| Issue |
EPJ Photovolt.
Volume 2, 2011
|
|
|---|---|---|
| Article Number | 20301 | |
| Number of page(s) | 6 | |
| Section | Semiconductor Thin Films | |
| DOI | https://doi.org/10.1051/epjpv/2011001 | |
| Published online | 01 April 2011 | |
https://doi.org/10.1051/epjpv/2011001
Geometrical optimization and electrical performance comparison of thin-film tandem structures based on pm-Si:H and μc-Si:H using computer simulation*
1
Institut d’Électronique du Solide et des Systèmes (InESS) CNRS, 23 rue du Loess, BP 20 CR, 67037 Strasbourg Cedex 2, France
2
Laboratoire de Génie Électrique de Paris, CNRS UMR 8507, SUPELEC, Université Paris-Sud, UPMC Univ Paris VI, 11 rue Joliot-Curie, Plateau de Moulon, 91192 Gif-sur-Yvette Cedex, France
3
Laboratoire de Physique des Interfaces et Couches Minces, École polytechnique, CNRS, 91128 Palaiseau, France
a
e-mail: foudil.dadouche@iness.c-strasbourg.fr
Received: 1 July 2010
Accepted: 10 January 2011
Published online:
1
April
2011
This article investigates the optimal efficiency of a photovoltaic system based on a silicon thin film tandem cell using polymorphous and microcrystalline silicon for the top and bottom elementary cells, respectively. Two ways of connecting the cells are studied and compared: (1) a classical structure in which the two cells are electrically and optically coupled; and (2) a new structure for which the “current-matching” constraint is released by the electrical decoupling of the two cells. For that purpose, we used a computer simulation to perform geometrical optimization of the studied structures as well as their electrical performance evaluation. The simulation results show that the second structure is more interesting in terms of efficiency.
© EDP Sciences 2011
This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial License 3.0, which permits
unrestricted use, distribution, and reproduction in any noncommercial medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.