Stress evolution and its effects on detection performance of self-rolled quantum well infrared detector
Author:
Affiliation:

1.College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China;2.Department of Materials Science, State Key Laboratory of ASIC and Systems, Fudan University, Shanghai 200433,,China;3.Shanghai Engineering Technology Research Centre of Deep Offshore Material, Shanghai Maritime University, Shanghai 201306, China;4.State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083,China

Clc Number:

TN21

Fund Project:

National Natural Science Foundation of China (61805042, 61975035, U1632115), Shanghai Project (20ZR1423400, 18ZR1405100, 17JC1401700, 19XD1400600)

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    In this study, we investigate the stress evolution and its effects on detection performance of self-rolled quantum well infrared detector. It is found that tensile stress can move the energy level of conduction band up, while compressive stress moves it down. The band movement of self-rolled film with double quantum wells depends on the change of resultant stresses in the two quantum wells. The rolled-up sample can effectively transform the stress change into strain, so as to weaken the impact of ambient temperature and enhance the stability of infrared devices. The wrinkled film has higher compressive stress compared with the rolled-up sample, which results in lower responsivity. When the same bias voltage is applied, the voltage responsivity of the rolled-up sample is about 2.5 times higher than that of the wrinkled sample.

    Reference
    Related
    Cited by
Get Citation

ZHANG Fei, HUANG Gao-Shan, NIE Xiao-Fei, ZHEN Hong-Lou, MEI Yong-Feng, FAN Run-Hua. Stress evolution and its effects on detection performance of self-rolled quantum well infrared detector[J]. Journal of Infrared and Millimeter Waves,2021,40(1):19~24

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:July 13,2020
  • Revised:January 07,2021
  • Adopted:August 10,2020
  • Online: January 06,2021
  • Published: