Title
Full-color-tunable phosphorescence of antimony-doped lead halide single crystal
Author
Jin-Feng Liao, Zhipeng Zhang, Bingzhe Wang, Zikang Tang & Guichuan Xing
Year
2022
Journal
npj Flexible Electronics
Abstract
Although multiple emissive phosphors are of great fundamental interest and practical importance, it is still challenging to achieve full-color tunable luminescence in a single-component material. Herein, we present an antimony-doped lead halide single crystal (C10NH22)2PbBr4: Sb3+ with widely tunable red/green/blue/white luminescence. Extrinsic Sb3+ dopants provide host another active sites to capture photo-generated excitons, thus triggering blue/red dual emission. Moreover, a reversible thermal-induced phase transition transforms blue/red emission into green/red dual emission. Both two phases exhibit intriguing excitation-wavelength dependent emission, affording a whole color gamut covering the red-green-blue (RGB) color triangle on the CIE 1931 diagram. Experimental and theoretical calculation studies reveal two emitters work independently, which paves the way for the multimode optical control and promotes the development of multifunctional luminescent materials.
Full Article
Instrument
V-770
Keywords
luminescence, emission, crystal