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Recent Science Highlights

The Crystallization of PEDOT:PSS Polymeric Electrodes Probed In Situ during Printing

Organic electronics have emerged into a highly interesting field of research with a great variety of applications. P. Müller-Buschbaum and co-workers demonstrate the importance of in situ investigations during the printing process of organic electronics. In situ grazing-incidence wide-angle x-ray scattering is used to follow the crystallization process of highly conductive PEDOT:PSS polymer mixtures. These findings are important for tuning transparent polymeric electrodes for organic electronics. Cover Image by Christoph Hohmann, Nanosystems Initiative Munich (NIM). Article link.

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Spectroscopy of Supercapacitor Electrodes In Operando

X-ray spectroscopy of graphene supercapacitor electrodes under operating conditions reveals changes in electronic structure and bonding. The research could lead to an improvement in the capacity and efficiency of electrical energy storage systems needed to meet the burgeoning demands of consumer, industrial, and green technologies.

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ALS X-Rays Shine a New Light on Catalysis

Electrocatalysts are responsible for expediting reactions in many promising renewable energy technologies. Recently a team of Stanford and Berkeley Lab researchers used x-rays at the ALS in a novel way to observe the behavior of electrons during technologically important chemical reactions in metal oxide electrocatalysts. What they learned has upended long-held scientific understanding of how these catalysts work.

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Peptoid Nanosheets Offer a Diversity of Functionalities

Researchers at the ALS have recently observed peptoid nanosheets—two-dimensional biomimetic materials with customizable properties—as they self-assemble at an oil–water interface. This new development opens the door to designing peptoid nanosheets of increasing structural complexity and chemical functionality for a broad range of applications, including improved chemical sensors and separators, and safer, more effective drug delivery vehicles.

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