![]() ![]() This study opens a new avenue for the fabrication of efficient perovskite nanocrystals and provides great potential of developing perovskite LEDs based on mixed-cation perovskite nanocrystals. The as-obtained (CH 3NH 3) 1− xCs xPbBr 3 nanocrystals were employed as the emission layer in perovskite light emitting diodes, and the device fabricated with the optimized perovskite nanocrystals (Cs doping x = 0.3) showed a maximum luminescence of 24 500 cd m −2, nearly ten-fold higher than those for the previous reported perovskite devices based on MAPbBr 3 nanocrystals. The emission properties, photoluminescence and stability of the mixed-cation perovskite nanocrystals have been intensively studied, which are significantly related to the content of cesium in the composition. ![]() 6 Rice Research Institute and Key Lab for Major Crop. 5 State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, China. Herein, we report for the first time the facile synthesis of perovskite nanocrystals based on (CH 3NH 3) 1− xCs xPbBr 3. 4 The State Key Laboratory of Protein and Plant Gene Research, College of Life Sciences, Peking University, Beijing, China. A high quantum yield, tunable band gap, and high color purity of perovskite nanocrystals make this class of materials attractive for electronic and optoelectronic applications in devices including solar cells, photodetectors, and light emitting diodes. You Zhang Jing () Malaysian You Zhangjing is Malaysian and also a trainee from Banana Entertainment who is well known for his vocals. ![]()
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