Ultrabroadband and Wide-Angle Hybrid Antireflection Coatings With Nanostructures

Emmett E. Perl; Chieh Ting Lin; William E. McMahon; Daniel J. Friedman; John E. Bowers

doi:10.1109/JPHOTOV.2014.2304359

Ultrabroadband and Wide-Angle Hybrid Antireflection Coatings With Nanostructures

Emmett E. Perl, Chieh Ting Lin, William E. McMahon, Daniel J. Friedman, John E. Bowers

Chemistry and Nanoscience

University of California at Santa Barbara

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

22 Scopus Citations

Abstract

Ultrabroadband and wide-angle antireflection coatings (ARCs) are essential to realizing efficiency gains for state-of-the-art multijunction photovoltaic devices. In this study, we examine a novel design that integrates a nanostructured antireflection layer with a multilayer ARC. Using optical models, we find that this hybrid approach can reduce reflected AM1.5D power by 10-50 W/m² over a wide angular range compared to conventional thin-film ARCs. A detailed balance model correlates this to an improvement in absolute cell efficiency of 1-2%. Three different ARC designs are fabricated on indium gallium phosphide, and reflectance is measured to show the benefit of this hybrid approach.

Original language	American English
Article number	6746652
Pages (from-to)	962-967
Number of pages	6
Journal	IEEE Journal of Photovoltaics
Volume	4
Issue number	3
DOIs	https://doi.org/10.1109/JPHOTOV.2014.2304359 https://doi.org/10.1109/JPHOTOV.2014.2304359
State	Published - May 2014

NREL Publication Number

NREL/JA-5J00-62254

Keywords

Biomimetics
III-V semiconductor materials
optical films
photovoltaic cells

UN SDGs

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

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title = "Ultrabroadband and Wide-Angle Hybrid Antireflection Coatings With Nanostructures",

abstract = "Ultrabroadband and wide-angle antireflection coatings (ARCs) are essential to realizing efficiency gains for state-of-the-art multijunction photovoltaic devices. In this study, we examine a novel design that integrates a nanostructured antireflection layer with a multilayer ARC. Using optical models, we find that this hybrid approach can reduce reflected AM1.5D power by 10-50 W/m2 over a wide angular range compared to conventional thin-film ARCs. A detailed balance model correlates this to an improvement in absolute cell efficiency of 1-2%. Three different ARC designs are fabricated on indium gallium phosphide, and reflectance is measured to show the benefit of this hybrid approach.",

keywords = "Biomimetics, III-V semiconductor materials, optical films, photovoltaic cells",

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language = "American English",

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AU - Perl, Emmett E.

AU - Lin, Chieh Ting

AU - McMahon, William E.

AU - Friedman, Daniel J.

AU - Bowers, John E.

PY - 2014/5

Y1 - 2014/5

N2 - Ultrabroadband and wide-angle antireflection coatings (ARCs) are essential to realizing efficiency gains for state-of-the-art multijunction photovoltaic devices. In this study, we examine a novel design that integrates a nanostructured antireflection layer with a multilayer ARC. Using optical models, we find that this hybrid approach can reduce reflected AM1.5D power by 10-50 W/m2 over a wide angular range compared to conventional thin-film ARCs. A detailed balance model correlates this to an improvement in absolute cell efficiency of 1-2%. Three different ARC designs are fabricated on indium gallium phosphide, and reflectance is measured to show the benefit of this hybrid approach.

AB - Ultrabroadband and wide-angle antireflection coatings (ARCs) are essential to realizing efficiency gains for state-of-the-art multijunction photovoltaic devices. In this study, we examine a novel design that integrates a nanostructured antireflection layer with a multilayer ARC. Using optical models, we find that this hybrid approach can reduce reflected AM1.5D power by 10-50 W/m2 over a wide angular range compared to conventional thin-film ARCs. A detailed balance model correlates this to an improvement in absolute cell efficiency of 1-2%. Three different ARC designs are fabricated on indium gallium phosphide, and reflectance is measured to show the benefit of this hybrid approach.

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KW - photovoltaic cells

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Ultrabroadband and Wide-Angle Hybrid Antireflection Coatings With Nanostructures

Abstract

NREL Publication Number

Keywords

UN SDGs

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