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VO_4^(3-)在R_2V_2O_7:Eu^(3+)(R=Sr,Ca,Ba)的宽带发射(英文)

Broad Emission from VO_4^(3-) Group Observed in R_2V_2O_7:Eu^(3+) (R=Ca,Sr,Ba)
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摘要 R2V2O7:Eu3+(R=Ca,Sr,Ba)样品由溶胶凝胶法制备。研究了样品的发光性能。随着R离子半径的增加,样品的发射光谱出现了一个450~750nm宽的发射宽带。发射谱在617nm的发射峰来自于Eu3+的5D0-7Fj的跃迁,除此之外,在510nm出现了另一最强发射峰,归因于VO43-离子团的本质的发射。另外,可以改变R离子半径来控制蓝绿光和红光强度的比例,这可能是一个很好的应用。 R2V2O7:Eu3+(R=Ca,Sr,Ba)样品由溶胶凝胶法制备。研究了样品的发光性能。随着R离子半径的增加,样品的发射光谱出现了一个450~750nm宽的发射宽带。发射谱在617nm的发射峰来自于Eu3+的5D0-7Fj的跃迁,除此之外,在510nm出现了另一最强发射峰,归因于VO43-离子团的本质的发射。另外,可以改变R离子半径来控制蓝绿光和红光强度的比例,这可能是一个很好的应用。
出处 《稀有金属材料与工程》 SCIE EI CAS CSCD 北大核心 2012年第S2期524-527,共4页 Rare Metal Materials and Engineering
基金 Higher Educational Natural Science Foundation of Anhui Province(KJ2010A012) Open Foundation of Anhui Key Laboratory of Information Materials and Devices and the "211 Project" of Anhui University
关键词 荧光粉 (Ca Sr Ba)2V2O7:Eu3+ 光致发光 宽带发射 phosphor (Ca,Sr,Ba)2V2O7:Eu3+ photoluminescence broad emission
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参考文献25

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