Open AccessPerformance enhanced Metal‐Semiconductor‐Metal photodetector based on double‐layer ZnO nanorods
Author(s) -
Chu Lingling,
Xu Chao,
Feng Bo,
Nie Chao,
Hu Yunxue
Publication year - 2022
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/ell2.12363
Subject(s) - nanorod , photodetector , photocurrent , materials science , optoelectronics , layer (electronics) , hydrothermal circulation , semiconductor , metal , nanotechnology , chemical engineering , engineering , metallurgy
This study reports that photodetectors based on double‐layer ZnO nanorods grown on AZO seed layer by hydrothermal method. Compared with the photodetectors with single‐layer nanorods, the on/off ratio of the photodetectors with double‐layer ZnO nanorods is increased by ∼2.52 times, the photoresponsivity is increased ∼5.50 times, the sensitivity is increased ∼3.34 times and the response time was shortened by 0.97 and 6.65 s, respectively. Furthermore, the photocurrent derivative also shows that the photodetectors based on double‐layer ZnO nanorods has a faster response speed.