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Cai Q, You H, Hou Q, Tao T, Xie Z, Cao X, Liu B, Chen D, Lu H, Zhang R, Zheng Y. Self-Assembly Nanopillar/Superlattice Hierarchical Structure: Boosting AlGaN Crystalline Quality and Achieving High-Performance Ultraviolet Avalanche Photodetector. ACS APPLIED MATERIALS & INTERFACES 2022; 14:33525-33537. [PMID: 35830680 DOI: 10.1021/acsami.2c06417] [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
As a burgeoning wide-band gap semiconductor material, AlxGa1-xN alloy has attracted great attention for versatile applications due to its superior properties. However, its poor crystalline quality has restricted the employment of AlGaN on electronic devices for a long time. Herein, we proposed a nanopillar/superlattice hierarchical structure for AlGaN epitaxy to boost the crystalline quality. The scale-controllable AlN nanopillar template is fabricated from a nickel self-assembly process. AlGaN initiates the epitaxial laterally overgrowth mode based on the nanopatterned template. In addition, the AlxGa1-xN/AlyGa1-yN superlattice structure could effectively block the propagation of threading dislocation segments. The kinetics of the dislocation and epitaxy process in the hierarchical structure is intuitively demonstrated and analyzed. Consequently, the dislocation density of AlGaN grown by this method is significantly reduced by more than 30 times compared to the AlN template. No threading dislocation segments were observed in the 4 μm TEM field of view. Moreover, based on the hierarchical structure, we also fabricated an AlGaN ultraviolet avalanche photodiode (APD). The APD exhibits superior performance, achieving a maximum gain of 1.3 × 105 and high responsivity of 1.46 A/W at 324 nm. The reliability of the nanopillar/superlattice AlGaN epitaxial procedure is anticipated to shed new light on the nitride semiconductor material, further bringing a breakthrough to wide-band gap electronic devices.
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Affiliation(s)
- Qing Cai
- Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Haifan You
- Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Qianyu Hou
- Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Tao Tao
- Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Zili Xie
- Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Xun Cao
- Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Bin Liu
- Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Dunjun Chen
- Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Hai Lu
- Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Rong Zhang
- Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
- Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Department of Physics, Xiamen University, Xiamen 361005, China
- Institute of Future Display Technology, Tan Kah Kee Innovation Laboratory, Xiamen 361102, China
| | - Youdou Zheng
- Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China
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The era of nano-bionic: 2D materials for wearable and implantable body sensors. Adv Drug Deliv Rev 2022; 186:114315. [PMID: 35513130 DOI: 10.1016/j.addr.2022.114315] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/30/2022] [Accepted: 04/29/2022] [Indexed: 12/20/2022]
Abstract
Nano-bionics have the potential of revolutionizing modern medicine. Among nano-bionic devices, body sensors allow to monitor in real-time the health of patients, to achieve personalized medicine, and even to restore or enhance human functions. The advent of two-dimensional (2D) materials is facilitating the manufacturing of miniaturized and ultrathin bioelectronics, that can be easily integrated in the human body. Their unique electronic properties allow to efficiently transduce physical and chemical stimuli into electric current. Their flexibility and nanometric thickness facilitate the adaption and adhesion to human body. The low opacity permits to obtain transparent devices. The good cellular adhesion and reduced cytotoxicity are advantageous for the integration of the devices in vivo. Herein we review the latest and more significant examples of 2D material-based sensors for health monitoring, describing their architectures, sensing mechanisms, advantages and, as well, the challenges and drawbacks that hampers their translation into commercial clinical devices.
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Li Z, Li Z, Zuo C, Fang X. Application of Nanostructured TiO 2 in UV Photodetectors: A Review. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2109083. [PMID: 35061927 DOI: 10.1002/adma.202109083] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/16/2022] [Indexed: 06/14/2023]
Abstract
As a wide-bandgap semiconductor material, titanium dioxide (TiO2 ), which possesses three crystal polymorphs (i.e., rutile, anatase, and brookite), has gained tremendous attention as a cutting-edge material for application in the environment and energy fields. Based on the strong attractiveness from its advantages such as high stability, excellent photoelectric properties, and low-cost fabrication, the construction of high-performance photodetectors (PDs) based on TiO2 nanostructures is being extensively developed. An elaborate microtopography and device configuration is the most widely used strategy to achieve efficient TiO2 -based PDs with high photoelectric performances; however, a deep understanding of all the key parameters that influence the behavior of photon-generated carriers, is also highly required to achieve improved photoelectric performances, as well as their ultimate functional applications. Herein, an in-depth illustration of the electrical and optical properties of TiO2 nanostructures in addition to the advances in the technological issues such as preparation, microdefects, p-type doping, bandgap engineering, heterojunctions, and functional applications are presented. Finally, a future outlook for TiO2 -based PDs, particularly that of further functional applications is provided. This work will systematically illustrate the fundamentals of TiO2 and shed light on the preparation of more efficient TiO2 nanostructures and heterojunctions for future photoelectric applications.
