期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 8, 期 17, 页码 6657-6666出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.0c00106
关键词
Graphene quantum dots; Acid-free condition; WLEDs; Quantum yield
资金
- Natural Science Foundation of Guangdong Province [2016A030311006]
- Shenzhen Science and Technology Plan Basic Research Project [JCYJ20170413105844696]
Graphene quantum dots (GQDs) have wide prospective applications for optoelectronic fields owing to their unique characteristics, such as tunable bandgaps, high chemical and optical stability, as well as good biocompatibility. In this work, we offered a convenient proposal to obtain uniform blue-green emissive GQDs and modified efficient orange-emitting graphene quantum dots (D-GQDs) derived from fullerene (C-60) under acid-free conditions. The as-prepared D-GQDs demonstrate remarkable conversion efficiency, for which the quantum yield is up to 52.4% with an emission peak of 617 nm. Also, GQDs and D-GQDs were blended with poly(vinyl alcohol) (PVA) to prepare transparent photoluminescent films, which show excellent flexibility and preferable white emission property meeting the requirements of commercial white LEDs.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据