Revival of Degraded CsPbI3 Nanocrystals by Diselenide Ligand and Nanocrystal Self‐Assembly on Nanofibrilar Ligand Template
Arup Ghorai,
Avijit Das,
Yoonsun Choi
et al.
Abstract:Among the lead halide perovskite (LHP) family, CsPbI3 is known to be significantly vulnerable to moisture, which hinders its use in real device applications. It is reported that chalcogen‐based ligands can better stabilize CsPbI3 and revive nanocrystals (NCs). Here, diphenyl diselenide (DPhDSe) ligand is used to revive the degraded CsPbI3 NCs through a post‐synthetic treatment of adding a small amount of DPhDSe in the degraded NC dispersion. DPhDSe in the dispersion formed nanofibrillar crystals at a low tempe… Show more
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