1
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Riisnaes KJ, Alshehri M, Leontis I, Mastria R, Lam HT, De Marco L, Coriolano A, Craciun MF, Russo S. 2D Hybrid Perovskite Sensors for Environmental and Healthcare Monitoring. ACS APPLIED MATERIALS & INTERFACES 2024; 16:31399-31406. [PMID: 38836799 PMCID: PMC11195008 DOI: 10.1021/acsami.4c02966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 05/24/2024] [Accepted: 05/28/2024] [Indexed: 06/06/2024]
Abstract
Layered perovskites, a novel class of two-dimensional (2D) layered materials, exhibit versatile photophysical properties of great interest in photovoltaics and optoelectronics. However, their instability to environmental factors, particularly water, has limited their utility. In this study, we introduce an innovative solution to the problem by leveraging the unique properties of natural beeswax as a protective coating of 2D-fluorinated phenylethylammonium lead iodide perovskite. These photodetectors show outstanding figures of merit, such as a responsivity of >2200 A/W and a detectivity of 2.4 × 1018 Jones. The hydrophobic nature of beeswax endows the 2D perovskite sensors with an unprecedented resilience to prolonged immersion in contaminated water, and it increases the lifespan of devices to a period longer than one year. At the same time, the biocompatibility of the beeswax and its self-cleaning properties make it possible to use the very same turbidity sensors for healthcare in photoplethysmography and monitor the human heartbeat with clear systolic and diastolic signatures. Beeswax-enabled multipurpose optoelectronics paves the way to sustainable electronics by ultimately reducing the need for multiple components.
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Affiliation(s)
- Karl Jonas Riisnaes
- Centre
for Graphene Science, College of Engineering, Mathematics and Physical
Sciences, University of Exeter, Exeter EX4 4QL, U.K.
| | - Mohammed Alshehri
- Centre
for Graphene Science, College of Engineering, Mathematics and Physical
Sciences, University of Exeter, Exeter EX4 4QL, U.K.
| | - Ioannis Leontis
- Centre
for Graphene Science, College of Engineering, Mathematics and Physical
Sciences, University of Exeter, Exeter EX4 4QL, U.K.
| | - Rosanna Mastria
- Centre
for Graphene Science, College of Engineering, Mathematics and Physical
Sciences, University of Exeter, Exeter EX4 4QL, U.K.
- Institute
of Nanotechnology, Via
Monteroni, Lecce 73100, Italy
| | - Hoi Tung Lam
- Centre
for Graphene Science, College of Engineering, Mathematics and Physical
Sciences, University of Exeter, Exeter EX4 4QL, U.K.
| | - Luisa De Marco
- Institute
of Nanotechnology, Via
Monteroni, Lecce 73100, Italy
| | | | - Monica Felicia Craciun
- Centre
for Graphene Science, College of Engineering, Mathematics and Physical
Sciences, University of Exeter, Exeter EX4 4QL, U.K.
| | - Saverio Russo
- Centre
for Graphene Science, College of Engineering, Mathematics and Physical
Sciences, University of Exeter, Exeter EX4 4QL, U.K.
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2
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Jin B, Lu Y, Sun J, Sun X, Wen L, Zhang Q, Zhao D, Qiu M. Cryogenic Electron-Beam Writing for Perovskite Metasurface. NANO LETTERS 2024; 24:5610-5617. [PMID: 38669343 DOI: 10.1021/acs.nanolett.4c00954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
Halide perovskites (HPs) metasurfaces have recently attracted significant interest due to their potential to not only further enhance device performance but also reveal the unprecedented functionalities and novel photophysical properties of HPs. However, nanopatterning on HPs is critically challenging as they are readily destructed by the organic solvents in the standard lithographic processes. Here, we present a novel, subtle, and fully nondestructive HPs metasurface fabrication strategy based on cryogenic electron-beam writing. This technique allows for high-precision patterning and in situ imaging of HPs with excellent compatibility. As a proof-of-concept, broadband absorption enhanced metasurfaces were realized by patterning nanopillar arrays on CH3NH3PbI3 film, which results in photodetectors with approximately 14-times improvement on responsivity and excellent stability. Our findings highlight the great feasibility of cryogenic electron-beam writing for producing perovskite metasurface and unlocking the unprecedented photoelectronic properties of HPs.
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Affiliation(s)
- Binbin Jin
- School of Information and Electrical Engineering, Hangzhou City University, Hangzhou 310015, China
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou 310024, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou 310024, China
| | - Yihan Lu
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou 310024, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou 310024, China
| | - Jiacheng Sun
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou 310024, China
| | - Xinyu Sun
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou 310024, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou 310024, China
| | - Liaoyong Wen
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou 310024, China
| | - Qing Zhang
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Ding Zhao
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou 310024, China
- Westlake Institute for Optoelectronics, Fuyang, Hangzhou 311421, China
| | - Min Qiu
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou 310024, China
- Westlake Institute for Optoelectronics, Fuyang, Hangzhou 311421, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou 310024, China
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3
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Kang L, Wang S, Xu Q, Wu J, Wu Y, Huang L, Chen Q, Lin Z. Passivation of Organic-Inorganic Hybrid Perovskite with Poly(lactic Acid) to Achieve Stable Red-Light Flexible Films. Inorg Chem 2024; 63:7053-7062. [PMID: 38575504 DOI: 10.1021/acs.inorgchem.4c00693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Low-dimensional organic-inorganic hybrid perovskites (OIHPs) have shown significant potential in the optoelectronic field due to their adjustable structure and properties. However, the poor air stability and flexibility of the OIHP crystals limit their further development. Herein, three OIHP crystals have been synthesized using cadmium chloride and the isomer of phenylenediamine as raw materials. Mn2+ doping turns on the red-light emission of Cd-based OIHPs at around 625 nm. Interestingly, the organic ligands with different steric hindrance can induce a transition of the OIHP structure from two dimensions (2D) to one dimension (1D), thereby regulating the quantum yield of red luminescence in the range of 38.4% to nearly 100%. It is found that the surface-exposed amino groups are easy to oxidize, resulting in the instability of these OIHP crystals. Therefore, poly(lactic acid) (PLA) is selected to passivate OIHPs through hydrogen bonding between C═O of PLA and -NH2 on the surface of OIHPs. As a result, the production of OIHP-based flexible films with highly efficient and stable red emission can be obtained after being encapsulated by PLA. They demonstrate enormous application potential in flexible X-ray imaging. This study not only realizes stable perovskite films but also provides an effective design idea for red flexible scintillators.
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Affiliation(s)
- Liwen Kang
- Fujian Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
| | - Shuaiqi Wang
- Fujian Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
| | - Qiaohong Xu
- College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Junyan Wu
- Fujian Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
| | - Yuechuan Wu
- Fujian Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
| | - Limei Huang
- Fujian Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
| | - Qiushui Chen
- College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Zhenghuan Lin
- Fujian Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
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4
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Yao Z, Xiong Y, Kang H, Xu X, Guo J, Li W, Xu X. Tunable Periodic Nanopillar Array for MAPbI 3 Perovskite Photodetectors with Improved Light Absorption. ACS OMEGA 2024; 9:2606-2614. [PMID: 38250387 PMCID: PMC10795138 DOI: 10.1021/acsomega.3c07390] [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: 09/25/2023] [Revised: 11/29/2023] [Accepted: 11/30/2023] [Indexed: 01/23/2024]
Abstract
In the field of optoelectronic applications, the vigorous development of organic-inorganic hybrid perovskite materials, such as methylammonium lead triiodide (MAPbI3), has spurred continuous research on methods to enhance the photodetection performance. Periodic nanoarrays can effectively improve the light absorption of perovskite thin films. However, there are still challenges in fabricating tunable periodic patterned and large-area perovskite nanoarrays. In this study, we present a cost-effective and facile approach utilizing nanosphere lithography and dry etching techniques to create a large-area Si nanopillar array, which is employed for patterning MAPbI3 thin films. The scanning electron microscopy (SEM) and X-ray diffraction (XRD) results reveal that the introduction of nanopillar structures did not have a significant adverse effect on the crystallinity of the MAPbI3 thin film. Light absorption tests and optical simulations indicate that the nanopillar array enhances the light intensity within the perovskite films, leading to photodetectors with a responsivity of 11.2 A/W and a detectivity of 7.3 × 1010 Jones at 450 nm in wavelength. Compared with photodetectors without nanostructures, these photodetectors exhibit better visible light absorption. Finally, we demonstrate the application of these photodetector arrays in a prototype image sensor.
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Affiliation(s)
- Zhengtong Yao
- Key
Laboratory of Advanced Civil Engineering Materials of Ministry of
Education, Key Laboratory of D&A for Metal-Functional Materials,
School of Materials Science & Engineering, Tongji University, Shanghai 201804, China
| | - Yuting Xiong
- Key
Laboratory of Advanced Civil Engineering Materials of Ministry of
Education, Key Laboratory of D&A for Metal-Functional Materials,
School of Materials Science & Engineering, Tongji University, Shanghai 201804, China
| | - Hanyue Kang
- Key
Laboratory of Advanced Civil Engineering Materials of Ministry of
Education, Key Laboratory of D&A for Metal-Functional Materials,
School of Materials Science & Engineering, Tongji University, Shanghai 201804, China
| | - Xiuzhen Xu
- Key
Laboratory of Advanced Civil Engineering Materials of Ministry of
Education, Key Laboratory of D&A for Metal-Functional Materials,
School of Materials Science & Engineering, Tongji University, Shanghai 201804, China
| | - Jianhe Guo
- Guangdong
Provincial Key Laboratory of Sensing Technology and Biomedical
Instrument, School of Biomedical Engineering, Shenzhen Campus of Sun Yat-Sen University, Shenzhen 518107, China
| | - Wen Li
- Key
Laboratory of Advanced Civil Engineering Materials of Ministry of
Education, Key Laboratory of D&A for Metal-Functional Materials,
School of Materials Science & Engineering, Tongji University, Shanghai 201804, China
| | - Xiaobin Xu
- Key
Laboratory of Advanced Civil Engineering Materials of Ministry of
Education, Key Laboratory of D&A for Metal-Functional Materials,
School of Materials Science & Engineering, Tongji University, Shanghai 201804, China
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5
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Huang CY, Li H, Wu Y, Lin CH, Guan X, Hu L, Kim J, Zhu X, Zeng H, Wu T. Inorganic Halide Perovskite Quantum Dots: A Versatile Nanomaterial Platform for Electronic Applications. NANO-MICRO LETTERS 2022; 15:16. [PMID: 36580150 PMCID: PMC9800676 DOI: 10.1007/s40820-022-00983-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 10/31/2022] [Indexed: 05/19/2023]
Abstract
Metal halide perovskites have generated significant attention in recent years because of their extraordinary physical properties and photovoltaic performance. Among these, inorganic perovskite quantum dots (QDs) stand out for their prominent merits, such as quantum confinement effects, high photoluminescence quantum yield, and defect-tolerant structures. Additionally, ligand engineering and an all-inorganic composition lead to a robust platform for ambient-stable QD devices. This review presents the state-of-the-art research progress on inorganic perovskite QDs, emphasizing their electronic applications. In detail, the physical properties of inorganic perovskite QDs will be introduced first, followed by a discussion of synthesis methods and growth control. Afterwards, the emerging applications of inorganic perovskite QDs in electronics, including transistors and memories, will be presented. Finally, this review will provide an outlook on potential strategies for advancing inorganic perovskite QD technologies.
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Affiliation(s)
- Chien-Yu Huang
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Hanchen Li
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Ye Wu
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics and Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, People's Republic of China
| | - Chun-Ho Lin
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Xinwei Guan
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Long Hu
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Jiyun Kim
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Xiaoming Zhu
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Haibo Zeng
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics and Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, People's Republic of China.
| | - Tom Wu
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia.
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6
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Liu S, Li H, Lu H, Wang Y, Wen X, Deng S, Li MY, Liu S, Wang C, Li X. High Performance 0D ZnO Quantum Dot/2D (PEA) 2PbI 4 Nanosheet Hybrid Photodetectors Fabricated via a Facile Antisolvent Method. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4217. [PMID: 36500840 PMCID: PMC9738548 DOI: 10.3390/nano12234217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
Two-dimensional (2D) organic-inorganic perovskites have great potential for the fabrication of next-generation photodetectors owing to their outstanding optoelectronic features, but their utilization has encountered a bottleneck in anisotropic carrier transportation induced by the unfavorable continuity of the thin films. We propose a facile approach for the fabrication of 0D ZnO quantum dot (QD)/2D (PEA)2PbI4 nanosheet hybrid photodetectors under the atmospheric conditions associated with the ZnO QD chloroform antisolvent. Profiting from the antisolvent, the uniform morphology of the perovskite thin films is obtained owing to the significantly accelerated nucleation site formation and grain growth rates, and ZnO QDs homogeneously decorate the surface of (PEA)2PbI4 nanosheets, which spontaneously passivate the defects on perovskites and enhance the carrier separation by the well-matched band structure. By varying the ZnO QD concentration, the Ion/Ioff ratio of the photodetectors radically elevates from 78.3 to 1040, and a 12-fold increase in the normalized detectivity is simultaneously observed. In addition, the agglomeration of perovskite grains is governed by the annealing temperature, and the photodetector fabricated at a relatively low temperature of 120 °C exhibits excellent stability after a 50-cycle test in the air condition without any encapsulation.
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Affiliation(s)
- Shijie Liu
- School of Science, Wuhan University of Technology, Wuhan 430070, China
| | - Hao Li
- School of Science, Wuhan University of Technology, Wuhan 430070, China
| | - Haifei Lu
- School of Science, Wuhan University of Technology, Wuhan 430070, China
| | - Yanran Wang
- School of Science, Wuhan University of Technology, Wuhan 430070, China
| | - Xiaoyan Wen
- School of Science, Wuhan University of Technology, Wuhan 430070, China
| | - Shuo Deng
- School of Science, Wuhan University of Technology, Wuhan 430070, China
| | - Ming-Yu Li
- School of Science, Wuhan University of Technology, Wuhan 430070, China
| | - Sisi Liu
- School of Science, Wuhan University of Technology, Wuhan 430070, China
| | - Cong Wang
- School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Xiao Li
- Hisense Visual Technology Co., Ltd., Qingdao 266555, China
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7
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Dun GH, Zhang H, Qin K, Tan X, Zhao R, Chen M, Huang Y, Geng XS, Li YY, Li Y, Wan P, Gou GY, Feng QX, Zheng XR, Liang R, Xie D, Zhou Y, Wang X, Tian H, Yang Y, Ren TL. Wafer-Scale Photolithography-Pixeled Pb-Free Perovskite X-ray Detectors. ACS NANO 2022; 16:10199-10208. [PMID: 35622531 DOI: 10.1021/acsnano.2c01074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Pb-free perovskite material is considered to be a promising material utilized in next-generation X-ray detectors due to its high X-ray absorption coefficient, decent carrier transport properties, and relatively low toxicity. However, the pixelation of the perovskite material with an industry-level photolithography processing method remains challenging due to its poor structural stability. Herein, we use Cs2AgBiBr6 perovskite material as the prototype and investigate its interaction with photolithographic polar solvents. Inspired by that, we propose a wafer-scale photolithography patterning method, where the pixeled perovskite array devices for X-ray detection are successfully prepared. The devices based on pixeled Pb-free perovskite material show a high detection sensitivity up to 19118 ± 763 μC Gyair-1 cm-2, which is comparable to devices with Pb-based perovskite materials and superior to the detection sensitivity (∼20 μC Gyair-1 cm-2) of the commercial a-Se detector. After pixelation, the devices achieve an improved spatial resolution capacity with the spatial frequency from 2.7 to 7.8 lp mm-1 at modulation-transfer-function (MTF) = 0.2. Thus, this work may contribute to the development of high-performance array X-ray detectors based on Cs2AgBiBr6 perovskite material.
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Affiliation(s)
- Guan-Hua Dun
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Hainan Zhang
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Ken Qin
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Xichao Tan
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Rui Zhao
- National Institute of Metrology, Beijing 100029, China
| | - Min Chen
- Brown University, Providence, Rhode Island 02912, United States
| | - Yao Huang
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Xiang-Shun Geng
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Yuan-Yuan Li
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Yuhua Li
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Peng Wan
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Guang-Yang Gou
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Qi-Xin Feng
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Xin-Ran Zheng
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Renrong Liang
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Dan Xie
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Yuanyuan Zhou
- Department of Physics, Hong Kong Baptist University, Kowloon, Hong Kong, SAR 999077, China
| | - Xueyun Wang
- Beijing Institute of Technology, Beijing 100081, China
| | - He Tian
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Yi Yang
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Tian-Ling Ren
- School of Integrated Circuits, Tsinghua University, Beijing 100084, China
- Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
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8
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Lamers N, Zhang Z, Wallentin J. Perovskite-Compatible Electron-Beam-Lithography Process Based on Nonpolar Solvents for Single-Nanowire Devices. ACS APPLIED NANO MATERIALS 2022; 5:3177-3182. [PMID: 35372798 PMCID: PMC8961732 DOI: 10.1021/acsanm.2c00188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/18/2022] [Indexed: 05/06/2023]
Abstract
Metal halide perovskites (MHPs) have been studied intensely as the active material for optoelectronic devices. Lithography methods for perovskites remain limited because of the solubility of perovskites in polar solvents. Here, we demonstrate an electron-beam-lithography process with a poly(methyl methacrylate) resist based on the nonpolar solvents o-xylene, hexane, and toluene. Features down to 50 nm size are created, and photoluminescence of CsPbBr3 nanowires exhibits no degradation. We fabricate metal contacts to single CsPbBr3 nanowires, which show a strong photoresponsivity of 0.29 A W-1. The presented method is an excellent tool for nanoscale MHP science and technology, allowing for the fabrication of complex nanostructures.
