A long way to go for iron pyrite solar cells

A paper from Sweden has attempted to uncover why the conversion efficiency of solar cells based on cheap, abundant iron pyrites continues to languish below 3% despite the apparent optoelectronic promise of the material.

A closer look at graphene electrodes

Scientists in the United States have found several shortcomings in the approaches commonly used by scientists to model the structure of electrodes. The group outlines a new approach which it says could lead to the discovery of new materials and combinations that can lead to batteries performing better for longer.

Carbon accounting for beginners

A new report from Rocky Mountain Institute in the U.S. explores the need for companies to disclose information about greenhouse gas emissions throughout their supply chains, and the most effective ways to do this whilst ensuring consistency and comparability of collected data across multiple industries.

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No science news today

In a show of support for scientists around the world who are downing tools today in support of the Black Lives Matter movement, pv magazine will be pausing our usual coverage of developments from the world of science and academia.

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A spray coating process for perovskite PV

Scientists at Thailand’s Mahidol University have developed a new spray coating process which they say could be used in the production of stable multi-layered perovskite solar cells in a variety of colors and transparencies.

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New insights into lithium-ion battery structure

Scientists at Moscow’s Skoltech Center for Energy Science and Technology have developed a method of visualizing the formation of layers on battery electrodes during their initial operation. The observations reveal various mechanisms that could be optimized to improve battery performance and operational lifetime.

teamtechnik receives stringer order for 400 MW German fab

German equipment manufacturer teamtechnik announced it has received an order from a European module manufacturer for several stringers to process nine busbar half cells. Already a major trend among module makers in China, 9BB technology now looks to be headed further afield.

Paving the way for lead-free perovskites

Scientists in Germany and China have developed an additive which greatly improved the performance of a tin-based perovskite solar cell. Cells fabricated with the additive reached 9.1% efficiency, and the researchers say their work opens up many new possibilities to improve the performance of lead-free perovskites.

A closer look at battery degradation, assisted by machine learning

Scientists at the SLAC National Accelerator Laboratory in the U.S. have developed a machine learning algorithm that can identify and track individual particles within a lithium-ion battery cell. Their findings shed more light on how the batteries lose performance over time, and could challenge previous assumptions of scientists working to develop batteries with longer lifetimes.

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Investigating backsheets and ultraviolet stability

Five testing laboratories led by Germany’s Fraunhofer ISE have begun a ‘round robin’ project to test the effects of ultraviolet light on polymer backsheet materials. Initial results indicate a route to accurate accelerated testing of backsheet UV stability over module lifetimes of 20 years-plus.

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