenerated charge carriers. By revealing the intrinsic interface dipoles dependent photocatalytic mechanisms, we find the band edges of all patterns straddle the water redox levels despite the AB-1 pattern having a bandgap less than 1.23 eV. Moreover, the heterostructure shows globally improved optical absorptions with a large absorption coefficient (105 cm-1) compared to the single layers, demonstrating the enhanced photocatalytic activity. Comparing with widely discussed bilayer systems like graphene/C3N4 and MoS2/C3N4, the CdO/PtSe2 simultaneously has several advantages or peculiarities such as the more favorable absorption of visible light, therefore CdO/PtSe2 is a promising candidate and a unique system for photocatalytic water splitting.
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Affiliation(s)
- Wei Zhang
- Physicochemical Group of College of Criminal Science and Technology & Forensic Center of Public Security of Bureau of National Forestry Bureau, Nanjing Forest Police College, Nanjing 210023, China.
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9
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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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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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Abd Malek NA, Alias N, Md Saad SK, Abdullah NA, Zhang X, Li X, Shi Z, Rosli MM, Tengku Abd Aziz TH, Umar AA, Zhan Y. Ultra-thin MoS2 nanosheet for electron transport layer of perovskite solar cells. OPTICAL MATERIALS 2020; 104:109933. [DOI: 10.1016/j.optmat.2020.109933] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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12
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Pawar MS, Late DJ. Temperature-dependent Raman spectroscopy and sensor applications of PtSe 2 nanosheets synthesized by wet chemistry. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:467-474. [PMID: 30873317 PMCID: PMC6404413 DOI: 10.3762/bjnano.10.46] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 01/16/2019] [Indexed: 05/24/2023]
Abstract
We report on a wet chemistry method used to grow PtSe2 nanosheets followed by thermal annealing. The SEM and TEM analysis confirms the formation of PtSe2 nanosheets. Furthermore, XRD, Raman, XPS and SAED patterns were used to analyze the crystal structure and to confirm the formation of the PtSe2 phase. The temperature-dependent Raman spectroscopy investigations were carried out on PtSe2 nanosheets deposited on Si substrates in the temperature range 100-506 K. The shifts in Raman active Eg and A1g modes as a function of temperature were monitored. The temperature coefficient for both modes was calculated and was found to match well with the reported 2D transition metal dichalcogenides. A PtSe2 nanosheet-based sensor device was tested for its applicability as a humidity sensor and photodetector. The humidity sensor based on PtSe2 nanosheets showed an excellent recovery time of ≈5 s, indicating the great potential of PtSe2 for future sensor devices.
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Affiliation(s)
- Mahendra S Pawar
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Dattatray J Late
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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13
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Mawarnis ER, Ali Umar A, Tomitori M, Balouch A, Nurdin M, Muzakkar MZ, Oyama M. Hierarchical Bimetallic AgPt Nanoferns as High-Performance Catalysts for Selective Acetone Hydrogenation to Isopropanol. ACS OMEGA 2018; 3:11526-11536. [PMID: 31459253 PMCID: PMC6645377 DOI: 10.1021/acsomega.8b01268] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 09/06/2018] [Indexed: 06/10/2023]
Abstract
A combinative effect of two or more individual material properties, such as lattice parameters and chemical properties, has been well-known to generate novel nanomaterials with special crystal growth behavior and physico-chemical performance. This paper reports unusually high catalytic performance of AgPt nanoferns in the hydrogenation reaction of acetone conversion to isopropanol, which is several orders higher compared to the performance shown by pristine Pt nanocatalysts or other metals and metal-metal oxide hybrid catalyst systems. It has been demonstrated that the combinative effect during the bimetallisation of Ag and Pt produced nanostructures with a highly anisotropic morphology, i.e., hierarchical nanofern structures, which provide high-density active sites on the catalyst surface for an efficient catalytic reaction. The extent of the effect of structural growth on the catalytic performance of hierarchical AgPt nanoferns is discussed.