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Affiliation(s)
- Ziliang Li
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Ziqing Li
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Chaolei Zuo
- 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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54
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Zhu H, Shen Y, Fang Q, Yang X, Chen L, Xu S. GaN/MgI 2 van der Waals heterostructure: a two-factor tunable photocatalyst for hydrogen evolution. Phys Chem Chem Phys 2022; 24:15075-15082. [PMID: 35696996 DOI: 10.1039/d2cp01456d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With the increasing environmental pollution and energy crisis, it is significant to develop environmentally friendly and adjustable photocatalysts for water splitting. Here we explored the optoelectronic properties of several H-GaN/MgI2 vdW heterostructures by regulating different polarization surfaces and numbers of GaN layers. Our results demonstrate that all structures, except 2L-Ga-GaN/MgI2, exhibit excellent physical stability. Moreover, the band structures and band edge positions demonstrate that only the heterostructure of 3L-Ga-GaN/MgI2 with both suitable band alignment (type-II) and an acceptable band gap (∼1.92 eV) is most satisfactory for water splitting. Additionally, the absorption coefficient of the 3L-Ga-GaN/MgI2 heterostructure can reach over ∼105 cm-1, which has further confirmed its excellent advantage in photocatalysis. Finally, in the case of 6% external strain for the 3L-Ga-GaN/MgI2 heterostructure, a rollover in band alignment (from type-II to type-I) is exhibited. These promising features of the GaN/MgI2 vdW heterostructure give a new paradigm for developing novel efficient and adjustable photocatalytic water-splitting materials.
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Affiliation(s)
- Hua Zhu
- Institute of Optoelectronics Technology, China Jiliang University, Hangzhou, 310018, China.
| | - Yang Shen
- Institute of Optoelectronics Technology, China Jiliang University, Hangzhou, 310018, China.
| | - Qianglong Fang
- Institute of Optoelectronics Technology, China Jiliang University, Hangzhou, 310018, China.
| | - Xiaodong Yang
- Key Laboratory of Ecophysics and Department of Physics, Shihezi University, Xinjiang 832003, China.
| | - Liang Chen
- Institute of Optoelectronics Technology, China Jiliang University, Hangzhou, 310018, China.
| | - Shiqing Xu
- Institute of Optoelectronics Technology, China Jiliang University, Hangzhou, 310018, China.
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55
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Wu CY, Wang M, Li J, Le Y, Fei W, Hu JG, Wu D, Zhou YX, Luo LB. Non-Ultrawide Bandgap Semiconductor GaSe Nanobelts for Sensitive Deep Ultraviolet Light Photodetector Application. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2200594. [PMID: 35561026 DOI: 10.1002/smll.202200594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 04/19/2022] [Indexed: 06/15/2023]
Abstract
In this paper, the authors report the fabrication of a sensitive deep ultraviolet (DUV) photodetector by using an individual GaSe nanobelt with a thickness of 52.1 nm, which presents the highest photoresponse at 265 nm illumination with a responsivity and photoconductive gain of about 663 A W-1 and 3103 at a 3 V bias, respectively, comparable to or even better than other reported devices based on conventional wide bandgap semiconductors. According to the simulation, this photoelectric property is associated with the wavelength-dependent absorption coefficient of the GaSe crystal, for which incident light with shorter wavelengths will be absorbed near the surface, while light with longer wavelengths will have a larger penetration depth, leading to a blueshift of the absorption edge with decreasing thickness. Further finite element method (FEM) simulation reveals that the relatively thin GaSe nanobelt exhibits an enhanced transversal standing wave pattern compared to its thicker counterpart at a wavelength of 265 nm, leading to an enhanced light-matter interaction and thereby more efficient photocurrent generation. The device can also function as an effective image sensor with acceptable spatial resolution. This work will shed light on the facile fabrication of a high-performance DUV photodetector from non-ultrawide bandgap semiconductors.
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Affiliation(s)
- Chun-Yan Wu
- School of Microelectronics, Hefei University of Technology, Hefei, 230009, China
| | - Ming Wang
- School of Microelectronics, Hefei University of Technology, Hefei, 230009, China
| | - Jingyue Li
- School of Microelectronics, Hefei University of Technology, Hefei, 230009, China
| | - Yuxuan Le
- School of Microelectronics, Hefei University of Technology, Hefei, 230009, China
| | - Wu Fei
- School of Physics, Hefei University of Technology, Hefei, 230009, China
| | - Ji-Gang Hu
- School of Physics, Hefei University of Technology, Hefei, 230009, China
| | - Di Wu
- School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Yu-Xue Zhou
- College of Physical Science and Technology, Yangzhou University, Yangzhou, 225002, China
| | - Lin-Bao Luo
- School of Microelectronics, Hefei University of Technology, Hefei, 230009, China
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56
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Zou C, Liu Q, Chen K, Chen F, Zhao Z, Cao Y, Deng C, Wang X, Li X, Zhan S, Gao F, Li S. A high-performance polarization-sensitive and stable self-powered UV photodetector based on a dendritic crystal lead-free metal-halide CsCu 2I 3/GaN heterostructure. MATERIALS HORIZONS 2022; 9:1479-1488. [PMID: 35262131 DOI: 10.1039/d1mh02073k] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Polarization-sensitive photodetectors are the core of optics applications and have been successfully demonstrated in photodetectors based on the newly-emerging metal-halide perovskites. However, achieving high polarization sensitivity is still extremely challenging. In addition, most of the previously reported photodetectors were concentrated on 1D lead-halide perovskites and 2D asymmetric intrinsic structure materials, but suffered from being external bias driven, lead-toxicity, poor stability and complex processes, severely limiting their practical applications. Here, we demonstrate a high-performance polarization-sensitive and stable polarization-sensitive UV photodetector based on a dendritic crystal lead-free metal-halide CsCu2I3/GaN heterostructure. By combining the anisotropic morphology and asymmetric intrinsic structure of CsCu2I3 dendrites with the isotropic material GaN film, a high specific surface area and built-in electric field are achieved, exhibiting an ultra-high polarization selectivity up to 28.7 and 102.8 under self-driving mode and -3 V bias, respectively. To our knowledge, such a high polarization selectivity has exceeded those of all of the reported perovskite-based devices, and is comparable to, or even superior to, those of the conventional 2D heterostructure materials. Interestingly, the unsealed device shows outstanding stability, and can be stored for over 2 months, and effectively maintained the performance even after repeated heating (373K)-cooling (300K) for different periods of time in ambient air, indicating a remarkable temperature tolerance and desired compatibility for applications under harsh conditions. Such excellent performance and simple method strongly show that the CsCu2I3/GaN heterojunction photodetector has great potential in practical applications with high polarization-sensitivity. This work provides a new insight into designing novel high-performance polarization-sensitive optoelectronic devices.
