Design of 4-terminal solar modules combining thin-film wide-bandgap top cells and c-Si bottom cells

D. Zhang, W. Soppe, R.E.I. Schropp

Research output: Contribution to journalArticleAcademicpeer-review

14 Citations (Scopus)
188 Downloads (Pure)

Abstract

Optical simulations of 4-terminal hybrid tandem modulescombining 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 aninterdigitated 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.
Original languageEnglish
Pages (from-to)500-507
JournalEnergy Procedia
Volume77
DOIs
Publication statusPublished - 2015

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