Green photonics, energy, and related technologies - 2Virtual room: Optonique - 3
|Wednesday, May 27|
GP-2-27-3 / Composite-Cell Current Matching for Higher Efficiency Tandem Solar Cells
* Rafael Kleiman, McMaster University, Canada
We describe a new approach to current matching in double junction solar cells that increases the theoretical maximum efficiencies attainable for many bandgap pairs. In this approach, either or both cell types are repeated one or more times, which provides for improved current matching and 2-terminal operation for a wide variety of bandgap pairs, expanding the opportunity to utilize materials not previously considered. While a multijunction design in which the bandgap of every cell is fully optimized will have higher efficiency, this approach achieves simplicity and potential cost savings by only using two cell types.
GP-2-27-4 / Solar Cells Fabrication for Concentrated Photovoltaics (CPV) applications
* Gwenaelle Hamon, University of Sherbrooke, Canada
Pierre Albert, University of Sherbrooke
Mathieu de Lafontaine, University of Sherbrooke
Xavier Mackré-Delannoy, University of Sherbrooke
Maïté Volatier, University of Sherbrooke
Vincent Aimez, University of Sherbrooke
Abdelatif Jaouad, University of Sherbrooke
Maxime Darnon, University of Sherbrooke
Concentrated Photovoltaics (CPV) is based on triple junction solar cells. This paper shows new types of architectures that are developed at University of Sherbrooke, in order to improve the efficiency, or reduce the costs by simplifying the module assembly. Back-contacted and front-contacted solar cells have been developed and show good properties that are promising for CPV applications.