Guanidinium-Formamidinium Lead Iodide: A Layered Perovskite-Related Compound with Red Luminescence at Room Temperature

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From: Journal of the American Chemical Society(Vol. 140, Issue 11)
Publisher: American Chemical Society
Document Type: Report
Length: 72 words

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Abstract :

The article presents a new layered hybrid lead halide, namely [CH(NH2)2][C(NH2)3]PbI4, wherein puckered lead-iodide layers are separated by two small and stable organic cations: formamidinium, CH(NH2)2+, and guanidinium, C(NH2)3+. This perovskite is thermally stable up to 255 [degrees]C, exhibits room-temperature photoluminescence in the red region with a quantum yield of 3.5%, and is photoconductive. This study highlights a vast structural diversity which exists in the compositional space typically used in perovskite photovoltaics.

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Gale Document Number: GALE|A540180448