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9
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Long G, Adamo G, Tian J, Klein M, Krishnamoorthy HNS, Feltri E, Wang H, Soci C. Perovskite metasurfaces with large superstructural chirality. Nat Commun 2022; 13:1551. [PMID: 35322031 PMCID: PMC8943210 DOI: 10.1038/s41467-022-29253-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 03/02/2022] [Indexed: 11/18/2022] Open
Abstract
Recent attempts to synthesize hybrid perovskites with large chirality have been hampered by large size mismatch and weak interaction between their structure and the wavelength of light. Here we adopt a planar nanostructure design to overcome these limitations and realize all-dielectric perovskite metasurfaces with giant superstructural chirality. We identify a direct spectral correspondence between the near- and the far- field chirality, and tune the electric and magnetic multipole moments of the resonant chiral metamolecules to obtain large anisotropy factor of 0.49 and circular dichroism of 6350 mdeg. Simulations show that larger area metasurfaces could yield even higher optical activity, approaching the theoretical limits. Our results clearly demonstrate the advantages of nanostructrure engineering for the implementation of perovskite chiral photonic, optoelectronic, and spintronic devices. Though chiral hybrid organic-inorganic perovskites are attractive for next-generation optoelectronics, imparting strong chirality through chemical synthesis has proved challenging. Here, the authors report all-dielectric perovskite metasurfaces with giant superstructural chirality via planar nanostructuring.
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Affiliation(s)
- Guankui Long
- Centre for Disruptive Photonic Technologies, The Photonics Institute, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.,School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, 300350, Tianjin, China
| | - Giorgio Adamo
- Centre for Disruptive Photonic Technologies, The Photonics Institute, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.,Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Jingyi Tian
- Centre for Disruptive Photonic Technologies, The Photonics Institute, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.,Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Maciej Klein
- Centre for Disruptive Photonic Technologies, The Photonics Institute, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.,Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Harish N S Krishnamoorthy
- Centre for Disruptive Photonic Technologies, The Photonics Institute, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.,Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Elena Feltri
- Centre for Disruptive Photonic Technologies, The Photonics Institute, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.,Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.,Department of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy
| | - Hebin Wang
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, 300350, Tianjin, China
| | - Cesare Soci
- Centre for Disruptive Photonic Technologies, The Photonics Institute, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore. .,Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.
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10
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Xiao Y, Zhang J, Fang B, Zhao X, Hao N. Acoustics-Actuated Microrobots. MICROMACHINES 2022; 13:481. [PMID: 35334771 PMCID: PMC8949854 DOI: 10.3390/mi13030481] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/13/2022] [Accepted: 03/17/2022] [Indexed: 02/06/2023]
Abstract
Microrobots can operate in tiny areas that traditional bulk robots cannot reach. The combination of acoustic actuation with microrobots extensively expands the application areas of microrobots due to their desirable miniaturization, flexibility, and biocompatibility features. Herein, an overview of the research and development of acoustics-actuated microrobots is provided. We first introduce the currently established manufacturing methods (3D printing and photolithography). Then, according to their different working principles, we divide acoustics-actuated microrobots into three categories including bubble propulsion, sharp-edge propulsion, and in-situ microrotor. Next, we summarize their established applications from targeted drug delivery to microfluidics operation to microsurgery. Finally, we illustrate current challenges and future perspectives to guide research in this field. This work not only gives a comprehensive overview of the latest technology of acoustics-actuated microrobots, but also provides an in-depth understanding of acoustic actuation for inspiring the next generation of advanced robotic devices.
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Affiliation(s)
- Yaxuan Xiao
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi’an Jiaotong University, 28 Xianning West Road, Xi’an 710049, China; (Y.X.); (B.F.)
- Laboratory of Microscale Green Chemical Process Intensification, School of Chemical Engineering and Technology, Xi’an Jiaotong University, 28 Xianning West Road, Xi’an 710049, China;
| | - Jinhua Zhang
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi’an Jiaotong University, 28 Xianning West Road, Xi’an 710049, China; (Y.X.); (B.F.)
| | - Bin Fang
- Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi’an Jiaotong University, 28 Xianning West Road, Xi’an 710049, China; (Y.X.); (B.F.)
| | - Xiong Zhao
- Laboratory of Microscale Green Chemical Process Intensification, School of Chemical Engineering and Technology, Xi’an Jiaotong University, 28 Xianning West Road, Xi’an 710049, China;
| | - Nanjing Hao
- Laboratory of Microscale Green Chemical Process Intensification, School of Chemical Engineering and Technology, Xi’an Jiaotong University, 28 Xianning West Road, Xi’an 710049, China;
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11
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Li Z, Hong E, Zhang X, Deng M, Fang X. Perovskite-Type 2D Materials for High-Performance Photodetectors. J Phys Chem Lett 2022; 13:1215-1225. [PMID: 35089041 DOI: 10.1021/acs.jpclett.1c04225] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Photodetectors are light sensors in widespread use in image sensing, optical communication, and consumer electronics. In current smart optoelectronic technology, conventional semiconductors have encountered a bottleneck caused by inflexibility and opacity. With the ever-increasing demands for versatile optoelectronic applications, perovskite-type 2D materials demonstrate great potential for advanced photodetectors inspired by molecularly thin 2D materials. Through the reduction of thickness to thin or molecularly thin levels, single-crystalline 2D perovskites can exhibit superior optoelectronic performance characteristics, such as tunable absorption property by chemical design, enhanced carrier separation by remarkable photosensing capability, and improved carrier extraction by versatile band engineering. More importantly, perovskite-type 2D materials exhibit great potential for large-scale monolithic integration to achieve all-in-one sensing-memory-computing optoelectronic devices. In this Perspective, recent progress in 2D perovskite-based photodetectors is presented in detail. The focus is on growth strategies for reducing thickness, thickness-dependent optical and electrical properties, device engineering, heterojunction fabrication, and device performance. Finally, the current challenges and future prospects in this field are presented.
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Affiliation(s)
- Ziqing Li
- Institute of Optoelectronics, Fudan University, Shanghai 200433, P.R. China
- Department of Materials Science, Fudan University, Shanghai 200433, P.R. China
| | - Enliu Hong
- Department of Materials Science, Fudan University, Shanghai 200433, P.R. China
| | - Xinyu Zhang
- Department of Materials Science, Fudan University, Shanghai 200433, P.R. China
| | - Ming Deng
- Department of Materials Science, Fudan University, Shanghai 200433, P.R. China
| | - Xiaosheng Fang
- Institute of Optoelectronics, Fudan University, Shanghai 200433, P.R. China
- Department of Materials Science, Fudan University, Shanghai 200433, P.R. China
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12
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Zhang J, Liu J. In situ construction of a Te/CsPbBr 3 heterojunction for self-powered photodetector. RSC Adv 2022; 12:2729-2735. [PMID: 35425291 PMCID: PMC8979205 DOI: 10.1039/d1ra08236a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/03/2022] [Indexed: 12/16/2022] Open
Abstract
In this study, CsPbBr3 particles were prepared by a simple solvent evaporation method in ambient environment; the p-n heterojunction formed by CsPbBr3 particles on the surface of a single long Te wire was used to construct a high-performance Te/CsPbBr3 photodetector. Compared with CsPbBr3 PDs, the Te/CsPbBr3 photodetector showed improved photocurrent, and exhibited characteristics of excellent self-powered performance, broad-spectrum response (UV-visible), and ultra-fast response speed (t rise = 0.09 ms). In addition, under zero bias and upon 540 nm light irradiation, the device had good responsivity (0.35 mA W-1), high photosensitivity (up to 100 on/off ratio), and a detectivity of 1.42 × 1010 Jones. This study provides insight into the possibility of manufacturing high-performance self-powered photodetectors through a simple in situ construction of heterojunctions.
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Affiliation(s)
- Jie Zhang
- College of Electronic and Information Engineering, Changshu Institute of Technology Changshu 215500 China
- Suzhou Key Laboratory of Advanced Lighting and Display Technologies China
| | - Jiaojiao Liu
- College of Electronic and Information Engineering, Changshu Institute of Technology Changshu 215500 China
- Suzhou Key Laboratory of Advanced Lighting and Display Technologies China
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13
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Ban X, Yu J, He X, Qiu S, Zhou T, Zhang K, Gao C. Highly Efficient Quasi-2D Perovskite Light-Emitting Diodes Incorporating a TADF Dendrimer as an Exciton-Retrieving Additive. ACS APPLIED MATERIALS & INTERFACES 2021; 13:44585-44595. [PMID: 34510897 DOI: 10.1021/acsami.1c14493] [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
Although small organics or polymer additives have been introduced to enhance film formation and radiative recombination of perovskite light-emitting diodes (PeLEDs), the exciton utilization and quantum efficiency need further optimization. Here, we introduce a thermal-activated delayed fluorescence (TADF) dendrimer as an additive to enhance the surface coverage and reduce the trap state of the grain boundary. More importantly, the TADF nature of such an additive can retrieve the exciton dissociated from perovskite or trapped by the grain boundary and then transfer the energy back to emissive perovskite through the Förster energy transfer process. Since the triplets can be reused by reverse intersystem crossing in such a TADF additive, the theoretical exciton utilization is 100%. As a result, the optimized PeLEDs cooperating with a TADF additive achieved a high current efficiency of 39.0 cd A-1 and an ultrabright luminescence of 18,000 cd m-2, which are almost 5 times higher than those of the control device without an additive. Moreover, the device stability monitored by half-lifetime at 1000 cd m-2 enhanced 2 times after introducing the TADF dendrimer as an additive. The parent dendrimer without a TADF feature was also synthesized as an additive to explore the mechanism action, which found that 54% enhancement of device efficiency can be attributed to defect passivating, while 46% was assigned to retrieved energy. This research first demonstrates that the TADF dendrimer is a promising exciton-retrieving additive for enhancing the performance of PeLEDs by passivating defect, filling up grain boundary, and retrieving leakage exciton.
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Affiliation(s)
- Xinxin Ban
- School of Environmental and Chemical Engineering, Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Jianmin Yu
- School of Environmental and Chemical Engineering, Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Xiaoli He
- School of Physical Science and Technology, MOE Key Laboratory on Luminescence and Real Time Analysis, Southwest University, Chongqing 400715, China
| | - Suyu Qiu
- School of Environmental and Chemical Engineering, Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Tao Zhou
- School of Environmental and Chemical Engineering, Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Kaizhi Zhang
- School of Environmental and Chemical Engineering, Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Chunhong Gao
- School of Physical Science and Technology, MOE Key Laboratory on Luminescence and Real Time Analysis, Southwest University, Chongqing 400715, China
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14
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Vijjapu MT, Surya SG, He JH, Salama KN. Highly Selective Self-Powered Organic-Inorganic Hybrid Heterojunction of a Halide Perovskite and InGaZnO NO 2 Sensor. ACS APPLIED MATERIALS & INTERFACES 2021; 13:40460-40470. [PMID: 34415137 DOI: 10.1021/acsami.1c06546] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Self-powered sensors can lead to disruptive advances in self-sustainable sensing systems that are imperative for evolving human lifestyles. For the first time, we demonstrate the fabrication of a heterojunction sensor using p-type hybrid-halide perovskites (CH3NH3PbBr3) and an n-type semiconducting metal oxide thin film [InGaZnO (IGZO)] for the detection of NO2 gas and power generation. Combining the excellent photoelectric properties of perovskites and the remarkable gas-sensing properties of IGZO at room temperature, the devised sensors generate open-circuit voltage and modulate according to the ambient NO2 concentration. The major challenge in devising self-powered gas sensors is to attain harvesting capability and selectivity simultaneously, owing to perovskites reactivity in the presence of oxygen and humidity. In this work, we developed a novel approach and fabricated a heterojunction sensor using parylene-c as an additional layer to curb the cross-sensitivity and to enhance the selectivity of the sensor. Even under the low concentrations of NO2, the developed sensor exhibits remarkable sensitivity, selectivity, and repeatability. The devices are sensitive and robust even under extreme humidity conditions (80% RH) and synthetic air. The devised sensor configuration is one way to eliminate the cross-sensitivity issue of the perovskite-based devices and serves as a reference for the development of self-powered sensors.
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Affiliation(s)
- Mani Teja Vijjapu
- Sensors Lab, Advanced Membranes and Porous Materials Center, Computer, Electrical and Mathematical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Sandeep G Surya
- Sensors Lab, Advanced Membranes and Porous Materials Center, Computer, Electrical and Mathematical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Jr-Hau He
- Computer, Electrical and Mathematical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
| | - Khaled N Salama
- Sensors Lab, Advanced Membranes and Porous Materials Center, Computer, Electrical and Mathematical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
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15
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Liu W, Wang J, Xu X, Zhao C, Xu X, Weiss PS. Single-Step Dual-Layer Photolithography for Tunable and Scalable Nanopatterning. ACS NANO 2021; 15:12180-12188. [PMID: 34170108 DOI: 10.1021/acsnano.1c03703] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Conventional photolithography, due to its scalability, robustness, and straightforward processes, has been widely applied to micro- and nanostructure manufacturing in electronics, optics, and biology. However, optical diffraction limits the ultimate resolution of conventional photolithography, which hinders its potential in nanoscale patterning for broader applications. Here, we introduce a derivative of conventional photolithography for nanoscale patterning called dual-layer photolithography (DLPL), which is based on the controlled exposure and development of overlapping positive and negative photoresists. In a typical experiment, substrates are sequentially coated by two layers of photoresists (both positive and negative). Then, we purposefully control the exposure time to generate slightly larger features in the positive photoresist than those in the negative photoresist. After development, their overlapping areas become the final features, which outline the original features. We demonstrate line widths down to 300 nm here, which can be readily improved with more precise control. By adjusting the lithography parameters and material deposition, the feature sizes, shapes (e.g., rings, numbers, letters), line widths (300-900 nm), and materials (e.g., SiO2, Cr, and Ag) of these features can be independently controlled. Combined with anisotropic etching, more complex three-dimensional nanostructures can be fabricated as well, as we demonstrate here with Si. We further fabricate photodetectors as an example application to show that these nanostructures fabricated by DLPL can be used to promote light-trapping MAPbI3 perovskite films to achieve good photoelectric properties. This strategy is not limited to ultraviolet photolithography and may also be incorporated into other energetic beam-based lithographic approaches, including deep and extreme ultraviolet photolithographies and electron beam lithography, to enhance their resolution.
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Affiliation(s)
- Wenfei Liu
- California NanoSystems Institute and Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Jiabao Wang
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Key Laboratory of D&A for Metal-Functional Materials, School of Materials Science & Engineering, & Institute for Advanced Study, Tongji University, Shanghai 201804, China
| | - Xiuzhen Xu
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Key Laboratory of D&A for Metal-Functional Materials, School of Materials Science & Engineering, & Institute for Advanced Study, Tongji University, Shanghai 201804, China
| | - Chuanzhen Zhao
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Xiaobin Xu
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Key Laboratory of D&A for Metal-Functional Materials, School of Materials Science & Engineering, & Institute for Advanced Study, Tongji University, Shanghai 201804, China
| | - Paul S Weiss
- California NanoSystems Institute and Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
- Department of Bioengineering and Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, California 90095, United States
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16
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Madhu M, Ramakrishnan R, Vijay V, Hariharan M. Free Charge Carriers in Homo-Sorted π-Stacks of Donor-Acceptor Conjugates. Chem Rev 2021; 121:8234-8284. [PMID: 34133137 DOI: 10.1021/acs.chemrev.1c00078] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Inspired by the high photoconversion efficiency observed in natural light-harvesting systems, the hierarchical organization of molecular building blocks has gained impetus in the past few decades. Particularly, the molecular arrangement and packing in the active layer of organic solar cells (OSCs) have garnered significant attention due to the decisive role of the nature of donor/acceptor (D/A) heterojunctions in charge carrier generation and ultimately the power conversion efficiency. This review focuses on the recent developments in emergent optoelectronic properties exhibited by self-sorted donor-on-donor/acceptor-on-acceptor arrangement of covalently linked D-A systems, highlighting the ultrafast excited state dynamics of charge transfer and transport. Segregated organization of donors and acceptors promotes the delocalization of photoinduced charges among the stacks, engendering an enhanced charge separation lifetime and percolation pathways with ambipolar conductivity and charge carrier yield. Covalently linking donors and acceptors ensure a sufficient D-A interface and interchromophoric electronic coupling as required for faster charge separation while providing better control over their supramolecular assemblies. The design strategies to attain D-A conjugate assemblies with optimal charge carrier generation efficiency, the scope of their application compared to state-of-the-art OSCs, current challenges, and future opportunities are discussed in the review. An integrated overview of rational design approaches derived from the comprehension of underlying photoinduced processes can pave the way toward superior optoelectronic devices and bring in new possibilities to the avenue of functional supramolecular architectures.
