High-performance broadband optical coatings on InGaN/GaN solar cells for multijunction device integration

Young, N. G.; Perl, E. E.; Farrell, R. M.; Iza, M.; Keller, S.; Bowers, J. E.; Nakamura, S.; DenBaars, S. P.; Speck, J. S.

doi:10.1063/1.4873117

Title: High-performance broadband optical coatings on InGaN/GaN solar cells for multijunction device integration

Journal Article · Tue Apr 22 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4873117· OSTI ID:1383641

Young, N. G. ^[1]; Perl, E. E. ^[1]; Farrell, R. M. ^[1]; Iza, M. ^[1]; Keller, S. ^[1]; Bowers, J. E. ^[1]; Nakamura, S. ^[1]; DenBaars, S. P. ^[1]; Speck, J. S. ^[1]

Univ. of California, Santa Barbara, CA (United States)

We demonstrate InGaN/GaN multiple quantum well solar cells grown by metalorganic chemical vapor deposition on a bulk (0001) substrate with high-performance broadband optical coatings to improve light absorption. A front-side anti-reflective coating and a back-side dichroic mirror were designed to minimize front surface reflections across a broad spectral range and maximize rear surface reflections only in the spectral range absorbed by the InGaN, making the cells suitable for multijunction solar cell integration. Application of optical coatings increased the peak external quantum efficiency by 56% (relative) and conversion efficiency by 37.5% (relative) under 1 sun AM0 equivalent illumination.

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Research Organization:: Energy Frontier Research Centers (EFRC) (United States). Center for Energy Efficient Materials (CEEM)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)

Grant/Contract Number:: SC0001009; DGE-1144085

OSTI ID:: 1383641

Journal Information:: Applied Physics Letters, Vol. 104, Issue 16; Related Information: CEEM partners with the University of California, Santa Barbara (lead); Purdue University; Los Alamos National Laboratory; National Renewable Energy Laboratory; ISSN 0003-6951

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 46 works

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A III-nitride nanowire solar cell fabricated using a hybrid coaxial and uniaxial InGaN/GaN multi quantum well nanostructure Park, Ji-Hyeon; Nandi, R.; Sim, Jae-Kwan RSC Advances, Vol. 8, Issue 37 https://doi.org/10.1039/c8ra03127d	journal	January 2018
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14 SOLAR ENERGY
42 ENGINEERING
solar (photovoltaic)
solid state lighting
phonons
thermoelectric
bio-inspired
energy storage (including batteries and capacitors)
electrodes - solar
defects
charge transport
materials and chemistry by design
optics
synthesis (novel materials)
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Title: High-performance broadband optical coatings on InGaN/GaN solar cells for multijunction device integration

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