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Chin. Phys. B, 2015, Vol. 24(6): 068505    DOI: 10.1088/1674-1056/24/6/068505
Special Issue: TOPICAL REVIEW — III-nitride optoelectronic materials and devices
TOPICAL REVIEW—III-nitride optoelectronic materials and devices Prev   Next  

Phosphor-free white light-emitting diodes

Guo Xia (郭霞), Liu Qiao-Li (刘巧莉), Li Chong (李冲), Liu Bai (刘白), Dong Jian (董建), Shen Guang-Di (沈光地)
Photonic Research Laboratory, Beijing University of Technology, Beijing 100124, China
Abstract  

The multiple color-matching schemes that could improve the color rendering index for phosphor-free white LEDs are discussed. Then we review a few of the recent research directions for phosphor-free white LEDs, which include the development of monolithic GaN-based white LEDs and hybrid integrated GaN-based and AlGaInP-based white LEDs. These development paths will pave the way toward commercial application of phosphor-free white LEDs in the coming years.

Keywords:  phosphor-free      white light-emitting diodes      color rendering index      hybrid integration  
Received:  07 January 2015      Revised:  16 April 2015      Accepted manuscript online: 
PACS:  85.30.-z (Semiconductor devices)  
  42.55.Px (Semiconductor lasers; laser diodes)  
Fund: 

Project supported by the National Natural Science Foundation of China (Grant Nos. 61222501 and 61335004) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20111103110019).

Corresponding Authors:  Guo Xia     E-mail:  guo@bjut.edu.cn
About author:  85.30.-z; 42.55.Px

Cite this article: 

Guo Xia (郭霞), Liu Qiao-Li (刘巧莉), Li Chong (李冲), Liu Bai (刘白), Dong Jian (董建), Shen Guang-Di (沈光地) Phosphor-free white light-emitting diodes 2015 Chin. Phys. B 24 068505

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