Zhi-Yong Li

TL;DR: Density functional theory calculations reveal that Ni doping of perovskites causes an increase of defect formation energy and does not introduce deep trap states in the band gap, which is suggested to be the main reason for the improved local structural order and near-unity PLQY in undoped NCs.

TL;DR: This work demonstrates a strategy for creating a new generation of persistent phosphor that exhibits strong ultraviolet C emission with an initial power density over 10 milliwatts per square meter and an afterglow of more than 2 h, and shows that the ultraviolet C after glow intensity of the yielded phosphor is sufficiently strong for sterilization.

TL;DR: In this paper, a one-pot synthetic passivation strategy was developed to boost the violet-emitting efficiency of CsPbCl3 NCs through the creation of a Ca2+/Sr2+ involved passivation layer.

TL;DR: In this paper, the authors provided the first experimental evidence regarding the local structure of rare earth ions in CsPbCl3 nanocrystals, based on the analysis of extended X-ray absorption fine structure spectroscopy.

Abstract: All-inorganic perovskite nanocrystals (NCs) have emerged as a class of low-cost and high-efficiency light-emitting materials. However, the structure and phase transition behavior of these NCs remai...