期刊
NATURE COMMUNICATIONS
卷 9, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-018-04635-5
关键词
-
资金
- NSFC of China [21573019, 11674124]
- Major Research Plan of NSFC [21233003]
- Shenzhen Peacock Plan Program [KQTD2016053015544057]
- National Basic Research Program of China (973 Program) [2013CB922200]
- Fundamental Research Funds for the Central Universities
Carbon quantum dots (CQDs) have emerged as promising materials for optoelectronic applications on account of carbon's intrinsic merits of high stability, low cost, and environment-friendliness. However, the CQDs usually give broad emission with full width at half maximum exceeding 80 nm, which fundamentally limit their display applications. Here we demonstrate multicolored narrow bandwidth emission (full width at half maximum of 30 nm) from triangular CQDs with a quantum yield up to 54-72%. Detailed structural and optical characterizations together with theoretical calculations reveal that the molecular purity and crystalline perfection of the triangular CQDs are key to the high color-purity. Moreover, multicolored light-emitting diodes based on these CQDs display good stability, high color-purity, and high-performance with maximum luminance of 1882-4762 cd m(-2) and current efficiency of 1.22-5.11 cd A(-1). This work will set the stage for developing nextgeneration high-performance CQDs-based light-emitting diodes.
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