17.6% Efficient tricrystalline silicon solar cells with spatially uniform texture
- authored by
- Christian Schmiga, Jan Schmidt, Axel Metz, Arthur Endrös, Rudolf Hezel
- Abstract
Up to now solar cells fabricated on tricrystalline Czochralski-grown silicon (tri-Si) have shown relatively low short-circuit current densities of about 31-33 mA/cm2 because the three {110}-oriented grains cannot effectively be textured by commonly used anisotropic etching solutions. In this work, we have optimised a novel chemical texturing step for tri-Si and integrated it successfully into our solar cell process. Metal/insulator/semiconductor-contacted phosphorus.diffused n+p junction silicon solar cells with a silicon.dioxide-passivated rear surface and evaporated aluminium contacts were manufactured, featuring a spatially uniform surface texture over all three grains on both cell sides. Despite the simple processing sequence and cell structure, an independently confirmed record efficiency of 17.6% has been achieved. This excellent efficiency is mainly due to an increased short-circuit current density of 37mA/m2 obtained by substantially reduced reflection and enhanced light trapping.
- External Organisation(s)
-
Institute for Solar Energy Research (ISFH)
Shell
- Type
- Article
- Journal
- Progress in Photovoltaics: Research and Applications
- Volume
- 11
- Pages
- 33-38
- No. of pages
- 6
- ISSN
- 1062-7995
- Publication date
- 16.12.2002
- 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.479 (Access:
Closed)
