1. 10 Mar 2023 Journal Article Materials for Sustainable Development Conference (MATSUS)

    Enhancing the Performance of State-of-the-Art Solar Cells Using Universal Hole Extraction Layer

    Hela Fadool, Young-Jun Yu, Dong Hoon Choi, Jung-Il Jin, Nir Tessler
    Abstract

    Organic solar cells (OSCs) have attracted much interest in recent years for their unique properties such as flexibility, light weight and the low cost and ease of their fabrication processes. While not destined to replace silicon- based technology, organic based solar cells provide a promising technology for wearables, windows, as well as light weight constructions that

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  2. 8 Feb 2023 Preprint arXiv

    Bandwidth Control and Symmetry Breaking in a Mott-Hubbard Correlated Metal

    Lishai Shoham, Maria Baskin, Tom Tiwald, Guy Ankonina, Myung-Geun Han, Anna Zakharova, Shaked Caspi, Shay Joseph, Yimei Zhu, Isao H Inoue, Cinthia Piamonteze, Marcelo J Rozenberg, ... show all 13 authors
    Abstract

    In Mott materials strong electron correlation yields a spectrum of complex electronic structures. Recent synthesis advancements open realistic opportunities for harnessing Mott physics to design transformative devices. However, a major bottleneck in realizing such devices remains the lack of control over the electron correlation strength. This stems from the complexity

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  3. 2 Feb 2023 Journal Article Advanced Materials

    Zn-doped P-type InAs Nanocrystal Quantum Dots

    Lior Asor, Jing Liu, Shuting Xiang, Nir Tessler, Anatoly I Frenkel, Uri Banin
    Abstract

    Doped heavy metal-free III – V semiconductor nanocrystal quantum dots are of great interest both from the fundamental aspects of doping in highly confined structures, and from the applicative side of utilizing such building blocks in the fabrication of p-n homojunction devices. InAs nanocrystals, that are of particular relevance for short wave IR detection and emission

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  4. 31 Jan 2023 Journal Article Nanophotonics

    On the relation between electrical and electro-optical properties of tunnelling injection quantum dot lasers

    Vissarion Mikhelashvili, Lior Gal, Guy Seri, Sven Bauer, Igor Khanonkin, Ori Eyal, Amnon Willinger, Johann Peter Reithmaier, Gadi Eisenstein
    Abstract

    We present a comprehensive study of the temperature dependent electronic and optoelectronic properties of a tunnelling injection quantum dot laser. The optical power-voltage ( P opt – V ) characteristics are shown to be correlated with the current-voltage ( I – V ) and capacitance-voltage ( C – V ) dependencies at low and elevated temperatures. Cryogenic temperature

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  5. 16 Jan 2023 Journal Article Nature Materials

    From enhanced diffusion to ultrafast ballistic motion of hybrid light–matter excitations

    Mukundakumar Balasubrahmaniyam, Arie Simkhovich, Adina Golombek, Gal Sandik, Guy Ankonina, Tal Schwartz
    Abstract

    Transport of excitons and charge carriers in molecular systems can be enhanced by coherent coupling to photons, giving rise to the formation of hybrid excitations known as polaritons. Such enhancement has far-reaching technological implications; however, the enhancement mechanism and the transport nature of these hybrid excitations remain elusive. Here we map the

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  6. 6 Jan 2023 Journal Article Physical Review X

    Observation of 2D Cherenkov Radiation

    Abstract

    For over 80 years of research, the conventional description of free-electron radiation phenomena, such as Cherenkov radiation, has remained unchanged: classical three-dimensional electromagnetic waves. Interestingly, in reduced dimensionality, the properties of free-electron radiation are predicted to fundamentally change. Here, we present the first observation of

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  7. 2 Jan 2023 Preprint arXiv

    Edge-based 2D alpha-In2Se3-MoS2 ferroelectric field effect device

    Debopriya Dutta, Subhrajit Mukherjee, Michael Uzhansky, Pranab K Mohapatra, Ariel Ismach, Gad Koren
    Abstract

    Heterostructures based on two dimensional (2D) materials offer the possibility to achieve synergistic functionalities which otherwise remain secluded by their individual counterparts. Herein ferroelectric polarization switching in alpha-In2Se3 has been utilized to engineer multilevel non-volatile conduction states in partially overlapping alpha-In2Se3-MoS2 based

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  8. 14 Dec 2022 Journal Article The Applied Computational Electromagnetics Society Journal (ACES)

    Advanced Numerical and Experimental Analysis of Ultra-Miniature Surface Resonators

    Yakir Ishay, Yaron Artzi, Nir Dahan, David Cristea, Aharon Blank
    Abstract

    Many scientific and technological applications make use of strong microwave fields. These are often realized in conjunction with microwave resonators that have small geometric features in which such fields are generated. For example, in magnetic resonance, large microwave and RF magnetic fields make it possible to achieve fast control over the measured electron or

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  9. 6 Dec 2022 Journal Article Lab on a Chip

    A 3D-printed microfluidic gradient generator with integrated photonic silicon sensors for rapid antimicrobial susceptibility testing

    Christopher Heuer, John-Alexander Preuss, Marc Buttkewitz, Thomas Scheper, Ester Segal, Janina Bahnemann
    Abstract

    With antimicrobial resistance becoming a major threat to healthcare settings around the world, there is a paramount need for rapid point-of-care antimicrobial susceptibility testing (AST) diagnostics. Unfortunately, most currently available clinical AST tools are lengthy, laborious, or are simply inappropriate for point-of-care testing. Herein, we design a 3D-printed

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  10. 4 Dec 2022 Journal Article ChemPhysChem

    Pulsed Electron-Nuclear Double Resonance in the Fourier Regime

    Abstract

    Nuclear magnetic resonance (NMR) spectroscopy provides atomic-level molecular structural information.  However, in molecules containing unpaired electron spins, NMR signals are difficult to measure directly.  In such cases, data is obtained using the electron-nuclear double resonance (ENDOR) method, where nuclei are detected through their interaction with

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