Light-Induced Wavelength Dependent Self Assembly Process for Targeted Synthesis of Phase Stable 1D Nanobelts and 2D Nanoplatelets of CsPbI₃ Perovskites.

ABSTRACT: Despite black cubic phase α-CsPbI₃ nanocrystals having an ideal bandgap of 1.73 eV for optoelectronic applications, the phase transition from α-CsPbI₃ to non-perovskite yellow δ-CsPbI₃ phase at room temperature remains a major obstacle for commercial applications. Since γ-CsPbI₃ is thermodynamically stable with a bandgap of 1.75 eV, which has great potential for photovoltaic applications, herein we report a conceptually new method for the targeted design of phase stable and near unity photoluminescence quantum yield (PLQY) two-dimensional (2D) γ-CsPbI₃ nanoplatelets (NPLs) and one-dimensional (1D) γ-CsPbI₃ nanobelts (NBs) by wavelength dependent light-induced assembly of CsPbI₃ cubic nanocrystals. This article dem

SUBMITTER: Pramanik A 

PROVIDER: S-EPMC10099116 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature