Analysis of short circuit current gains by an anti-reflective textured cover on silicon thin film solar cells
Article first published online: 28 JUL 2012
Copyright © 2012 John Wiley & Sons, Ltd.
Progress in Photovoltaics: Research and Applications
Volume 21, Issue 8, pages 1672–1681, December 2013
How to Cite
Ulbrich, C., Gerber, A., Hermans, K., Lambertz, A. and Rau, U. (2013), Analysis of short circuit current gains by an anti-reflective textured cover on silicon thin film solar cells. Prog. Photovolt: Res. Appl., 21: 1672–1681. doi: 10.1002/pip.2249
- Issue published online: 25 NOV 2013
- Article first published online: 28 JUL 2012
- Manuscript Accepted: 8 MAY 2012
- Manuscript Revised: 11 APR 2012
- Manuscript Received: 26 JUL 2011
- solar cell;
The influence of a retro-reflective texture cover on light in-coupling and light-trapping in thin film silicon solar cells is investigated. The texture cover is applied to the front glass of the cell and leads to a reflectance as low as r ≈ 3% by reducing the reflection at the air/glass interface and indirectly also reducing the reflections from the internal interfaces. For weakly absorbed light in the long wavelength range, the texture also enhances the light-trapping in the solar cell. We demonstrate an increase of the short circuit current density of exemplary investigated thin film silicon tandem solar cells by up to 0.95 mA cm−2 and of the conversion efficiency by up to 0.74% (absolute). For a planar microcrystalline solar cell, the enhancement of light-trapping was determined from the reduced reflection in the long wavelength range to be up to 17%, leading to an increase of the external quantum efficiency of up to 12%. Copyright © 2012 John Wiley & Sons, Ltd.