Improved performance of inverted perovskite solar cells due to the incorporation of zirconium acetylacetonate buffer layer

Aditya S. Yerramilli; Yuanqing Chen; Andrew Knight; Banashree Gogoi; Lingwei Li; Yang Song; Yuxia Shen; T. L. Alford

doi:10.1016/j.solmat.2019.109927

Improved performance of inverted perovskite solar cells due to the incorporation of zirconium acetylacetonate buffer layer

Aditya S. Yerramilli, Yuanqing Chen, Andrew Knight, Banashree Gogoi, Lingwei Li, Yang Song, Yuxia Shen, T. L. Alford

Engineering of Matter, Transport and Energy, School for (IAFSE-SEMTE)

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

6 Scopus citations

Abstract

We demonstrated the use of an additional cathode layer of zirconium acetylacetonate (ZAC) prepared in IPA for Perovskite solar cells (PSC) and achieved a power conversion efficiency of 15.2%, which is about 25% higher when compared to a control device with only PCBM. Our results indicated that IPA was the best alcohol-based solvent to obtain a smooth film and also prevented any corrosion of the underlying layers. We investigated the surface effects of adding the layer and also realized an optimized concentration of 1.5 mg/ml was best for device efficiency as well as reduced the RMS to 3 nm. Dark-current time-resolved photoluminescence measurements were used to understand the effect of the thickness and concentration of the ZAC layer on the performance of the device.

Original language	English (US)
Article number	109927
Journal	Solar Energy Materials and Solar Cells
Volume	200
DOIs	https://doi.org/10.1016/j.solmat.2019.109927
State	Published - Sep 15 2019

Keywords

Alcohol-soluble
Cathode-buffer layer
Perovskite

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films

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10.1016/j.solmat.2019.109927

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@article{1c97101519b34b4ba5769d8f554289e9,

title = "Improved performance of inverted perovskite solar cells due to the incorporation of zirconium acetylacetonate buffer layer",

abstract = "We demonstrated the use of an additional cathode layer of zirconium acetylacetonate (ZAC) prepared in IPA for Perovskite solar cells (PSC) and achieved a power conversion efficiency of 15.2%, which is about 25% higher when compared to a control device with only PCBM. Our results indicated that IPA was the best alcohol-based solvent to obtain a smooth film and also prevented any corrosion of the underlying layers. We investigated the surface effects of adding the layer and also realized an optimized concentration of 1.5 mg/ml was best for device efficiency as well as reduced the RMS to 3 nm. Dark-current time-resolved photoluminescence measurements were used to understand the effect of the thickness and concentration of the ZAC layer on the performance of the device.",

keywords = "Alcohol-soluble, Cathode-buffer layer, Perovskite",

author = "Yerramilli, {Aditya S.} and Yuanqing Chen and Andrew Knight and Banashree Gogoi and Lingwei Li and Yang Song and Yuxia Shen and Alford, {T. L.}",

note = "Funding Information: This work is partially supported by the Pan African Materials Institute (PAMI) through funding from the World Bank (PAMI Grant ID ASU-NOA ) to whom the authors are greatly indebted. Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = sep,

day = "15",

doi = "10.1016/j.solmat.2019.109927",

language = "English (US)",

volume = "200",

journal = "Solar Energy Materials and Solar Cells",

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T1 - Improved performance of inverted perovskite solar cells due to the incorporation of zirconium acetylacetonate buffer layer

AU - Yerramilli, Aditya S.

AU - Chen, Yuanqing

AU - Knight, Andrew

AU - Gogoi, Banashree

AU - Li, Lingwei

AU - Song, Yang

AU - Shen, Yuxia

AU - Alford, T. L.

N1 - Funding Information: This work is partially supported by the Pan African Materials Institute (PAMI) through funding from the World Bank (PAMI Grant ID ASU-NOA ) to whom the authors are greatly indebted. Publisher Copyright: © 2019 Elsevier B.V.

PY - 2019/9/15

Y1 - 2019/9/15

N2 - We demonstrated the use of an additional cathode layer of zirconium acetylacetonate (ZAC) prepared in IPA for Perovskite solar cells (PSC) and achieved a power conversion efficiency of 15.2%, which is about 25% higher when compared to a control device with only PCBM. Our results indicated that IPA was the best alcohol-based solvent to obtain a smooth film and also prevented any corrosion of the underlying layers. We investigated the surface effects of adding the layer and also realized an optimized concentration of 1.5 mg/ml was best for device efficiency as well as reduced the RMS to 3 nm. Dark-current time-resolved photoluminescence measurements were used to understand the effect of the thickness and concentration of the ZAC layer on the performance of the device.

AB - We demonstrated the use of an additional cathode layer of zirconium acetylacetonate (ZAC) prepared in IPA for Perovskite solar cells (PSC) and achieved a power conversion efficiency of 15.2%, which is about 25% higher when compared to a control device with only PCBM. Our results indicated that IPA was the best alcohol-based solvent to obtain a smooth film and also prevented any corrosion of the underlying layers. We investigated the surface effects of adding the layer and also realized an optimized concentration of 1.5 mg/ml was best for device efficiency as well as reduced the RMS to 3 nm. Dark-current time-resolved photoluminescence measurements were used to understand the effect of the thickness and concentration of the ZAC layer on the performance of the device.

KW - Alcohol-soluble

KW - Cathode-buffer layer

KW - Perovskite

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DO - 10.1016/j.solmat.2019.109927

M3 - Article

SN - 0927-0248

VL - 200

JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

M1 - 109927

ER -

Improved performance of inverted perovskite solar cells due to the incorporation of zirconium acetylacetonate buffer layer

Abstract

Keywords

ASJC Scopus subject areas

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