@article{Li2026, 
author = {Bingjie Li and Xinyi Wang and Yingqin Xu and Mingming Zhang and Fangxu Dai and Jixiang Xu and Zhanchao Wu and Qiang Cao and Lei Wang and Jun Xing},
title = {Solvent-free polymerized carbon nitride dots for light-emitting diode},
year = {2026},
journal = {Nano Research},
volume = {19},
number = {5},
pages = {94908318},
keywords = {photoluminescence, carbon nitride, electroluminescence, dots, light-emitting diodes (LED)},
url = {https://www.sciopen.com/article/10.26599/NR.2026.94908318},
doi = {10.26599/NR.2026.94908318},
abstract = {Carbon nitride dots (CNDs) emerge as a metal-free luminescent material combining earth-abundant precursors, exceptional chemical stability, and tailorable optoelectronic properties. Here we report a solvent-free synthesis of CNDs through thermal polymerization method that achieves unprecedented photoluminescence quantum yields of 72% alongside balanced charge transport characteristics. The CNDs exhibit uniform size distribution and excellent colloidal stability in various solvents. Leveraging these advantages, we demonstrate a solution-processed light-emitting diodes (LED) using CNDs as the emissive layer, with a luminance exceeding 1000 cd·m−2 for the first time and a record external quantum efficiency of 0.9% among CNDs-based electroluminescent devices. Our work establishes solution-processable CNDs as promising candidates for low-cost, environmentally benign light-emitting technologies.}
}