Visible-blind bipolar response photodetector based on GaN/ZnO:Ga/GaAs double heterojunctions for dual-band optoelectronic logic operation
Abstract
Bipolar response photodetectors have sparked considerable interest in optical switches, smart chips, and artificial neuroscience, but invisible ones are still scarce. Here, a visible-blind bipolar response photodetector based on GaN/ZnO:Ga/GaAs double heterojunctions is proposed. Under self-powered conditions, the designed photodetector only shows dual-band photoresponse in the ultraviolet (UV) and infrared (IR) spectrum. Specifically, originating from the absorption characteristics and suitable energy band of multilayered structures, it exhibits positive (negative) photocurrents under UV (IR) illumination. The maximum responsivity of 4.7 mA/W (−1.8 mA/W) under the UV (IR) illumination and fast response time (19.6/36.8 μ s) are achieved. Dual-band optoelectronic logic operations, including OR, AND, NOR, NOT, and NAND, are realized with a single photodetector by precisely regulating the UV and IR illumination. This work paves an approach for the development of visible-blind bipolar photodetection and all-in-one optoelectronic logic gates.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (9)
Peng Wan
Lixiang Sun
Jiadong Chen
Advanced Materials and Catalysis Group, Center of Chemistry for Frontier Technologies, State Key Laboratory of Clean Energy Utilization, Institute of Catalysis, Department of Chemistry
Fazheng Zhang
College of Physics, MIIT Key Laboratory of Aerospace Information Materials and Physics, Key Laboratory for Intelligent Nano Materials and Devices, Nanjing University of Aeronautics and Astronautics , No. 29 Jiangjun Road, Nanjing 211106,
Ruiming Dai
College of Physics, MIIT Key Laboratory of Aerospace Information Materials and Physics, Key Laboratory for Intelligent Nano Materials and Devices, Nanjing University of Aeronautics and Astronautics , No. 29 Jiangjun Road, Nanjing 211106,
Huijie Feng
College of Physics, MIIT Key Laboratory of Aerospace Information Materials and Physics, Key Laboratory for Intelligent Nano Materials and Devices, Nanjing University of Aeronautics and Astronautics , No. 29 Jiangjun Road, Nanjing 211106,
Daning Shi
College of Physics, MIIT Key Laboratory of Aerospace Information Materials and Physics, Key Laboratory for Intelligent Nano Materials and Devices, Nanjing University of Aeronautics and Astronautics , No. 29 Jiangjun Road, Nanjing 211106,
Caixia Kan
Mingming Jiang