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Affiliation(s)
- Meera Madhu
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala, India 695551
| | - Remya Ramakrishnan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala, India 695551
| | - Vishnu Vijay
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala, India 695551
| | - Mahesh Hariharan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala, India 695551
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17
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Liu X, Hu S, Lin Z, Li X, Song L, Yu W, Wang Q, He W. High-Performance MoS 2 Photodetectors Prepared Using a Patterned Gallium Nitride Substrate. ACS APPLIED MATERIALS & INTERFACES 2021; 13:15820-15826. [PMID: 33755432 DOI: 10.1021/acsami.0c22799] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Strain-adjusting the band gap of MoS2 using patterned substrates to improve the photoelectric performance of MoS2 has gradually become a research hotspot in recent years. However, there are still difficulties in obtaining high-quality two-dimensional materials and preparing photodetectors on patterned substrates. To overcome this, a continuous multilayer MoS2 film was transferred to a patterned gallium nitride substrate (PGS) for the fabrication of photodetectors, and density functional theory calculations showed that the band gap of the MoS2 film increased and that the electron effective mass decreased due to the introduction of PGS. In addition, finite difference time domain simulation showed that the electric field in the MoS2 area on the PGS is enhanced compared with that on the flat gallium nitride substrate due to the enhanced light scattering effect of the PGS. The photoresponse of the MoS2/PGS photodetector at 460 nm was also enhanced, with Iph increasing by 5 times, R increasing by 2 times, NEP decreasing to 3.88 × 10-13 W/Hz1/2, and D* increasing to 5.6 × 108 Jones. Our research has important guiding significance in adjusting the band gap of MoS2 and enhancing the photoelectric performance of MoS2 photodetectors.
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Affiliation(s)
- Xinke Liu
- College of Materials Science and Engineering, College of Electronics and Information Engineering, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen University, 3688 Nanhai Avenue, Shenzhen 518060, People Republic of China
- Department of Electrical and Computer Engineering, National University of Singapore, 117583, Singapore
| | - Shengqun Hu
- College of Materials Science and Engineering, College of Electronics and Information Engineering, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen University, 3688 Nanhai Avenue, Shenzhen 518060, People Republic of China
| | - Zhichen Lin
- College of Materials Science and Engineering, College of Electronics and Information Engineering, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen University, 3688 Nanhai Avenue, Shenzhen 518060, People Republic of China
| | - Xiaohua Li
- College of Materials Science and Engineering, College of Electronics and Information Engineering, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen University, 3688 Nanhai Avenue, Shenzhen 518060, People Republic of China
| | - Lijun Song
- Research Center of Guangdong Intelligent Charging and System Integration Engineering Technology, Shenzhen Winsemi Microelectronics Co., Ltd., Shenzhen 518000, People's Republic of China
| | - Wenjie Yu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, CAS, 865 Chang Ning Road, Shanghai 200050, People's Republic of China
| | - Qi Wang
- Dongguan Institute of Opto-Electronics, Peking University, Doguanguan 523808, People's Republic of China
| | - Wei He
- College of Materials Science and Engineering, College of Electronics and Information Engineering, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen University, 3688 Nanhai Avenue, Shenzhen 518060, People Republic of China
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18
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Pandey A, Yadav R, Kaur M, Singh P, Gupta A, Husale S. High performing flexible optoelectronic devices using thin films of topological insulator. Sci Rep 2021; 11:832. [PMID: 33436932 PMCID: PMC7804467 DOI: 10.1038/s41598-020-80738-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 12/21/2020] [Indexed: 01/29/2023] Open
Abstract
Topological insulators (TIs) possess exciting nonlinear optical properties due to presence of metallic surface states with the Dirac fermions and are predicted as a promising material for broadspectral phodotection ranging from UV (ultraviolet) to deep IR (infrared) or terahertz range. The recent experimental reports demonstrating nonlinear optical properties are mostly carried out on non-flexible substrates and there is a huge demand for the fabrication of high performing flexible optoelectronic devices using new exotic materials due to their potential applications in wearable devices, communications, sensors, imaging etc. Here first time we integrate the thin films of TIs (Bi2Te3) with the flexible PET (polyethylene terephthalate) substrate and report the strong light absorption properties in these devices. Owing to small band gap material, evolving bulk and gapless surface state conduction, we observe high responsivity and detectivity at NIR (near infrared) wavelengths (39 A/W, 6.1 × 108 Jones for 1064 nm and 58 A/W, 6.1 × 108 Jones for 1550 nm). TIs based flexible devices show that photocurrent is linearly dependent on the incident laser power and applied bias voltage. Devices also show very fast response and decay times. Thus we believe that the superior optoelectronic properties reported here pave the way for making TIs based flexible optoelectronic devices.
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Affiliation(s)
- Animesh Pandey
- grid.419701.a0000 0004 1796 3268Academy of Scientific and Innovative Research (AcSIR), Council of Scientific and Industrial Research, National Physical Laboratory, Dr. K. S Krishnan Road, New Delhi, 110012 India ,grid.419701.a0000 0004 1796 3268Council of Scientific and Industrial Research, National Physical Laboratory, Dr. K. S Krishnan Road, New Delhi, 110012 India
| | - Reena Yadav
- grid.419701.a0000 0004 1796 3268Academy of Scientific and Innovative Research (AcSIR), Council of Scientific and Industrial Research, National Physical Laboratory, Dr. K. S Krishnan Road, New Delhi, 110012 India ,grid.419701.a0000 0004 1796 3268Council of Scientific and Industrial Research, National Physical Laboratory, Dr. K. S Krishnan Road, New Delhi, 110012 India
| | - Mandeep Kaur
- grid.419701.a0000 0004 1796 3268Council of Scientific and Industrial Research, National Physical Laboratory, Dr. K. S Krishnan Road, New Delhi, 110012 India
| | - Preetam Singh
- grid.419701.a0000 0004 1796 3268Academy of Scientific and Innovative Research (AcSIR), Council of Scientific and Industrial Research, National Physical Laboratory, Dr. K. S Krishnan Road, New Delhi, 110012 India ,grid.419701.a0000 0004 1796 3268Council of Scientific and Industrial Research, National Physical Laboratory, Dr. K. S Krishnan Road, New Delhi, 110012 India
| | - Anurag Gupta
- grid.419701.a0000 0004 1796 3268Academy of Scientific and Innovative Research (AcSIR), Council of Scientific and Industrial Research, National Physical Laboratory, Dr. K. S Krishnan Road, New Delhi, 110012 India ,grid.419701.a0000 0004 1796 3268Council of Scientific and Industrial Research, National Physical Laboratory, Dr. K. S Krishnan Road, New Delhi, 110012 India
| | - Sudhir Husale
- grid.419701.a0000 0004 1796 3268Academy of Scientific and Innovative Research (AcSIR), Council of Scientific and Industrial Research, National Physical Laboratory, Dr. K. S Krishnan Road, New Delhi, 110012 India ,grid.419701.a0000 0004 1796 3268Council of Scientific and Industrial Research, National Physical Laboratory, Dr. K. S Krishnan Road, New Delhi, 110012 India
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19
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Song C, Noh G, Kim TS, Kang M, Song H, Ham A, Jo MK, Cho S, Chai HJ, Cho SR, Cho K, Park J, Song S, Song I, Bang S, Kwak JY, Kang K. Growth and Interlayer Engineering of 2D Layered Semiconductors for Future Electronics. ACS NANO 2020; 14:16266-16300. [PMID: 33301290 DOI: 10.1021/acsnano.0c06607] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Layered materials that do not form a covalent bond in a vertical direction can be prepared in a few atoms to one atom thickness without dangling bonds. This distinctive characteristic of limiting thickness around the sub-nanometer level allowed scientists to explore various physical phenomena in the quantum realm. In addition to the contribution to fundamental science, various applications were proposed. Representatively, they were suggested as a promising material for future electronics. This is because (i) the dangling-bond-free nature inhibits surface scattering, thus carrier mobility can be maintained at sub-nanometer range; (ii) the ultrathin nature allows the short-channel effect to be overcome. In order to establish fundamental discoveries and utilize them in practical applications, appropriate preparation methods are required. On the other hand, adjusting properties to fit the desired application properly is another critical issue. Hence, in this review, we first describe the preparation method of layered materials. Proper growth techniques for target applications and the growth of emerging materials at the beginning stage will be extensively discussed. In addition, we suggest interlayer engineering via intercalation as a method for the development of artificial crystal. Since infinite combinations of the host-intercalant combination are possible, it is expected to expand the material system from the current compound system. Finally, inevitable factors that layered materials must face to be used as electronic applications will be introduced with possible solutions. Emerging electronic devices realized by layered materials are also discussed.
