Light Management in Bifacial Photovoltaics with Spectrally Selective Mirrors

Bryan Cote; Ian Slauch; Michael Deceglie; Timothy Silverman; Vivian Ferry

doi:10.1021/acsaem.1c01236

Light Management in Bifacial Photovoltaics with Spectrally Selective Mirrors

Bryan Cote
, Ian Slauch
, Michael Deceglie
, Timothy Silverman
, Vivian Ferry

Materials Science

University of Minnesota

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

12 Scopus Citations

Abstract

Spectrally selective mirrors that simultaneously provide above-bandgap antireflection and sub-bandgap light rejection are tested for their ability to provide passive cooling to partially sub-bandgap transparent bifacial photovoltaics. The optical and thermal benefits of both idealized and real, low-complexity spectrally selective mirrors on single-axis tracking, bifacial PERC arrays under realistic conditions are tested via rigorous finite element simulations. Four- and six-layer mirror designs increased carrier generation beyond what traditional antireflection coatings can provide without the associated cell heating. Idealized mirrors were found to provide up to 2.4 °C of cooling when included on both air/glass interfaces of the bifacial module.

Original language	American English
Pages (from-to)	5397-5402
Number of pages	6
Journal	ACS Applied Energy Materials
Volume	4
Issue number	6
DOIs	https://doi.org/10.1021/acsaem.1c01236 https://doi.org/10.1021/acsaem.1c01236
State	Published - 28 Jun 2021

Bibliographical note

Publisher Copyright:
©

NLR Publication Number

NREL/JA-5K00-79867

Keywords

antireflection coatings
bifacial photovoltaics
cooling
light management
photonic structures
solar energy

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Cite this

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title = "Light Management in Bifacial Photovoltaics with Spectrally Selective Mirrors",

abstract = "Spectrally selective mirrors that simultaneously provide above-bandgap antireflection and sub-bandgap light rejection are tested for their ability to provide passive cooling to partially sub-bandgap transparent bifacial photovoltaics. The optical and thermal benefits of both idealized and real, low-complexity spectrally selective mirrors on single-axis tracking, bifacial PERC arrays under realistic conditions are tested via rigorous finite element simulations. Four- and six-layer mirror designs increased carrier generation beyond what traditional antireflection coatings can provide without the associated cell heating. Idealized mirrors were found to provide up to 2.4 °C of cooling when included on both air/glass interfaces of the bifacial module.",

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AU - Slauch, Ian

AU - Deceglie, Michael

AU - Silverman, Timothy

AU - Ferry, Vivian

N1 - Publisher Copyright: ©

PY - 2021/6/28

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AB - Spectrally selective mirrors that simultaneously provide above-bandgap antireflection and sub-bandgap light rejection are tested for their ability to provide passive cooling to partially sub-bandgap transparent bifacial photovoltaics. The optical and thermal benefits of both idealized and real, low-complexity spectrally selective mirrors on single-axis tracking, bifacial PERC arrays under realistic conditions are tested via rigorous finite element simulations. Four- and six-layer mirror designs increased carrier generation beyond what traditional antireflection coatings can provide without the associated cell heating. Idealized mirrors were found to provide up to 2.4 °C of cooling when included on both air/glass interfaces of the bifacial module.

KW - antireflection coatings

KW - bifacial photovoltaics

KW - cooling

KW - light management

KW - photonic structures

KW - solar energy

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ER -

Light Management in Bifacial Photovoltaics with Spectrally Selective Mirrors

Abstract

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Keywords

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