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

被引：36

作者：

Labram, John G. ^{[1
,2
]}

Venkatesan, Naveen R. ^{[1
,2
]}

Takacs, Christopher J. ^{[1
,2
]}

Evans, Hayden A. ^{[1
,2
,3
,4
]}

Perry, Erin E. ^{[1
,2
]}

Wudl, Fred ^{[1
,2
,3
,4
]}

Chabinyc, Michael L. ^{[1
,2
,3
]}

机构：

[1] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Mitsubishi Chem Ctr Adv Mat, Santa Barbara, CA 93106 USA

[3] Univ Calif Santa Barbara, Mat Res Lab, Santa Barbara, CA 93106 USA

[4] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2017年 / 5卷 / 24期

基金：

美国国家科学基金会;

关键词：

PEROVSKITE SOLAR-CELLS; EXCITON BINDING-ENERGY; CARRIER RECOMBINATION; HIGH-PERFORMANCE; EFFECTIVE MASSES; LIGHT; EFFICIENT; DYNAMICS; PLANAR; METHYLAMMONIUM;

D O I：

10.1039/c7tc01161j

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：5930 / 5938

页数：9

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