CH3NH3PbCl3 Single Crystals: Inverse Temperature Crystallization and Visible-Blind UV-Photodetector

Giacomo Maculan, Arif D. Sheikh, Ahmed L. Abdelhady, Makhsud I. Saidaminov, Mohammed Haque, Murali Banavoth, Erkki Alarousu, Omar F. Mohammed, Tao Wu, Osman Bakr

Research output: Contribution to journalArticlepeer-review

402 Scopus citations

Abstract

Single crystals of hybrid perovskites have shown remarkably improved physical properties compared to their polycrystalline film counterparts, underscoring their importance in the further development of advanced semiconductor devices. Here we present a new method of sizeable CH3NH3PbCl3 single crystal growth based on retrograde solubility behavior of hybrid perovskites. We show, for the first time, the energy band structure, charge-carrier recombination and transport properties of single crystal CH3NH3PbCl3. The chloride-based perovskite crystals exhibit trap-state density, charge carriers concentration, mobility and diffusion length comparable with the best quality crystals of methylammonium lead iodide or bromide perovskites reported so far. The high quality of the crystal along with its suitable optical bandgap enabled us to design and build an efficient visible-blind UV-photodetector, demonstrating the potential of this material to be employed in optoelectronic applications.
Original languageEnglish (US)
Pages (from-to)3781-3786
Number of pages6
JournalThe Journal of Physical Chemistry Letters
Volume6
Issue number19
DOIs
StatePublished - Sep 17 2015

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