High-Efficiency Low-Temperature ZnO Based Perovskite Solar Cells Based on Highly Polar, Nonwetting Self-Assembled Molecular Layers

Randi Azmi; Wisnu Tantyo Hadmojo; Septy Sinaga; Chang Lyoul Lee; Sung Cheol Yoon; In Hwan Jung; Sung Yeon Jang

doi:10.1002/aenm.201701683

High-Efficiency Low-Temperature ZnO Based Perovskite Solar Cells Based on Highly Polar, Nonwetting Self-Assembled Molecular Layers

Randi Azmi, Wisnu Tantyo Hadmojo, Septy Sinaga, Chang Lyoul Lee, Sung Cheol Yoon, In Hwan Jung^*, Sung Yeon Jang

^*Corresponding author for this work

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

177 Scopus citations

Abstract

Herein, this study reports high-efficiency, low-temperature ZnO based planar perovskite solar cells (PSCs) with state-of-the-art performance. They are achieved via a strategy that combines dual-functional self-assembled monolayer (SAM) modification of ZnO electron accepting layers (EALs) with sequential deposition of perovskite active layers. The SAMs, constructed from newly synthesized molecules with high dipole moments, act both as excellent surface wetting control layers and as electric dipole layers for ZnO-EALs. The insertion of SAMs improves the quality of PbI₂ layers and final perovskite layers during sequential deposition, while charge extraction is enhanced via electric dipole effects. Leveraged by SAM modification, our low-temperature ZnO based PSCs achieve an unprecedentedly high power conversion efficiency of 18.82% with a V_OC of 1.13 V, a J_SC of 21.72 mA cm⁻², and a FF of 0.76. The strategy used in this study can be further developed to produce additional performance enhancements or fabrication temperature reductions.

Original language	English (US)
Article number	1701683
Journal	Advanced Energy Materials
Volume	8
Issue number	5
DOIs	https://doi.org/10.1002/aenm.201701683
State	Published - Feb 15 2018

Bibliographical note

Funding Information:
The authors gratefully acknowledge support from the National Research Foundation (NRF) Grant funded by the Korean Government (MSIP, No. 2017M2A2A6A01020854, No. 2016R1A5A1012966, No. 2017R1A2B2009178, No. 2017R1C1B2010694), the Technology Development Program to Solve Climate Changes of the National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning (No. 2016M1A2A2940912), and the Global Scholarship Program for Foreign Graduate Students at Kookmin University in Korea.

Publisher Copyright:
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

electric dipole layer
perovskite solar cells
self-assembled layer
sequential deposition
surface wetting

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Materials Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/aenm.201701683

Cite this

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title = "High-Efficiency Low-Temperature ZnO Based Perovskite Solar Cells Based on Highly Polar, Nonwetting Self-Assembled Molecular Layers",

abstract = "Herein, this study reports high-efficiency, low-temperature ZnO based planar perovskite solar cells (PSCs) with state-of-the-art performance. They are achieved via a strategy that combines dual-functional self-assembled monolayer (SAM) modification of ZnO electron accepting layers (EALs) with sequential deposition of perovskite active layers. The SAMs, constructed from newly synthesized molecules with high dipole moments, act both as excellent surface wetting control layers and as electric dipole layers for ZnO-EALs. The insertion of SAMs improves the quality of PbI2 layers and final perovskite layers during sequential deposition, while charge extraction is enhanced via electric dipole effects. Leveraged by SAM modification, our low-temperature ZnO based PSCs achieve an unprecedentedly high power conversion efficiency of 18.82% with a VOC of 1.13 V, a JSC of 21.72 mA cm−2, and a FF of 0.76. The strategy used in this study can be further developed to produce additional performance enhancements or fabrication temperature reductions.",

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author = "Randi Azmi and Hadmojo, {Wisnu Tantyo} and Septy Sinaga and Lee, {Chang Lyoul} and Yoon, {Sung Cheol} and Jung, {In Hwan} and Jang, {Sung Yeon}",

note = "Funding Information: The authors gratefully acknowledge support from the National Research Foundation (NRF) Grant funded by the Korean Government (MSIP, No. 2017M2A2A6A01020854, No. 2016R1A5A1012966, No. 2017R1A2B2009178, No. 2017R1C1B2010694), the Technology Development Program to Solve Climate Changes of the National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning (No. 2016M1A2A2940912), and the Global Scholarship Program for Foreign Graduate Students at Kookmin University in Korea. Publisher Copyright: {\textcopyright} 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

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AU - Lee, Chang Lyoul

AU - Yoon, Sung Cheol

AU - Jung, In Hwan

AU - Jang, Sung Yeon

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PY - 2018/2/15

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N2 - Herein, this study reports high-efficiency, low-temperature ZnO based planar perovskite solar cells (PSCs) with state-of-the-art performance. They are achieved via a strategy that combines dual-functional self-assembled monolayer (SAM) modification of ZnO electron accepting layers (EALs) with sequential deposition of perovskite active layers. The SAMs, constructed from newly synthesized molecules with high dipole moments, act both as excellent surface wetting control layers and as electric dipole layers for ZnO-EALs. The insertion of SAMs improves the quality of PbI2 layers and final perovskite layers during sequential deposition, while charge extraction is enhanced via electric dipole effects. Leveraged by SAM modification, our low-temperature ZnO based PSCs achieve an unprecedentedly high power conversion efficiency of 18.82% with a VOC of 1.13 V, a JSC of 21.72 mA cm−2, and a FF of 0.76. The strategy used in this study can be further developed to produce additional performance enhancements or fabrication temperature reductions.

AB - Herein, this study reports high-efficiency, low-temperature ZnO based planar perovskite solar cells (PSCs) with state-of-the-art performance. They are achieved via a strategy that combines dual-functional self-assembled monolayer (SAM) modification of ZnO electron accepting layers (EALs) with sequential deposition of perovskite active layers. The SAMs, constructed from newly synthesized molecules with high dipole moments, act both as excellent surface wetting control layers and as electric dipole layers for ZnO-EALs. The insertion of SAMs improves the quality of PbI2 layers and final perovskite layers during sequential deposition, while charge extraction is enhanced via electric dipole effects. Leveraged by SAM modification, our low-temperature ZnO based PSCs achieve an unprecedentedly high power conversion efficiency of 18.82% with a VOC of 1.13 V, a JSC of 21.72 mA cm−2, and a FF of 0.76. The strategy used in this study can be further developed to produce additional performance enhancements or fabrication temperature reductions.

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High-Efficiency Low-Temperature ZnO Based Perovskite Solar Cells Based on Highly Polar, Nonwetting Self-Assembled Molecular Layers

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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