Phosphorus-Doped p-Type ZnS Nanowires and their Photodetecting Applications Based on Device Construction

Abstract:

Phosphorus-doped p-type ZnS NWs were synthesized by chemical deposition method. The as-synthesized NWs shows obvious p-type conduction with a hole concentration of 8.35 × 10¹⁷ cm^-3. ZnS-Si core-shell nanoheterojunction was fabricated by depositing Si thin film on the surface of ZnS NWs through a sputtering method. The core-shell nanostructure exhibited excellent photoresponse to white light and UV light. Under UV light illumination, a high performance with a responsibility of ~ 0.14 × 10³ AW^-1, a gain of ~ 0.69 × 10³ and a detectivity of ~ 1.2 × 10¹⁰ cmHz^1/2W^-1 were obtained based on the ZnS-Si core-shell nanoheterojunction. This new nanostructure is expected to play an important role in the next-generation optoelectronic devices.

• Periodical: Journal of Nano Research (Volume 42)
• Pages: 65-72
• DOI: https://doi.org/10.4028/www.scientific.net/JNanoR.42.65
• Online since: July 2016
• Authors: Xi Wei Zhang*, Dan Hu, Dan Meng, Zhen Jie Tang, Zhi Wang
• Keywords: Core-Shell, Nano-Heterojunction, Nanowires, Photodetector, ZnS

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