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

Julia L Payne; Chengsheng Ni; Jonathon R  Harwell; Lethy Krishnan Jagadamma; Calum McDonald; Davide Mariotti; Ifor D W Samuel; John T. S. Irvine

doi:10.1039/C8CP01871E

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

Julia L Payne, Chengsheng Ni, Jonathon R Harwell, Lethy Krishnan Jagadamma, Calum McDonald, Davide Mariotti, Ifor D W Samuel, John T. S. Irvine

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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.

Original language	English
Pages (from-to)	20489-20496
Journal	Physical Chemistry Chemical Physics
Volume	20
Issue number	31
Early online date	16 Jul 2018
DOIs	https://doi.org/10.1039/C8CP01871E
Publication status	Published online - 16 Jul 2018

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title = "Probing the structure–property–composition relationship in organic–inorganic tri-halide perovskites",

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.",

author = "Payne, {Julia L} and Chengsheng Ni and Harwell, {Jonathon R} and Jagadamma, {Lethy Krishnan} and Calum McDonald and Davide Mariotti and Samuel, {Ifor D W} and Irvine, {John T. S.}",

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AU - Payne, Julia L

AU - Ni, Chengsheng

AU - Harwell, Jonathon R

AU - Jagadamma, Lethy Krishnan

AU - McDonald, Calum

AU - Mariotti, Davide

AU - Samuel, Ifor D W

AU - Irvine, John T. S.

PY - 2018/7/16

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N2 - 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.

AB - 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.

UR - http://dx.doi.org/10.1039/C8CP01871E

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DO - 10.1039/C8CP01871E

M3 - Article

SN - 1463-9084

VL - 20

SP - 20489

EP - 20496

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

IS - 31

ER -

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

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