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UNIST, EPFL claim 25.6% efficiency world record for perovskite solar cell

Scientists have set a new efficiency record for a single-junction perovskite solar cell at 25.6%. The cell additionally showed operational stability for 450 hours, and intense electroluminescence with external quantum efficiencies of more than 10%.

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Daily news round-up: Philippines could be set for 1.5 GW more solar and Tesla CEO has been dreaming of electric flight

Plus, details have been revealed of a 2 MW/2.5 MWh grid scale storage demo project in Switzerland and for a peer-to-peer renewable energy certificate marketplace in Southeast Asia.

Graphene doping a step forward for sodium batteries

Scientists at Switzerland’s École Polytechnique Fédérale de Lausanne (EPFL) have developed an anode from graphene doped with sodium, which they say could potentially overcome some of the fundamental issues in increasing storage capacity and the lifetime of sodium-ion batteries.

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Silicon heterojunction solar cell hits 23.5% efficiency with new hole-selective contact

Researchers from Switzerland’s École Polytechnique Fédérale de Lausanne have used molybdenum oxide as the hole-selective contact in an heterojuction silicon cell. The scientists claim the compound can compete with traditional contacts despite a lower level of optimization.

Scientists hit 21.6% perovskite cell efficiency using concentrator PV

An international research group achieved the result on a 9 sq mm, triple-cation based, n-i-p structured perovskite cell using low solar concentration levels. Device instability, however, remains a challenge.

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New configuration gives perovskite cells 18% efficiency

Cesium lead black perovskites could be interesting for solar cell development if their crystals are observed in their less efficient but more stable beta phase. The efficiency shortfall can be solved by healing emerging cracks in the surface of the cell using a choline iodide solution, according to an international team of scientists.

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EPFL scientists put perovskite through its paces

Scientists working at Switzerland’s École Polytechnique Fédérale de Lausanne, in the lab of renowned PV scientist Michael Grätzel, have developed a new method for testing perovskite solar cells that they say combines the advantages of laboratory and outdoor testing and will contribute to the creation of industry standards for characterizing perovskite stability.

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Europe bets on perovskite

Europe’s most important scientific research institutes have joined forces to make perovskite solar applications more than just a dream. The European Perovskite Initiative consortium is planning to draw up a perovskite white paper.

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Scientists concentrate on efficient hydrogen production

Researchers from the Laboratory of Renewable Energy Science and Engineering at Switzerland’s Ecole Polytechnique Federale de Lausanne have developed a device which they say could “provide a pathway for device scalability aimed towards the large scale deployment of photo-electrochemical hydrogen production”.

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BIPV in Europe: More than just a facade

The renowned PV-Lab at Switzerland’s École Polytechnique Fédérale De Lausanne today announced that it has taken on the role of coordinator for the EU funded research project ‘Be-Smart’, which aims at developing a European industry for building integrated PV components.

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