期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 5, 期 24, 页码 5930-5938出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7tc01161j
关键词
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资金
- Defense Threat Reduction Agency [HDTRA1-15-1-0023]
- U.S. Department of Energy, Office of Science, Basic Energy Sciences [DE-SC-0012541]
- MRSEC Program of the National Science Foundation [DMR 1121053]
- Elings Fellowship Awards
Solution-processable organic metal halide compounds, such as methylammonium lead iodide (CH3NH3PbI3), possess unique optical and electronic properties such as long carrier lifetimes and high charge carrier mobility. Here we study a layered, 2-dimensional hybrid halide compound: methylammonium lead thiocyanate iodide ((CH3NH3)(2)Pb(SCN)(2)I-2). Films deposited from solution are observed to grow with strong preferential alignment of 2-dimensional layers parallel to the substrate. The charge-transport properties of carriers in the 2-dimensional planes of (CH3NH3) Pb-2(SCN)(2)I-2 were measured using the contactless electronic characterization technique time-resolved microwave conductivity (TRMC). TRMC measurements show that the sum of the electron and hole charge carrier mobilities in (CH3NH3)(2)Pb(SCN)(2)I-2 is above 1 cm(2) V-1 s(-1) and that the carrier lifetime is relatively long.
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