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M. M. de Jong, P. J. Sonneveld, J. Baggerman, C. J. M. van Rijn, J. K. Rath and R. E. I. Schropp Utilization of geometric light trapping in thin film silicon solar cells: simulations and experiments Progress in Photovoltaics: Research and Applications 22

Version of Record online: 30 OCT 2012 | DOI: 10.1002/pip.2299

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A new light absorption enhancement method for p-i-n thin film silicon solar cells using micro-pyramidal structures, much larger than the wavelength of light, shows a significant increase (30%) in short-circuit current over reference cells deposited on flat glass substrates. Calculations show a maximum possible current enhancement of 45%, in spite of 30% locally flat area on the substrate. The cell on micro-structured PC shows an efficiency of 6.4%, which is only around 1% absolute lower than the cell on Asahi U-type glass substrate

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