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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 3 — Feb. 10, 2014
  • pp: 3661–3668

Strain-enhanced cable-type 3D UV photodetecting of ZnO nanowires on a Ni wire by coupling of piezotronics effect and pn junction

Jixun Chen, Longwei Ding, Xianghui Zhang, Liang Chu, Nishuang Liu, and Yihua Gao  »View Author Affiliations

Optics Express, Vol. 22, Issue 3, pp. 3661-3668 (2014)

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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.

© 2014 Optical Society of America

OCIS Codes
(000.2190) General : Experimental physics
(040.5160) Detectors : Photodetectors

ToC Category:

Original Manuscript: August 5, 2013
Revised Manuscript: December 29, 2013
Manuscript Accepted: February 2, 2014
Published: February 7, 2014

Jixun Chen, Longwei Ding, Xianghui Zhang, Liang Chu, Nishuang Liu, and Yihua Gao, "Strain-enhanced cable-type 3D UV photodetecting of ZnO nanowires on a Ni wire by coupling of piezotronics effect and pn junction," Opt. Express 22, 3661-3668 (2014)

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