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Affiliation(s)
- Can Zou
- Guangdong Engineering Research centre of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou, 510631, P. R. China.
| | - Qing Liu
- Guangdong Engineering Research centre of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou, 510631, P. R. China.
| | - Kai Chen
- Guangdong Engineering Research centre of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou, 510631, P. R. China.
| | - Fei Chen
- Guangdong Engineering Research centre of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou, 510631, P. R. China.
| | - Zixuan Zhao
- Guangdong Engineering Research centre of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou, 510631, P. R. China.
| | - Yunxuan Cao
- Guangdong Engineering Research centre of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou, 510631, P. R. China.
| | - Congcong Deng
- Guangdong Engineering Research centre of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou, 510631, P. R. China.
| | - Xingfu Wang
- Guangdong Engineering Research centre of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou, 510631, P. R. China.
| | - Xiaohang Li
- King Abdullah University of Science and Technology (KAUST), Advanced Semiconductor Laboratory, Thuwal 23955, Saudi Arabia
| | - Shaobin Zhan
- Shenzhen Institute of Information Technology, Innovation and Entrepreneurship School, Shenzhen, 518172, P. R. China.
| | - Fangliang Gao
- Guangdong Engineering Research centre of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou, 510631, P. R. China.
| | - Shuti Li
- Guangdong Engineering Research centre of Optoelectronic Functional Materials and Devices, Institute of Semiconductors, South China Normal University, Guangzhou, 510631, P. R. China.
- 21C Innovation Laboratory, Contemporary Amperex Technology Ltd, Ningde, Fujian, 352100, P. R. China.
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57
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Wu D, Xu M, Zeng L, Shi Z, Tian Y, Li XJ, Shan CX, Jie J. In Situ Fabrication of PdSe 2/GaN Schottky Junction for Polarization-Sensitive Ultraviolet Photodetection with High Dichroic Ratio. ACS NANO 2022; 16:5545-5555. [PMID: 35324154 DOI: 10.1021/acsnano.1c10181] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Polarization-sensitive ultraviolet (UV) photodetection is of great technological importance for both civilian and military applications. Two-dimensional (2D) group-10 transition-metal dichalcogenides (TMDs), especially palladium diselenide (PdSe2), are promising candidates for polarized photodetection due to their low-symmetric crystal structure. However, the lack of an efficient heterostructure severely restricts their applications in UV-polarized photodetection. Here, we develop a PdSe2/GaN Schottky junction by in situ van der Waals growth for highly polarization-sensitive UV photodetection. Owing to the high-quality junction, the device exhibits an appealing UV detection performance in terms of a large responsivity of 249.9 mA/W, a high specific detectivity, and a fast response speed. More importantly, thanks to the puckered structure of the PdSe2 layer, the device is highly sensitive to polarized UV light with a large dichroic ratio up to 4.5, which is among the highest for 2D TMD material-based UV polarization-sensitive photodetectors. These findings further enable the demonstration of the outstanding polarized UV imaging capability of the Schottky junction, as well as its utility as an optical receiver for secure UV optical communication. Our work offers a strategy to fabricate the PdSe2-based heterostructure for high-performance polarization-sensitive UV photodetection.
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Affiliation(s)
- Di Wu
- School of Physics and Microelectronics and Key Laboratory of Material Physics, Ministry of Education, Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Mengmeng Xu
- School of Physics and Microelectronics and Key Laboratory of Material Physics, Ministry of Education, Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Longhui Zeng
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Zhifeng Shi
- School of Physics and Microelectronics and Key Laboratory of Material Physics, Ministry of Education, Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Yongzhi Tian
- School of Physics and Microelectronics and Key Laboratory of Material Physics, Ministry of Education, Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Xin Jian Li
- School of Physics and Microelectronics and Key Laboratory of Material Physics, Ministry of Education, Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Chong-Xin Shan
- School of Physics and Microelectronics and Key Laboratory of Material Physics, Ministry of Education, Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Jiansheng Jie
- Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa 999078, Macau SAR, China
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, China
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58
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Li B, Zhu QB, Cui C, Liu C, Wang ZH, Feng S, Sun Y, Zhu HL, Su X, Zhao YM, Zhang HW, Yao J, Qiu S, Li QW, Wang XM, Wang XH, Cheng HM, Sun DM. Patterning of Wafer-Scale MXene Films for High-Performance Image Sensor Arrays. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201298. [PMID: 35226775 DOI: 10.1002/adma.202201298] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Indexed: 06/14/2023]
Abstract
As a rapidly growing family of 2D transition metal carbides and nitrides, MXenes are recognized as promising materials for the development of future electronics and optoelectronics. So far, the reported patterning methods for MXene films lack efficiency, resolution, and compatibility, resulting in limited device integration and performance. Here, a high-performance MXene image sensor array fabricated by a wafer-scale combination patterning method of an MXene film is reported. This method combines MXene centrifugation, spin-coating, photolithography, and dry-etching and is highly compatible with mainstream semiconductor processing, with a resolution up to 2 µm, which is at least 100 times higher than other large-area patterning methods reported previously. As a result, a high-density integrated array of 1024-pixel Ti3 C2 Tx /Si photodetectors with a detectivity of 7.73 × 1014 Jones and a light-dark current ratio (Ilight /Idark ) of 6.22 × 106 , which is the ultrahigh value among all reported MXene-based photodetectors, is fabricated. This patterning technique paves a way for large-scale high-performance MXetronics compatible with mainstream semiconductor processes.
