Enhanced Fabrication Process of Zinc Oxide Nanowires for Optoelectronics

García Núñez, C. , Ruiz, E., Garcia, B.J., Pau, J.L., Garcia Marin, A. and Piqueras, J. (2012) Enhanced Fabrication Process of Zinc Oxide Nanowires for Optoelectronics. 4th International Symposium on Transparent Conductive Materials, Crete, Greece, 21-26 Oct 2012.

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Abstract

Zinc oxide (ZnO) nanowires (NWs) based ultraviolet (UV) sensors have been fabricated using different assembly techniques to form functional structures, aiming at the improvement of the performance of NW-based sensors for optoelectronic applications. NWs with diameters and lengths varying between 90–870 nm and 2–20 μm, respectively, were synthesized by controlling the growth conditions in a chemical vapor transport system. Optical properties of NWs were studied by means of transmission spectroscopy. Electrical properties of single ZnO NW-based sensors were analyzed in dark and under UV illumination (at photon wavelength of λ < 370 nm) as a function of the NW diameter. Results of the study indicate that reduction of the NW diameter below 200 nm leads to an improvement of the photocurrent (at λ < 370 nm) up to 102 μA and a decrease of the decay time around 150 s. These enhancements may help to improve the performance of ZnO-based optoelectronic devices.

Item Type:Conference or Workshop Item
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Garcia Nunez, Dr Carlos
Authors: García Núñez, C., Ruiz, E., Garcia, B.J., Pau, J.L., Garcia Marin, A., and Piqueras, J.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy

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