Recent development in rare earth doped phosphors for white light emitting diodes

As new light sources for next-generation illumination, white light-emitting diodes（WLEDs） have been extensively developed and are commercially available due to their excellent advantages, such as high efficiency, energy-saving, compactness, long operational lifetime and environmental friendliness. C...

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Published inJournal of rare earths Vol. 33; no. 1; pp. 1 - 12
Main Author 王育华 朱革 辛双宇 王倩 李艳艳 吴泉生 王闯 王希成 丁鑫 耿婉莹
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2015
Subjects
Color
Conversion
development
Diodes
Luminescence
Phosphors
Rare earth metals
rare earths
Rendering
white LEDs
White light
工作寿命
常用方法
掺稀土元素
波长转换
环境友好性
白色发光二极管
荧光体
高显色性
white LEDs
development
phosphors
rare earths
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Summary:As new light sources for next-generation illumination, white light-emitting diodes（WLEDs） have been extensively developed and are commercially available due to their excellent advantages, such as high efficiency, energy-saving, compactness, long operational lifetime and environmental friendliness. Currently, WLEDs with high color rendering are mainly based on wavelength conversion by one or more phosphor materials. In this review, the recent developments of phosphors for WLEDs were introduced combined with the relative work of our group. The common methods for generating white light for blue/ultraviolet（UV） WLEDs were summarized, including：（1） optimizing the commercially used phosphors;（2） developing some new phosphors based on UV LEDs chips;（3） realizing white light emission based on single host. Moreover, some typical new developed phosphors and their luminescence properties were introduced.
Bibliography:11-2788/TF
WANG Yuhua, ZHU Ge, XIN Shuangyu, WANG Qian, LI Yanyan, WU Quansheng, WANG Chuang, WANG Xicheng, DING Xin, GENG Wanying（Key Laboratory for Special Function Materials and Structural Design of the Ministry of the Education, Lanzhou University, Department of Materials Science, School of Physical Science and Teehnology, Lanzhou University, Lanzhou 730000, China）
rare earths; phosphors; white LEDs; development
As new light sources for next-generation illumination, white light-emitting diodes（WLEDs） have been extensively developed and are commercially available due to their excellent advantages, such as high efficiency, energy-saving, compactness, long operational lifetime and environmental friendliness. Currently, WLEDs with high color rendering are mainly based on wavelength conversion by one or more phosphor materials. In this review, the recent developments of phosphors for WLEDs were introduced combined with the relative work of our group. The common methods for generating white light for blue/ultraviolet（UV） WLEDs were summarized, including：（1） optimizing the commercially used phosphors;（2） developing some new phosphors based on UV LEDs chips;（3） realizing white light emission based on single host. Moreover, some typical new developed phosphors and their luminescence properties were introduced.
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1002-0721
2509-4963
DOI:10.1016/S1002-0721(14)60375-6