Synthesis of graphene quantum dot/metal-organic framework nanocomposites as yellow phosphors for white light-emitting diodes

被引：56
作者：
Pan, Dengyu [1 ]
Wang, Lijun [1 ]
Li, Zhen [1 ]
Geng, Bijiang [1 ]
Zhang, Chen [1 ]
Zhan, Jing [1 ]
Yin, Luqiao [2 ]
Wang, Liang [3 ]
机构：
[1] Shanghai Univ, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China
[2] Shanghai Univ, Key Lab Adv Display & Syst Applicat, Shanghai 200072, Peoples R China
[3] Shanghai Univ, Inst Nanochem & Nanobiol, Shanghai 200444, Peoples R China
来源：
NEW JOURNAL OF CHEMISTRY | 2018年 / 42卷 / 07期
基金：
中国国家自然科学基金;
关键词：
ROOM-TEMPERATURE SYNTHESIS; GRAM-SCALE SYNTHESIS; DOTS; SEPARATION; ENCAPSULATION; FABRICATION; ADSORPTION; ZIF-8; NANOPARTICLES; NANOCRYSTALS;
D O I：
10.1039/c7nj04909a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new luminescent composite material GQD@ZIF-8 was obtained by incorporating edge-sulfonated graphene quantum dots (GQDs) as an active fluorescent species into nanocrystals of the zeolitic imidazolate framework (ZIF-8) as both a stabilizer and a carrier by a simple, rapid, and eco-friendly approach. The as-synthesized GQD@ZIF-8 composite not only exhibits excellent fluorescence properties in aqueous solutions but can also emit bright fluorescence in the solid state due to the effective encapsulation by ZIF-8. The GQD@ZIF-8 nanocomposite was used as a novel yellow phosphor in the fabrication of white light-emitting diodes (WLEDs) based on a blue-light LED chip with a proximate CIE coordinate (0.33, 0.33) of highly pure white light and a relatively high color-rendering index.
引用
收藏
页码：5083 / 5089
页数：7
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