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Organic photovoltaic cells – promising indoor light harvesters for self-sustainable electronics

Harrison Ka Hin Lee, Jiaying Wu, Jérémy Barbé, Sagar Jain, Sebastian Wood, Emily M. Speller, Zhe Li, Fernando A. Castro, James Durrant Orcid Logo, Wing Chung Tsoi, Wing Chung Tsoi Orcid Logo

Journal of Materials Chemistry A, Issue: 14

Swansea University Authors: Sagar Jain, James Durrant Orcid Logo, Wing Chung Tsoi Orcid Logo

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DOI (Published version): 10.1039/C7TA10875C

Abstract

Photovoltaic cells are attracting significant interest for harvesting indoor light for low power consumption wireless electronics such as those required for smart homes and offices, and the rapidly-growing Internet of Things. Here, we explore the potential of solution processable, small molecule pho...

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Published in: Journal of Materials Chemistry A
ISSN: 2050-7488 2050-7496
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa37805
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spelling 2020-07-13T17:10:30.3369324 v2 37805 2018-01-03 Organic photovoltaic cells – promising indoor light harvesters for self-sustainable electronics 7073e179bb5b82db3e3efd3a8cd07139 Sagar Jain Sagar Jain true false f3dd64bc260e5c07adfa916c27dbd58a 0000-0001-8353-7345 James Durrant James Durrant true false 7e5f541df6635a9a8e1a579ff2de5d56 0000-0003-3836-5139 Wing Chung Tsoi Wing Chung Tsoi true false 2018-01-03 EEN Photovoltaic cells are attracting significant interest for harvesting indoor light for low power consumption wireless electronics such as those required for smart homes and offices, and the rapidly-growing Internet of Things. Here, we explore the potential of solution processable, small molecule photovoltaic cells as indoor power sources. By optimizing solvent vapour annealing (SVA) time to the photovoltaic layer, a balance between its crystallization and phase separation is obtained, resulting in a record power conversion efficiency of over 28 % under fluorescent lamps of 1000 lux, generating a maximum power density of 78.2 µW/cm2 (&#62;10 % efficiency under AM1.5G). This high indoor performance surpasses silicon based photovoltaic cells, and is similar to gallium arsenide photovoltaic cells. Besides, the ratios of the voltage at maximum power point to the open circuit voltage are similar from indoor lighting to one sun condition, which is unique and allows a less power consuming method to track the maximum power point for a broad range of light intensities (potentially attractive for wearable PV). New insight on the effect of SVA to the indoor and one sun performance is provided by advanced optoelectronic characterization techniques, which shows that the mobility-lifetime products as a function of charge carrier density can be correlated well to the performance at different light levels. Our results suggest that organic photovoltaic cell could be promising as indoor power source for self-sustainable electronics. Journal Article Journal of Materials Chemistry A 14 2050-7488 2050-7496 31 12 2018 2018-12-31 10.1039/C7TA10875C COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2020-07-13T17:10:30.3369324 2018-01-03T10:05:27.1282410 Harrison Ka Hin Lee 1 Jiaying Wu 2 Jérémy Barbé 3 Sagar Jain 4 Sebastian Wood 5 Emily M. Speller 6 Zhe Li 7 Fernando A. Castro 8 James Durrant 0000-0001-8353-7345 9 Wing Chung Tsoi 10 Wing Chung Tsoi 0000-0003-3836-5139 11 0037805-03012018100718.pdf lee2017v3.pdf 2018-01-03T10:07:18.7630000 Output 1569984 application/pdf Accepted Manuscript true 2018-12-18T00:00:00.0000000 true eng
title Organic photovoltaic cells – promising indoor light harvesters for self-sustainable electronics
spellingShingle Organic photovoltaic cells – promising indoor light harvesters for self-sustainable electronics
Sagar Jain
James Durrant
Wing Chung Tsoi
title_short Organic photovoltaic cells – promising indoor light harvesters for self-sustainable electronics
title_full Organic photovoltaic cells – promising indoor light harvesters for self-sustainable electronics
title_fullStr Organic photovoltaic cells – promising indoor light harvesters for self-sustainable electronics
title_full_unstemmed Organic photovoltaic cells – promising indoor light harvesters for self-sustainable electronics
title_sort Organic photovoltaic cells – promising indoor light harvesters for self-sustainable electronics
author_id_str_mv 7073e179bb5b82db3e3efd3a8cd07139
f3dd64bc260e5c07adfa916c27dbd58a
7e5f541df6635a9a8e1a579ff2de5d56
author_id_fullname_str_mv 7073e179bb5b82db3e3efd3a8cd07139_***_Sagar Jain
f3dd64bc260e5c07adfa916c27dbd58a_***_James Durrant
7e5f541df6635a9a8e1a579ff2de5d56_***_Wing Chung Tsoi
author Sagar Jain
James Durrant
Wing Chung Tsoi
author2 Harrison Ka Hin Lee
Jiaying Wu
Jérémy Barbé
Sagar Jain
Sebastian Wood
Emily M. Speller
Zhe Li
Fernando A. Castro
James Durrant
Wing Chung Tsoi
Wing Chung Tsoi
format Journal article
container_title Journal of Materials Chemistry A
container_issue 14
publishDate 2018
institution Swansea University
issn 2050-7488
2050-7496
doi_str_mv 10.1039/C7TA10875C
document_store_str 1
active_str 0
description Photovoltaic cells are attracting significant interest for harvesting indoor light for low power consumption wireless electronics such as those required for smart homes and offices, and the rapidly-growing Internet of Things. Here, we explore the potential of solution processable, small molecule photovoltaic cells as indoor power sources. By optimizing solvent vapour annealing (SVA) time to the photovoltaic layer, a balance between its crystallization and phase separation is obtained, resulting in a record power conversion efficiency of over 28 % under fluorescent lamps of 1000 lux, generating a maximum power density of 78.2 µW/cm2 (&#62;10 % efficiency under AM1.5G). This high indoor performance surpasses silicon based photovoltaic cells, and is similar to gallium arsenide photovoltaic cells. Besides, the ratios of the voltage at maximum power point to the open circuit voltage are similar from indoor lighting to one sun condition, which is unique and allows a less power consuming method to track the maximum power point for a broad range of light intensities (potentially attractive for wearable PV). New insight on the effect of SVA to the indoor and one sun performance is provided by advanced optoelectronic characterization techniques, which shows that the mobility-lifetime products as a function of charge carrier density can be correlated well to the performance at different light levels. Our results suggest that organic photovoltaic cell could be promising as indoor power source for self-sustainable electronics.
published_date 2018-12-31T03:47:40Z
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