Mechanisms of flux action for luminescence properties of the BAM phosphor

摘要：

The Eu2+ activated blue emitting BaMgAl10O17:Eu2+ (BAM) phosphor for PDP application was successfully prepared by solution combustion method. The mechanism of H3BO3 as flux for the luminescence properties of the BAM phosphor was mainly investigated. The results show that the use of H3BO3 as flux can help to crystallize the phosphor, and enhances the intensities of excitation and emission spectra of BAM. The optimum content of H3BO3 is about 1.0wt.％ , which increased the relative emission intensity of BAM over 30％. The flux mechanism to improve photoluminescence characteristics of BAM is that the H3BO3 melts at a low temperature to form liquid phase leading to accelerate the velocity of chemical reaction, prompt the Eu2+ enter the BAM lattice through the grain boundary diffusion and improve particles morphology with round edge, smooth surface and nearly spherical shape.

关键词： Mechanism flux BaMgAl10O17∶Eu2+(BAM) luminescence properties

作者: 陈哲 严有为

作者单位: 南昌工程学院,南昌 330099 华中科技大学模具技术国家重点实验室,武汉 430074

会议类型: 国际会议

会议名称: 第六届中国国际纳米科技研讨会

会议地点: 成都

会议语种:英文

在线出版日期: 2007-11-19（万方平台首次上网日期，不代表论文的发表时间）