A Facile Solvothermal Growth of Single Crystal Mixed Halide Perovskite CH3NH3Pb(Br1-xClx)3

Kai Zhu, Jao Van De Lagemaat, Joseph Luther, Taiyang Zhang, Mengjin Yang, Eric Benson, Zijian Li, Yanfa Yan, Yixin Zhao

Research output: Contribution to journalArticlepeer-review

135 Scopus Citations

Abstract

We demonstrate a facile synthetic approach for preparing mixed halide perovskite (CH3NH3)Pb(Br1-xClx)3 single crystals by the solvothermal growth of stoichiometric PbBr2 and [(1 - y)CH3NH3Br + yCH3NH3Cl] DMF precursor solutions. The band gap of (CH3NH3)Pb(Br1-xClx)3 single crystals increased and the unit cell dimensions decreased with an increase in Cl content x, consistent with previous theoretical predictions. Interestingly, the Cl/Br ratio in the (CH3NH3)Pb(Br1-xClx)3 single crystals is larger than that of the precursor solution, suggesting an unusual crystal growth mechanism.

Original languageAmerican English
Pages (from-to)7820-7823
Number of pages4
JournalChemical Communications
Volume51
Issue number37
DOIs
StatePublished - 7 May 2015

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry 2015.

NREL Publication Number

  • NREL/JA-5900-63841

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