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Issue 24, 2017
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Charge transport in a two-dimensional hybrid metal halide thiocyanate compound

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Abstract

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)2Pb(SCN)2I2). 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)2Pb(SCN)2I2 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)2Pb(SCN)2I2 is above 1 cm2 V−1 s−1 and that the carrier lifetime is relatively long.

Graphical abstract: Charge transport in a two-dimensional hybrid metal halide thiocyanate compound

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Publication details

The article was received on 19 Mar 2017, accepted on 15 May 2017 and first published on 01 Jun 2017


Article type: Paper
DOI: 10.1039/C7TC01161J
Citation: J. Mater. Chem. C, 2017,5, 5930-5938
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    Charge transport in a two-dimensional hybrid metal halide thiocyanate compound

    J. G. Labram, N. R. Venkatesan, C. J. Takacs, H. A. Evans, E. E. Perry, F. Wudl and M. L. Chabinyc, J. Mater. Chem. C, 2017, 5, 5930
    DOI: 10.1039/C7TC01161J

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