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Hybrid Charge-Transfer Semiconductors: (C7H7)SbI4, (C7H7)BiI4, and Their Halide Congeners

preprint
submitted on 10.03.2019 and posted on 11.03.2019 by Iain Oswald, Eve M. Mozur, Ian P. Moseley, Hyochul Ahn, James R. Neilson

The family of hybrid metal-halide semiconductors (C7H7)MX4 (M = Bi3+, Sb3+; X = Cl, Br, I) was synthesized. The optical and electronic properties of the new compounds were elucidated, revealing electronic band gaps that span the visible region. The tropylium cations stack into columns separated by chains of edge-sharing M-X octahedra to yield a low dimensional crystal structure with electron and hole charge carriers confined to the organic and inorganic components, respectively.

History

Email Address of Submitting Author

iwoswald@colostate.edu

Institution

Colorado State University

Country

United States

ORCID For Submitting Author

0000-0002-5466-0405

Declaration of Conflict of Interest

no conflict of interest

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