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

Research output: Contribution to journal › Article › peer-review

Abstract

Since first being used in a solar cell, the efficiencies of organic-inorganic tri-halide perovskite solar cells have rapidly increased. Although one possible mechanism for the hysteresis exhibited by these solar cells is ionic migration, the creation of vacancies in organic-inorganic tri-halide perovskites remains unexplored experimentally. Here, we have synthesised a range of samples, with the formula (CH₃NH₃)_1-2x(H₃NC₂H₄NH₃)_xPbI₃, with different levels of ethylenediammonium doping to probe non-stoichiometry at the A-site of the perovskite. A region of solid solution was identified and this results in a change in photophysical properties. The influence of doping with ethylenediammonium iodide 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
Journal	Physical Chemistry Chemical Physics
Volume	In press
Early online date	16 Jul 2018
DOIs	https://doi.org/10.1039/C8CP01871E
Publication status	E-pub ahead of print - 16 Jul 2018

Keywords

Photovoltaics
CH3NH3PbI3
Perovskite solar cells
Doping
Non-stoichiometry

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10.1039/C8CP01871E

Payne_2018_PCCP_S-P-C_AAM
© 2018 The Author(s). This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at: https://doi.org/10.1039/C8CP01871E
Accepted author manuscript, 1.18 MB

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Inorganic Bulk Heterojunction: Inorganic Bulk Heterojunction for high efficiency in solar cell devices
Irvine, J. (PI), Connor, P. (CoI) & Xu, X. (CoI)
EPSRC
1/08/13 → 31/07/16
Project: Standard

Optoelectronic Applications of Lead Halide Perovskites (thesis data)
Harwell, J. R. (Creator) & Samuel, I. D. W. (Supervisor), University of St Andrews, 2019
DOI: 10.17630/fa576f47-27ef-4610-baf5-56893d646329, http://hdl.handle.net/10023/16943
Dataset: Thesis dataset

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Probing the Structure-Property-Composition Relationship in Organic-Inorganic Tri-halide Perovskites (dataset)
Payne, J. L. (Creator), Ni, C. (Creator), Harwell, J. R. (Creator), Krishnan Jagadamma, L. (Creator), McDonald, C. (Creator), Mariotti, D. (Creator), Samuel, I. D. W. (Creator) & Irvine, J. T. S. (Creator), University of St Andrews, 20 Jul 2018
DOI: 10.17630/7c406b50-2afe-4071-89ab-3b0fd3f70cc4
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Cite this

@article{487bfde14312431fa1b895a28ef30813,

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

abstract = "Since first being used in a solar cell, the efficiencies of organic-inorganic tri-halide perovskite solar cells have rapidly increased. Although one possible mechanism for the hysteresis exhibited by these solar cells is ionic migration, the creation of vacancies in organic-inorganic tri-halide perovskites remains unexplored experimentally. Here, we have synthesised a range of samples, with the formula (CH3NH3)1-2x(H3NC2H4NH3)xPbI3, with different levels of ethylenediammonium doping to probe non-stoichiometry at the A-site of the perovskite. A region of solid solution was identified and this results in a change in photophysical properties. The influence of doping with ethylenediammonium iodide results in a decrease in HOMO level from 5.31 eV for x = 0 to -5.88 eV for x = 0.15.",

keywords = "Photovoltaics, CH3NH3PbI3, Perovskite solar cells, Doping, Non-stoichiometry",

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

note = "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.",

year = "2018",

month = jul,

day = "16",

doi = "10.1039/C8CP01871E",

language = "English",

volume = "In press",

journal = "Physical Chemistry Chemical Physics",

issn = "1463-9076",

publisher = "Royal Society of Chemistry",

}

TY - JOUR

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 - Krishnan Jagadamma, Lethy

AU - McDonald, Calum

AU - Mariotti, Davide

AU - Samuel, Ifor D. W.

AU - Irvine, John T. S.

N1 - 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.

PY - 2018/7/16

Y1 - 2018/7/16

N2 - Since first being used in a solar cell, the efficiencies of organic-inorganic tri-halide perovskite solar cells have rapidly increased. Although one possible mechanism for the hysteresis exhibited by these solar cells is ionic migration, the creation of vacancies in organic-inorganic tri-halide perovskites remains unexplored experimentally. Here, we have synthesised a range of samples, with the formula (CH3NH3)1-2x(H3NC2H4NH3)xPbI3, with different levels of ethylenediammonium doping to probe non-stoichiometry at the A-site of the perovskite. A region of solid solution was identified and this results in a change in photophysical properties. The influence of doping with ethylenediammonium iodide results in a decrease in HOMO level from 5.31 eV for x = 0 to -5.88 eV for x = 0.15.

AB - Since first being used in a solar cell, the efficiencies of organic-inorganic tri-halide perovskite solar cells have rapidly increased. Although one possible mechanism for the hysteresis exhibited by these solar cells is ionic migration, the creation of vacancies in organic-inorganic tri-halide perovskites remains unexplored experimentally. Here, we have synthesised a range of samples, with the formula (CH3NH3)1-2x(H3NC2H4NH3)xPbI3, with different levels of ethylenediammonium doping to probe non-stoichiometry at the A-site of the perovskite. A region of solid solution was identified and this results in a change in photophysical properties. The influence of doping with ethylenediammonium iodide results in a decrease in HOMO level from 5.31 eV for x = 0 to -5.88 eV for x = 0.15.

KW - Photovoltaics

KW - CH3NH3PbI3

KW - Perovskite solar cells

KW - Doping

KW - Non-stoichiometry

U2 - 10.1039/C8CP01871E

DO - 10.1039/C8CP01871E

M3 - Article

SN - 1463-9076

VL - In press

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

ER -

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

Abstract

Keywords

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Projects

Inorganic Bulk Heterojunction: Inorganic Bulk Heterojunction for high efficiency in solar cell devices

Datasets

Optoelectronic Applications of Lead Halide Perovskites (thesis data)

Probing the Structure-Property-Composition Relationship in Organic-Inorganic Tri-halide Perovskites (dataset)

Cite this