Growth mechanism and characterization of rose-like microspheres and hexagonal microdisks of ZnO grown by surfactant-free solution method
Growth mechanism and characterization of rose-like microspheres and hexagonal microdisks of ZnO grown by surfactant-free solution method
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DOI：
10.1016/j.jiec.2008.09.001
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发表时间：
2008-09-01
影响因子：
6.1
通讯作者：
Hahn, Y. B.
中科院分区：
文献类型：
--
作者：
Ahsanulhaq, Q.;Kim, J. H.;Hahn, Y. B.
由氧化锌 (ZnO) 纳米片和六角形微盘制成的高度结晶的玫瑰状微球分别在 Si 和 ZnO/Si 基板上生长，在 90 摄氏度的溶液中，不使用任何表面活性剂。与微球相比，微盘具有更少的缺陷和更好的光学性能，并且在 378 nm 处表现出强烈的紫外线发射。提出了一种基于极化 ZnO 纳米结构和基底之间的静电力以及表面能的可能的生长机制，用于微球和微盘的生长。 (C) 2008 年由 Elsevier B.V. 代表韩国工业与工程化学学会出版。
Highly crystalline rose-like microspheres made of nanosheets and hexagonal microdisks of zinc oxide (ZnO) were grown on Si and ZnO/Si substrates, respectively in solution at 90 degrees C without the use of any surfactants. The microdisks had lower defects and better optical properties than the microspheres and showed a strong UV emission at 378 nm. A possible growth mechanism based on the electrostatic forces between polarized ZnO nanostructures and substrates and the surface energy was proposed for the growth of microspheres and microdisks. (C) 2008 Published by Elsevier B.V. on behalf of The Korean Society of Industrial and Engineering Chemistry.