Perovskite photovoltaic module with eight percent conversion efficiency

Perovskite photovoltaic module with eight percent conversion efficiency
Perovskite photovoltaic module with eight percent conversion efficiency

Nano-electronics research center imec announced today at Intersolar Europe, a thin-film perovskite photovoltaic (PV) module of a power conversion efficiency of eight percent measured over an aperture area of 16cm2. The remarkable geometrical fill factor of more than 95 percent for this size of module, demonstrates the potential of scaling up this novel thin-film PV technology from cell to module level. The achievement is an important breakthrough in realizing a marketable thin-film solution for applications such as building integrated photovoltaics (BIPV).

Organometal halide perovskites are considered an excellent material for thin-film solar cells as they have shown high conversion efficiencies at cell level. While the power conversion efficiency of this new class of thin film solar cells has increased rapidly in the last few years, further improvements are still needed to make thin-film photovoltaics an attractive technology for industrial production. Larger area processing and narrow interconnections are prerequisites for processing efficient thin-film modules. Imec's results demonstrate the achievement of both factors of perovskite-based solar cells.

"Not only is imec improving the perovskite material, but it is also adjusting the cell and module structure to enhance the conversion efficiency of and modules by more than 20 percent," said Tom Aernouts, R&D manager for thin-film photovoltaics at imec. "The rapid progress that we are making is based on our strong background and track record in traditional organic photovoltaics."

Imec develops a platform for glass-based perovskite modules and collaborates with the Dutch joint thin-film PV research initiative Solliance to develop foil-based processes. Thanks to its high and stand-alone integration in building elements, both glass-based and thin-film perovskite PV technology are widely considered as important technologies for the BIPV market. Imec is working to further increase the of silicon by creating a stack with a perovskite cell on top of a silicon solar cell. The cell will capture the light which is not absorbed by silicon, as such enabling conversion efficiencies of more than 30 percent.


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Imec demonstrates organic photovoltaics modules showing excellent optical properties, high efficiencies

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Citation: Perovskite photovoltaic module with eight percent conversion efficiency (2015, June 10) retrieved 16 October 2019 from https://phys.org/news/2015-06-perovskite-photovoltaic-module-percent-conversion.html
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Jun 10, 2015
Too bad all the subsidies in the solar PV industry are being spent on cheaper Chinese silicon panels in a bid to build as fast as possible to catch the subsidies before anyone gets wise.

These new technologies don't have a road to market because the investors won't risk funding new types of production when there's government guaranteed and paid profit in the old one.

It's easier return of investment because the prices are all fixed and there's no competion - the solar PV producers all get the same subsidy regardless of supply and demand - so that's where all the money goes. They invest only in what's already on the market.

In this situation, the responsibility to take the risk is left with the governments, but then the republicans cry blue murder (Solyndra!) when the investments fail, and use that as a political blunt instrument.

Jun 28, 2015
It has lead, so they try to replce it with tin but tin perovskite is not as effective yet.

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