41. Multi-layer palladium diselenide as a contact material for two-dimensional tungsten diselenide field-effect transistorsGennadiy Murastov, Muhammad Awais Aslam, Simon Leitner, Vadym Tkachuk, Iva Plutnarová, Egon Pavlica, Raul D. Rodriguez, Zdeněk Sofer, Aleksandar Matković, 2024, original scientific article Abstract: Tungsten diselenide (WSe2) has emerged as a promising ambipolar semiconductor material for field-effect transistors (FETs) due to its unique electronic properties, including a sizeable band gap, high carrier mobility, and remarkable on–off ratio. However, engineering the contacts to WSe2 remains an issue, and high contact barriers prevent the utilization of the full performance in electronic applications. Furthermore, it could be possible to tune the contacts to WSe2 for effective electron or hole injection and consequently pin the threshold voltage to either conduction or valence band. This would be the way to achieve complementary metal–oxide–semiconductor devices without doping of the channel material.This study investigates the behaviour of two-dimensional WSe2 field-effect transistors with multi-layer palladium diselenide (PdSe2) as a contact material. We demonstrate that PdSe2 contacts favour hole injection while preserving the ambipolar nature of the channel material. This consequently yields high-performance p-type WSe2 devices with PdSe2 van der Waals contacts. Further, we explore the tunability of the contact interface by selective laser alteration of the WSe2 under the contacts, enabling pinning of the threshold voltage to the valence band of WSe2, yielding pure p-type operation of the devices.
Keywords: field-effect transistor, tungsten diselenide, van der Waals, two-dimensional materials
Published in RUNG: 29.05.2024; Views: 501; Downloads: 3
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42. Sustainable digital preservation of new media artNarvika Bovcon, Eszter Polónyi, Jaka Železnikar, Aleš Vaupotič, 2023, published scientific conference contribution Abstract: This paper is about two pilot studies conducted in 2022 that aimed to develop a model for preserving and archiving new media art work in the context of a research project on the sustainable digital preservation of new media art that is being co-hosted by the Museum of Modern Art in Ljubljana. As the works of art selected for the study by Slovenian new media art pioneers Vuk Ćosić (2000) and Srečo Dragan (2005) were technically obsolete or non-functional by the time of the study, the question of how to bring the artworks back into existence and what components of each artwork to include in the collection and preservation process constituted one aspect of our research. But this process of reconstruction also raised questions about how the preservation of media art is reshaping the practice of archiving within an institution whose holdings were, until recently, largely in traditional mediums. An interdisciplinary approach addressed the problem from different points of view, involving the practitioners, experts from art-history, museology, computer science, media theory and intellectual property rights.
Keywords: digital cultural heritage, new media art preservation, new media art archives
Published in RUNG: 28.05.2024; Views: 381; Downloads: 2
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45. Oxidative potential of particulate matter and its association to respiratory health endpoints in high-altitude cities in BoliviaLucille Borlaza-Lacoste, Valeria Mardoñez, Anouk Marsal, Ian Hough, Thuy Vy Dinh Ngoc, Pamela Dominutti, Jean-Luc Jaffrezo, Andrés Alastuey, Jean-Luc Besombes, Griša Močnik, 2024, original scientific article Keywords: particulate matter, oxidative potential, respiratory health, Bolivia, source apportionment, Positive matrix factorization, Poisson regression
Published in RUNG: 22.05.2024; Views: 442; Downloads: 0
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46. Differential scanning calorimetry of proteins and the two-state model : comparison of two formulasKnarik Yeritsyan, Artem Badasyan, 2024, original scientific article Abstract: Differential Scanning Calorimetry (DSC) is a regular and powerful tool to measure the specific heat profile of various materials. In order to connect the measured profile to the properties of a particular protein, a model is required to fit. We discuss here the application of an exact two-state formula with its approximation and process the DSC experimental data on protein folding in water. The approximate formula relies on the smallness of the transition interval, which is different for each protein. With an example of the set of 33 different proteins, we show the practical validity of the approximation and the equivalence of exact and approximate two-state formulas for processing DSC data.
Keywords: protein folding, differential scanning calorimetry, heat capacity, two-state model, Hawley model
Published in RUNG: 21.05.2024; Views: 505; Downloads: 3
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47. JWST photometric time-delay and magnification measurements for the triply imaged type ia "SN H0pe" at z=1.78Justin Pierel, B. L. Frye, M. Pascale, Gabriel Bartosch Caminha, W. Chen, S. Dhawan, D. Gilman, M. Grayling, Mateusz Bronikowski, Tanja Petrushevska, 2024, original scientific article Keywords: supernova, strong lensing, cosmology, Hubble constant, James Webb Space Telescope
Published in RUNG: 21.05.2024; Views: 514; Downloads: 3
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