Ag Nanowires Enhance Performance of Self-powered Photodetector Based on Selenium Microtube/Polythiophene

被引：0
|
作者：
Chen R.-P. [1 ]
Feng S.-L. [1 ]
Zheng T.-X. [1 ]
Yu P.-P. [1 ]
Jiang Y.-F. [1 ]
机构：
[1] School of Internet of Things Engineering, Jiangnan University, Wuxi
来源：
Faguang Xuebao/Chinese Journal of Luminescence | 2022年 / 43卷 / 08期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Ag nanowires; heterojunctions; photodetector; self-powered;
D O I：
10.37188/CJL.20220078
中图分类号：
学科分类号：
摘要：
Self-powered photodetectors can meet the demands of modern optoelectronic devices for energy conservation and lightweight， but the complex process and high cost limit their further development. In this work， Se-MT/PEDOT heterojunction has been prepared by spin-coating with selenium microtube（Se-MT） and polythiophene（PEDOT）， which shows a good photoresponse at 350-700 nm and a responsivity of 8 mA/W at 500 nm without bias voltage. To enhance the responsivity， Se-MT/PEDOT/Ag-NW was prepared by adding silver nanowires（Ag-NW） on the surface of Se-MT/PEDOT heterojunction， enhancing the UV-Vis absorption to improve the photoelectric performance of the device. Compared to the Se-MT/PEDOT， the Se-MT/PEDOT/Ag-NW device shows enhanced photocurrent at the wavelength of 350-700 nm， especially under 500 nm illumination at zero bias， 800% improvement in responsivity of 65 mA/W， the on-off ratio up to 552 with 400% enhancement， obvious reduction in response time（rise/decay time of 15/28 ms）. This result indicates that the Ag-NWs modification of organic/inorganic heterojunction can be applied to the preparation of high-performance photodetectors. © 2022 Chines Academy of Sciences. All rights reserved.
引用
收藏
页码：1273 / 1280
页数：7
相关论文
共 27 条
  • [1] PARK S H, SU R T, JEONG J, Et al., 3D printed polymer photodetectors ［J］, Adv. Mater, 30, 40, (2018)
  • [2] CHEN S, LOU Z, CHEN D, An artificial flexible visual memory system based on an UV-motivated memristor ［J］, Adv. Mater, 30, 7, (2018)
  • [3] LI L, CHEN H Y, FANG Z M, An electrically modulated single-color/dual-color imaging photodetector ［J］, Adv. Mater, 32, 24, (2020)
  • [4] CHOW P C Y, SOMEYA T, Organic photodetectors for next-generation wearable electronics ［J］, Adv. Mater, 32, 15, (2020)
  • [5] XIN Y, JIANG J C, LU Y F, Self-powered broad spectral photodetector with ultrahigh responsivity and fast response based on Sb<sub>2</sub>Se<sub>3</sub>/VO<sub>2</sub> heterojunction ［J］, Adv. Mater. Interfaces, 8, 10, (2021)
  • [6] CHEN H Y, LIU K W, HU L F, New concept ultraviolet photodetectors ［J］, Mater. Today, 18, 9, pp. 493-502, (2015)
  • [7] MITRA S, PAK Y，, XIN B, Solar-blind self-powered photodetector using solution-processed amorphous core-shell gallium oxide nanoparticles ［J］, ACS Appl. Mater. Interfaces, 11, 42, pp. 38921-38928, (2019)
  • [8] ZHANG H B, ZHANG X J, LIU C, High-responsivity， high-detectivity， ultrafast topological insulator Bi<sub>2</sub>Se<sub>3</sub>/Silicon heterostructure broadband photodetectors ［J］, ACS Nano, 10, 5, pp. 5113-5122, (2016)
  • [9] CAO B, LIU Q H, ZHENG Y L, Wafer-scale InN/In<sub>2</sub>S<sub>3</sub> core-shell nanorod array for ultrafast self-powered photodetection ［J］, Adv. Funct. Mater, 32, 14, (2022)
  • [10] HOU Z D, LING C C, XUE X, Surface lattice reconstruction enhanced the photoresponse performance of a self-powered ZnO nanorod arrays/Si heterojunction photodetector ［J］, J. Mater. Chem. C, 8, 48, pp. 17440-17449, (2020)
123