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Toward Visibly Transparent Organic Photovoltaic Cells Based on a Near-Infrared Harvesting Bulk Heterojunction Blend / Jinho Lee, Hyojung Cha, Huifeng Yao, Jianhui Hou, Yo-Han Suh, Soyeong Jeong, Kwanghee Lee, James Durrant

ACS Applied Materials & Interfaces, Volume: 12, Issue: 29, Pages: 32764 - 32770

Swansea University Author: James Durrant

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DOI (Published version): 10.1021/acsami.0c08037

Abstract

Wavelength-selective harvesting by organic solar cells (OSCs) has attracted significant research attention due to the unique potential of these materials for smart photovoltaic window applications. Here, a visibly transparent OSC is demonstrated by utilizing both near-infrared (NIR)-absorbing polyme...

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Published in: ACS Applied Materials & Interfaces
ISSN: 1944-8244 1944-8252
Published: American Chemical Society (ACS) 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa54871
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first_indexed 2020-08-04T15:23:23Z
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spelling 2020-09-28T14:52:54.5784294 v2 54871 2020-08-04 Toward Visibly Transparent Organic Photovoltaic Cells Based on a Near-Infrared Harvesting Bulk Heterojunction Blend f3dd64bc260e5c07adfa916c27dbd58a 0000-0001-8353-7345 James Durrant James Durrant true false 2020-08-04 MTLS Wavelength-selective harvesting by organic solar cells (OSCs) has attracted significant research attention due to the unique potential of these materials for smart photovoltaic window applications. Here, a visibly transparent OSC is demonstrated by utilizing both near-infrared (NIR)-absorbing polymer donor and nonfullerene acceptor (NFA) materials with narrow optical band gaps of less than 1.4 eV. Despite the substantial overlap in absorption spectra between the donor and acceptor, sufficient lowest unoccupied molecular orbital (LUMO) and highest occupied molecule orbital (HOMO) energy offsets for efficient charge separation with concurrent very low voltage losses yield a power conversion efficiency (PCE) of 9.13%. Moreover, with the introduction of an ultrathin Ag film (8 nm) as a transparent top electrode, semitransparent OSCs exhibit an excellent dual-side photovoltaic performance of 5.7 and 3.9% under bottom and top illumination, respectively, with high transmittance reaching 60% at wavelengths from 400 to 600 nm. This approach is expected to provide a new perspective in developing the highly efficient and transparent OSCs. Journal Article ACS Applied Materials & Interfaces 12 29 32764 32770 American Chemical Society (ACS) 1944-8244 1944-8252 polymer solar cells, nonfullerene acceptor, visibly transparent, semitransparent, near-infrared 22 7 2020 2020-07-22 10.1021/acsami.0c08037 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2020-09-28T14:52:54.5784294 2020-08-04T16:22:16.9405622 College of Engineering Engineering Jinho Lee 1 Hyojung Cha 2 Huifeng Yao 3 Jianhui Hou 4 Yo-Han Suh 5 Soyeong Jeong 6 Kwanghee Lee 7 James Durrant 0000-0001-8353-7345 8
title Toward Visibly Transparent Organic Photovoltaic Cells Based on a Near-Infrared Harvesting Bulk Heterojunction Blend
spellingShingle Toward Visibly Transparent Organic Photovoltaic Cells Based on a Near-Infrared Harvesting Bulk Heterojunction Blend
James, Durrant
title_short Toward Visibly Transparent Organic Photovoltaic Cells Based on a Near-Infrared Harvesting Bulk Heterojunction Blend
title_full Toward Visibly Transparent Organic Photovoltaic Cells Based on a Near-Infrared Harvesting Bulk Heterojunction Blend
title_fullStr Toward Visibly Transparent Organic Photovoltaic Cells Based on a Near-Infrared Harvesting Bulk Heterojunction Blend
title_full_unstemmed Toward Visibly Transparent Organic Photovoltaic Cells Based on a Near-Infrared Harvesting Bulk Heterojunction Blend
title_sort Toward Visibly Transparent Organic Photovoltaic Cells Based on a Near-Infrared Harvesting Bulk Heterojunction Blend
author_id_str_mv f3dd64bc260e5c07adfa916c27dbd58a
author_id_fullname_str_mv f3dd64bc260e5c07adfa916c27dbd58a_***_James, Durrant
author James, Durrant
author2 Jinho Lee
Hyojung Cha
Huifeng Yao
Jianhui Hou
Yo-Han Suh
Soyeong Jeong
Kwanghee Lee
James Durrant
format Journal article
container_title ACS Applied Materials & Interfaces
container_volume 12
container_issue 29
container_start_page 32764
publishDate 2020
institution Swansea University
issn 1944-8244
1944-8252
doi_str_mv 10.1021/acsami.0c08037
publisher American Chemical Society (ACS)
college_str College of Engineering
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hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
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description Wavelength-selective harvesting by organic solar cells (OSCs) has attracted significant research attention due to the unique potential of these materials for smart photovoltaic window applications. Here, a visibly transparent OSC is demonstrated by utilizing both near-infrared (NIR)-absorbing polymer donor and nonfullerene acceptor (NFA) materials with narrow optical band gaps of less than 1.4 eV. Despite the substantial overlap in absorption spectra between the donor and acceptor, sufficient lowest unoccupied molecular orbital (LUMO) and highest occupied molecule orbital (HOMO) energy offsets for efficient charge separation with concurrent very low voltage losses yield a power conversion efficiency (PCE) of 9.13%. Moreover, with the introduction of an ultrathin Ag film (8 nm) as a transparent top electrode, semitransparent OSCs exhibit an excellent dual-side photovoltaic performance of 5.7 and 3.9% under bottom and top illumination, respectively, with high transmittance reaching 60% at wavelengths from 400 to 600 nm. This approach is expected to provide a new perspective in developing the highly efficient and transparent OSCs.
published_date 2020-07-22T04:23:19Z
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