1. Mar 2025 Journal Article Advanced Electronic Materials

    Magneto-Capacitance of PEDOT:PSS Thin Films; Effects of a Two-Phase System and Coulomb Interaction

    Daniel Nikiforov, Nir Tessler, Eitan Ehrenfreund
    Abstract

    The study of the net magneto-capacitance, C(B), in thin films of the conducting polymer Poly(3 4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is presented. In the films there are charged electrically-conducting PEDOT-rich regions surrounded by PSS insulating charged material. The high-conductivity grade PEDOT:PSS thin films are studied at low temperature

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  2. 19 Feb 2025 Journal Article Nano Letters

    Heterostructure Nanoscintillator for Matching Radiation Absorbing Layers with Fast Light-Emitting Layers

    Abstract

    Fast-emitting scintillators are essential for advanced diagnostic techniques, yet many suffer from low radiation attenuation. This trade-off is particularly pronounced in polymer scintillators, which, despite their fast emission, exhibit low density and low atomic numbers, limiting the radiation attenuation factor, resulting in low detection efficiency. Here, we overcome

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  3. 7 Feb 2025 Journal Article Science

    Four-dimensional conserved topological charge vectors in plasmonic quasicrystals

    Shai Tsesses, Pascal Dreher, David Janoschka, Alexander Neuhaus, Kobi Cohen, Tim C Meiler, Tomer Bucher, Shay Sapir, Bettina Frank, Timothy J Davis, Frank-J Meyer zu Heringdorf, Harald Giessen, ... show all 13 authors
    Abstract

    According to Noether’s theorem, symmetries in a physical system are intertwined with conserved quantities. These symmetries often determine the system topology, which is made ever more complex with increased dimensionality. Quasicrystals have neither translational nor global rotational symmetry, yet they intrinsically inhabit a higher-dimensional space in which symmetry

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  4. 1 Feb 2025 Journal Article APL Materials

    Gate control of electron correlations towards Mott field effect transistors (MottFET)

    Lishai Shoham, Itai Silber, Gal Tuvia, Maria Baskin, Soo-Yoon Hwang, Si-Young Choi, Myung-Geun Han, Yimei Zhu, Eilam Yalon, Marcelo J Rozenberg, Yoram Dagan, Felix Trier, ... show all 13 authors
    Abstract

    The modulation of channel conductance in field-effect transistors (FETs) via metal-insulator-semiconductor structures has revolutionized information processing and storage. However, the limitations of silicon-based FETs in electrical switching have driven the search for new materials capable of overcoming these constraints. Electrostatic gating of competing electronic

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  5. 25 Jan 2025 Journal Article Advanced Optical Materials

    Deep-Subwavelength Focusing and Reflectionless Negative Refraction in Visible-Light Hyperbolic Metasurface

    Abstract

    Hyperbolic metasurfaces (HMSs) are artificially-engineered interfaces, exhibiting high anisotropy manifested as hyperbolic dispersion. Their ability to support extremely large momenta with negative diffraction and refraction places them as promising platforms for on-chip super-resolution and enhanced light-matter interaction. While the hyperbolic nature of these structures

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  6. 17 Jan 2025 Preprint Social Science Research Network

    Compressive Strength of Twinned Ni-Co Nanoparticles

    Anuj Bisht, Raj Kiran Kojub, Yuanshen Qi, Eugen Rabkin, Yuri Mishin
    Abstract

    AbstractNanoparticles obtained by solid-state dewetting are known to exhibit an extraordinarily high mechanical strength under uniaxial compression. While most of such particles are single-crystalline, some may contain a coherent twin boundary (CTB) parallel to the substrate. The role of the CTB in the mechanical properties of such particles remained unknown. This work

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  7. 10 Jan 2025 Journal Article Nature Electronics

    Improved organic electrochemical transistor stability using solvent degassing and chemical doping

    Vianna Le, Kyle N Baustert, Megan R Brown, Joel H Bombile, Lucas Q Flagg, Karl F Thorley, Christina J Kousseff, Olga Solomeshch, Iain McCulloch, Nir Tessler, Chad Risko, Kenneth R Graham, ... show all 13 authors
    Abstract

    Organic mixed ionic–electronic conductors (OMIECs), which can be used to build organic electrochemical transistors (OECTs), are of potential use in flexible, large-area and bioelectronic systems. Although hole-transporting p-type OMIECs are susceptible to oxidation, and oxygen leads to OECT instability, it is unclear whether oxygen also behaves as an uncontrolled p-dopant

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  8. 28 Dec 2024 Preprint Social Science Research Network

    Morphology and Dynamics Scaling of Water Sheet Jets Generated by Microfluidic Convergent Nozzles

    Abstract

    The morphological dynamics of water sheet jets generated by microfluidic convergent nozzles represent a critical area of research with significant implications for advancing controlled spray formation. This study employs anodically bonded Silicon wafer chips with etched converging nozzle geometries to investigate the effects of geometric parameters under varying

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  9. 17 Dec 2024 Journal Article Advanced Functional Materials

    Transient Current Responses of Organic Electrochemical Transistors: Evaluating Ion Diffusion, Chemical Capacitance, and Series Elements

    Juan Bisquert, Nir Tessler
    Abstract

    For the successful implementation of organic electrochemical transistors in neuromorphic computing, bioelectronics, and real-time sensing applications it is essential to understand the factors that influence device switching times. This work describes a physical-electrochemical model of the transient response to a step of the gate voltage. The model incorporates 1) ion

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  10. 24 Nov 2024 Preprint arXiv

    Charge gain via solid-state gating of an oxide Mott system

    Lishai Shoham, Itai Silber, Gal Tuvia, Maria Baskin, Soo-Yoon Hwang, Si-Young Choi, Myung-Geun Han, Yimei Zhu, Eilam Yalon, Marcelo J Rozenberg, Yoram Dagan, Felix Trier, ... show all 13 authors
    Abstract

    The modulation of channel conductance in field-effect transistors (FETs) via metal-oxide-semiconductor (MOS) structures has revolutionized information processing and storage. However, the limitations of silicon-based FETs in electrical switching have driven the search for new materials capable of overcoming these constraints. Electrostatic gating of competing electronic

    show more