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Affiliation(s)
- Bo Li
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
| | - Qian-Bing Zhu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
| | - Cong Cui
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
| | - Chi Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
| | - Zuo-Hua Wang
- National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, College of Mechanical Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Shun Feng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Physical Science and Technology, ShanghaiTech University, 393 Huaxiazhong Road, Shanghai, 200031, China
| | - Yun Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Hong-Lei Zhu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
| | - Xin Su
- National Laboratory of Solid State Microstructures, School of Physics, School of Electronic Science and Engineering, Collaborative Innovation Centre of Advanced Microstructures, Nanjing University, Nanjing, 210008, China
| | - Yi-Ming Zhao
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
| | - Hong-Wang Zhang
- National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, College of Mechanical Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Jian Yao
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, China
| | - Song Qiu
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, China
| | - Qing-Wen Li
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, China
| | - Xiao-Mu Wang
- National Laboratory of Solid State Microstructures, School of Physics, School of Electronic Science and Engineering, Collaborative Innovation Centre of Advanced Microstructures, Nanjing University, Nanjing, 210008, China
| | - Xiao-Hui Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
| | - Hui-Ming Cheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
- Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen, 518055, China
| | - Dong-Ming Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
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Shih Y, Li W, Shen J, Chu S, Uen W, Lee H, Lin G, Chen Y, Tu W. Low‐Power Photodetectors Based on PVA Modified Reduced Graphene Oxide Hybrid Solutions. Macromol Rapid Commun 2022; 43:e2100854. [DOI: 10.1002/marc.202100854] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/23/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Yi‐Shan Shih
- Department of Electrical Engineering National Cheng Kung University No.1, University Road Tainan City 701 Taiwan
| | - Wei‐Chen Li
- Department of Electronic Engineering Chung Yuan Christian University No. 200, Chung‐Pei Road, Chungli District Taoyuan City 320 Taiwan
| | - Jun‐Hao Shen
- Department of Electrical Engineering National Cheng Kung University No.1, University Road Tainan City 701 Taiwan
| | - Shao‐Yu Chu
- Department of Electrical Engineering National Cheng Kung University No.1, University Road Tainan City 701 Taiwan
| | - Wu‐Yih Uen
- Department of Electronic Engineering Chung Yuan Christian University No. 200, Chung‐Pei Road, Chungli District Taoyuan City 320 Taiwan
| | - Hsin‐Ying Lee
- Department of Electrical Engineering National Cheng Kung University No.1, University Road Tainan City 701 Taiwan
| | - Gong‐Ru Lin
- Department of Electrical Engineering National Taiwan University No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
| | - Yu‐Cheng Chen
- School of Electrical and Electronic Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
| | - Wei‐Chen Tu
- Department of Electrical Engineering National Cheng Kung University No.1, University Road Tainan City 701 Taiwan
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Zheng Y, Cao B, Tang X, Wu Q, Wang W, Li G. Vertical 1D/2D Heterojunction Architectures for Self-Powered Photodetection Application: GaN Nanorods Grown on Transition Metal Dichalcogenides. ACS NANO 2022; 16:2798-2810. [PMID: 35084838 DOI: 10.1021/acsnano.1c09791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Van der Waals (vdW) heterojunctions based on two-dimensional (2D) transition metal dichalcogenide (TMD) materials have attracted the attention of researchers to conduct fundamental investigations on emerging physical phenomena and expanding diverse nano-optoelectronic devices. Herein, the quasi-van der Waals epitaxial (QvdWE) growth of vertically aligned one-dimensional (1D) GaN nanorod arrays (NRAs) on TMDs/Si substrates is reported, and their vdW heterojunctions in the applications of high-performance self-powered photodetection are demonstrated accordingly. Such 1D/2D hybrid systems fully combine the advantages of the strong light absorption of 1D GaN nanoarrays and the excellent electrical properties of 2D TMD materials, boosting the photogenerated current density, which demonstrates a light on/off ratio above 105. The device exhibits a competitive photovoltaic photoresponsivity over 10 A W-1 under a weak detectable light signal without any external bias, which is attributed to the efficient photogenerated charge separation under the strong built-in potential from the type-II band alignment of GaN NRAs/TMDs. This work presents a QvdWE route to prepare 1D/2D heterostructures for the fabrication of self-powered photodetectors, which shows promising potentials for practical applications of space communications, sensing networks, and environmental monitoring.
