Synthesis and optical properties of nanometer to micrometer wide hexagonal cones and columns of ZnO

被引：52

作者：

Ghoshal, Tandra ^{[1
]}

Kar, Soumitra ^{[1
]}

Chaudhuri, Subhadra ^{[1
]}

机构：

[1] Indian Assoc Cultivat Sci, Dept Mat Sci, Kolkata 700032, W Bengal, India

来源：

JOURNAL OF CRYSTAL GROWTH | 2006年 / 293卷 / 02期

关键词：

scanning and transmission electron microscopy; photoluminescence; solvothermal process; nanocones; nanorod; zinc oxide;

D O I：

10.1016/j.jcrysgro.2006.06.002

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Hexagonal cones and columns of ZnO were synthesized by solvothermal process with their diameters ranging from the nanometer to micrometer scale. All the nano/micro structures were perfectly single crystalline. Morphological control over the products was achieved by varying the composition of the ethanol-water system used as the solvent as well as its pH level. The ZnO nano/micro crystals were found to have wurtzite crystal structure. The optical absorbance and photoluminescence spectra of all the samples showed excitonic character at room temperature indicating excellent crystal quality of the products. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：438 / 446

页数：9

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