Green Photoluminescence of Perovskite CsPb(Br_1-x I _x )₃ Nanocrystals for Wide Color Gamut Displays.

ABSTRACT: All-inorganic mixed-halide CsPb(Br_1-x I _x )₃ perovskite nanocrystals (NCs) are excellent candidates for green-emitting phosphors in wide color gamut displays; however, a detailed investigation of their photoluminescence (PL) properties based on the halide composition has been missing. In this work, we report a fundamental investigation of the changes in the PL properties of CsPb(Br_1-x I _x )₃ NCs. The PL color of the NCs, which were prepared by a hot-injection method, changed from green to red with increasing iodide composition (x). Almost ideal green emission close to the chromaticity coordinates of the green vertex of the BT.2020 standard was achieved by appropriately substituting iodide i

SUBMITTER: Miyata S 

PROVIDER: S-EPMC6751700 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature