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Issue 31, 2018
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Probing the structure–property–composition relationship in organic–inorganic tri-halide perovskites

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Abstract

Here, we have synthesised a range of samples, with the formula (CH3NH3)1−2x(H3NC2H4NH3)xPbI3, with different levels of ethylenediammonium substitution to probe non-stoichiometry at the A-site of the perovskite. A single phase region was identified and is accompanied by a change in photophysical properties. The influence of aliovalent substitution with ethylenediammonium results in a decrease in HOMO level from −5.31 eV for x = 0 to −5.88 eV for x = 0.15.

Graphical abstract: Probing the structure–property–composition relationship in organic–inorganic tri-halide perovskites

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Supplementary files

Article information


Submitted
22 Mar 2018
Accepted
16 Jul 2018
First published
16 Jul 2018

Phys. Chem. Chem. Phys., 2018,20, 20489-20496
Article type
Paper

Probing the structure–property–composition relationship in organic–inorganic tri-halide perovskites

J. L. Payne, C. Ni, J. R. Harwell, L. K. Jagadamma, C. McDonald, D. Mariotti, I. D. W. Samuel and J. T. S. Irvine, Phys. Chem. Chem. Phys., 2018, 20, 20489
DOI: 10.1039/C8CP01871E

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