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Affiliation(s)
- Yulin Zheng
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Ben Cao
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Xin Tang
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Qing Wu
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Wenliang Wang
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
- Department of Electronic Materials, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Guoqiang Li
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
- Department of Electronic Materials, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
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61
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Marimuthu G, Saravanakumar K, Jeyadheepan K, Mahalakshmi K. Achieving self-powered photoresponse in mono layered SnO2 nanostructure array UV photodetector through the tailoring of electrode configuration. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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62
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Guo L, Liu X, Gao L, Wang X, Zhao L, Zhang W, Wang S, Pan C, Yang Z. Ferro-Pyro-Phototronic Effect in Monocrystalline 2D Ferroelectric Perovskite for High-Sensitive, Self-Powered, and Stable Ultraviolet Photodetector. ACS NANO 2022; 16:1280-1290. [PMID: 34995467 DOI: 10.1021/acsnano.1c09119] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
2D hybrid perovskite ferroelectrics have drawn great attention in the field of photodetection, because the spontaneous polarization-induced built-in electric field can separate electron-hole pairs, and makes self-powered photodetection possible. However, most of the 2D hybrid perovskite-based photodetectors focused on the detection of visible light, and only a few reports realized the self-powered and sensitive ultraviolet (UV) detection using wide bandgap hybrid perovskites. Here, 2D ferroelectric PMA2PbCl4 monocrystalline microbelt (MMB)-based PDs are demonstrated. By using the ferro-pyro-phototronic effect, the self-powered Ag/Bi/2D PMA2PbCl4 MMB/Bi/Ag PDs show a high photoresponsivity up to 9 A/W under 320 nm laser illumination, which is much higher than those of previously reported self-powered UV PDs. Compared with responsivity induced by the photovoltaic effect, the responsivity induced by the ferro-pyro-phototronic effect is 128 times larger. The self-powered PD also shows fast response and recovery speed, with the rise time and fall time of 162 and 226 μs, respectively. More importantly, the 2D PMA2PbCl4 MMB-based PDs with Bi/Ag electrode exhibit significant stability when subjected to high humidity, continuous laser illumination, and thermal conditions. Our findings would shed light on the ferro-pyro-phototronic-effect-based devices, and provide a good method for high-performance UV detection.
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Affiliation(s)
- Linjuan Guo
- Hebei Key Laboratory of Optic-Electronic Information and Materials, National & Local Joint Engineering Laboratory of New Energy Photoelectric Devices, College of Physics Science and Technology, Hebei University, Baoding 071002, P. R. China
| | - Xiu Liu
- Hebei Key Laboratory of Optic-Electronic Information and Materials, National & Local Joint Engineering Laboratory of New Energy Photoelectric Devices, College of Physics Science and Technology, Hebei University, Baoding 071002, P. R. China
| | - Linjie Gao
- Hebei Key Laboratory of Optic-Electronic Information and Materials, National & Local Joint Engineering Laboratory of New Energy Photoelectric Devices, College of Physics Science and Technology, Hebei University, Baoding 071002, P. R. China
| | - Xinzhan Wang
- Hebei Key Laboratory of Optic-Electronic Information and Materials, National & Local Joint Engineering Laboratory of New Energy Photoelectric Devices, College of Physics Science and Technology, Hebei University, Baoding 071002, P. R. China
| | - Lei Zhao
- Hebei Key Laboratory of Optic-Electronic Information and Materials, National & Local Joint Engineering Laboratory of New Energy Photoelectric Devices, College of Physics Science and Technology, Hebei University, Baoding 071002, P. R. China
| | - Wei Zhang
- Hebei Key Laboratory of Optic-Electronic Information and Materials, National & Local Joint Engineering Laboratory of New Energy Photoelectric Devices, College of Physics Science and Technology, Hebei University, Baoding 071002, P. R. China
| | - Shufang Wang
- Hebei Key Laboratory of Optic-Electronic Information and Materials, National & Local Joint Engineering Laboratory of New Energy Photoelectric Devices, College of Physics Science and Technology, Hebei University, Baoding 071002, P. R. China
| | - Caofeng Pan
- CAS Center for Excellence in Nanoscience, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, P. R. China
| | - Zheng Yang
- Hebei Key Laboratory of Optic-Electronic Information and Materials, National & Local Joint Engineering Laboratory of New Energy Photoelectric Devices, College of Physics Science and Technology, Hebei University, Baoding 071002, P. R. China
- CAS Center for Excellence in Nanoscience, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, P. R. China
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63
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Su L, Zhao L, Chen SY, Deng Y, Pu R, Wang Z, Xie J. Schottky-type GaN-based UV photodetector with atomic-layer-deposited TiN thin film as electrodes. OPTICS LETTERS 2022; 47:429-432. [PMID: 35030621 DOI: 10.1364/ol.449374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
In this work, a GaN-based UV photodetector with an asymmetric electrode structure was fabricated by atomic layer deposition (ALD) of TiN layers. The thickness of the TiN can be monitored in situ by a quartz crystal microbalance (QCM) and precisely controlled through the modulation of deposition cycles. During the ALD process, periodic variation in the QCM frequency was observed and correlated to the physical adsorption, chemical bonding, and the excessive precursor exhaust, which included tetrakis(dimethylamino)titanium (TDMAT) and N sources. The asymmetric TiN/GaN/TiN photodetector showed excellent photosensing performance, with a UV-visible rejection ratio of 173, a responsivity of 4.25 A/W, a detectivity of 1.1×1013 Jones, and fast response speeds (a rise time of 69 μs and a decay time of 560 μs). Moreover, the device exhibits high stability, with an attenuation of only approximately 0.5% after 360 nm light irradiation for 157 min. This result indicates the potential of TiN as a transparent contact electrode for GaN-based optoelectronic devices.
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64
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Lou TJ, Wang JQ, Wang W, Wang T, Qian PF, Bao ZL, Jing LC, Yuan XT, Geng HZ. Tannic Acid‐Modified Single‐Walled Carbon nanotube/Zinc Oxide Nanoparticle Thin Films for UV‐Visible Semitransparent Photodiode Type Photodetectors. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202100208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Tian-Jiao Lou
- TGU: Tiangong University … No. 399 Binshui West Road, Xiqing District, Tianjin Tianjin CHINA
| | - Jing-Qi Wang
- TGU: Tiangong University … No. 399 Binshui West Road, Xiqing District, Tianjin Tianjin CHINA
| | - Wenyi Wang
- TGU: Tiangong University … No. 399 Binshui West Road, Xiqing District, Tianjin Tianjin CHINA
| | - Tao Wang
- TGU: Tiangong University … No. 399 Binshui West Road, Xiqing District, Tianjin Tianjin CHINA
| | - Peng-Fei Qian
- TGU: Tiangong University … No. 399 Binshui West Road, Xiqing District, Tianjin Tianjin CHINA
| | - Ze-Long Bao
- TGU: Tiangong University … No. 399 Binshui West Road, Xiqing District, Tianjin Tianjin CHINA
| | - Li-Chao Jing
- TGU: Tiangong University … No. 399 Binshui West Road, Xiqing District, Tianjin Tianjin CHINA
| | - Xiao-Tong Yuan
- Tiangong University … No. 399 Binshui West Road, Xiqing District, Tianjin Tianjin CHINA
| | - Hong-Zhang Geng
- Tiangong University School of Material Science and Engineering No 399, Binshui West Rd., Xiqing Dist. 300387 Tianjin CHINA
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65
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Wang J, Feng T, Chen J, He JH, Fang X. Flexible 2D Cu Metal: Organic Framework@MXene Film Electrode with Excellent Durability for Highly Selective Electrocatalytic NH 3 Synthesis. RESEARCH (WASHINGTON, D.C.) 2022; 2022:9837012. [PMID: 35707045 PMCID: PMC9175116 DOI: 10.34133/2022/9837012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 04/13/2022] [Indexed: 11/15/2022]
Abstract
Electrocatalytic nitrate reduction to ammonia (ENRA) is an effective strategy to resolve environmental and energy crisis, but there are still great challenges to achieve high activity and stability synergistically for practical application in a fluid environment. The flexible film electrode may solve the abovementioned problem of practical catalytic application owing to the advantages of low cost, light weight, eco-friendliness, simple and scalable fabrication, extensive structural stability, and electrocatalytic reliability. Herein, 2D hybridization copper 1,4-benzenedi-carboxylate (CuBDC) has been grown on electronegative MXene nanosheets (Ti3C2Tx) seamlessly to prepare a 2D flexible CuBDC@Ti3C2Tx electrode for ENRA. The flexible electrode simultaneously exhibits high Faradaic efficiency (86.5%) and excellent stability for NH3 synthesis, which are comparable to previously reported nanomaterials toward ENRA. Especially, the flexible electrode maintains outstanding FE NH3 toward ENRA after the bending, twisting, folding, and crumpling tests, indicating excellent electroconductibility, high stability, and durability. This work not only provides mild permeation-mediated strategy to fabricate a flexible electrode but also explores the practical applications of the electrode with effectively environmental adaptability in solving global environmental contamination and energy crisis by effective ENRA.
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Affiliation(s)
- Jing Wang
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Tao Feng
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Jiaxin Chen
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Jr-Hau He
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Xiaosheng Fang
- Department of Materials Science, Fudan University, Shanghai 200433, China
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66
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Liang S, Xia H. Programmable fabrication of a miniaturized photodetector with thermal stability via femtosecond laser direct writing. OPTICS LETTERS 2021; 46:6075-6078. [PMID: 34913928 DOI: 10.1364/ol.446556] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 11/11/2021] [Indexed: 06/14/2023]
Abstract
With the ever-increasing sophistication of integration of electronic devices, the problem of heat accumulation has become ever more serious. Here, a miniaturized photodetector with thermal stability was fabricated by combining the excellent characteristics of femtosecond laser direct writing (FsLDW) and silicon (Si). The sensing part of the photodetector is a Si microwire composed of Si nanoparticles and the sensing area is only 300 μm2. As a result, the photodetector can work stably at a temperature as high as 100°C and the response speed of the photodetector becomes notably faster at high temperatures. Furthermore, an image sensor was successfully fabricated by integrating 16 photodetectors and the image sensor can also work stably at high temperatures. This work demonstrates the potential for application of photodetectors based on Si microwires prepared by FsLDW under harsh conditions.
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67
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Chen X, Shi Z, Tian Y, Lin P, Wu D, Li X, Dong B, Xu W, Fang X. Two-dimensional Ti 3C 2 MXene-based nanostructures for emerging optoelectronic applications. MATERIALS HORIZONS 2021; 8:2929-2963. [PMID: 34558566 DOI: 10.1039/d1mh00986a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Since the first discovery of Ti3C2 in 2011, two-dimensional (2D) transition-metal carbides, carbonitrides and nitrides, known as MXenes, have attracted significant attention. Due to their outstanding electronic, optical, mechanical, and thermal properties, versatile structures and surface chemistries, Ti3C2 MXenes have emerged as new candidates with great potential for applications in optoelectronic devices, such as photovoltaics, photodetectors and photoelectrochemical devices. The excellent metallic conductivity, high anisotropic carrier mobility, good structural and chemical stabilities, high optical transmittance, excellent mechanical strength, tunable work functions, and wide range of optical absorption properties of Ti3C2 MXene nanostructures are the key to their success in a number of electronic and photonic device applications. Herein, we summarize the fundamental properties and preparation of pure Ti3C2 MXenes, functionalized Ti3C2 MXenes and their hybrid nanocomposites, as well as their optoelectronic applications. In the end, the perspective and current challenges of Ti3C2 MXenes toward the development of advanced MXene-based nanostructures are briefly discussed for future optoelectronic applications.
