Inorganic‐Cation Pseudohalide 2D Cs2Pb(SCN)2Br2 Perovskite Single Crystal (Adv. Mater. 7/2022)

Chwen‐Haw Liao,Chiung‐Han Chen,Jueming Bing,Christopher Bailey,Yi‐Ting Lin,Twishi Mukul Pandit,Laura Granados,Jianghui Zheng,Shi Tang,Bi‐Hsuan Lin,Hung‐Wei Yen,Dane R. McCamey,Brendan J. Kennedy,Chu‐Chen Chueh,Anita W. Y. Ho‐Baillie

Advanced Materials（2022）

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Abstract

Cs2Pb(SCN)2Br2, an inorganic-cation pseudo-halide 2D phase perovskite single crystal, is grown by a simple antisolvent vapor-assisted crystallization method, as reported by Chu-Chen Chueh, Anita W. Y. Ho-Baillie, and co-workers in article number 2104782. Cs2Pb(SCN)2Br2 exhibits a reversible first-order phase transformation to CsPbBr2 at 450 K and has a low exciton binding energy amongst the 2D perovskites. Demonstration for photodetector application shows respectable responsivity and detectivity.

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