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Wang D, Ling S, Hou P. Enhanced Performance of a Self-Powered Au/WSe 2/Ta 2NiS 5/Au Heterojunction by the Interfacial Pyro-phototronic Effect. ACS APPLIED MATERIALS & INTERFACES 2024; 16:48576-48584. [PMID: 39207265 DOI: 10.1021/acsami.4c10005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
The growing need for wearable electronics and self-powered electronic devices has driven the successful development of self-powered two-dimensional (2D) photodetectors using the photovoltaic effect of Schottky and p-n junctions. However, there is an urgent need to develop multifunctional photodetectors capable of harvesting energy from different sources to overcome their limitations in efficiency and cost. While the pyro-phototronic effect has been shown to effectively influence optoelectronic processes in heterojunctions, the number of reported two-dimensional heterojunctions exhibiting interfacial pyroelectricity is still limited, and the responsivity and detectivity based on such heterojunctions tend to be low. In this study, a photodetector based on an Au/WSe2/Ta2NiS5/Au heterojunction was designed and fabricated. By harnessing the interfacial pyro-phototronic effect arising from the built-in electric fields at the Au/WSe2 Schottky junction and WSe2/Ta2NiS5 heterojunction, the photodetector exhibits a broadband response range of 405-1064 nm, with approximately 12 times enhancement in output current compared to solely relying on the photovoltaic effect. Under 660 nm light irradiation, the self-powered photodetector exhibits a responsivity of 121 mA/W, an external quantum efficiency of 22.64%, and a specific detectivity of 2 × 1012 Jones. Notably, its pyroelectric coefficient exceeds 8 × 103 μC·m-2·K-1. These findings pave the way for effectively detecting weak light and temperature variation while presenting a new strategy for developing high-performance photodetectors utilizing the interfacial pyro-phototronic effect.
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Affiliation(s)
- Danzhi Wang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Shiyu Ling
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Pengfei Hou
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
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Ma Y, Liang H, Guan X, Xu S, Tao M, Liu X, Zheng Z, Yao J, Yang G. Two-dimensional layered material photodetectors: what could be the upcoming downstream applications beyond prototype devices? NANOSCALE HORIZONS 2024. [PMID: 39046195 DOI: 10.1039/d4nh00170b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
With distinctive advantages spanning excellent flexibility, rich physical properties, strong electrostatic tunability, dangling-bond-free surface, and ease of integration, 2D layered materials (2DLMs) have demonstrated tremendous potential for photodetection. However, to date, most of the research enthusiasm has been merely focused on developing novel prototype devices. In the past few years, researchers have also been devoted to developing various downstream applications based on 2DLM photodetectors to contribute to promoting them from fundamental research to practical commercialization, and extensive accomplishments have been realized. In spite of the remarkable advancements, these fascinating research findings are relatively scattered. To date, there is still a lack of a systematic and profound summarization regarding this fast-evolving domain. This is not beneficial to researchers, especially researchers just entering this research field, who want to have a quick, timely, and comprehensive inspection of this fascinating domain. To address this issue, in this review, the emerging downstream applications of 2DLM photodetectors in extensive fields, including imaging, health monitoring, target tracking, optoelectronic logic operation, ultraviolet monitoring, optical communications, automatic driving, and acoustic signal detection, have been systematically summarized, with the focus on the underlying working mechanisms. At the end, the ongoing challenges of this rapidly progressing domain are identified, and the potential schemes to address them are envisioned, which aim at navigating the future exploration as well as fully exerting the pivotal roles of 2DLMs towards the practical optoelectronic industry.
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Affiliation(s)
- Yuhang Ma
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science & Engineering, Sun Yat-sen University, Guangzhou 510275, Guangdong, P. R. China.
- Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Sun Yat-sen University, Guangzhou 510275, Guangdong, P. R. China
| | - Huanrong Liang
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science & Engineering, Sun Yat-sen University, Guangzhou 510275, Guangdong, P. R. China.
- Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Sun Yat-sen University, Guangzhou 510275, Guangdong, P. R. China
| | - Xinyi Guan
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science & Engineering, Sun Yat-sen University, Guangzhou 510275, Guangdong, P. R. China.
| | - Shuhua Xu
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science & Engineering, Sun Yat-sen University, Guangzhou 510275, Guangdong, P. R. China.
| | - Meiling Tao
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science & Engineering, Sun Yat-sen University, Guangzhou 510275, Guangdong, P. R. China.
| | - Xinyue Liu
- Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Institute of Nanophotonics, Jinan University, Guangzhou 511443, China.
| | - Zhaoqiang Zheng
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, Guangdong, P. R. China.
| | - Jiandong Yao
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science & Engineering, Sun Yat-sen University, Guangzhou 510275, Guangdong, P. R. China.
- Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Sun Yat-sen University, Guangzhou 510275, Guangdong, P. R. China
| | - Guowei Yang
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science & Engineering, Sun Yat-sen University, Guangzhou 510275, Guangdong, P. R. China.
- Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Sun Yat-sen University, Guangzhou 510275, Guangdong, P. R. China
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Hou X, Liu Y, Bai S, Yu S, Huang H, Yang K, Li C, Peng Z, Zhao X, Zhou X, Xu G, Long S. Pyroelectric Photoconductive Diode for Highly Sensitive and Fast DUV Detection. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2314249. [PMID: 38564779 DOI: 10.1002/adma.202314249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 02/29/2024] [Indexed: 04/04/2024]
Abstract
Detecting high-energy photons from the deep ultraviolet (DUV) to X-rays is vital in security, medicine, industry, and science. Wide bandgap (WBG) semiconductors exhibit great potential for detecting high-energy photons. However, the implementation of highly sensitive and high-speed detectors based on WBG semiconductors has been a huge challenge due to the inevitable deep level traps and the lack of appropriate device structure engineering. Here, a sensitive and fast pyroelectric photoconductive diode (PPD), which couples the interface pyroelectric effect with the photoconductive effect based on tailored polycrystal Ga-rich GaOx (PGR-GaOx) Schottky photodiode, is first proposed. The PPD device exhibits ultrahigh detection performance for DUV and X-ray light. The responsivity for DUV light and sensitivity for X-ray are up to 104 A W-1 and 105 µC Gyair -1 cm-2, respectively. Especially, the interface pyroelectric effect induced by polar symmetry in the depletion region of the PGR-GaOx can significantly improve the response speed of the device by 105 times. Furthermore, the potential of the device is demonstrated for imaging enhancement systems with low power consumption and high sensitivity. This work fully excavates the potential of the pyroelectric effect for detectors and provides a novel design strategy to achieve sensitive and high-speed detectors.
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Affiliation(s)
- Xiaohu Hou
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
| | - Yan Liu
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
| | - Shiyu Bai
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
| | - Shunjie Yu
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
| | - Hong Huang
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
| | - Kai Yang
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
| | - Chen Li
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
| | - Zhixin Peng
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
| | - Xiaolong Zhao
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
| | - Xuanze Zhou
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
| | - Guangwei Xu
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
| | - Shibing Long
- School of Microelectronics, University of Science and Technology of China, Hefei, 230026, China
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Cao H, Hu T, Zhang J, Zhao D, Chen Y, Wang X, Yang J, Zhang Y, Tang X, Bai W, Shen H, Wang J, Chu J. Electrically Tunable Multiple-Effects Synergistic and Boosted Photoelectric Performance in Te/WSe 2 Mixed-Dimensional Heterojunction Phototransistors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2400018. [PMID: 38502873 PMCID: PMC11165519 DOI: 10.1002/advs.202400018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/19/2024] [Indexed: 03/21/2024]
Abstract
Mix-dimensional heterojunctions (MDHJs) photodetectors (PDs) built from bulk and 2D materials are the research focus to develop hetero-integrated and multifunctional optoelectronic sensor systems. However, it is still an open issue for achieving multiple effects synergistic characteristics to boost sensitivity and enrich the prospect in artificial bionic systems. Herein, electrically tunable Te/WSe2 MDHJs phototransistors are constructed, and an ultralow dark current below 0.1 pA and a large on/off rectification ratio of 106 is achieved. Photoconductive, photovoltaic, and photo-thermoelectric conversions are simultaneously demonstrated by tuning the gate and bias. By these synergistic effects, responsivity and detectivity respectively reach 13.9 A W-1 and 1.37 × 1012 Jones with 400 times increment. The Te/WSe2 MDHJs PDs can function as artificial bionic visual systems due to the comparable response time to those of the human visual system and the presence of transient positive and negative response signals. This work offers an available strategy for intelligent optoelectronic devices with hetero-integration and multifunctions.
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Affiliation(s)
- Hechun Cao
- Key Laboratory of Polar Materials and Devices (MOE) and Department of ElectronicsEast China Normal UniversityShanghai200241P. R. China
- State Key Laboratory of Infrared PhysicsShanghai Institute of Technical PhysicsChinese Academy of SciencesNo.500 Yutian RoadShanghai200083P. R. China
| | - Tao Hu
- Key Laboratory of Polar Materials and Devices (MOE) and Department of ElectronicsEast China Normal UniversityShanghai200241P. R. China
- State Key Laboratory of Infrared PhysicsShanghai Institute of Technical PhysicsChinese Academy of SciencesNo.500 Yutian RoadShanghai200083P. R. China
| | - Jiyue Zhang
- Key Laboratory of Polar Materials and Devices (MOE) and Department of ElectronicsEast China Normal UniversityShanghai200241P. R. China
| | - Dongyang Zhao
- Key Laboratory of Polar Materials and Devices (MOE) and Department of ElectronicsEast China Normal UniversityShanghai200241P. R. China
- State Key Laboratory of Infrared PhysicsShanghai Institute of Technical PhysicsChinese Academy of SciencesNo.500 Yutian RoadShanghai200083P. R. China
| | - Yan Chen
- State Key Laboratory of Infrared PhysicsShanghai Institute of Technical PhysicsChinese Academy of SciencesNo.500 Yutian RoadShanghai200083P. R. China
- Shanghai Frontier Base of Intelligent Optoelectronics and PerceptionInstitute of OptoelectronicsFudan UniversityShanghai200433P. R. China
| | - Xudong Wang
- State Key Laboratory of Infrared PhysicsShanghai Institute of Technical PhysicsChinese Academy of SciencesNo.500 Yutian RoadShanghai200083P. R. China
| | - Jing Yang
- Key Laboratory of Polar Materials and Devices (MOE) and Department of ElectronicsEast China Normal UniversityShanghai200241P. R. China
| | - Yuanyuan Zhang
- Key Laboratory of Polar Materials and Devices (MOE) and Department of ElectronicsEast China Normal UniversityShanghai200241P. R. China
| | - Xiaodong Tang
- Key Laboratory of Polar Materials and Devices (MOE) and Department of ElectronicsEast China Normal UniversityShanghai200241P. R. China
- Collaborative Innovation Center of Extreme OpticsShanxi UniversityTaiyuanShanxi030006P. R. China
| | - Wei Bai
- Key Laboratory of Polar Materials and Devices (MOE) and Department of ElectronicsEast China Normal UniversityShanghai200241P. R. China
| | - Hong Shen
- State Key Laboratory of Infrared PhysicsShanghai Institute of Technical PhysicsChinese Academy of SciencesNo.500 Yutian RoadShanghai200083P. R. China
| | - Jianlu Wang
- State Key Laboratory of Infrared PhysicsShanghai Institute of Technical PhysicsChinese Academy of SciencesNo.500 Yutian RoadShanghai200083P. R. China
- Shanghai Frontier Base of Intelligent Optoelectronics and PerceptionInstitute of OptoelectronicsFudan UniversityShanghai200433P. R. China
- Frontier Institute of Chip and SystemFudan UniversityShanghai200433P. R. China
| | - Junhao Chu
- State Key Laboratory of Infrared PhysicsShanghai Institute of Technical PhysicsChinese Academy of SciencesNo.500 Yutian RoadShanghai200083P. R. China
- Shanghai Frontier Base of Intelligent Optoelectronics and PerceptionInstitute of OptoelectronicsFudan UniversityShanghai200433P. R. China
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Ma Y, Du Y, Wu W, Shi Z, Meng X, Yuan X. Synthesis and Characterization of 2D Ternary Compound TMD Materials Ta 3VSe 8. MICROMACHINES 2024; 15:591. [PMID: 38793164 PMCID: PMC11123142 DOI: 10.3390/mi15050591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/26/2024]
Abstract
Two-dimensional (2D) transition metal dichalcogenides (TMDs) are garnering considerable scientific interest, prompting discussion regarding their prospective applications in the fields of nanoelectronics and spintronics while also fueling groundbreaking discoveries in phenomena such as the fractional quantum anomalous Hall effect (FQAHE) and exciton dynamics. The abundance of binary compound TMDs, such as MX2 (M = Mo, W; X = S, Se, Te), has unlocked myriad avenues of exploration. However, the exploration of ternary compound TMDs remains relatively limited, with notable examples being Ta2NiS5 and Ta2NiSe5. In this study, we report the synthesis of a new 2D ternary compound TMD materials, Ta3VSe8, employing the chemical vapor transport (CVT) method. The as-grown bulk crystal is shiny and can be easily exfoliated. The crystal quality and structure are verified by X-ray diffraction (XRD), while the surface morphology, stoichiometric ratio, and uniformity are determined by scanning electron microscopy (SEM). Although the phonon property is found stable at different temperatures, magneto-resistivity evolves. These findings provide a possible approach for the realization and exploration of ternary compound TMDs.
