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36 Current news about the topic perovskite solar cells

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The perfect recipe for efficient perovskite solar cells

23-Feb-2021

A long-cherished dream of materials researchers is a solar cell that converts sunlight into electrical energy as efficiently as silicon, but that can be easily and inexpensively fabricated from abundant materials. Scientists at the Helmholtz-Zentrum Berlin have now come a step closer to achieving ...

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Purely Organic Hole Transporter

Dopant-free, humidity-stable organic layers give perovskite solar cells 21% efficiency

19-Jan-2021

Durable, high-performing perovskite solar cells also require durable, high-performing charge-transporting layers. Scientists have developed the first organic hole transporter that does not need a dopant to attain high charge mobility and stability. According to the study published in the journal ...

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Perovskite/silicon tandem solar cells on the threshold of 30% efficiency

Consistent performance over 300 hours

14-Dec-2020

An HZB team has published a report in the journal Science on the development of its current world record of 29.15% efficiency for a tandem solar cell made of perovskite and silicon. The tandem cell provided stable performance for 300 hours – even without encapsulation. To accomplish this, the ...

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Perovskite Solar Cells: paving the way for rational ink design for industrial-scale manufacturing

01-Dec-2020

For the production of high-quality metal-halide perovskite thin-films for large area photovoltaic modules often optimized inks are used which contain a mixture of solvents. An HZB team at BESSY II has now analysed the crystallisation processes within such mixtures. A model has also been developed ...

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How charges move in solar cells

An understanding of microscopic processes in perovskite solar cells can lead to increased efficiency

22-Sep-2020

When the sun rises, a complex dance begins in perovskite solar cells - a type of solar cell that can supplement or replace existing silicon solar cells in the future: Electrons are supplied with energy by light and move. Where electrons move, they leave holes. At the same time, ions move around ...

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Inkjet printing fabrication paves way for practical perovskite solar cell production

New approach could offer scalable production of high-efficiency solar cells

15-Jul-2020

Researchers from Karlsruhe Institute of Technology have developed a new fabrication technique based on inkjet printing that could enable fast, efficient and scalable production of perovskite solar cells. Perovskite semiconductors are a very promising material for solar cells because they absorb ...

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Microscopic structures could further improve perovskite solar cells

Electrons in the fast lane

06-Jul-2020

Solar cells based on perovskite compounds could soon make electricity generation from sunlight even more efficient and cheaper. The laboratory efficiency of these perovskite solar cells already exceeds that of the well-known silicon solar cells. An international team led by Stefan Weber from the ...

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On the road to non-toxic and stable perovskite solar cells

Tin instead of lead

13-May-2020

The promising halide perovskite materials for solar energy conversion show high efficiencies, but this comes at a cost: The best perovskite materials incorporate toxic lead which poses a hazard to the environment. To replace lead by less toxic elements is not easy since lead-free perovskites show ...

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Perovskite solution aging: Scientists find solution

19-Mar-2020

Perovskite solar cells have developed quickly in the past decade. But like silicon solar cells, the efficiency of perovskite solar cells is highly dependent upon the quality of the perovskite layer, which is related to its crystallinity. Unfortunately, the aging process of the perovskite solution ...

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Inorganic perovskite absorbers for use in thin-film solar cells

29-Apr-2019

A team at the Helmholtz-Zentrum Berlin has succeeded in producing inorganic perovskite thin films at moderate temperatures using co-evaporation – making post-tempering at high temperatures unnecessary. The process makes it much easier to produce thin-film solar cells from this material. In ...

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