期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 6, 期 6, 页码 1579-1586出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7tc05156e
关键词
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资金
- Natural Science Foundation of Shandong Province [ZR2016EMQ10]
- National Natural Science Foundation of China [51202131]
- SDUST Research Fund
- Joint Innovative Center for Safe and Effective Mining Technology and Equipment of Coal Resources, Shandong Province [2014JQJH102]
- Major Fundamental Research of Shandong Province, China [ZR2017ZB0318]
Hybrid perovskite MAPbCl(3) is considered to be one of the most promising candidates applied in visible-blind UV-photo-detectors due to its outstanding optoelectronic properties. It is proved that the MAPbCl(3) single crystal is more excellent than its polycrystalline counterpart because of its fewer defects and grain boundaries. When referring to a single crystal, the crystal orientation or crystal structure anisotropy is an inevitable topic, because structure anisotropy can affect or decide the optoelectronic properties of single crystals. In this study, both cubic and triangular prism MAPbCl(3) 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 was explored by comparing photocurrents, responsivity, external quantum efficiency and detectivity. According to the crystal structure and calculated charge density, the optoelectronic anisotropy in the MAPbCl(3) single crystal was revealed.
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