Abstract

In this paper, the electrical characteristics of a 3-aminorhodanine (aRh)/n-gallium arsenide (n-GaAs) heterostructure were investigated in dark and under various illumination conditions. Although the structure shows a low rectifying rate, the photocurrent in both the forward and reverse biasing increases with increasing illumination intensity. The photodiode exhibits a large detectivity (the capability of detecting visible light), approaching $3.9\times {10}^{11}$ Jones at room temperature. On illumination with light ($100\mathrm{mW}/{\mathrm{cm}}^2$), the current value in the aRh/n-GaAs heterostructure is $2.8\times {10}^5$ times, when compared to its dark value at zero applied voltage. The obtained responsivity value at the bias of 2 V and under the illumination intensity of $100\mathrm{mW}/{\mathrm{cm}}^2$ is 0.16 A/W, which is high for any organic–inorganic hybrid photodiode. The photocurrent-to-dark-current ratio is $6.5\times {10}^4$. Results show that an aRh/n-GaAs self-powered photodiode introduces new opportunities for dynamic systems needing partially low or zero external energy inputs.

© 2018 Optical Society of America

High performance blue light detector based on ZnO nanowire arrays

Yanru Xie, Hefu Li, Dong Zhang, Qingru Wang, and Liqiang Zhang
Appl. Opt. 58(5) 1242-1245 (2019)

Graphene/h-BN/GaAs sandwich diode as solar cell and photodetector

Xiaoqiang Li, Shisheng Lin, Xing Lin, Zhijuan Xu, Peng Wang, Shengjiao Zhang, Huikai Zhong, Wenli Xu, Zhiqian Wu, and Wei Fang
Opt. Express 24(1) 134-145 (2016)

Broadband photoresponse and rectification of novel graphene oxide/n-Si heterojunctions

Rishi Maiti, Santanu Manna, Anupam Midya, and Samit K Ray
Opt. Express 21(22) 26034-26043 (2013)

High-performance visible−near-infrared photodetector based on the N2200/Sb₂Se₃ nanorod arrays organic-inorganic hybrid heterostructure

Haiya Ma, Yusong Zhang, Yanjun Duan, Mingxin Hu, Yiran Zhang, Lixin Wang, Yingnan Guo, Zhiqiang Li, and Lin Yang
Opt. Express 31(26) 43057-43066 (2023)

Self-powered photodetector based on a CsPbBr₃/n-Si Schottky junction

Feng Hua, Xin Du, Zhenyu Huang, Yiting Gu, Jianfeng Wen, Fuchi Liu, Junxue Chen, and Tao Tang
J. Opt. Soc. Am. B 41(1) 55-61 (2024)