Abstract
Organic–inorganic hybrid perovskites have attracted considerable attention owing to their high potential of producing novel materials with intriguing properties and unusual structures. Herein, by changing halogen atom on the inorganic skeleton, we designed two cases of inorganic-organic hybrid crystals, [C10H16N]4Pb3Cl10(1-Cl) and [C10H16N]4Pb3Br10 (2-Br), which ([C10H16N] = benzyltrimethylammonium). Compounds 1-Cl and 2-Br adopt almost the same 2D inorganic layer structure with adjacent [PbX6] octahedrons connected by face-sharing and corner-sharing. Specifically, 2-Br with higher distortion exhibits a broad band yellow emission, with a photoluminescence quantum efficiency of 2.53%, indicating great potential application in light-emitting diodes.
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