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Affiliation(s)
- Xu Chen
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China.
| | - Zhifeng Shi
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China.
| | - Yongtao Tian
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China.
| | - Pei Lin
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China.
| | - Di Wu
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China.
| | - Xinjian Li
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China.
| | - Bin Dong
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, China.
| | - Wen Xu
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600, China.
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 130012 Changchun, China
| | - Xiaosheng Fang
- Department of Materials Science, Fudan University, Shanghai 200433, China.
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68
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Zhao Q, Gao F, Chen H, Gao W, Xia M, Pan Y, Shi H, Su S, Fang X, Li J. High performance polarization-sensitive self-powered imaging photodetectors based on a p-Te/n-MoSe 2 van der Waals heterojunction with strong interlayer transition. MATERIALS HORIZONS 2021; 8:3113-3123. [PMID: 34545908 DOI: 10.1039/d1mh01287h] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In-plane anisotropic two-dimensional (2D) materials offer great opportunities for developing novel polarization sensitive photodetectors without being in conjunction with filters and polarizers. However, owing to low linear dichroism ratio and insufficient optical absorption of the few layer 2D materials, the comprehensive performance of the present polarization sensitive photodetectors based on 2D materials is still lower than the practical application requirements. In this work, after systematic investigation of the structural, vibrational, and optical anisotropies of layer-structured Te nanosheets, a novel polarization-sensitive self-powered imaging photodetector with high comprehensive performance based on a p-Te/n-MoSe2 van der Waals heterojunction (vdWH) with strong interlayer transition is proposed. Owing to the high rectification ratio (104) of the diode, the device shows excellent photovoltaic characteristics. As examples, the photodetectors exhibited an ultrahigh on/off ratio of 105 at a relatively weak light intensity (4.73 mw cm-2), and the highest responsivity of the device could reach 2106 mA W-1 without any power supply. In particular, benefitting from the excellent dichroism properties of Te nanosheets synthesized in this work, the anisotropic ratio of the photocurrent (Imax/Imin) could reach as high as 16.39 (405 nm, 24.2 mw cm-2). This value obtained under zero bias voltage is much greater than that of present 2D material photodetectors even at a bias voltage. In addition, the highest detectivity is 2.91 × 1013 Jones at a low bias voltage of -0.08 V. This work provides a novel building block for high resolution polarization-sensitive photodetection of weak signals in complex environments.
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Affiliation(s)
- Qixiao Zhao
- Institute of Semiconductor Science and Technology, South China Normal University, Guangzhou 510631, P. R. China.
- Guangdong Province Key Lab of Chip and Integration Technology, Guangzhou 510631, P. R. China
| | - Feng Gao
- Key Laboratory of Micro-systems and Micro-structures Manufacturing of Ministry of Education, Harbin Institute of Technology, Harbin 150080, P. R. China
| | - Hongyu Chen
- Institute of Semiconductor Science and Technology, South China Normal University, Guangzhou 510631, P. R. China.
- Guangdong Province Key Lab of Chip and Integration Technology, Guangzhou 510631, P. R. China
| | - Wei Gao
- Institute of Semiconductor Science and Technology, South China Normal University, Guangzhou 510631, P. R. China.
- Guangdong Province Key Lab of Chip and Integration Technology, Guangzhou 510631, P. R. China
| | - Mengjia Xia
- Institute of Semiconductor Science and Technology, South China Normal University, Guangzhou 510631, P. R. China.
- Guangdong Province Key Lab of Chip and Integration Technology, Guangzhou 510631, P. R. China
| | - Yuan Pan
- Institute of Semiconductor Science and Technology, South China Normal University, Guangzhou 510631, P. R. China.
- Guangdong Province Key Lab of Chip and Integration Technology, Guangzhou 510631, P. R. China
| | - Hongyan Shi
- Department of Physics, Harbin Institude of Technology, Harbin 150080, P. R. China
| | - Shichen Su
- Institute of Semiconductor Science and Technology, South China Normal University, Guangzhou 510631, P. R. China.
- Guangdong Province Key Lab of Chip and Integration Technology, Guangzhou 510631, P. R. China
- SCNU Qingyuan Institute of Science and Technology Innovation Co., Ltd, Qingyuan 511517, P. R. China
| | - Xiaosheng Fang
- Department of Materials Science, Fudan University, Shanghai 200433, P. R. China.
| | - Jingbo Li
- Institute of Semiconductor Science and Technology, South China Normal University, Guangzhou 510631, P. R. China.
