Back-contacted BaSi2 solar cells

An optical study

Journal article (2017)

Authors

R. Vismara Photovoltaic Materials and Devices - EEMCS
O. Isabella Photovoltaic Materials and Devices - EEMCS
M. Zeman Electrical Sustainable Energy
Research Group
Photovoltaic Materials and Devices (EEMCS) (TU Delft)
Copyright: © 2017 R. Vismara, O. Isabella, M. Zeman
DOI: https://doi.org/10.1364/OE.25.00A402
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Published Date

2017

Language

English

Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Research Group

Photovoltaic Materials and Devices

Abstract

We present the optical investigation of a novel back-contacted architecture for solar cells based on a thin barium (di)silicide (BaSi2) absorber. First, through the analysis of absorption limits of different semiconducting materials, we show the potential of BaSi2 for photovoltaic applications. Then, the proposed back contacted BaSi2 solar cell design is investigated and optimized. An implied photocurrent density of 40.3 mA/cm2 in a 1-μm thick absorber was achieved, paving the way for novel BaSi2-based thin-film solar cells.