Zero-dimensional(0D)lead-free all-inorganic metal halides have emerged as next-generation photoluminescent(PL)materials in recent years because of their extraordinary PL properties,non-toxicity,and high stability.Here...Zero-dimensional(0D)lead-free all-inorganic metal halides have emerged as next-generation photoluminescent(PL)materials in recent years because of their extraordinary PL properties,non-toxicity,and high stability.Herein,a green,high stability,all-inorganic Rb_(2)CsBiCl_(6) single crystal with 0D structure was grown as a new PL material.Strikingly,using the antimony doping strategy,the broad yellow emission of Rb_(2)CsBiCl_(6) was significantly enhanced due to the enhanced absorption in the UV region,and the PL quantum yield was increased from 1%to 45%at room temperature.Furthermore,the fluorescent mechanism was revealed by the combination of optical characterizations and first-principles calculations.展开更多
基金supported by the Natural Science Foundation of Shandong Province(ZR2020MF128,ZR2021MB059)the Key projects of Natural Science Foundation of Shandong Province(ZR2020KB014)the Key Research Program of the Chinese Academy of Sciences(ZDRW-CN-2021-3).
文摘Zero-dimensional(0D)lead-free all-inorganic metal halides have emerged as next-generation photoluminescent(PL)materials in recent years because of their extraordinary PL properties,non-toxicity,and high stability.Herein,a green,high stability,all-inorganic Rb_(2)CsBiCl_(6) single crystal with 0D structure was grown as a new PL material.Strikingly,using the antimony doping strategy,the broad yellow emission of Rb_(2)CsBiCl_(6) was significantly enhanced due to the enhanced absorption in the UV region,and the PL quantum yield was increased from 1%to 45%at room temperature.Furthermore,the fluorescent mechanism was revealed by the combination of optical characterizations and first-principles calculations.
