Printable liquid silicon for local doping of solar cells
- authored by
- Felix Haase, Bianca Lim, Agnes Merkle, Thorsten Dullweber, Rolf Brendel, Christian Günther, Michael H. Holthausen, Christoph Mader, Odo Wunnicke, Robby Peibst
- Abstract
We demonstrate the application of a liquid-processed doped silicon precursor as a doping source for the fabrication of interdigitated back contact solar cells. We integrate phosphorus- as well as boron-doped liquid silicon in our n-type interdigitated back contact cell process based on laser-structuring. The cell with the phosphorus back surface field from liquid silicon has an efficiency of 20.9% and the cell with the boron emitter from liquid silicon has an efficiency of 21.9%. We measure saturation current densities of 34 fA cm−2 on phosphorus-doped layers with a sheet resistance of 108 Ω/sq and 18 fA cm−2 on boron-doped layers with a sheet resistance of 140 Ω/sq using passivated test samples.
- Organisation(s)
-
Institute of Solid State Physics
Institute of Electronic Materials and Devices
- External Organisation(s)
-
Institute for Solar Energy Research (ISFH)
Evonik Operations GmbH
- Type
- Article
- Journal
- Solar Energy Materials and Solar Cells
- Volume
- 179
- Pages
- 129-135
- No. of pages
- 7
- ISSN
- 0927-0248
- Publication date
- 01.06.2018
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials, Renewable Energy, Sustainability and the Environment, Surfaces, Coatings and Films
- Sustainable Development Goals
- SDG 7 - Affordable and Clean Energy
- Electronic version(s)
-
https://doi.org/10.1016/j.solmat.2017.11.003 (Access:
Closed)
