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

^*Corresponding author for this work

Design, Manufacturing And Engineering Management

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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
Number of pages	8
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 - 21 Aug 2018

Funding

We acknowledge support by the Engineering and Physical Sciences Research Council (grant codes EP/M506631/1, EP/K015540/01, EP/K022237/1 and EP/M025330/1). IDWS and JTSI acknowledge Royal Society Wolfson research merit awards.

Keywords

perovskite
ethylenediammonium substitution
aliovalent substitution
photophysical properties

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10.1039/c8cp01871e

Payne-etal-PCCP-2018-Probing-the-structure-property-composition-relationship-in-organic-inorganic-tri-halide-perovskitesAccepted author manuscript, 1.37 MBLicence: Strath_1

https://research-portal.st-andrews.ac.uk/en/publications/probing-the-structure-property-composition-relationship-in-organi

Cite this

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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.",

keywords = "perovskite, ethylenediammonium substitution, aliovalent substitution, photophysical properties",

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.\}",

year = "2018",

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doi = "10.1039/c8cp01871e",

language = "English",

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journal = "Physical Chemistry Chemical Physics",

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T1 - Probing the structure–property–composition relationship in organic–inorganic tri-halide perovskites

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 - 2018/8/21

Y1 - 2018/8/21

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.

KW - perovskite

KW - ethylenediammonium substitution

KW - aliovalent substitution

KW - photophysical properties

UR - https://doi.org/10.17630/7c406b50-2afe-4071-89ab-3b0fd3f70cc4

U2 - 10.1039/c8cp01871e

DO - 10.1039/c8cp01871e

M3 - Article

C2 - 30043774

AN - SCOPUS:85052110473

SN - 1463-9076

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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

Abstract

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Keywords

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