Structural properties and growth mechanism of flower-like ZnO structures obtained by simple solution method

被引：82

作者：

Ahsanulhaq, Q. ^{[1
]}

Kim, S. H. ^{[1
]}

Kim, J. H. ^{[1
]}

Hahn, Y. B. ^{[1
]}

机构：

[1] Chonbuk Natl Univ, Sch Semicond & Chem Engn, Ctr Future Energy Mat & Devices BK21, Chonju 561756, South Korea

来源：

MATERIALS RESEARCH BULLETIN | 2008年 / 43卷 / 12期

关键词：

Nanostructures; Chemical synthesis; X-ray diffraction; Optical properties;

D O I：

10.1016/j.materresbull.2008.01.021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Flower-shaped zinc oxide (ZnO) structures have been synthesized in the reaction of aqueous solution of zinc nitrate and NaOH at 90 degrees C. To examine the morphology of ZnO nanostructures, time-dependent experiments Were Carried out. Detailed structural observation showed that the flower-like structures consist of triangular-shaped leaves, having sharpened tips with wider bases. Photoluminescene spectrum measured at room temperature show a sharp UV emission at 381 nm and a strong, and broad green emission at 480-750 nm attributed to structural defects. A possible growth mechanism for the formation of flower-shaped ZnO structures is discussed in detail. (C) 2008 Elsevier Ltd. All rights reserved.

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页码：3483 / 3489

页数：7

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