SHORT COMMUNICATION: ACCELERATED PUBLICATION: Multicrystalline silicon solar cells exceeding 20% efficiency
Article first published online: 1 OCT 2004
Copyright © 2004 John Wiley & Sons, Ltd.
Progress in Photovoltaics: Research and Applications
Volume 12, Issue 7, pages 553–558, November 2004
How to Cite
Schultz, O., Glunz, S. W. and Willeke, G. P. (2004), SHORT COMMUNICATION: ACCELERATED PUBLICATION: Multicrystalline silicon solar cells exceeding 20% efficiency. Prog. Photovolt: Res. Appl., 12: 553–558. doi: 10.1002/pip.583
- Issue published online: 1 OCT 2004
- Article first published online: 1 OCT 2004
- Manuscript Revised: 4 AUG 2004
- Manuscript Received: 28 JUL 2004
- multicrystalline silicon;
- crystalline silicon solar cells;
- silicon oxide
This paper presents the first conversion efficiency above 20% for a multicrystalline silicon solar cell. The application of wet oxidation for rear surface passivation significantly reduces the process temperature and therefore prevents the degradation of minority-carrier lifetime. The excellent optical properties of the dielectrically passivated rear surface in combination with a plasma textured front surface result in a superior light trapping and allow the use of substrates below 100 μm thickness. A simplified process scheme with laser-fired rear contacts leads to conversion efficiencies of 20·3% for multicrystalline and 21·2% for monocrystalline silicon solar cells on small device areas (1 cm2). Copyright © 2004 John Wiley & Sons, Ltd.