草酸共沉淀法制备的Y_2O_3:Eu~(2+)发光性能

摘要采用草酸共沉淀法,利用草酸盐的自氧化还原,制得了以Y2O3为基质及Eu2+为发光中心的荧光粉Y2O3:Eu2+。该法煅烧温度低、操作简单,不需要外界置入任何还原性物质,可将高价阳离子Eu3+还原为Eu2+,降低了反应的危险性和生产成本。对Y2O3:Eu2+的荧光性质进行了表征,并进一步探讨了Eu2+荧光发射主峰产生较大红移现象的原因,以及发光强度与煅烧温度和Eu2+含量的关系。

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	范军刚
	孙淑清
	马向辉

关键词：共沉淀发光性质

Abstract： In this article,Y_2O_3:Eu~(2+) phosphor powder is synthesized by self-reduction and oxidation of oxalicates that prepared by oxalic acid co-precipitation method,in which Y_2O_3 is the host material and Eu~(2+) is the photoluminescent center.This method has a low calcination temperature and simple operation and Eu~(3+) was reduced to Eu~(2+) without any reductive materials from outside.This method has lower danger and cost than conventional methods.In this experiment,the photoluminescent properties and mechanism of Y_2O_3:Eu~(2+) as well as relations between concentration of Eu~(2+),calcinations temperature and luminescent brightness of Eu~(2+) at 545 nm in the emission spectra are investigated.

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Received 2007-11-15; published 2007-11-15

引用本文:

范军刚;孙淑清;马向辉;.草酸共沉淀法制备的Y_2O_3:Eu~(2+)发光性能[J]. 化学工业与工程, 2007,24(6): 497-500

FAN Jun-gang,SUN Shu-qing,MA Xiang-hui.Photoluminescence of Y_2O_3:Eu~(2+) Phosphor Prepared by Oxalic Acid Co-Precipitation Method[J]. Chemcial Industry and Engineering, 2007,24(6): 497-500

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