Improving the device performance of CuO-based self-powered photodetectors by cobalt doping

被引:2
|
作者
Aslan E. [1 ]
机构
[1] Harran University, Department of Physics, Faculty of Arts and Sciences, Sanliurfa
关键词
Copper oxide; CuO; Photodetector; Self-powered;
D O I
10.1016/j.jpcs.2024.112032
中图分类号
学科分类号
摘要
CuO is a promising semiconductor for visible region optoelectronic applications with its suitable bandgap. In this study, 1 % and 2 % cobalt-doped CuO films were prepared by a chemical solution method. XRD results reveal that the films crystallize in a monoclinic crystal structure. The surfaces of the samples changed from having granular structures to spherical structures, according to SEM observations. Optical measurements show that the absorption coefficients of the samples are on the order of 105 cm−1. According to the Tauc relation, the sample band gaps vary between 1.79 and 1.83 eV. The visible light photosensitivity of photodetectors prepared with FTO/TiO2/n-In2S3/p-CuO/P3HT/Ag hetero-structure increased by 520 %, from 68 to 424 with 1 % cobalt doping. In cobalt-doped photodetectors, a high-speed response was achieved with a very low rise and decay time of ∼20 m s under zero bias conditions. Furthermore, time-current measurements repeated 100 times show that the photodetectors exhibit excellent stability and repeatability. The results obtained indicate that cobalt doping significantly increases both the diode characteristic of the heterojunction structure and the device performance. © 2024 Elsevier Ltd
引用
收藏
相关论文
共 50 条
  • [1] Self-powered photodetectors: a device engineering perspective
    Goel, Varun
    Kumar, Yogesh
    Rawat, Gopal
    Kumar, Hemant
    NANOSCALE, 2024, 16 (19) : 9235 - 9258
  • [2] Enhanced performance of self-powered CuS photodetectors with Al doping and dark current suppression
    Teymori, Bahareh
    Jamali-Sheini, Farid
    Cheraghizade, Mohsen
    JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2024, 449
  • [3] A MoS2/CuO-based hybrid p-n junction for high-performance self-powered photodetection
    Kumawat, Kishan Lal
    Augustine, Pius
    Singh, Deependra Kumar
    Krupanidhi, Saluru Baba
    Nanda, Karuna Kar
    JOURNAL OF MATERIALS CHEMISTRY C, 2022, 10 (38) : 14159 - 14168
  • [4] Improving the performance of the self-powered polymer-based UV/Vis photodetectors via carbon fibers
    Havigh, Roya Shokrani
    Chenari, Hossein Mahmoudi
    Yildirim, Fatma
    Orhan, Zeynep
    Aydogan, S.
    PHYSICA SCRIPTA, 2023, 98 (01)
  • [5] High-Performance, Self-Powered Photodetectors Based on Perovskite and Graphene
    Li, Juan
    Yuan, Shihao
    Tang, Guanqi
    Li, Guijun
    Liu, Dan
    Li, Jing
    Hu, Xihong
    Liu, Yucheng
    Li, Jianbo
    Yang, Zhou
    Liu, Shengzhong Frank
    Liu, Zhike
    Gao, Fei
    Yan, Feng
    ACS APPLIED MATERIALS & INTERFACES, 2017, 9 (49) : 42779 - 42787
  • [6] Self-Powered Nanoscale Photodetectors
    Tian, Wei
    Wang, Yidan
    Chen, Liang
    Li, Liang
    SMALL, 2017, 13 (45)
  • [7] Self-powered UV photodetectors based on ZnO nanomaterials
    Ouyang, Weixin
    Chen, Jiaxin
    Shi, Zhifeng
    Fang, Xiaosheng
    APPLIED PHYSICS REVIEWS, 2021, 8 (03)
  • [8] Effective ways to enhance the performance of n-MoS2/p-CuO heterojunction based self-powered photodetectors
    Kumar, Krishan
    Yadav, Reena
    Devi, Sarita
    Singh, Preetam
    Husale, Sudhir
    Tyagi, Sachin
    Kaur, Davinder
    SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2023, 255
  • [9] High performance self-powered ultraviolet photodetectors based on electrospun gallium nitride nanowires
    Zhang, Mingxiang
    Liu, Ying
    Yang, Mengqi
    Zhang, Wen
    Zhou, Jinyuan
    Zhang, Zhenxing
    Xie, Erqing
    Pan, Xiaojun
    Li, Shibo
    APPLIED SURFACE SCIENCE, 2018, 452 : 43 - 48
  • [10] Self-powered high performance photodetectors based on CdSe nanobelt/graphene Schottky junctions
    Jin, Weifeng
    Ye, Yu
    Gan, Lin
    Yu, Bin
    Wu, Peicai
    Dai, Yu
    Meng, Hu
    Guo, Xuefeng
    Dai, Lun
    JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (07) : 2863 - 2867