Van der Waals Force-Assisted Heat-Transfer Engineering for Overcoming Limited Efficiency of Flexible Perovskite Solar Cells

Oh Yeong Gong; Gill Sang Han; Sangmyeong Lee; Min Kyeong Seo; Changhwun Sohn; Geon Woo Yoon; Jihun Jang; Jae Myeong Lee; Jin Hyuk Choi; Do Kyoung Lee; Seok Beom Kang; Mansoo Choi; Nam Gyu Park; Dong Hoe Kim; Hyun Suk Jung

doi:10.1021/acsenergylett.2c01391

Van der Waals Force-Assisted Heat-Transfer Engineering for Overcoming Limited Efficiency of Flexible Perovskite Solar Cells

Oh Yeong Gong, Gill Sang Han, Sangmyeong Lee, Min Kyeong Seo, Changhwun Sohn, Geon Woo Yoon, Jihun Jang, Jae Myeong Lee, Jin Hyuk Choi, Do Kyoung Lee, Seok Beom Kang, Mansoo Choi, Nam Gyu Park, Dong Hoe Kim, Hyun Suk Jung

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

19 Citations (Scopus)

Abstract

Flexible perovskite solar cells (f-PSCs) have attracted increasing attention for a variety of applications because of their desirable form factor and improved durability. However, the f-PSC fabrication process has not been optimized, resulting in their uneven efficiency. We report a van der Waals stacking (vdWS) process that yields uniform and highly crystalline perovskite films on flexible substrates by uniform heat transfer during the perovskite annealing process. In addition, the surface and grain boundary defects on the perovskite film were effectively minimized with the vacuum-assisted passivation post-treatment; accordingly, the environmental and mechanical stabilities of f-PSCs were enhanced. Also, the best f-PSC with an active area of 0.14 cm²achieved power conversion efficiencies (PCEs) of 41.23% and 22.54% under 1000 lx and 1 sun illuminations, respectively. Furthermore, the vdWS process showed scalable uniformity through flexible perovskite solar minimodules with a certified PCE of 18.35% in an active area of 48.90

Original language	English
Pages (from-to)	2893-2903
Number of pages	11
Journal	ACS Energy Letters
Volume	7
Issue number	9
DOIs	https://doi.org/10.1021/acsenergylett.2c01391
Publication status	Published - 2022 Sept 9

Bibliographical note

Funding Information:
This research was supported by the National Research Foundation of Korea (NRF, 2020R1A2C1102718, 2020R1A4A2002161, and 2021R1A3B1076723) and the Institute of Information & Communications Technology Planning & Evaluation (IITP, 2020-0-00541) funded by the Ministry of Science and ICT (MSIT) of Republic of Korea. This research was supported by the Korea Evaluation Institute of Industrial Technology (KEIT, 20016588) and Korea Institute of Energy Technology Evaluation and Planning (KETEP, 20203040010320) funded by the Ministry of Trade, Industry and Energy (MOTIE) of Republic of Korea.

Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.

ASJC Scopus subject areas

Chemistry (miscellaneous)
Renewable Energy, Sustainability and the Environment
Fuel Technology
Energy Engineering and Power Technology
Materials Chemistry

UN SDGs

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

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10.1021/acsenergylett.2c01391

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Gong, O. Y., Han, G. S., Lee, S., Seo, M. K., Sohn, C., Yoon, G. W., Jang, J., Lee, J. M., Choi, J. H., Lee, D. K., Kang, S. B., Choi, M., Park, N. G., Kim, D. H., & Jung, H. S. (2022). Van der Waals Force-Assisted Heat-Transfer Engineering for Overcoming Limited Efficiency of Flexible Perovskite Solar Cells. ACS Energy Letters, 7(9), 2893-2903. https://doi.org/10.1021/acsenergylett.2c01391

