Kirigami-inspired automatically self-inclining bifacial solar cell arrays to enhance energy yield under both sunny and cloudy conditions

Summary: The application of photovoltaics (PVs) is expanding in various locations ranging from industrial facilities to residential housing. The emphasized concept in the PVs field is shifting from “watt-per-cost” to “energy-yield-per-watt.” To attain a high energy yield, fixed modules are not well...

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Main Authors: Min Ju Yun, Yeon Hyang Sim, Dong Yoon Lee, Seung I. Cha
Format: Article
Language:English
Published: Elsevier 2022-07-01
Series:iScience
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S258900422200921X
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author Min Ju Yun
Yeon Hyang Sim
Dong Yoon Lee
Seung I. Cha
author_facet Min Ju Yun
Yeon Hyang Sim
Dong Yoon Lee
Seung I. Cha
author_sort Min Ju Yun
collection DOAJ
description Summary: The application of photovoltaics (PVs) is expanding in various locations ranging from industrial facilities to residential housing. The emphasized concept in the PVs field is shifting from “watt-per-cost” to “energy-yield-per-watt.” To attain a high energy yield, fixed modules are not well suited to capture both direct and omnidirectional light. To achieve a high energy yield under both light conditions, we propose a self-inclining bifacial solar cell array fabricated by integrating a photothermal actuator, which senses incident light by itself, and actuating solar cells that incline at the appropriate angle to maximize captured light. In the vertical illumination state, the specific power of the self-inclining bifacial two-cell array is 11% higher than a fixed-angle aligned array. In an outside environment with a large proportion of diffused light, the self-inclining bifacial two-cell array also shows higher performance. We expect this work to enable PVs to be applied without regard to weather conditions.
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spelling doaj.art-4ec1f0e6ff8f4f9aaf34a27b348b35632022-12-22T02:41:26ZengElsevieriScience2589-00422022-07-01257104649Kirigami-inspired automatically self-inclining bifacial solar cell arrays to enhance energy yield under both sunny and cloudy conditionsMin Ju Yun0Yeon Hyang Sim1Dong Yoon Lee2Seung I. Cha3Energy Conversion Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute, Changwon-si, Gyeongsangnam-do 51543, KoreaEnergy Conversion Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute, Changwon-si, Gyeongsangnam-do 51543, Korea; Department of Electro-functionality Materials Engineering, University of Science and Technology, Changwon-si, Gyeongsangnam-do 51543, KoreaEnergy Conversion Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute, Changwon-si, Gyeongsangnam-do 51543, KoreaEnergy Conversion Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute, Changwon-si, Gyeongsangnam-do 51543, Korea; Department of Electro-functionality Materials Engineering, University of Science and Technology, Changwon-si, Gyeongsangnam-do 51543, Korea; Corresponding authorSummary: The application of photovoltaics (PVs) is expanding in various locations ranging from industrial facilities to residential housing. The emphasized concept in the PVs field is shifting from “watt-per-cost” to “energy-yield-per-watt.” To attain a high energy yield, fixed modules are not well suited to capture both direct and omnidirectional light. To achieve a high energy yield under both light conditions, we propose a self-inclining bifacial solar cell array fabricated by integrating a photothermal actuator, which senses incident light by itself, and actuating solar cells that incline at the appropriate angle to maximize captured light. In the vertical illumination state, the specific power of the self-inclining bifacial two-cell array is 11% higher than a fixed-angle aligned array. In an outside environment with a large proportion of diffused light, the self-inclining bifacial two-cell array also shows higher performance. We expect this work to enable PVs to be applied without regard to weather conditions.http://www.sciencedirect.com/science/article/pii/S258900422200921XApplied physicsSolar terrestrial physicsEngineering
spellingShingle Min Ju Yun
Yeon Hyang Sim
Dong Yoon Lee
Seung I. Cha
Kirigami-inspired automatically self-inclining bifacial solar cell arrays to enhance energy yield under both sunny and cloudy conditions
iScience
Applied physics
Solar terrestrial physics
Engineering
title Kirigami-inspired automatically self-inclining bifacial solar cell arrays to enhance energy yield under both sunny and cloudy conditions
title_full Kirigami-inspired automatically self-inclining bifacial solar cell arrays to enhance energy yield under both sunny and cloudy conditions
title_fullStr Kirigami-inspired automatically self-inclining bifacial solar cell arrays to enhance energy yield under both sunny and cloudy conditions
title_full_unstemmed Kirigami-inspired automatically self-inclining bifacial solar cell arrays to enhance energy yield under both sunny and cloudy conditions
title_short Kirigami-inspired automatically self-inclining bifacial solar cell arrays to enhance energy yield under both sunny and cloudy conditions
title_sort kirigami inspired automatically self inclining bifacial solar cell arrays to enhance energy yield under both sunny and cloudy conditions
topic Applied physics
Solar terrestrial physics
Engineering
url http://www.sciencedirect.com/science/article/pii/S258900422200921X
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AT dongyoonlee kirigamiinspiredautomaticallyselfincliningbifacialsolarcellarraystoenhanceenergyyieldunderbothsunnyandcloudyconditions
AT seungicha kirigamiinspiredautomaticallyselfincliningbifacialsolarcellarraystoenhanceenergyyieldunderbothsunnyandcloudyconditions