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Crown ethers improve perovskite solar cell stability

— EPFL scientists have used an unprecedented method with multimodal host-guest complexation to greatly improve the stability of perovskite solar cells while also reducing the release of lead into the environment.

© 2021 EPFL

M. Graetzel appointed as IAS Distinguished Fellow

— The Institute of Advanced Studies (IAS) at the Nanyang Technological University (NTU), Singapore, appointed Prof. Michael Graetzel as a Distinguished Fellow. The appointment is effective as of June, 2021, for seven years minimum.

Professor Michael Grätzel. Credit: ERC

Enabling the green transition with high-performing solar cells

— In the global effort to combat climate change, solar power can help cut emissions and provide an alternative to fossil fuels. ERC grantee Michael Grätzel is pioneering a new generation of photovoltaic solar technologies that are highly reliable and cost effective. The record-breaking performance of his solar cells has real-world applications within sustainable electronics.

Highly luminescent and stable alpha-FAPbI3 perovskite via HCOO- anion engineering. Credit: Jin Young Kim (UNIST)

Perovskite solar cells exceed 25% power-conversion efficiency

— Physical chemists and chemical engineers led by EPFL have used a chemical tweak to push the power-conversion efficiency and operational stability of perovskite solar cells to 25.6% and at least 450 hours respectively.

Marko Stojanovic in the Laboratory of Photonics and Interfaces holding a solution of MS5. © Jean-David Décoppet and Alejandra Hauser.

A new dye shakes up solar cells

— EPFL scientists have developed a new dye for solar cells that enables high power-conversion efficiency while being simple and cheap to make. The dye also works exceptionally well under low-light conditions, which is key for self- and low-powered devices.

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