Strain-enhanced cable-type 3D UV photodetecting of ZnO nanowires on a Ni wire by coupling of piezotronics effect and pn junction
Strain-enhanced cable-type 3D UV photodetecting of ZnO nanowires on a Ni wire by coupling of piezotronics effect and pn junction
复制标题
通过压电效应和 pn 结耦合对 Ni 线上的 ZnO 纳米线进行应变增强电缆型 3D 紫外光电检测
DOI：
10.1364/oe.22.003661
复制
发表时间：
2014-02-10
期刊：
影响因子：
3.8
通讯作者：
Gao, Yihua
中科院分区：
文献类型：
--
作者：
Chen, Jixun;Ding, Longwei;Gao, Yihua
A 3D-sensitified and strain-enhanced UV wire-photodetector has been fabricated with ZnO NWs grown on an oxidized Ni wire by chemical vapor deposition method. The photoluminescence (PL) spectra of the device shows a sharp UV peak at around 380 nm and a negligible peak at around 520 nm, which proves that the as-prepared ZnO nanowires were well-crystallized. The current-voltage (I-V) and current-time (I-T) characteristics under different rotation angles of the heterojunctions show good rectifying diode behaviors and stability under different angles which make 3D detection possible. The sensitivity of the device is enhanced by strains due to piezotronic effect of ZnO nanowires. These performances of the device demonstrates a promising approach to 3D photodetecting and strain sensing and also provide a prospective application to the development of weaving single wire into fabrics technology. (C) 2014 Optical Society of America
