Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 92, Issue 9, Pages 1037-1042Publisher
ELSEVIER
DOI: 10.1016/j.solmat.2008.03.005
Keywords
thin-film silicon solar cells; light trapping; optical losses; quantum efficiency; limitations
Funding
- Bundesministerium fur Umwelt
- Naturschutz und Reaktorsicherheit (German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety) [0329923 A]
- European Commission [019670]
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This Study addresses the potential of different approaches to improve the generated current in silicon thin-film solar cells and modules. Decreasing the carrier concentration in the front contact has proven to increase the quantum efficiency and the cell-current density significantly. Additionally, an optically improved ZnO/Ag back reflector and the optimized light incoupling by anti-reflection layers were studied. In this contribution, we show the potential of the different optical components and discuss combinations thereof in order to obtain a maximized cell-current density in silicon thin-film solar cells. Limitations Of the cell-current density are discussed with respect to theoretical calculations. (C) 2008 Elsevier B.V. All rights reserved.
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