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http://dx.doi.org/10.4313/JKEM.2009.22.11.987

Morphology Control of ZnO Nanorods on ITO Substrates in Solution Processes  

Shin, Kyung-Sik (성균관대학교 신소재공학부)
Lee, Sam-Dong (금오공과대학교 신소재시스템공학부)
Jeong, Soon-Wook (금오공과대학교 신소재시스템공학부)
Lee, Sang-Woo (금오공과대학교 신소재시스템공학부)
Kim, Sang-Woo (성균관대학교 신소재공학부)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.22, no.11, 2009 , pp. 987-991 More about this Journal
Abstract
We report growth of vertically well-aligned zinc oxide (ZnO) nanorods on indium-tin oxide (ITO)/glass substrates using a simple aqueous solution method at low temperature via control of the ZnO seed layer morphology. ZnO nanoparticles acting as seeds are pre-coated on ITO-coated glass substrates. by spin coating to control distribution and density of the ZnO seed nanoparticles. ZnO nanorods were synthesized on the seed-coated substrates in a dipping process into a main growth solution. It was found that the alignment of ZnO nanorods can be effectively manipulated by the spin-coating speed of the seed layer. A grazing incidence X-ray diffraction pattern shows that the ZnO seed layer prepared using the higher spin-coating speed is of uniform seed distribution and a flat surface, resulting in the vertical growth of ZnO nanorods aligned toward the [0001] direction in the main growth process.
Keywords
ZnO; Nanorod; Solution process; ITO; Morphology control;
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