1Department of Chemistry, Beijing Normal University, Beijing 100875, China
2Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
3Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
Tóm tắt
Red emissive carbon quantum dots (R‐CQDs) with quantum yield of 53% is successfully prepared. An ultraviolet (UV)‐pumped CQD phosphors‐based warm white light‐emitting diode (WLED) is realized for the first time and achieves a color rendering index of 97. This work provides a new avenue for the exploration of low cost, environment‐friendly, and high‐performance CQD phosphors‐based warm WLEDs.
