1. Pyroelectricity in poled all-organic polar polynorbornene/polydimethylsiloxane-based stretchable electrets 

   Venkatesan, Thulasinath Raman; Owusu, Francis; Nueesch, Frank A.; et al. (2024)

   Journal of Materials Chemistry C

   Pyroelectricity in a recently developed all-organic composite electret with a polar polynorbornene-based filler and polydimethylsiloxane (PDMS) matrix has been studied with the help of thermal and dielectric techniques. Measurement of the pyroelectric p coefficient using a quasi-static periodic temperature variation at RT shows a non-linear dependence with the applied poling field, which is uncharacteristic of amorphous materials. Dielectric ...

   Journal Article

2. Measurements of time resolution of the RD50-MPW2 DMAPS prototype using TCT and 90Sr 

   Debevc, J.; Franks, M.; Hiti, B.; et al. (2024)

   Journal of Instrumentation

   Results in this paper present an in-depth study of time resolution for active pixels of the RD50-MPW2 prototype CMOS particle detector. Measurement techniques employed include Backside- and Edge-TCT configurations, in addition to electrons from a 90 Sr source. A sample irradiated to 5 <middle dot> 10 14 n eq / cm 2 was used to study the effect of radiation damage. Timing performance was evaluated for the entire pixel matrix and with ...

   Journal Article

3. Unexpected concentration dependence of the mass accommodation coefficient of water on aqueous triethylene glycol droplets 

   Gleichweit, Michael J.; Mohajer, Mercede Azizbaig; Avocat, Dominique P. Borgeaud Dit; et al. (2024)

   Physical Chemistry Chemical Physics

   The mass accommodation coefficient alpha M of water on aqueous triethylene glycol droplets was determined for water mole fractions in the range xmol = 0.1-0.93 and temperatures between 21 and 26 degrees C from modulated Mie scattering measurement on single optically-trapped droplets in combination with a kinetic multilayer model. alpha M reaches minimum values around 0.005 at a critical water concentration of xmol = 0.38, and increases ...

   Journal Article

4. Spectroscopic Investigations of Complex Electronic Interactions by Elemental Doping and Material Compositing of Cobalt Oxide for Enhanced Oxygen Evolution Reaction Activity 

   Huang, Jinzhen; Clark, Adam H.; Hales, Natasha; et al. (2024)

   ADVANCED FUNCTIONAL MATERIALS

   Doping and compositing are two universal design strategies used to engineer the electronic state of a material and mitigate its disadvantages. These two strategies are extensively applied to design efficient electrocatalysts for water splitting. Using cobalt oxide (CoO) as a model catalyst, it is proven that the oxygen evolution reaction (OER) performance can be progressively improved, first by Fe-doping to form Fe-CoO solid solution, and ...

   Journal Article

5. Electrochemical Paper-Based Microfluidics: Harnessing Capillary Flow for Advanced Diagnostics 

   Bezinge, Leonard; Shih, Chih-Jen; Richards, Daniel A.; et al. (2024)

   Small

   Electrochemical paper-based microfluidics has attracted much attention due to the promise of transforming point-of-care diagnostics by facilitating quantitative analysis with low-cost and portable analyzers. Such devices harness capillary flow to transport samples and reagents, enabling bioassays to be executed passively. Despite exciting demonstrations of capillary-driven electrochemical tests, conventional methods for fabricating ...

   Review Article

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