Cryogenic Narrowband Green Emission in Blue-Light Excited Pb-Free Double Perovskite Cs2Ag0.6Na0.4In0.8Bi0.2Cl6@KSCN via Surface Reconstruction-Induced Energy Level Modification
Xiao-Kai Gong,
Xiao-Song Zhang,
Qian Li
et al.
Abstract:Pb-free double perovskites, such as Cs 2 AgInCl 6 , have received considerable attention in optoelectronic applications as a more stable and less toxic substitute for Pb-based perovskites. However, Cs 2 AgInCl 6 faces challenges in being excited by blue light, and its relatively large spectral line width restricts its development in the display field. This study introduces a novel structure wherein the surface of double perovskite Cs 2 Ag 0.6 Na 0.4 In 0.8 Bi 0.2 Cl 6 is coated with KSCN, enabling efficient ex… Show more
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