Hybrid Dielectric-Metallic Back Reflector for Amorphous Silicon Solar Cells

James G. Mutitu, Shouyuan Shi, Allen Barnett and Dennis W. Prather
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James G. Mutitu: Department of Electrical and Computer Engineering, University of Delaware, 151 Evans Hall Newark, DE 19716, USA
Shouyuan Shi: Department of Electrical and Computer Engineering, University of Delaware, 151 Evans Hall Newark, DE 19716, USA
Allen Barnett: Department of Electrical and Computer Engineering, University of Delaware, 151 Evans Hall Newark, DE 19716, USA
Dennis W. Prather: Department of Electrical and Computer Engineering, University of Delaware, 151 Evans Hall Newark, DE 19716, USA

Energies, 2010, vol. 3, issue 12, 1-20

Abstract: In this paper, we present the design and fabrication of hybrid dielectric-metallic back surface reflectors, for applications in thin film amorphous silicon solar cells. Standard multilayer distributed Bragg reflectors, require a large number of layers in order to achieve high reflectance characteristics. As it turns out, the addition of a metallic layer, to the base of such a multilayer mirror, enables a reduction in the number of dielectric layers needed to attain high reflectance performance. This paper explores the design, experimental realization and opportunities, in thin film amorphous silicon solar cells, afforded by such hybrid dielectric-metallic back surface reflectors.

Keywords: solar cells; light trapping; amorphous silicon; back reflector (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2010
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