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Affiliation(s)
- Elvy Rahmi Mawarnis
- Department
of Chemistry Education, Faculty of Tarbiyah, Institut Agama Islam Negeri (IAIN), 27213 Batusangkar, West Sumatera, Indonesia
| | - Akrajas Ali Umar
- Institute
of Microengineering and Nanoelectronics, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
| | - Masahiko Tomitori
- School
of Materials Science, Japan Advanced Institute
of Science and Technology, 1-1 Asahidai, 923-1292 Nomi, Ishikawa, Japan
| | - Aamna Balouch
- National
Centre of Excellence in Analytical Chemistry, University of Sindh, 76080 Jamshoro, Pakistan
| | - Muhammad Nurdin
- Department
of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, 93232 Kendari, Sulawesi Tenggara, Indonesia
| | - Muhammad Zakir Muzakkar
- Department
of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, 93232 Kendari, Sulawesi Tenggara, Indonesia
| | - Munetaka Oyama
- Nanomaterials
Chemistry Laboratory, Department of Materials Chemistry, Graduate
School of Engineering, Kyoto University, Nishikyo-ku, 615-8520 Kyoto, Japan
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14
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Su TY, Medina H, Chen YZ, Wang SW, Lee SS, Shih YC, Chen CW, Kuo HC, Chuang FC, Chueh YL. Phase-Engineered PtSe 2 -Layered Films by a Plasma-Assisted Selenization Process toward All PtSe 2 -Based Field Effect Transistor to Highly Sensitive, Flexible, and Wide-Spectrum Photoresponse Photodetectors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1800032. [PMID: 29635730 DOI: 10.1002/smll.201800032] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 01/28/2018] [Indexed: 05/25/2023]
Abstract
The formation of PtSe2 -layered films is reported in a large area by the direct plasma-assisted selenization of Pt films at a low temperature, where temperatures, as low as 100 °C at the applied plasma power of 400 W can be achieved. As the thickness of the Pt film exceeds 5 nm, the PtSe2 -layered film (five monolayers) exhibits a metallic behavior. A clear p-type semiconducting behavior of the PtSe2 -layered film (≈trilayers) is observed with the average field effective mobility of 0.7 cm2 V-1 s-1 from back-gated transistor measurements as the thickness of the Pt film reaches below 2.5 nm. A full PtSe2 field effect transistor is demonstrated where the thinner PtSe2 , exhibiting a semiconducting behavior, is used as the channel material, and the thicker PtSe2 , exhibiting a metallic behavior, is used as an electrode, yielding an ohmic contact. Furthermore, photodetectors using a few PtSe2 -layered films as an adsorption layer synthesized at the low temperature on a flexible substrate exhibit a wide range of absorption and photoresponse with the highest photocurrent of 9 µA under the laser wavelength of 408 nm. In addition, the device can maintain a high photoresponse under a large bending stress and 1000 bending cycles.
