Bright Multicolor Bandgap Fluorescent Carbon Quantum Dots for Electroluminescent Light-Emitting Diodes
Fanglong Yuan1, Zhibin Wang2, Xiaohong Li1
1Department of Chemistry, Beijing Normal University, Beijing, 100875, China.
Advanced Materials (Deerfield Beach, Fla.)
|November 24, 2016
Abstract:
Multicolor bandgap fluorescent carbon quantum dots (MCBF-CQDs) from blue to red with quantum yield up to 75% are synthesized using a solvothermal method. For the first time, monochrome electroluminescent light-emitting diodes (LEDs) with MCBF-CQDs directly as an active emission layer are fabricated. The maximum luminance of blue LEDs reaches 136 cd m-2 , which is the best performance for CQD-based monochrome electroluminescent LEDs.


