Self-Crystallized Multifunctional 2D Perovskite for Efficient and Stable Perovskite Solar Cells

Hobeom Kim; Mingyuan Pei; Yonghui Lee; Albertus A. Sutanto; Sanghyun Paek; Valentin I.E. Queloz; Aron J. Huckaba; Kyung Taek Cho; Hyung Joong Yun; Hoichang Yang; Mohammad Khaja Nazeeruddin

doi:10.1002/adfm.201910620

Self-Crystallized Multifunctional 2D Perovskite for Efficient and Stable Perovskite Solar Cells

Hobeom Kim, Mingyuan Pei, Yonghui Lee, Albertus A. Sutanto, Sanghyun Paek, Valentin I.E. Queloz, Aron J. Huckaba, Kyung Taek Cho, Hyung Joong Yun, Hoichang Yang, Mohammad Khaja Nazeeruddin

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

59 Scopus citations

Abstract

Recently, perovskite solar cells (PSC) with high power-conversion efficiency (PCE) and long-term stability have been achieved by employing 2D perovskite layers on 3D perovskite light absorbers. However, in-depth studies on the material and the interface between the two perovskite layers are still required to understand the role of the 2D perovskite in PSCs. Self-crystallization of 2D perovskite is successfully induced by deposition of benzyl ammonium iodide (BnAI) on top of a 3D perovskite light absorber. The self-crystallized 2D perovskite can perform a multifunctional role in facilitating hole transfer, owing to its random crystalline orientation and passivating traps in the 3D perovskite. The use of the multifunctional 2D perovskite (M2P) leads to improvement in PCE and long-term stability of PSCs both with and without organic hole transporting material (HTM), 2,2′,7,7′-tetrakis-(N,N-di-p-methoxyphenyl-amine)-9,9′-spirobifluorene (spiro-OMeTAD) compared to the devices without the M2P.

Original language	English
Article number	1910620
Journal	Advanced Functional Materials
Volume	30
Issue number	19
DOIs	https://doi.org/10.1002/adfm.201910620
State	Published - May 1 2020

Bibliographical note

Funding Information:
This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 763989. This publication reflects only the author's views and the European Union is not liable for any use that may be made of the information contained therein. The authors acknowledge the Swiss National Science Foundation (SNSF) funding through the Synergia Grant EPISODE (Grant No. CRSII5_171000). H.Y. thanks for the financial support from the industrial Fundamental Technology Development Program (Grant No. 10051440) funded by the Ministry of Trade, Industry and Energy (MOTIE), Korea.

Funding Information:
This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 763989. This publication reflects only the author's views and the European Union is not liable for any use that may be made of the information contained therein. The authors acknowledge the Swiss National Science Foundation (SNSF) funding through the Synergia Grant EPISODE (Grant No. CRSII5_171000). H.Y. thanks for the financial support from the industrial Fundamental Technology Development Program (Grant No. 10051440) funded by the Ministry of Trade, Industry and Energy (MOTIE), Korea.

Publisher Copyright:
© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

2D perovskites
hole-transfer facilitators
hole-transporting layers
perovskite solar cells
trap passivation

ASJC Scopus subject areas

Chemistry (all)
Materials Science (all)
Condensed Matter Physics

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10.1002/adfm.201910620

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title = "Self-Crystallized Multifunctional 2D Perovskite for Efficient and Stable Perovskite Solar Cells",

abstract = "Recently, perovskite solar cells (PSC) with high power-conversion efficiency (PCE) and long-term stability have been achieved by employing 2D perovskite layers on 3D perovskite light absorbers. However, in-depth studies on the material and the interface between the two perovskite layers are still required to understand the role of the 2D perovskite in PSCs. Self-crystallization of 2D perovskite is successfully induced by deposition of benzyl ammonium iodide (BnAI) on top of a 3D perovskite light absorber. The self-crystallized 2D perovskite can perform a multifunctional role in facilitating hole transfer, owing to its random crystalline orientation and passivating traps in the 3D perovskite. The use of the multifunctional 2D perovskite (M2P) leads to improvement in PCE and long-term stability of PSCs both with and without organic hole transporting material (HTM), 2,2′,7,7′-tetrakis-(N,N-di-p-methoxyphenyl-amine)-9,9′-spirobifluorene (spiro-OMeTAD) compared to the devices without the M2P.",

keywords = "2D perovskites, hole-transfer facilitators, hole-transporting layers, perovskite solar cells, trap passivation",

