Highly luminescent and transparent ZnO quantum dots-epoxy composite used for white light emitting diodes

被引：31
作者：
Huang, Jia Jia [1 ]
Ye, Yi Bin [1 ]
Lei, Zhou Qiao [1 ]
Ye, Xiao Ji [1 ]
Rong, Min Zhi [1 ]
Zhang, Ming Qiu [1 ]
机构：
[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, Key Lab Polymer Composite & Funct Mat, Minist Educ, Guangzhou 510275, Guangdong, Peoples R China
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2014年 / 16卷 / 12期
关键词：
VISIBLE PHOTOLUMINESCENCE; ENCAPSULATING MATERIALS; NANOPARTICLES; NANOCOMPOSITES; PHOSPHORS; EMISSION;
D O I：
10.1039/c3cp55098b
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
By using epoxy silane as a modifier and stabilizer, ZnO quantum dots (QDs) were synthesized by a one-step precipitation approach. The ZnO QDs acquired showed satisfactory redispersibility and exhibited strong and stable photoluminescence in both solution and dry states. When the ZnO QDs content was as high as 8 wt%, the ZnO QDs-epoxy nanocomposite was still highly transparent and luminescent. Accordingly, the ZnO QDs can be used as a luminescent material, and a cool white light emitting diode (WLED) lamp was made by encapsulating a UV chip with the nanocomposite, without traditional tricolor rare earth phosphors. Additionally, the high loading nanocomposite possessed high ultraviolet resistance, which would help to improve the lifetime of the WLED.
引用
收藏
页码：5480 / 5484
页数：5
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