Highly luminescent flexible amino-functionalized graphene quantum dots@cellulose nanofiber-clay hybrids for white-light emitting diodes

被引：74
作者：
Tetsuka, H. [1 ]
Nagoya, A. [1 ]
Asahi, R. [1 ]
机构：
[1] Toyota Cent Res & Dev Labs Inc, Frontier Res Ctr, Nagakute, Aichi 4801192, Japan
来源：
JOURNAL OF MATERIALS CHEMISTRY C | 2015年 / 3卷 / 15期
关键词：
TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET; HEAT-RESISTANT; FILMS; EFFICIENT; COMPOSITE; OXIDE;
D O I：
10.1039/c5tc00250h
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Amino-functionalized graphene quantum dots (afGQDs) made from graphene sheets glow bright with various colors under single-wavelength excitation, depending on their surface functional groups. These afGQDs were incorporated into a flexible and transparent clay host using electrostatic interactions between cellulose nanofiber (CNF) wrapped-afGQDs (CNF@afGQDs) and clay platelets. The resultant flexible afGQDs@CNF-clay films with a well-organized structure exhibited bright colorful photoluminescence, and were applied as a color converting material for blue light-emitting diodes (LEDs) to achieve white light emission. The af-GQDs@CNF-clay film based white LEDs showed pure white light emission with a CIE coordinate of (0.33, 0.37). The afGQDs@CNF-clay films with tunable emission are promising for use in future light emitting devices.
引用
收藏
页码：3536 / 3541
页数：6
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