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Appl. Sci. 2017, 7(6), 589; doi:10.3390/app7060589

Thermal Management of Concentrated Multi-Junction Solar Cells with Graphene-Enhanced Thermal Interface Materials

1
Nano-Device Laboratory (NDL), Department of Electrical and Computer Engineering, University of California, Riverside, CA 92521, USA
2
Phonon Optimized Engineered Materials (POEM) Center, Bourns College of Engineering, University of California, Riverside, CA 92521, USA
3
Materials Science and Engineering Program, University of California, Riverside, CA 92521, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Philippe Lambin
Received: 20 May 2017 / Revised: 31 May 2017 / Accepted: 3 June 2017 / Published: 7 June 2017
(This article belongs to the Section Nanotechnology and Applied Nanosciences)
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Abstract

We report results of experimental investigation of temperature rise in concentrated multi-junction photovoltaic solar cells with graphene-enhanced thermal interface materials. Graphene and few-layer graphene fillers, produced by a scalable environmentally-friendly liquid-phase exfoliation technique, were incorporated into conventional thermal interface materials. Graphene-enhanced thermal interface materials have been applied between a solar cell and heat sink to improve heat dissipation. The performance of the multi-junction solar cells has been tested using an industry-standard solar simulator under a light concentration of up to 2000 suns. It was found that the application of graphene-enhanced thermal interface materials allows one to reduce the solar cell temperature and increase the open-circuit voltage. We demonstrated that the use of graphene helps in recovering a significant amount of the power loss due to solar cell overheating. The obtained results are important for the development of new technologies for thermal management of concentrated photovoltaic solar cells. View Full-Text
Keywords: graphene; thermal interface materials; solar cells; thermal management graphene; thermal interface materials; solar cells; thermal management
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Saadah, M.; Hernandez, E.; Balandin, A.A. Thermal Management of Concentrated Multi-Junction Solar Cells with Graphene-Enhanced Thermal Interface Materials. Appl. Sci. 2017, 7, 589.

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