Pure Blue Perovskites Nanocrystals in Glass: Ultrafast Laser Direct Writing and Bandgap Tuning (Laser Photonics Rev. 17(5)/2023)

Perovskites Nanocrystals In article number 2200902, Dexhi Tan, Jianrong Qiu, and colleagues demonstrate that by manipulating ultrafast laser‐induced liquid nanophase separation, the Cd/Pb cation concentration can be controlled at the nanoscale, and the emission wavelength of CsCdxPb1−xBr3 perovskites nanocrystals (PNCs) can be tuned within the range of 461–520 nm. The high stability and bandgap tenability of PNCs in one single glass can be applied for the encryption and decryption of crucial information.