Journal of Materials Chemistry C

, том 7 , издание 18 , страницы 5285-5292

Effect of density of surface defects on photoluminescence properties in MAPbI₃ perovskite films

Paul Fassl ^{1, 2, 3, 4, 5, 6, 7}

Y. Zakharko ^{4, 5, 6, 8, 9}

Lukas M Falk ^{1, 2, 3, 4, 5, 6, 7}

Katelyn P Goetz ^{1, 2, 3, 4, 5, 6, 7}

Fabian Paulus ^{1, 2, 8}

Alexander D Taylor ^{1, 2, 3, 4, 5, 6, 7}

Jana Zaumseil ^{2, 4, 5, 6, 7, 8, 9}

Y. Vaynzof ^{1, 2, 3, 4, 5, 6, 7}

Скрыть аффилиации авторов Показать аффилиации авторов: 9 аффилиаций

Kirchhoff Institute for Physics, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany |

Centre for Advanced Materials, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 225, 69120 Heidelberg, Germany |

Kirchhoff Institute for Physics

⁴

Ruprecht-Karls-Universität Heidelberg |

⁵

69120 Heidelberg

⁶

GERMANY |

⁷

Centre for Advanced Materials

⁸

Physical Chemistry Institute, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany |

⁹

Physical Chemistry Institute

Тип публикации: Journal Article

Дата публикации: 2019-02-05

Royal Society of Chemistry (RSC)

Journal of Materials Chemistry C

scimago Q1

wos Q1

БС1

SJR: 1.220

CiteScore: 9.3

Impact factor: 5.1

ISSN: 20507526, 20507534

DOI: 10.1039/c8tc05998e

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Materials Chemistry

General Chemistry

Краткое описание

In this work we investigate the effect of tuning the density of surface defects of methylammonium lead triiodide (MAPbI3) perovskite films on their photoluminescence (PL) properties. Control over the density of defects is achieved by fractionally changing the perovskite precursor stoichiometry, which results in a gradual change in the I− and MA+ vacancy/interstitial densities. PL spectroscopy studies reveal that an increase in stoichiometry results in both a lower initial PL and a lower enhancement upon exposure to light in the ambient environment. Confocal PL microscopy and time resolved studies show that the heterogeneity in emission properties across the samples is also closely related to the spatial distribution of the density of surface defects. Our results show that while the overall density of defects dictates the initial PL, it is the density of shallow defects that determines the evolution of the PL with time.

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Марунченко Александр

11 публикаций, 101 цитирование, 4 рецензии

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Лундский университет

Университет ИТМО

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Сингх Трилок

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Индийский институт технологии в Дели

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Fassl P. et al. Effect of density of surface defects on photoluminescence properties in MAPbI3 perovskite films // Journal of Materials Chemistry C. 2019. Vol. 7. No. 18. pp. 5285-5292.

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Fassl P., Zakharko Y., Falk L. M., Goetz K. P., Paulus F., Taylor A. D., Zaumseil J., Vaynzof Y. Effect of density of surface defects on photoluminescence properties in MAPbI3 perovskite films // Journal of Materials Chemistry C. 2019. Vol. 7. No. 18. pp. 5285-5292.

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TY - JOUR

DO - 10.1039/c8tc05998e

UR - https://xlink.rsc.org/?DOI=C8TC05998E

TI - Effect of density of surface defects on photoluminescence properties in MAPbI3 perovskite films

T2 - Journal of Materials Chemistry C

AU - Fassl, Paul

AU - Zakharko, Y.

AU - Falk, Lukas M

AU - Goetz, Katelyn P

AU - Paulus, Fabian

AU - Taylor, Alexander D

AU - Zaumseil, Jana

AU - Vaynzof, Y.

PY - 2019

DA - 2019/02/05

PB - Royal Society of Chemistry (RSC)

SP - 5285-5292

IS - 18

VL - 7

SN - 2050-7526

SN - 2050-7534

ER -

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@article{2019_Fassl,

author = {Paul Fassl and Y. Zakharko and Lukas M Falk and Katelyn P Goetz and Fabian Paulus and Alexander D Taylor and Jana Zaumseil and Y. Vaynzof},

title = {Effect of density of surface defects on photoluminescence properties in MAPbI3 perovskite films},

journal = {Journal of Materials Chemistry C},

year = {2019},

volume = {7},

publisher = {Royal Society of Chemistry (RSC)},

month = {feb},

url = {https://xlink.rsc.org/?DOI=C8TC05998E},

number = {18},

pages = {5285--5292},

doi = {10.1039/c8tc05998e}

}

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Fassl, Paul, et al. “Effect of density of surface defects on photoluminescence properties in MAPbI3 perovskite films.” Journal of Materials Chemistry C, vol. 7, no. 18, Feb. 2019, pp. 5285-5292. https://xlink.rsc.org/?DOI=C8TC05998E.