Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2008.11a
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- Pages.399-399
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- 2008
Artificial Control of ZnO Nanorods via Manipulation of ZnO Nanoparticle Seeds
산화아연 나노핵의 조작을 통한 산화아연 나노로드의 제어
- Shin, Kyung-Sik (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology) ;
- Lee, Sam-Dong (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology) ;
- Kim, Sang-Woo (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology)
- Published : 2008.11.06
Abstract
Synthesis and characterization of ZnO structure such as nanowires, nanorods, nanotube, nanowall, etc. have been studied to multifunctional application such as optical, nanoscale electronic and chemical devices because it has a room-temperature wide band gap of 3.37eV, large exiton binding energy(60meV) and various properties. Various synthesis methods including chemical vapor deposition (CVD), physical vapor deposition, electrochemical deposition, micro-emulsion, and hydrothermal approach have been reported to fabricate various kinds of ZnO nanostructures. But some of these synthesis methods are expensive and difficult of mass production. Wet chemical method has several advantage such as simple process, mass production, low temperature process, and low cost. In the present work, ZnO nanorods are deposited on ITO/glass substrate by simple wet chemical method. The process is perfomed by two steps. One-step is deposition of ZnO seeds and two-step is growth of ZnO nanorods on substrates. In order to form ZnO seeds on substrates, mixture solution of Zn acetate and Methanol was prepared.(one-step) Seed layers were deposited for control of morpholgy of ZnO seed layers by spin coating process because ZnO seeds is deposited uniformly by centrifugal force of spin coating. The seed-deposited samples were pre-annealed for 30min at