Phosphor-in-Glass for High-Powered Remote-Type White AC-LED

被引：191

作者：

Lin, Hang ^{[1
,2
]}

Wang, Bo ^{[1
]}

Xu, Ju ^{[1
,2
]}

Zhang, Rui ^{[1
]}

Chen, Hui ^{[1
]}

Yu, Yunlong ^{[1
]}

Wang, Yuansheng ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China

[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Prov Key Lab Nanomat, Fuzhou 350002, Fujian, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2014年 / 6卷 / 23期

基金：

中国国家自然科学基金;

关键词：

optical materials; WLED; phosphor-in-glass; persistent luminescence; flicker effect; LIGHT-EMITTING-DIODES; PERSISTENT LUMINESCENCE; GREEN PHOSPHOR; SILICATE GLASS; CONVERSION; CERAMICS;

D O I：

10.1021/am506251z

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The high-powered alternating current (AC) light-emitting diode (LED) (AC-LED), featuring low cost, high energy utilization efficiency, and long service life, will become a new economic growth point in the field of semiconductor lighting. However, flicker of AC-LED in the AC cycles is not healthy for human eyes, and therefore need to be restrained. Herein we report an innovation of persistent phosphor-in-glass (PiG) for the remote-type AC-LED, whose afterglow can be efficiently activated by the blue light. It is experimentally demonstrated that the afterglow decay of PiG in the microsecond range can partly compensate the AC time gap. Moreover, the substitution of inorganic glass for organic resins or silicones as the encapsulants would bring out several technological benefits to AC-LED, such as good heat-dissipation, low glare, and excellent physical/chemical stability.

引用

页码：21264 / 21269

页数：6

共 37 条

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