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Affiliation(s)
- Chanwoo Song
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Gichang Noh
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Center for Electronic Materials, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea
| | - Tae Soo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Minsoo Kang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Hwayoung Song
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Ayoung Ham
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Min-Kyung Jo
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Operando Methodology and Measurement Team, Interdisciplinary Materials Measurement Institute, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Korea
| | - Seorin Cho
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Hyun-Jun Chai
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Seong Rae Cho
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Kiwon Cho
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Jeongwon Park
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Seungwoo Song
- Operando Methodology and Measurement Team, Interdisciplinary Materials Measurement Institute, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Korea
| | - Intek Song
- Department of Applied Chemistry, Andong National University, Andong 36728, Korea
| | - Sunghwan Bang
- Materials & Production Engineering Research Institute, LG Electronics, Pyeongtaek-si 17709, Korea
| | - Joon Young Kwak
- Center for Electronic Materials, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea
| | - Kibum Kang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
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20
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Additive Modulated Perovskite Microstructures for High Performance Photodetectors. MICROMACHINES 2020; 11:mi11121090. [PMID: 33321695 PMCID: PMC7763584 DOI: 10.3390/mi11121090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/30/2020] [Accepted: 12/02/2020] [Indexed: 11/17/2022]
Abstract
Organic-inorganic hybrid perovskites have been widely used as light sensitive components for high-efficient photodetectors due to their superior optoelectronic properties. However, the unwanted crystallographic defects of perovskites typically result in high dark current, and thus limit the performance of the device. Herein, we introduce a simple route of microstructures control in MAPbI3 perovskites that associates with introducing an additive of 3,3,4,4-benzophenonetetracarboxylic dianhydridean (BPTCD) for crystallization adjustment of the perovskite film. The BPTCD additive can facilitate the formation of high-quality perovskite film with a compact and nearly pinhole-free morphology. Through characterizing the molecular interactions, it was found that the carbonyl groups in BPTCD is the key reason that promoted the nucleation and crystallization of MAPbI3. As a result, we obtained high-efficient and stable perovskite photodetectors with low dark current of 9.98 × 10-8 A at -0.5 V, an on/off ratio value of 103, and a high detectivity exceeding 1012 Jones over the visible region.
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21
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Chen LC, Chang YT, Tien CH, Yeh YC, Tseng ZL, Lee KL, Kuo HC. Red Light-Emitting Diodes with All-Inorganic CsPbI 3/TOPO Composite Nanowires Color Conversion Films. NANOSCALE RESEARCH LETTERS 2020; 15:216. [PMID: 33196928 PMCID: PMC7669955 DOI: 10.1186/s11671-020-03430-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 10/08/2020] [Indexed: 05/15/2023]
Abstract
This work presents a method for obtaining a color-converted red light source through a combination of a blue GaN light-emitting diode and a red fluorescent color conversion film of a perovskite CsPbI3/TOPO composite. High-quality CsPbI3 quantum dots (QDs) were prepared using the hot-injection method. The colloidal QD solutions were mixed with different ratios of trioctylphosphine oxide (TOPO) to form nanowires. The color conversion films prepared by the mixed ultraviolet resin and colloidal solutions were coated on blue LEDs. The optical and electrical properties of the devices were measured and analyzed at an injection current of 50 mA; it was observed that the strongest red light intensity was 93.1 cd/m2 and the external quantum efficiency was 5.7% at a wavelength of approximately 708 nm when CsPbI3/TOPO was 1:0.35.
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Affiliation(s)
- Lung-Chien Chen
- Department of Physics, School of Science, JiMei University, Xiamen, 361021 China
| | - Yi-Tsung Chang
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei, 10608 Taiwan
| | - Ching-Ho Tien
- Department of Physics, School of Science, JiMei University, Xiamen, 361021 China
| | - Yu-Chun Yeh
- Department of Physics, School of Science, JiMei University, Xiamen, 361021 China
| | - Zong-Liang Tseng
- Department of Electronic Engineering, Ming Chi University of Technology, New Taipei City, 24301 Taiwan
| | - Kuan-Lin Lee
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei, 10608 Taiwan
| | - Hao-Chung Kuo
- Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, 30010 Taiwan
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22
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Wang Y, Guan X, Chen W, Yang J, Hu L, Yang J, Li S, Kalantar-Zadeh K, Wen X, Wu T. Illumination-Induced Phase Segregation and Suppressed Solubility Limit in Br-Rich Mixed-Halide Inorganic Perovskites. ACS APPLIED MATERIALS & INTERFACES 2020; 12:38376-38385. [PMID: 32846488 DOI: 10.1021/acsami.0c10363] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Mixing halides in perovskites has emerged as an effective strategy for tuning the band gap for optoelectronic applications and tackling the stability bottleneck. However, notable photoluminescence evolution has been observed in mixed-halide perovskites under external stimuli such as light illumination, which is attributed to phase segregation with halide inhomogeneity. In this work, we investigate the light illumination effect on the optical properties of all-inorganic mixed-halide perovskite CsPb(Br1-xIx)3 in the Br-rich regime. It is found that the critical iodine concentration, defined as the solubility limit against phase segregation, is significantly suppressed by light illumination to an extremely low level (x < 0.025), although the formation energy calculation suggests a wide range of halide mixing. Furthermore, at high I concentrations (x ≥ 0.2), the phase segregation can be rectified via dark storage within 1 h, but much slower and incomplete reversibility is observed at lower I concentrations. In the all-inorganic mixed-halide perovskite films, the light-induced phase segregation above the solubility limit is also accompanied by a monotonous increase in fluorescence lifetime. Last, we propose that light-induced phase segregation enables the potential application of encrypting erasable information in perovskite films with the aid of tailored light exposure and photoluminescence mapping.
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Affiliation(s)
- Yutao Wang
- School of Materials Science and Engineering and Advanced Materials and Manufacturing Futures Institute, University of New South Wales (UNSW), Sydney 2052, NSW, Australia
| | - Xinwei Guan
- School of Materials Science and Engineering and Advanced Materials and Manufacturing Futures Institute, University of New South Wales (UNSW), Sydney 2052, NSW, Australia
| | - Weijian Chen
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn 3122, Victoria, Australia
| | - Jack Yang
- School of Materials Science and Engineering and Advanced Materials and Manufacturing Futures Institute, University of New South Wales (UNSW), Sydney 2052, NSW, Australia
- Australian Nuclear Science and Technology Organization, Lucas Heights, Sydney 2234, NSW, Australia
| | - Long Hu
- School of Materials Science and Engineering and Advanced Materials and Manufacturing Futures Institute, University of New South Wales (UNSW), Sydney 2052, NSW, Australia
| | - Jiong Yang
- School of Chemical Engineering, University of New South Wales (UNSW), Sydney 2052, NSW, Australia
| | - Sean Li
- School of Materials Science and Engineering and Advanced Materials and Manufacturing Futures Institute, University of New South Wales (UNSW), Sydney 2052, NSW, Australia
| | - Kourosh Kalantar-Zadeh
- School of Chemical Engineering, University of New South Wales (UNSW), Sydney 2052, NSW, Australia
| | - Xiaoming Wen
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn 3122, Victoria, Australia
| | - Tom Wu
- School of Materials Science and Engineering and Advanced Materials and Manufacturing Futures Institute, University of New South Wales (UNSW), Sydney 2052, NSW, Australia
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23
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Enhanced stability in CH 3NH 3PbI 3 hybrid perovskite from mechano-chemical synthesis: structural, microstructural and optoelectronic characterization. Sci Rep 2020; 10:11228. [PMID: 32641694 PMCID: PMC7343856 DOI: 10.1038/s41598-020-68085-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 06/11/2020] [Indexed: 11/08/2022] Open
Abstract
Among the hybrid organic-inorganic perovskites MAPbX3 (MA: methyl-ammonium CH3-NH3+, X = halogen), the triiodide specimen (MAPbI3) is still the material of choice for solar energy applications. Although it is able to absorb light above its 1.6 eV bandgap, its poor stability in humid air atmosphere has been a major drawback for its use in solar cells. However, we discovered that this perovskite can be prepared by ball milling in a straightforward way, yielding specimens with a superior stability. This fact allowed us to take atomic-resolution STEM images for the first time, with sufficient quality to unveil microscopic aspects of this material. We demonstrated full Iodine content, which might be related to the enhanced stability, in a more compact PbI6 framework with reduced unit-cell volume. A structural investigation from neutron powder diffraction (NPD) data of an undeuterated specimen was essential to determine the configuration of the organic MA unit in the 100-298 K temperature range. A phase transition is identified, from the tetragonal structure observed at RT (space group I4/mcm) to an orthorhombic (space group Pnma) phase where the methyl-ammonium organic units are fully localized. Our NPD data reveal that the MA changes are gradual and start before reaching the phase transition. Optoelectronic measurements yield a photocurrent peak at an illumination wavelength of 820 nm, which is redshifted by 30 nm with respect to previously reported measurements on MAPbI3 perovskites synthesized by crystallization from organic solvents.
