Synthesis of ZnO nanoparticles by hydrothermal method

被引：170

作者：

Aneesh, P. M. ^{[1
]}

Vanaja, K. A. ^{[1
]}

Jayaraj, M. K. ^{[1
]}

机构：

[1] Cochin Univ Sci & Technol, Optoelect Devices Lab, Cochin 682022, Kerala, India

来源：

NANOPHOTONIC MATERIALS IV | 2007年 / 6639卷

关键词：

hydrothermal; ZnO; band gap; particle size; photoluminescent emission;

D O I：

10.1117/12.730364

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Stable, OH free zinc oxide (ZnO) nanoparticles were synthesized by hydrothermal method by varying the growth temperature and concentration of the precursors. The formation of ZnO nanoparticles were confirmed by x-ray diffraction (XRD), transmission electron microscopy (TEM) and selected area electron diffraction (SAED) studies. The average particle size have been found to be about 7-24 nm and the compositional analysis is done with inductively coupled plasma atomic emission spectroscopy (ICP-AES). Diffuse reflectance spectroscopy (DRS) results shows that the band gap of ZnO nanoparticles is blue shifted with decrease in particle size. Photoluminescence properties of ZnO nanoparticles at room temperature were studied and the green photoluminescent emission from ZnO nanoparticles can originate from the oxygen vacancy or ZnO interstitial related defects.

引用

页数：9

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