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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 12 — Jun. 6, 2011
  • pp: 11271–11279

ZnO-coated CuO nanowire arrays: fabrications, optoelectronic properties, and photovoltaic applications

Peng Wang, Xinhong Zhao, and Baojun Li  »View Author Affiliations


Optics Express, Vol. 19, Issue 12, pp. 11271-11279 (2011)
http://dx.doi.org/10.1364/OE.19.011271


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Abstract

We report a growth of p-CuO nanowire arrays with a simple thermal oxidation and a fabrication of nanowire-based heterojunctions by coating the p-CuO nanowire arrays in an n-ZnO layer through a thermal decomposition method. Their optoelectronic properties and photovoltaic performance were investigated. Compared with the conductance in the dark, a 154% increase in photoconductance was obtained under a white light illumination of 100 mW/cm2. The heterojunctions exhibit an obvious photocurrent increment of 0.264 mA under the illumination of 141 mW/cm2. After annealing the heterojunctions at 100°C for 25 min, a larger open-circuit voltage of 0.37 V was obtained, the short-circuit current density increase to 0.63 mA/cm2 from original 0.49 mA/cm2. The overall power conversion efficiency is 0.1%.

© 2011 OSA

OCIS Codes
(040.5350) Detectors : Photovoltaic
(160.6000) Materials : Semiconductor materials

ToC Category:
Solar Energy

History
Original Manuscript: March 31, 2011
Revised Manuscript: May 17, 2011
Manuscript Accepted: May 23, 2011
Published: May 25, 2011

Citation
Peng Wang, Xinhong Zhao, and Baojun Li, "ZnO-coated CuO nanowire arrays: fabrications, optoelectronic properties, and photovoltaic applications," Opt. Express 19, 11271-11279 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-12-11271


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