人工晶体学报2012，Vol.41Issue(4)：911-915,5.
柠檬酸燃烧法制备Gd3Ga5O12:Eu3+纳米晶及发光性质
Synthesis and Luminescence Properties of Gd3Ga5O12∶ Eu3+ Nanocrystals by Citric Acid Combustion Method
摘要
Abstract
Gd3Ga5O12:Eu3+ nanocrystals were prepared by a combustion method,using citric acid(CA) as a fuel agent, glycol as dispersing agent. The structure, morphology and luminescence properties of the samples were studied by XRD, SEM and luminescence spectrum. The results of XRD indicated that Gd3Ga5O12: Eu3+ nanocrystals with cubic phase could be obtained. The average crystallite size could be calculated as 16-30 nm by Scherrer equation. The results of emission spectra and excitation spectra show that the main emission peaks originated from 5D0→7F1 of Eu3+; the broad excitation bands is mainly assigned to charge transfer band of Eu-O. The effects of the quantities of citric acid and glycol on crystallite size, lattice constant, emission and excitation intensity were discussed. The results show that it is favorable for the crystal growth and improvement of luminescence intensity to excess of citric acid and appropriate glycol.关键词
燃烧法/Gd3Ga5O12∶Eu3+纳米晶/激发光谱/发射光谱Key words
combustion method/ Gd3Ga5O12: Eu3+ nanocrystals/ excitation spectrum/ emission spectrum分类
数理科学引用本文复制引用
李艳红,陆海燕,张永明,张佳..柠檬酸燃烧法制备Gd3Ga5O12:Eu3+纳米晶及发光性质[J].人工晶体学报,2012,41(4):911-915,5.基金项目
辽宁省教育厅资助项目(L2011063) （L2011063）
