Water-induced fluorescence enhancement of lead-free cesium bismuth halide quantum dots by 130% for stable white light-emitting devices
Zhuangzhuang Ma, Zhifeng Shi, Lintao Wang, Fei Zhang, Di Wu, Dongwen Yang, Chen Xu, Yù Zhang, Chongxin Shan, Xinjian Li
Abstract
/BiOBr nanocomposites were used as the color-converting phosphors for down-conversion white light-emitting devices, which show a good operation stability in ambient air, significantly better than the reference device constructed with conventional lead-halide perovskites. We believe that the method used here provides an effective strategy to improve the fluorescence efficiency of lead-free perovskite QDs, which will create opportunities for their applications in lighting and displays.
Topics & Concepts
HalideBismuthQuantum dotCaesiumFluorescenceWhite lightLead (geology)Materials scienceOptoelectronicsPhotochemistryNanotechnologyChemistryInorganic chemistryOpticsPhysicsMetallurgyGeologyGeomorphologyPerovskite Materials and ApplicationsLuminescence Properties of Advanced MaterialsQuantum Dots Synthesis And Properties