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首页> 外文期刊>Science and Technology of Advanced Materials >Effect of boron concentration in Y_2O_3:(Eu,B) phosphor on luminescence property
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Effect of boron concentration in Y_2O_3:(Eu,B) phosphor on luminescence property

机译：Y_2O_3：（Eu，B）荧光粉中硼浓度对发光性能的影响

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摘要

Y_2O_3:(Eu,B) red phosphor was obtained by a thermal decomposition technique of a mixture of yttrium-ethylenediaminetetraacetic acid (Y-EDTA), Eu-EDTA and boric acid. The doping ratio of boron, [B]/([Y] + [Eu]), in the starting material was varied from 0 to 1. The properties of morphology, crystallization behavior, metal composition and photoluminescence of resulting Y_2O_3:(Eu,B) powder were examined. The Y_2O_3:(Eu,B) powder had spherical shape with a diameter of 1-5 μm with some hollows on the surface. No secondary cohesive particles were seen. X-ray diffractometry revealed that although the crystallinity of powder was improved with addition of small amounts of boron, it decreased with excess amounts of boron. Several peaks indexed as the impurity phases of Y_3BO_6 and YBO_3 were observed on the samples obtained under condition of excess amounts of boron. The photoluminescence intensity observed at 611 nm was dependent upon crystallinity of the sample.
机译：通过钇-乙二胺四乙酸（Y-EDTA），Eu-EDTA和硼酸的混合物的热分解技术获得Y_2O_3：（Eu，B）红色荧光粉。起始材料中硼的掺杂比[B] /（[Y] + [Eu]）从0到1变化。所得Y_2O_3：（Eu，的形貌，结晶行为，金属组成和光致发光性质B）检查粉末。 Y_2O_3：（Eu，B）粉末呈球形，直径为1-5μm，表面有一些空洞。没有看到二次粘结颗粒。 X射线衍射法表明，尽管通过添加少量的硼改善了粉末的结晶度，但是随着过量的硼而降低了粉末的结晶度。在过量硼条件下获得的样品上观察到几个标为Y_3BO_6和YBO_3杂质相的峰。在611 nm处观察到的光致发光强度取决于样品的结晶度。

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