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- Title
Surface-dominated negative photoresponse of phosphorus-doped ZnSe nanowires and their detecting performance.
- Authors
Zhang, Xiwei; Meng, Dan; Tang, Zhenjie; Hu, Dan; Ma, Dongwei
- Abstract
Phosphorus-doped ZnSe nanowires were synthesized by using phosphorus (P) as dopant via thermal evaporation method. Their doping effect and obvious p-type conduction were confirmed through a top-gate MISFET based on individual P-doped ZnSeNW. Negative photoconductivity (the photocurrent was lower than the dark current) was found in p-type ZnSeNWs due to their surface effect. Two terminal devices based on p-type ZnSeNWs, as gas sensors, were also constructed and performed effective detecting behaviors to oxidizing gas. Furthermore, a complementary photodetector containing both n-type ZnSeNWs and p-type ZnSeNWs was first manufactured to eliminate the effects of crosstalk or false signal exist in conventional photodetectors. These results are expected to be used to develop new-type nano-devices and expand their applications.
- Subjects
ZINC selenide; PHOSPHORUS; NANOWIRES; SEMICONDUCTOR doping; NANOSTRUCTURED materials
- Publication
Journal of Materials Science: Materials in Electronics, 2016, Vol 27, Issue 11, p11463
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-016-5273-z