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Crystal Orientation Dependent Optoelectronic Properties in MAPbCl3 Single Crystal

Abstract

Hybrid perovskite MAPbCl3 is considered to be one of the most promising candidates applied in visible-blind UV-photo-detectors on account of its outstanding optoelectronic properties. It is proved that MAPbCl3 single crystal is more excellent than its polycrystalline counterpart because of its fewer defects and grain boundaries. When referring single crystal, crystal orientation or crystal tructure anisotropy is an inevitable topic, because structure anisotropy can affect or decide optoelectronic properties of single crystal. In this study, both cubic and triangle prism MAPbCl3 single crystals with (100) and (110) crystallographic planes were successfully grown from mixed solutions. The crystal growth process, crystal structure and optical absorption were investigated. Moreover, by fabricating metal-semiconductor-metal (MSM) photo-detectors using Au interdigital electrodes on both (100) and (110) planes, the optoelectronic anisotropy were explored by comparing the photocurrents, responsivity, external quantum efficiency and detectivity. According to the crystal structure and calculated charge density, the optoelectronic anisotropy in MAPbCl3 single crystal was revealed.

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Publication details

The article was received on 12 Nov 2017, accepted on 11 Jan 2018 and first published on 12 Jan 2018


Article type: Paper
DOI: 10.1039/C7TC05156E
Citation: J. Mater. Chem. C, 2018, Accepted Manuscript
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    Crystal Orientation Dependent Optoelectronic Properties in MAPbCl3 Single Crystal

    X. Cheng, L. Jing, Y. Zhao, S. Du, J. Ding and T. Zhou, J. Mater. Chem. C, 2018, Accepted Manuscript , DOI: 10.1039/C7TC05156E

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