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Affiliation(s)
- Yuanji Ma
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China
| | - Yuhan Du
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China
| | - Wenbin Wu
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China
| | - Zeping Shi
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China
| | - Xianghao Meng
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China
| | - Xiang Yuan
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China
- Shanghai Center of Brain-Inspired Intelligent Materials and Devices, Department of Electronics, East China Normal University, Shanghai 200241, China
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Zhang Q, Gu H, Guo Z, Ding K, Liu S. Quantitatively Exploring Giant Optical Anisotropy of Quasi-One-Dimensional Ta 2NiS 5. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:3098. [PMID: 38132994 PMCID: PMC10745865 DOI: 10.3390/nano13243098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 12/01/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023]
Abstract
Optical anisotropy offers a heightened degree of flexibility in shaping optical properties and designing cutting-edge devices. Quasi-one-dimensional Ta2NiS5, with giant optical anisotropy, has been used in the development of new lasers and sensors. In this research endeavor, we successfully acquired the complete dielectric tensor of Ta2NiS5, utilizing the advanced technique of Mueller matrix spectroscopic ellipsometry, enabling a rigorous quantitative assessment of its optical anisotropy. The results indicate that Ta2NiS5 demonstrates giant birefringence and dichroism, with Δnmax = 1.54 and Δkmax = 1.80. This pursuit also delves into the fundamental underpinnings of this optical anisotropy, drawing upon a fusion of first-principles calculations and critical points analysis. The anisotropy of Ta2NiS5 arises from differences in optical transitions in different directions and is shown to be due to van Hove singularities without exciton effects. Its giant optical anisotropy is expected to be useful in the design of novel optical devices, and the revelation of the physical mechanism facilitates the modulation of its optical properties.
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Affiliation(s)
- Qihang Zhang
- State Key Laboratory of Intelligent Manufacturing and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; (Q.Z.); (Z.G.); (S.L.)
| | - Honggang Gu
- State Key Laboratory of Intelligent Manufacturing and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; (Q.Z.); (Z.G.); (S.L.)
- Guangdong Provincial Key Laboratory of Manufacturing Equipment Digitization, Guangdong HUST Industrial Technology Research Institute, Dongguan 523003, China
- Optics Valley Laboratory, Wuhan 430074, China
| | - Zhengfeng Guo
- State Key Laboratory of Intelligent Manufacturing and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; (Q.Z.); (Z.G.); (S.L.)
| | - Ke Ding
- Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan 430078, China;
| | - Shiyuan Liu
- State Key Laboratory of Intelligent Manufacturing and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; (Q.Z.); (Z.G.); (S.L.)
- Optics Valley Laboratory, Wuhan 430074, China
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Wang Y, Liu C, Qian H, Liu H, Han L, Wang X, Gao W, Li J. Light-triggered 2D electron gas in a GaN-based HEMT with sandwiched p-GaN layers. OPTICS LETTERS 2023; 48:4376-4379. [PMID: 37582036 DOI: 10.1364/ol.499084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 07/25/2023] [Indexed: 08/17/2023]
Abstract
In this work, a p-n junction-coupled metal-insulator-semiconductor (MIS) normally-off high-electron-mobility transistor (HEMT) UVPD is proposed. A two-dimensional electron gas (2DEG) at the AlN/U-GaN interface is entirely depleted with a dark current of 1.97 × 10-11 A because of the design of the sandwiched p-GaN layers. Under 365 nm illumination, the 2DEG is light triggered at Vds = 1 V with a high light on/off ratio of over 107 at a light power density of 286.39 mW·cm-2. Meanwhile, it exhibits fast rise and decay times of 248.39 and 584.79 µs, respectively. Moreover, a maximum responsivity (R) of 2.33 A/W, a maximum EQE of 793%, and a D* of 1.08 × 1013 Jones are obtained at Vds = 1 V. This can be attributed to the built-in electric fields in the configuration, which accelerate the flow of photogenerated carriers into the AlN/U-GaN channel. Additionally, the device showcases stable durability, repeatability, and a low driving voltage, making it highly suitable for applications in UV communication and space exploration.
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