The combination of different types of solar cell technologies allows to more efficiently convert a wider range of the light spectrum into electricity. By stacking a high efficient semi-transparent perovskite top cell on a silicon bottom cell, total energy conversion efficiencies up to 30% are targeted.
Imec focuses on four terminal stacked cells and modules because these multi-junction stacks do not suffer from current matching and their total energy conversion yield is less sensitive to spectral variations of the light.
With small size perovskite cells on 2cm by 2 cm interdigitated back contact cell (IBC), a maximum total efficiency up to 22% could be demonstrated. For 16cm² twenty-five cell perovskite module on top of a 16cm² four cell IBC module, a total efficiency of more than 17% was realized.
Other imec developments combine different type of perovskites cells on top of each other, or perovskites on top of CIGS.
The more than 30 year experience of imec in silicon solar cell technology and the in depth know-how in perovskite solar cells, puts imec in the leading position for stacked solar development. We can provide perovskite technology solutions to add to a company’s silicon solar cell, or we can provide silicon solar cell technology on which a company’s perovskite can be processed, or we can provide both.
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Some examples of what we have done
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Solar to chemicals integrated system modelling
Integration of physics-based model for chemical yield under varying conditions for a highly integrated PV-electrochemical system
Thin perfect absorbers on top of CMOS
Classical imager materials have very long absorption lengths, which hamper pixel downscaling. Recent progress shows that new metamaterials can be constructed with very short absorption lengths for future high-resolution imager applications.
ADDITIVE MANUFACTURING FOR NOVEL HEAT DISSIPATION TECHNIQUES IN POWER CONVERTERS (CSC-related type 1)
3D Printing of novel and effective cooling systems for power converters
Neural network based approach to design complex PV systems
to develop and implement data-driven approaches for modelling and optimizing the long-term outdoor performance of complex PV systemsMeer jobs bekijken