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title = "Van der Waals Force-Assisted Heat-Transfer Engineering for Overcoming Limited Efficiency of Flexible Perovskite Solar Cells",

abstract = "Flexible perovskite solar cells (f-PSCs) have attracted increasing attention for a variety of applications because of their desirable form factor and improved durability. However, the f-PSC fabrication process has not been optimized, resulting in their uneven efficiency. We report a van der Waals stacking (vdWS) process that yields uniform and highly crystalline perovskite films on flexible substrates by uniform heat transfer during the perovskite annealing process. In addition, the surface and grain boundary defects on the perovskite film were effectively minimized with the vacuum-assisted passivation post-treatment; accordingly, the environmental and mechanical stabilities of f-PSCs were enhanced. Also, the best f-PSC with an active area of 0.14 cm2achieved power conversion efficiencies (PCEs) of 41.23% and 22.54% under 1000 lx and 1 sun illuminations, respectively. Furthermore, the vdWS process showed scalable uniformity through flexible perovskite solar minimodules with a certified PCE of 18.35% in an active area of 48.90",

author = "Gong, {Oh Yeong} and Han, {Gill Sang} and Sangmyeong Lee and Seo, {Min Kyeong} and Changhwun Sohn and Yoon, {Geon Woo} and Jihun Jang and Lee, {Jae Myeong} and Choi, {Jin Hyuk} and Lee, {Do Kyoung} and Kang, {Seok Beom} and Mansoo Choi and Park, {Nam Gyu} and Kim, {Dong Hoe} and Jung, {Hyun Suk}",

note = "Funding Information: This research was supported by the National Research Foundation of Korea (NRF, 2020R1A2C1102718, 2020R1A4A2002161, and 2021R1A3B1076723) and the Institute of Information & Communications Technology Planning & Evaluation (IITP, 2020-0-00541) funded by the Ministry of Science and ICT (MSIT) of Republic of Korea. This research was supported by the Korea Evaluation Institute of Industrial Technology (KEIT, 20016588) and Korea Institute of Energy Technology Evaluation and Planning (KETEP, 20203040010320) funded by the Ministry of Trade, Industry and Energy (MOTIE) of Republic of Korea. Publisher Copyright: {\textcopyright} 2022 American Chemical Society. All rights reserved.",

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AU - Gong, Oh Yeong

AU - Han, Gill Sang

AU - Lee, Sangmyeong

AU - Seo, Min Kyeong

AU - Sohn, Changhwun

AU - Yoon, Geon Woo

AU - Jang, Jihun

AU - Lee, Jae Myeong

AU - Choi, Jin Hyuk

AU - Lee, Do Kyoung

AU - Kang, Seok Beom

AU - Choi, Mansoo

AU - Park, Nam Gyu

AU - Kim, Dong Hoe

AU - Jung, Hyun Suk

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PY - 2022/9/9

Y1 - 2022/9/9

N2 - Flexible perovskite solar cells (f-PSCs) have attracted increasing attention for a variety of applications because of their desirable form factor and improved durability. However, the f-PSC fabrication process has not been optimized, resulting in their uneven efficiency. We report a van der Waals stacking (vdWS) process that yields uniform and highly crystalline perovskite films on flexible substrates by uniform heat transfer during the perovskite annealing process. In addition, the surface and grain boundary defects on the perovskite film were effectively minimized with the vacuum-assisted passivation post-treatment; accordingly, the environmental and mechanical stabilities of f-PSCs were enhanced. Also, the best f-PSC with an active area of 0.14 cm2achieved power conversion efficiencies (PCEs) of 41.23% and 22.54% under 1000 lx and 1 sun illuminations, respectively. Furthermore, the vdWS process showed scalable uniformity through flexible perovskite solar minimodules with a certified PCE of 18.35% in an active area of 48.90

AB - Flexible perovskite solar cells (f-PSCs) have attracted increasing attention for a variety of applications because of their desirable form factor and improved durability. However, the f-PSC fabrication process has not been optimized, resulting in their uneven efficiency. We report a van der Waals stacking (vdWS) process that yields uniform and highly crystalline perovskite films on flexible substrates by uniform heat transfer during the perovskite annealing process. In addition, the surface and grain boundary defects on the perovskite film were effectively minimized with the vacuum-assisted passivation post-treatment; accordingly, the environmental and mechanical stabilities of f-PSCs were enhanced. Also, the best f-PSC with an active area of 0.14 cm2achieved power conversion efficiencies (PCEs) of 41.23% and 22.54% under 1000 lx and 1 sun illuminations, respectively. Furthermore, the vdWS process showed scalable uniformity through flexible perovskite solar minimodules with a certified PCE of 18.35% in an active area of 48.90

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Van der Waals Force-Assisted Heat-Transfer Engineering for Overcoming Limited Efficiency of Flexible Perovskite Solar Cells

Abstract

Bibliographical note

ASJC Scopus subject areas

UN SDGs

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