From high-efficiency n-type solar cells to modules exceeding 20% efficiency with aluminum-based cell interconnection
- authored by
- Agnes Merkle, Henning Schulte-Huxel, Susanne Blankemeyer, Ilka Feilhaber, Robert Bock, Verena Steckenreiter, Sarah Kajari-Schroeder, Nils Peter Harder, Rolf Brendel
- Abstract
We present the integrated development of back-contacted solar cells and an adequate module interconnection for a high-efficiency photovoltaic module. We report on a large area (125 × 125) mm2 back-junction back-contact n-type solar cell metallized with aluminum having a total area conversion efficiency of 20.7%. To transfer the high conversion efficiency to the module, we use the laser welding process named aluminum-based mechanical and electrical laser interconnection for module integration of these back-contacted solar cells. We further analyze the impact of the busbars of our back-junction back-contact cells on the cell performance and report on optimization of the cell/module interface. The new cells have an adapted rear-side geometry by omitting the emitter busbar. A proof-of-concept module consisting of these cells is presented.
- Organisation(s)
-
Institute of Solid State Physics
- External Organisation(s)
-
Institute for Solar Energy Research (ISFH)
Bosch Solar Energy AG
- Type
- Article
- Journal
- Progress in Photovoltaics: Research and Applications
- Volume
- 21
- Pages
- 1354-1362
- No. of pages
- 9
- ISSN
- 1062-7995
- Publication date
- 21.08.2013
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials, Renewable Energy, Sustainability and the Environment, Condensed Matter Physics, Electrical and Electronic Engineering
- Sustainable Development Goals
- SDG 7 - Affordable and Clean Energy
- Electronic version(s)
-
https://doi.org/10.1002/pip.2297 (Access:
Closed)
