The Potential of Tandem Photovoltaic Solar Cells Tandem Photovoltaic Solar Cells for Indoor Applications pp Ben Minnaert and Peter Veelaert Faculty of Engineering and Architecture Ghent University, Belgium Ben.Minnaert@UGent.be
Low power indoor devices Low power indoor devices • Today: batteries – Limited lifetime – Cost of replacing battery > cost device – Battery waste not environmentally friendly Battery waste not environmentally friendly • Tomorrow: energy from renewable resources in the environment (heat, motion, light) ( , , g ) ⇒ “infinite” lifetime
Tandem solar cell Tandem solar cell Stacked Monolithic
Indoor spectra (500 lux) Indoor spectra (500 lux)
Optimal bandgaps Optimal bandgaps
Efficiency gain tandem solar cells Efficiency gain tandem solar cells
The Potential of Tandem Photovoltaic Solar Cells Tandem Photovoltaic Solar Cells for Indoor Applications pp Ben Minnaert and Peter Veelaert Faculty of Engineering and Architecture Ghent University, Belgium Ben.Minnaert@UGent.be
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