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나노 구조 물리 연구단
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Controlled synthesis of ZnO spheres using structure directing agents

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Title
Controlled synthesis of ZnO spheres using structure directing agents
Author(s)
Foe, Kurniawan; Namkoong, Gon; Abdel-Fattah, Tarek M.; Baumgart, Helmut; Mun Seok Jeong; Lee, Dong-Seon
Publication Date
2013-05
Journal
THIN SOLID FILMS, v.534, no., pp.76 - 82
Publisher
ELSEVIER SCIENCE SA
Abstract
Controlled liquid phase deposition has been developed for fabricating zinc oxide (ZnO) nano/microspheres using a mixture of precursor solution of zinc acetate dihydrate, ammonium hydroxide, and structure directing agents (SDAs) such as ethanol and urea. We found that ZnO spheres can be formed when the SDAs are optimized with the proper pH values. At pH values less than 12, an anisotropic growth of ZnO flowers and rod structures was produced with/without SDAs. On the contrary, at a pH value of 12 the directional growth of ZnO was absolutely controlled and an isotropic growth of ZnO spheres was developed with the presence of SDAs. We also found that the volume ratio of ethanol and urea in the solution was a key factor to modulate the uniform size distribution and diameter of the ZnO spheres from nanometer to micrometer range. © 2013 Elsevier B.V.
URI
https://pr.ibs.re.kr/handle/8788114/1344
ISSN
0040-6090
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
Files in This Item:
301_Thin Solid Films 534 (2013) 76&_8211.pdfDownload

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