我组王肖在Laser & Photonics Reviews上发表论文

题目：

Ultra-Bright and Stable Pure Blue Light-Emitting Diode from O, N Co-Doped Carbon Dots

作者：

Xiao Wang, Yurong Ma, Qingyao Wu, Zhenzhen Wang, Yichen Tao, Yajie Zhao, Bo Wang, Jingjing Cao, Hui Wang, Xiaoqing Gu, Hui Huang, Si Li, Xiaoyong Wang, Fengrui Hu,* Mingwang Shao, Liangsheng Liao,* Tsun-Kong Sham,* Yang Liu,* and Zhenhui Kang*

单位：

Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices Soochow University Suzhou 215123, China

National Laboratory of Solid State Microstructures School of Physics, and Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093, China

College of Engineering and Applied Sciences Nanjing University Nanjing 210093, China

Department of Chemistry and Soochow-Western Centre for Synchrotron Radiation Research University of Western Ontario London N6A 5B7, Canada

摘要：

The pure blue light-emitting diodes (LEDs) play a key role in the application of solid display and illumination. Most of pure blue LEDs reported so far, are based on semiconductor quantum dots and metal complex, involving heavy metal elements. Here, the fabrication of O, N co-doped carbon dots (CDs) by a hydrothermal method from perylene-3,4,9,10-tetracarboxylic dianhydride and 2,3-diaminophenazine is shown. These CDs show strong photoluminescence (PL) emission peaked at 447 nm (in ethanol) with absolute PL quantum yields of 88.9%. They are then doped into poly(vinyl carbazole) to form the active emission layer in the pure blue CDs LEDs. The electroluminescence emission of these CDs LEDs is centered at 452 nm with Commission Internationale d'Eclairage (CIE) coordinates of (0.14, 0.10). Moreover, the pure blue CDs LEDs show a high external quantum efficiency of 2.114%, high brightness of 648 cd m(-2), long half-lifetime (T-50) of 200 h, and a favorable current efficiency of 2.2 cd A(-1). This work opens a new way to develop cost-effective, environmental-friendly, and high-efficient metal-free pure blue LEDs.

影响因子：

10.655

分区情况：

1区

链接：  

https://onlinelibrary.wiley.com/doi/10.1002/lpor.202000412