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首页> 外文期刊>Japanese journal of applied physics >New Green Phosphor (Ba_(1.2)Ca_(0.8-x)Eu_x)SiO_4 for White-Light-Emitting Diode
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New Green Phosphor (Ba_(1.2)Ca_(0.8-x)Eu_x)SiO_4 for White-Light-Emitting Diode

机译:用于白色发光二极管的新型绿色荧光粉(Ba_(1.2)Ca_(0.8-x)Eu_x)SiO_4

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摘要

A novel promising green phosphor, (Ba_(1.2)Ca_(0.8-x)Eu_x)SiO_4, has been developed for low- color-temperature solid-state lighting when used in combination with near-ultraviolet light-emitting diodes. It has a unique crystal structure (hexagonal, T phase) with five different cation sites among all possible (Ba,Sr,Ca)_2SiO_4:Eu~(2+) compounds. It exhibits a broad absorption band in the near-ultraviolet region of approximately 400 ran and an intense broad green emission. It shows a slightly higher thermal quenching temperature (175℃) than conventional yellow (Ba,Sr,Ca)_2SiO_4:Eu~(2+) phosphors (150℃).
机译:当与近紫外发光二极管结合使用时,已经开发出一种新型的有前途的绿色荧光粉(Ba_(1.2)Ca_(0.8-x)Eu_x)SiO_4,用于低温色固态照明。它具有独特的晶体结构(六角形,T相),在所有可能的(Ba,Sr,Ca)_2SiO_4:Eu〜(2+)化合物中具有五个不同的阳离子位点。它在约400纳米的近紫外线区域显示出较宽的吸收带,并发出强烈的宽绿光。与传统的黄色(Ba,Sr,Ca)_2SiO_4:Eu〜(2+)荧光粉(150℃)相比,它的热淬火温度(175℃)略高。

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  • 来源
    《Japanese journal of applied physics》 |2010年第2issue1期|p.020214.1-020214.3|共3页
  • 作者单位

    Department of Image System Science and Engineering, Pukyong National University, Busan 608-739, Republic of Korea;

    Department of Image System Science and Engineering, Pukyong National University, Busan 608-739, Republic of Korea Department of Electrical and Computer Engineering, University of Alabama, Tuscaloosa, AL 35487-0286, U.S.A.;

    Department of Electrical and Computer Engineering, University of Alabama, Tuscaloosa, AL 35487-0286, U.S.A.;

    Department of Electrical and Computer Engineering, University of Alabama, Tuscaloosa, AL 35487-0286, U.S.A.;

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