author = "Hobeom Kim and Mingyuan Pei and Yonghui Lee and Sutanto, {Albertus A.} and Sanghyun Paek and Queloz, {Valentin I.E.} and Huckaba, {Aron J.} and Cho, {Kyung Taek} and Yun, {Hyung Joong} and Hoichang Yang and Nazeeruddin, {Mohammad Khaja}",

note = "Funding Information: This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 763989. This publication reflects only the author's views and the European Union is not liable for any use that may be made of the information contained therein. The authors acknowledge the Swiss National Science Foundation (SNSF) funding through the Synergia Grant EPISODE (Grant No. CRSII5_171000). H.Y. thanks for the financial support from the industrial Fundamental Technology Development Program (Grant No. 10051440) funded by the Ministry of Trade, Industry and Energy (MOTIE), Korea. Funding Information: This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 763989. This publication reflects only the author's views and the European Union is not liable for any use that may be made of the information contained therein. The authors acknowledge the Swiss National Science Foundation (SNSF) funding through the Synergia Grant EPISODE (Grant No. CRSII5_171000). H.Y. thanks for the financial support from the industrial Fundamental Technology Development Program (Grant No. 10051440) funded by the Ministry of Trade, Industry and Energy (MOTIE), Korea. Publisher Copyright: {\textcopyright} 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

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AU - Kim, Hobeom

AU - Pei, Mingyuan

AU - Lee, Yonghui

AU - Sutanto, Albertus A.

AU - Paek, Sanghyun

AU - Queloz, Valentin I.E.

AU - Huckaba, Aron J.

AU - Cho, Kyung Taek

AU - Yun, Hyung Joong

AU - Yang, Hoichang

AU - Nazeeruddin, Mohammad Khaja

N1 - Funding Information: This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 763989. This publication reflects only the author's views and the European Union is not liable for any use that may be made of the information contained therein. The authors acknowledge the Swiss National Science Foundation (SNSF) funding through the Synergia Grant EPISODE (Grant No. CRSII5_171000). H.Y. thanks for the financial support from the industrial Fundamental Technology Development Program (Grant No. 10051440) funded by the Ministry of Trade, Industry and Energy (MOTIE), Korea. Funding Information: This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 763989. This publication reflects only the author's views and the European Union is not liable for any use that may be made of the information contained therein. The authors acknowledge the Swiss National Science Foundation (SNSF) funding through the Synergia Grant EPISODE (Grant No. CRSII5_171000). H.Y. thanks for the financial support from the industrial Fundamental Technology Development Program (Grant No. 10051440) funded by the Ministry of Trade, Industry and Energy (MOTIE), Korea. Publisher Copyright: © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2020/5/1

Y1 - 2020/5/1

N2 - Recently, perovskite solar cells (PSC) with high power-conversion efficiency (PCE) and long-term stability have been achieved by employing 2D perovskite layers on 3D perovskite light absorbers. However, in-depth studies on the material and the interface between the two perovskite layers are still required to understand the role of the 2D perovskite in PSCs. Self-crystallization of 2D perovskite is successfully induced by deposition of benzyl ammonium iodide (BnAI) on top of a 3D perovskite light absorber. The self-crystallized 2D perovskite can perform a multifunctional role in facilitating hole transfer, owing to its random crystalline orientation and passivating traps in the 3D perovskite. The use of the multifunctional 2D perovskite (M2P) leads to improvement in PCE and long-term stability of PSCs both with and without organic hole transporting material (HTM), 2,2′,7,7′-tetrakis-(N,N-di-p-methoxyphenyl-amine)-9,9′-spirobifluorene (spiro-OMeTAD) compared to the devices without the M2P.

AB - Recently, perovskite solar cells (PSC) with high power-conversion efficiency (PCE) and long-term stability have been achieved by employing 2D perovskite layers on 3D perovskite light absorbers. However, in-depth studies on the material and the interface between the two perovskite layers are still required to understand the role of the 2D perovskite in PSCs. Self-crystallization of 2D perovskite is successfully induced by deposition of benzyl ammonium iodide (BnAI) on top of a 3D perovskite light absorber. The self-crystallized 2D perovskite can perform a multifunctional role in facilitating hole transfer, owing to its random crystalline orientation and passivating traps in the 3D perovskite. The use of the multifunctional 2D perovskite (M2P) leads to improvement in PCE and long-term stability of PSCs both with and without organic hole transporting material (HTM), 2,2′,7,7′-tetrakis-(N,N-di-p-methoxyphenyl-amine)-9,9′-spirobifluorene (spiro-OMeTAD) compared to the devices without the M2P.

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KW - trap passivation

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Self-Crystallized Multifunctional 2D Perovskite for Efficient and Stable Perovskite Solar Cells

Abstract

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Keywords

ASJC Scopus subject areas

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