Flexible infrared detectors based on p-n junctions of multi-walled carbon nanotubes.
Different types of multi-walled carbon nanotubes (CNTs), synthesized by chemical vapor deposition, are used to fabricate infrared (IR) detectors on flexible substrates based on CNT p-n junctions. It is found that this kind of detector is sensitive to infrared signals with a power density as low as 90 μW mm(-2) even at room temperature. Besides, unlike other devices, the detector with this unique structure can be bent for 100 cycles without any damage and its functionality does not degenerate once it recovers to the initial state. The results give a good reference for developing efficient, low-cost, and flexible IR detectors.
State Key Laboratory of Electronic Thin Films and Integrated Devices & Center for Information in Medicine, University of Electronic Science and Technology of China, Chengdu 610054, China. mingao@uestc.edu.cn.
Zhenlong
Z
Huang
Min
M
Gao
Zhuocheng
Z
Yan
Taisong
T
Pan
Feiyi
F
Liao
Yuan
Y
Lin