SYNTHESIS AND LUMINESCENCE PROPERTIES OFZnONANONEEDLE ARRAYS VIA ELECTRODEPOSITED METHOD

Shihua Zhao (), Huanfeng Ma, Lingling Wang, Lei Yang and Yuting Cui
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Shihua Zhao: Department of Physics and Information Engineering, Shangqiu Normal University, Shangqiu, Henan Province 476000, China;
Huanfeng Ma: Department of Physics and Information Engineering, Shangqiu Normal University, Shangqiu, Henan Province 476000, China
Lingling Wang: Key Laboratory for Micro-Nano Optoelectronic, Devices of Ministry of Education, and School of Physics and Microelectronics, Hunan University, Changsha 410082, China
Lei Yang: College of Materials Science and Engineering, Hunan University, Changsha 410082, China
Yuting Cui: Department of Physics and Information Engineering, Shangqiu Normal University, Shangqiu, Henan Province 476000, China

Surface Review and Letters (SRL), 2010, vol. 17, issue 04, 425-430

Abstract: ZnOnanoneedle arrays were obtained from the transformation ofZnC2O4precipitate, which was synthesized via electrodeposited method at room temperature. The diameter of those grownZnOnanoneedles is about 80 nm. The XRD pattern and the HRTEM image indicate that the grownZnOnanoneedles have the preferential growth toward (101) direction. The possible growth mechanism of theZnC2O4nanoneedle arrays is proposed and is different from the traditional V-L-S and V-S models. The study on the PL spectrum of thoseZnOnanoneedles shows the near band-edge emission band (379 nm) and the green emission band (510 nm). Especially, a red shift of the green emission band emerges with the increase of the annealing temperature and time.

Keywords: Electrodeposited method; nanoneedle arrays; growth mechanism; photoluminescence (PL) (search for similar items in EconPapers)
Date: 2010
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DOI: 10.1142/S0218625X10014223

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