Title
Design of 4-terminal solar modules combining thin-film wide-bandgap top cells and c-Si bottom cells
Author
Zhang, D.
Soppe, W.J.
Schropp, R.E.I.
ECN Part of TNO
Publication year
2015
Abstract
Optical simulations of 4-terminal hybrid tandem modules combining high-efficiency crystalline silicon (c-Si) cells with three different thin-film top cells respectively are presented. We considered three types of thin film PV cells: 1. Enlarged-bandgap oxygenated amorphous silicon (a-SiO:H) cells, 2. Wide-bandgap chalcopyrite (CuGaSe2) cells, and 3. Perovskite (CH3NH3PbI3) cells. A methodology for evaluating the efficiency gain of the 4-terminal hybrid tandem module is proposed and used to show how the efficiency of an interdigitated back contact (IBC) c-Si module with an efficiency of about 19.5% can significantly be increased through this 4-terminal tandem concept. In our model we also included the change in electrical output parameters by the color-filtering effect of the top cells.
Subject
Solar module
4-terminal
Tandem
Simulation
To reference this document use:
http://resolver.tudelft.nl/uuid:76da08de-401d-4128-875b-8a4d7048c294
TNO identifier
849700
Publisher
ELsevier, Amsterdam
Source
Energy Procedia
Document type
article