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Affiliation(s)
- Teng-Yu Su
- Department of Material Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Henry Medina
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way, Innovis, Singapore, 138634, Singapore
| | - Yu-Ze Chen
- Department of Material Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Sheng-Wen Wang
- Department of Photonics & Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Shao-Shin Lee
- Department of Material Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Yu-Chuan Shih
- Department of Material Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Chia-Wei Chen
- Department of Material Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Hao-Chung Kuo
- Department of Photonics & Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Feng-Chuan Chuang
- Department of Physics, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
| | - Yu-Lun Chueh
- Department of Material Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
- Department of Physics, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
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15
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Yim C, McEvoy N, Riazimehr S, Schneider DS, Gity F, Monaghan S, Hurley PK, Lemme MC, Duesberg GS. Wide Spectral Photoresponse of Layered Platinum Diselenide-Based Photodiodes. NANO LETTERS 2018; 18:1794-1800. [PMID: 29461845 DOI: 10.1021/acs.nanolett.7b05000] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Platinum diselenide (PtSe2) is a group-10 transition metal dichalcogenide (TMD) that has unique electronic properties, in particular a semimetal-to-semiconductor transition when going from bulk to monolayer form. We report on vertical hybrid Schottky barrier diodes (SBDs) of two-dimensional (2D) PtSe2 thin films on crystalline n-type silicon. The diodes have been fabricated by transferring large-scale layered PtSe2 films, synthesized by thermally assisted conversion of predeposited Pt films at back-end-of-the-line CMOS compatible temperatures, onto SiO2/Si substrates. The diodes exhibit obvious rectifying behavior with a photoresponse under illumination. Spectral response analysis reveals a maximum responsivity of 490 mA/W at photon energies above the Si bandgap and relatively weak responsivity, in the range of 0.1-1.5 mA/W, at photon energies below the Si bandgap. In particular, the photoresponsivity of PtSe2 in infrared allows PtSe2 to be utilized as an absorber of infrared light with tunable sensitivity. The results of our study indicate that PtSe2 is a promising option for the development of infrared absorbers and detectors for optoelectronics applications with low-temperature processing conditions.
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Affiliation(s)
- Chanyoung Yim
- Department of Electrical Engineering and Computer Science , University of Siegen , Hölderlinstraße 3 , 57076 Siegen , Germany
- Institute of Physics, EIT 2, Faculty of Electrical Engineering and Information Technology , Universität der Bundeswehr München , Werner-Heisenberg-Weg 39 , 85577 Neubiberg , Germany
| | - Niall McEvoy
- School of Chemistry , Trinity College Dublin , Dublin 2 , Ireland
- Centre for the Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and BioEngineering Research (AMBER) , Trinity College Dublin , Dublin 2 , Ireland
| | - Sarah Riazimehr
- Department of Electrical Engineering and Computer Science , University of Siegen , Hölderlinstraße 3 , 57076 Siegen , Germany
- Chair of Electronic Devices, Faculty of Electrical Engineering and Information Technology , RWTH Aachen University , Otto-Blumenthal-Str. 2 , 52074 Aachen , Germany
| | - Daniel S Schneider
- Department of Electrical Engineering and Computer Science , University of Siegen , Hölderlinstraße 3 , 57076 Siegen , Germany
| | - Farzan Gity
- Tyndall National Institute , University College Cork , Lee Maltings, Dyke Parade , Cork T12 R5CP , Ireland
| | - Scott Monaghan
- Tyndall National Institute , University College Cork , Lee Maltings, Dyke Parade , Cork T12 R5CP , Ireland
| | - Paul K Hurley
- Tyndall National Institute , University College Cork , Lee Maltings, Dyke Parade , Cork T12 R5CP , Ireland
- Department of Chemistry , University College Cork , Lee Maltings, Dyke Parade , Cork T12 R5CP , Ireland
| | - Max C Lemme
- Department of Electrical Engineering and Computer Science , University of Siegen , Hölderlinstraße 3 , 57076 Siegen , Germany
- Chair of Electronic Devices, Faculty of Electrical Engineering and Information Technology , RWTH Aachen University , Otto-Blumenthal-Str. 2 , 52074 Aachen , Germany
- AMO GmbH , Advanced Microelectronic Center Aachen , Otto-Blumenthal-Str. 25 , 52074 Aachen , Germany
| | - Georg S Duesberg
- Institute of Physics, EIT 2, Faculty of Electrical Engineering and Information Technology , Universität der Bundeswehr München , Werner-Heisenberg-Weg 39 , 85577 Neubiberg , Germany
- School of Chemistry , Trinity College Dublin , Dublin 2 , Ireland
- Centre for the Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and BioEngineering Research (AMBER) , Trinity College Dublin , Dublin 2 , Ireland
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