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24
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Flexible perylenediimide/GaN organic-inorganic hybrid system with exciting optical and interfacial properties. Sci Rep 2020; 10:10480. [PMID: 32591627 PMCID: PMC7319992 DOI: 10.1038/s41598-020-67531-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 05/26/2020] [Indexed: 11/21/2022] Open
Abstract
We report the band gap tuning and facilitated charge transport at perylenediimide (PDI)/GaN interface in organic–inorganic hybrid nanostructure system over flexible titanium (Ti) foil. Energy levels of the materials perfectly align and facilitate high efficiency charge transfer from electron rich n-GaN to electron deficient PDI molecules. Proper interface formation resulted in band gap tuning as well as facilitated electron transport as evident in I–V characteristics. Growth of PDI/GaN hybrid system with band gap tuning from ultra-violet to visible region and excellent electrical properties open up new paradigm for fabrication of efficient optoelectronics devices on flexible substrates.
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25
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Yan G, Jiang B, Yuan Y, Kuang M, Liu X, Zeng Z, Zhao C, He JH, Mai W. Importance of Bi-O Bonds at the Cs 2AgBiBr 6 Double-Perovskite/Substrate Interface for Crystal Quality and Photoelectric Performance. ACS APPLIED MATERIALS & INTERFACES 2020; 12:6064-6073. [PMID: 31912720 DOI: 10.1021/acsami.9b20640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Interface interactions between perovskite materials and substrates are of great significance for the development of high-quality perovskite materials. Herein, we have successfully prepared Cs2AgBiBr6 double-perovskite films via a one-step spin-coating process and demonstrated a novel approach that modifies the surface of substrates with an ultrathin metal oxide (MOx) layer to promote the film quality and photoelectric performance. Characterization results strongly suggest that the improvement is attributed to the Bi-O interfacial interaction at substrate/perovskite interface. Benefiting from this interface interaction, the average grain size of Cs2AgBiBr6 films has remarkably risen up to ∼500 nm, which is nearly four times larger than the one directly deposited on a commercial fluorine-doped tin oxide substrate. Meanwhile, the pin hole surface area ratio has reduced from 2.61 to 0.60%. Furthermore, the corresponding photodetectors (PDs) have been fabricated and the performance has significantly improved owing to the enhanced Cs2AgBiBr6 film quality. The on-off ratio of the optimized PD has a boost of almost 10 times. In addition, the minimum detected irradiation has decreased from 9.7 × 10-8 to 1.9 × 10-9 W cm-2, as well as the maximum detectivity has increased from 3.3 × 1011 to 1.2 × 1013 Jones. These results suggest a feasible method for crystallization improvement of double-perovskite films and indicate promising promotion of photoelectric performance.
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Affiliation(s)
- Genghua Yan
- Siyuan Laboratory, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics , Jinan University , Guangzhou , Guangdong 510632 , China
| | - Bangqi Jiang
- Siyuan Laboratory, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics , Jinan University , Guangzhou , Guangdong 510632 , China
| | - Ye Yuan
- Siyuan Laboratory, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics , Jinan University , Guangzhou , Guangdong 510632 , China
| | - Min Kuang
- Guangdong Institute of New Materials , Guangdong Academy of Sciences , Guangzhou 510650 , China
| | - Xiaoyan Liu
- Guangdong Institute of Semiconductor Industrial Technology , Guangdong Academy of Sciences , Guangzhou 510650 , China
| | - Zhaohui Zeng
- Guangdong Institute of Semiconductor Industrial Technology , Guangdong Academy of Sciences , Guangzhou 510650 , China
| | - Chuanxi Zhao
- Siyuan Laboratory, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics , Jinan University , Guangzhou , Guangdong 510632 , China
| | - Jr-Hau He
- Department of Materials Science an Engineering , City University of Hong Kong , Kowloon , Hong Kong 999077 , China
| | - Wenjie Mai
- Siyuan Laboratory, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics , Jinan University , Guangzhou , Guangdong 510632 , China
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26
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Cook B, Gong M, Corbin A, Ewing D, Tramble A, Wu J. Inkjet-Printed Imbedded Graphene Nanoplatelet/Zinc Oxide Bulk Heterojunctions Nanocomposite Films for Ultraviolet Photodetection. ACS OMEGA 2019; 4:22497-22503. [PMID: 31909332 PMCID: PMC6941389 DOI: 10.1021/acsomega.9b03173] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 12/05/2019] [Indexed: 05/10/2023]
Abstract
A ZnO sol-gel precursor (ZnOPr) and graphene nanoplatelets (GnPs) are mixed into a composite ink for inkjet printing photodetectors with bulk heterojunctions of ZnO/GnP on a heated SiO2/Si substrate. Heating of the SiO2/Si wafers at ∼50 °C was found optimal to prevent segregated droplets on the hydrophobic surface of the SiO2/Si substrate during printing. After printing the ZnO/GnP channels, thermal annealing at 350 °C for 2 h was performed for crystallization of ZnO and formation of the ZnO/GnP heterojunctions. The GnP concentration was varied from 0, 5, 20, and 30 mM to evaluate optimal formation of the ZnO/GnP bulk heterojunction nanocomposites based on ultraviolet photoresponse performance. The best performance was observed at the 20 mM GnP concentration with the photoresponsivity reaching 2.2 A/W at an incident ultraviolet power of 2.2 μW and a 5 V bias. This photoresponsivity is an order of magnitude better than the previously reported counterparts, including 0.13 mA/W for dropcasted ZnO-graphite composites and much higher than 0.5 A/W for aerosol printed ZnO. The improved performance is attributed to the ZnO/GnP bulk heterojunctions with improved interfaces that enable efficient exciton dissociation and the charge transport. The developed inkjet printing of sol-gel composite inks approach can be scalable and low cost for practical applications.
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Affiliation(s)
- Brent Cook
- Department
of Physics and Astronomy, University of
Kansas, Lawrence, Kansas 66045, United States
| | - Maogang Gong
- Department
of Physics and Astronomy, University of
Kansas, Lawrence, Kansas 66045, United States
| | - Alex Corbin
- Shawnee
Mission East High School, 7500 Mission Road, Prairie Village, Kansas 66208, United
States
| | - Dan Ewing
- Department
of Energy’s National Security Campus, Kansas City, Missouri 64147, United States
| | - Ashley Tramble
- Department
of Energy’s National Security Campus, Kansas City, Missouri 64147, United States
| | - Judy Wu
- Department
of Physics and Astronomy, University of
Kansas, Lawrence, Kansas 66045, United States
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27
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Erkılıç U, Solís-Fernández P, Ji HG, Shinokita K, Lin YC, Maruyama M, Suenaga K, Okada S, Matsuda K, Ago H. Vapor Phase Selective Growth of Two-Dimensional Perovskite/WS 2 Heterostructures for Optoelectronic Applications. ACS APPLIED MATERIALS & INTERFACES 2019; 11:40503-40511. [PMID: 31589816 DOI: 10.1021/acsami.9b13904] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Organic-inorganic hybrid perovskites have attracted increased interest owing to their exceptional optoelectronic properties and promising applications. Monolayers of transition metal dichalcogenides (TMDCs), such as tungsten disulfide (WS2), are also intriguing because of their unique optoelectronic properties and their atomically thin and flexible structures. Therefore, the combination of these different types of materials is very attractive in terms of fundamental science of interface interaction, as well as for the realization of ultrathin optoelectronic devices with high performance. Here, we demonstrate the controlled synthesis of two-dimensional (2D) perovskite/WS2 heterostructures by an all vapor-phase growth approach. This involves the chemical vapor deposition (CVD) growth of monolayer WS2, followed by the vapor-phase selective deposition of 2D PbI2 onto the WS2 with the successive conversion of PbI2 to organic-inorganic perovskite (CH3NH3PbI3). Moreover, the selective growth of the perovskite on prepatterned WS2 enables the direct synthesis of patterned heterostructures, avoiding any damage to the perovskite. The photodetectors utilizing the perovskite/WS2 heterostructure show increased responsivities compared with isolated thin perovskite obtained by conventional solution methods. The integration of 2D perovskite with TMDCs opens a new avenue to fabricate advanced devices by combining their unique properties and overcoming current processing difficulties of perovskites.