- Guangdong Province Key Lab of Chip and Integration Technology, Guangzhou 510631, P. R. China
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69
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Yan T, Cai S, Hu Z, Li Z, Fang X. Ultrafast Speed, Dark Current Suppression, and Self-Powered Enhancement in TiO 2-Based Ultraviolet Photodetectors by Organic Layers and Ag Nanowires Regulation. J Phys Chem Lett 2021; 12:9912-9918. [PMID: 34612650 DOI: 10.1021/acs.jpclett.1c03090] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
TiO2-based photodetectors (PDs) have been hotspots in recent years for their excellent thermal stabilities and optoelectronic performance under ultraviolet (UV) light. However, the high dark current caused by defects in TiO2 films has limited the detectivity (D) of these PDs. Here, the dark current of a TiO2-based PD was effectively reduced by 3 magnitudes (from 0.1 mA to 20 nA) and D was increased to 1.2 × 1014 Jones by introducing PC71BM. The TiO2/PC71BM heterojunction also made the PD self-powered, and by further introducing an interface layer of PEDOT:PSS and finely optimizing the electrode Ag nanowires (Ag NWs), the self-powered responsivity (R) was increased to 33 mA/W. Ultrafast rise/decay times (129 ns/1 ms at -1 V and 0.06 s/<1 μs at 0 V) were achieved. This work successfully applied an organic-inorganic heterojunction, an organic interface, and Ag NWs to suppress the dark current and enhance the self-powered photocurrent/R of inorganic PDs, providing a feasible strategy in high-performance UV PDs' design.
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Affiliation(s)
- Tingting Yan
- Department of Materials Science, Fudan University, Shanghai 200433, P. R. China
| | - Sa Cai
- Department of Materials Science, Fudan University, Shanghai 200433, P. R. China
| | - Zijun Hu
- Department of Materials Science, Fudan University, Shanghai 200433, P. R. China
| | - Ziqing Li
- Department of Materials Science, Institute of Optoelectronics, Fudan University, Shanghai 200433, P. R. China
| | - Xiaosheng Fang
- Department of Materials Science, Institute of Optoelectronics, Fudan University, Shanghai 200433, P. R. China
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70
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Wang Z, Zheng W, Hu Q, Lin S, Wu Y, Ye D. Pt/(InGa) 2O 3/ n-Si Heterojunction-Based Solar-Blind Ultraviolet Photovoltaic Detectors with an Ideal Absorption Cutoff Edge of 280 nm. ACS APPLIED MATERIALS & INTERFACES 2021; 13:44568-44576. [PMID: 34514792 DOI: 10.1021/acsami.1c13006] [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
Ga2O3 is a popular material for research on solar-blind ultraviolet detectors. However, its absorption cutoff edge is 253 nm, which is not an ideal cutoff edge of 280 nm. In this work, by adjusting the ratio of In/Ga elements in the films, a high-quality (In0.11Ga0.89)2O3 film with an absorption cutoff edge of 280 nm was obtained, which owns a uniform surface and preferred orientation. On this basis, a solar-blind ultraviolet photovoltaic detector was constructed based on the Pt/(In0.11Ga0.89)2O3/n-Si heterojunction. When the device is exposed to 254 nm UV light, its open-circuit voltage (VOC) can reach 354 mV. Under 0 V bias, the device has a responsivity of 0.48 mA/W with a rise time of 0.47 s and a decay time of 0.37 s; under -7 V bias, the device achieves a responsivity of 16.96 mA/W with a rise time of 0.17 s and a decay time of 0.33 s. The spectral response characteristics of the device show that it has a selective response to solar-blind ultraviolet light (cutoff wavelength is 280 nm) with a rejection ratio (R254 nm/R310 nm), which is greater by more than two orders of magnitude. This work provides a good reference for adjusting the band gap of Ga2O3-based films and broadening their application fields.
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Affiliation(s)
- Zhao Wang
- College of Mechanical and Electrical Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Wei Zheng
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials, Sun Yat-sen University, Guangzhou 510275, China
| | - Qichang Hu
- College of Mechanical and Electrical Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
- National Engineering Research Center for Optoelectronic Crystalline Materials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Shiyan Lin
- College of Mechanical and Electrical Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Yibing Wu
- College of Mechanical and Electrical Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Dapeng Ye
- College of Mechanical and Electrical Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
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Li C, Zhu J, Du W, Huang Y, Xu H, Zhai Z, Zou G. The Photodetectors Based on Lateral Monolayer MoS 2/WS 2 Heterojunctions. NANOSCALE RESEARCH LETTERS 2021; 16:123. [PMID: 34331611 PMCID: PMC8325733 DOI: 10.1186/s11671-021-03581-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 07/21/2021] [Indexed: 06/13/2023]
Abstract
Monolayer transition metal dichalcogenides (TMDs) show promising potential for next-generation optoelectronics due to excellent light capturing and photodetection capabilities. Photodetectors, as important components of sensing, imaging and communication systems, are able to perceive and convert optical signals to electrical signals. Herein, the large-area and high-quality lateral monolayer MoS2/WS2 heterojunctions were synthesized via the one-step liquid-phase chemical vapor deposition approach. Systematic characterization measurements have verified good uniformity and sharp interfaces of the channel materials. As a result, the photodetectors enhanced by the photogating effect can deliver competitive performance, including responsivity of ~ 567.6 A/W and detectivity of ~ 7.17 × 1011 Jones. In addition, the 1/f noise obtained from the current power spectrum is not conductive to the development of photodetectors, which is considered as originating from charge carrier trapping/detrapping. Therefore, this work may contribute to efficient optoelectronic devices based on lateral monolayer TMD heterostructures.
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Affiliation(s)
- Caihong Li
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, People's Republic of China
| | - Juntong Zhu
- the College of Energy, Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, 215006, People's Republic of China
| | - Wen Du
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, People's Republic of China
| | - Yixuan Huang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, People's Republic of China
| | - Hao Xu
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 610054, People's Republic of China.
- the State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, People's Republic of China.
| | - Zhengang Zhai
- the 36th Research Institute of China Electronics Technology Group Corporation, Jiaxing, 314033, People's Republic of China
| | - Guifu Zou
- the College of Energy, Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, 215006, People's Republic of China.
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