Perovskite Nanocrystals: Highly Efficient Blue‐Emitting CsPbBr(3) Perovskite Nanocrystals through Neodymium Doping (Adv. Sci. 20/2020)

The lack of highly efficient blue‐emitting perovskite nanocrystals limits their development for optoelectronic applications. In article number 2001698, Bartomeu Monserrat, Shuyu Zhang, and co‐workers develop blue‐emitting neodymium‐doped CsPbBr3 nanocrystals with high photoluminescence quantum yield (PLQY) and narrow spectral width. First principles calculations reveal the microscopic mechanisms for the blueshift of photoluminescence and the enhancement of PLQY upon doping. [Image: see text]