Rare‐Earth‐Based Perovskite Cs2AgScCl6:Bi for Strong Full Visible Spectrum Emission

• DOI: 10.1002/adfm.202204780
• Publication Date: 2022-05-23T02:09:55Z
• Authors: Zhichao Zeng; Mingzi Sun; Shuai Zhang; Hongtu Zhang; Xiaomeng Shi; Shi Ye; Bolong Huang; Yaping Du; Chun‐Hua Yan
• Keywords: Visible spectrum

Abstract Most luminescent materials can only emit light with a particular wavelength. In general, various phosphors complementary spectral ranges are mixed to realize full‐spectrum lighting. Therefore, the integration of luminescence at different wavebands in single component matrix obtain white emission is optimal strategy for designing lighting materials. Thus, Sc‐based double perovskite Cs 2 AgScCl 6 : x Bi adjustable free exciton and self‐trapped synthesized by vacuum evaporation assisted synthetic method. This be used as phosphor assemble high‐quality device. Density functional theory calculations have revealed that introduction optimizes electron transfer suppresses defects , which leads excellent performance broad wavelength range. work provides new concept design preparation rare‐earth optical perovskites future.