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Affiliation(s)
- Ufuk Erkılıç
- Interdisciplinary Graduate School of Engineering Sciences , Kyushu University , Fukuoka 816-8580 , Japan
| | | | - Hyun Goo Ji
- Interdisciplinary Graduate School of Engineering Sciences , Kyushu University , Fukuoka 816-8580 , Japan
| | - Keisuke Shinokita
- Institute of Advanced Energy , Kyoto University , Kyoto 611-0011 , Japan
| | - Yung-Chang Lin
- National Institute of Advanced Industrial Science and Technology (AIST) , Tsukuba 305-8565 , Japan
| | - Mina Maruyama
- Graduate School of Pure and Applied Sciences , University of Tsukuba , Tsukuba 305-8571 , Japan
| | - Kazu Suenaga
- National Institute of Advanced Industrial Science and Technology (AIST) , Tsukuba 305-8565 , Japan
| | - Susumu Okada
- Graduate School of Pure and Applied Sciences , University of Tsukuba , Tsukuba 305-8571 , Japan
| | - Kazunari Matsuda
- Institute of Advanced Energy , Kyoto University , Kyoto 611-0011 , Japan
| | - Hiroki Ago
- Interdisciplinary Graduate School of Engineering Sciences , Kyushu University , Fukuoka 816-8580 , Japan
- Global Innovation Center (GIC) , Kyushu University , Fukuoka 816-8580 , Japan
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28
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Black A, Urbanos FJ, Roberts J, Acebrón M, Bernardo-Gavito R, Juárez BH, Robinson BJ, Young RJ, Vázquez de Parga AL, Granados D. Photodetecting Heterostructures from Graphene and Encapsulated Colloidal Quantum Dot Films. ACS OMEGA 2019; 4:15824-15828. [PMID: 31592149 PMCID: PMC6776979 DOI: 10.1021/acsomega.9b01449] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Accepted: 07/26/2019] [Indexed: 05/16/2023]
Abstract
Heterostructure devices consisting of graphene and colloidal quantum dots (QDs) have been remarkably successful as photodetectors and have opened the door to technological applications based on the combination of these low-dimensional materials. This work explores the photodetection properties of a heterostructure consisting of a graphene field effect transistor covered by a film of silica-encapsulated colloidal QDs. Defects at the surface of the silica shell trap optically excited charge carriers, which simultaneously enables photodetection via two mechanisms: photogating, resulting in a net p-doping of the device, and Coulombic scattering of charge carriers in the graphene, producing an overall decrease in the current magnitude.
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Affiliation(s)
- Andrés Black
- IMDEA
Nanoscience, 28049 Madrid, Spain
- Departamento de Física de la Materia Condensada, Departamento de
Química-Física Aplicada, and Condensed Matter Physics Center
(IFIMAC), Universidad Autónoma de
Madrid, 28049 Madrid, Spain
| | | | - Jonathan Roberts
- Physics
Department, Lancaster University, Lancaster LA1 4YB, U.K.
| | | | | | - Beatriz H. Juárez
- IMDEA
Nanoscience, 28049 Madrid, Spain
- Departamento de Física de la Materia Condensada, Departamento de
Química-Física Aplicada, and Condensed Matter Physics Center
(IFIMAC), Universidad Autónoma de
Madrid, 28049 Madrid, Spain
| | | | - Robert J. Young
- Physics
Department, Lancaster University, Lancaster LA1 4YB, U.K.
| | - Amadeo L. Vázquez de Parga
- IMDEA
Nanoscience, 28049 Madrid, Spain
- Departamento de Física de la Materia Condensada, Departamento de
Química-Física Aplicada, and Condensed Matter Physics Center
(IFIMAC), Universidad Autónoma de
Madrid, 28049 Madrid, Spain
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29
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Guo J, Zhou B, Zong R, Pan L, Li X, Yu X, Yang C, Kong L, Dai Q. Stretchable and Highly Sensitive Optical Strain Sensors for Human-Activity Monitoring and Healthcare. ACS APPLIED MATERIALS & INTERFACES 2019; 11:33589-33598. [PMID: 31464425 DOI: 10.1021/acsami.9b09815] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Flexible and stretchable strain sensors are essential to developing smart wearable devices for monitoring human activities. Such sensors have been extensively exploited with various conductive materials and structures, which, however, are normally in need of complex manufacturing processes and confronted with the challenge to achieve both large stretchability and high sensitivity. Here, we report a simple and low-cost optical strategy for the design of stretchable strain sensors which are capable of measuring large strains of 100% with a low detection limit (±0.09%), a fast responsivity (<12 ms), and high reproducibility (over 6000 cycles). The optical strain sensor (OS2) is fabricated by assembling plasmonic gold nanoparticles (GNPs) in stretchable elastomer-based optical fibers, where a core/cladding structure with step-index configuration is adopted for light confinement. The stretchable, GNP-incorporated optical fiber shows strong localized surface plasmon resonance effects that enable sensitive and reversible detection of strain deformations with high linearity and negligible hysteresis. The unique mechanical and sensing properties of the OS2 enable its assembling into clothing or mounting on skin surfaces for monitoring various human activities from physiological signals as subtle as wrist pulses to large motions of joint bending and hand gestures. We further apply the OS2 for quantitative analysis of motor disorders such as Parkinson's disease and demonstrate its compatibility in strong electromagnetic interference environments during functional magnetic resonance imaging, showing great promises for diagnostics and assessments of motor neuron diseases in clinics.
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Affiliation(s)
- Jingjing Guo
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments , Tsinghua University , Beijing 100084 , China
| | - Bingqian Zhou
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments , Tsinghua University , Beijing 100084 , China
| | | | | | | | | | - Changxi Yang
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments , Tsinghua University , Beijing 100084 , China
| | - Lingjie Kong
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments , Tsinghua University , Beijing 100084 , China
| | - Qionghai Dai
- Department of Automation , Tsinghua University , Beijing 100084 , China
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30
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Zhang Y, Li S, Yang W, Joshi MK, Fang X. Millimeter-Sized Single-Crystal CsPbrB 3/CuI Heterojunction for High-Performance Self-Powered Photodetector. J Phys Chem Lett 2019; 10:2400-2407. [PMID: 31017440 DOI: 10.1021/acs.jpclett.9b00960] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Millimeter-sized CsPbBr3 single crystals were prepared via a facile solvent-evaporation method in ambient environment. The heterojunction between p-type CuI and n-type CsPbBr3 was formed by a simple immersion process. The as-integrated CsPbBr3/CuI device exhibits a good rectifying behavior (ratio of 250 at ±2 V). In particular, the photodetector shows excellent self-powered characteristics under 540 nm light illumination, including high photocurrent (near 100 nA); high photosensitivity (on/off ratio of 1.5 × 103); fast response speed (0.04/2.96 ms); and good wavelength selectivity (565-525 nm), responsivity (1.4 mA W-1), and detectivity (6.2 × 1010 Jones). This work provides a simple, low-cost, and effective method for preparing millimeter-level CsPbBr3 single crystals. The simple device architecture further provides a promising approach for fabricating high-performance self-powered photodetectors.
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Affiliation(s)
- Yong Zhang
- Department of Materials Science , Fudan University , Shanghai , 200433 , P.R. China
| | - Siyuan Li
- Department of Materials Science , Fudan University , Shanghai , 200433 , P.R. China
| | - Wei Yang
- Department of Materials Science , Fudan University , Shanghai , 200433 , P.R. China
| | - Mahesh Kumar Joshi
- Department of Materials Science , Fudan University , Shanghai , 200433 , P.R. China
| | - Xiaosheng Fang
- Department of Materials Science , Fudan University , Shanghai , 200433 , P.R. China
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