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Phonon mode transformation in size-evolved solution-processed inorganic lead halide perovskite

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Abstract

Recently, lead halide perovskites have attracted significant scientific attention in the fields of photovoltaics, light emitting diodes, lasers, photo-detectors and other optoelectronic functional devices. The most stable crystal form of lead halide perovskites is the cube, including nano-cube and micro-cube, which hold great promise as functional materials due to their combination of unique optoelectronic properties and versatility through colloidal synthesis. Herein, we report the solution-processed synthesis of pure inorganic lead halide nano-cubes- and micro-cubes-based colloidal perovskites. The different size of cubes either into nano-cube or micro-cube are demonstrated that their phonon mode transformation which means the perovskite crystal structure phase change cross the nano-cube to micro-cube. The solution-processed colloidal synthesis method and phonon-mode transformation from nano-cube to micro-cube make pure inorganic lead halide perovskite an ideal platform for fundamental optoelectronic studies and the investigation of functional devices.

Graphical abstract: Phonon mode transformation in size-evolved solution-processed inorganic lead halide perovskite

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Publication details

The article was received on 07 Dec 2017, accepted on 10 Mar 2018 and first published on 19 Mar 2018


Article type: Paper
DOI: 10.1039/C7NR09101J
Citation: Nanoscale, 2018, Advance Article
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    Phonon mode transformation in size-evolved solution-processed inorganic lead halide perovskite

    H. Shi, X. Zhang, X. Sun and X. Zhang, Nanoscale, 2018, Advance Article , DOI: 10.1039/C7NR09101J

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