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Search results for: wide bandgap semiconductors

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Search results for: wide bandgap semiconductors

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Search results for: wide bandgap semiconductors

  • Scheelite-Type Wide-Bandgap ABO4 Compounds (A = Ca, Sr, and Ba; B = Mo and W) as Potential Photocatalysts for Water Treatment

    Publication

    - Journal of Physical Chemistry C - Year 2021

    In the present study, alkaline-earth metal scheelite-type compounds ABO4 (A = Ca, Sr, Ba, B = Mo, W) synthesized by a hydrothermal method were systematically studied. The as-obtained photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunauer-Emmett-Teller surface area analysis (BET), UV–Vis diffuse reflectance spectroscopy (DR/UV-Vis), photoluminescence, and thermoluminescence (TL)...

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  • Stannates, titanates and tantalates modified with carbon and graphene quantum dots for enhancement of visible-light photocatalytic activity

    Publication
    • M. Paszkiewicz-Gawron
    • K. Ewa
    • M. Endo-Kimura
    • J. Zwara
    • A. Pancielejko
    • K. Wang
    • W. Lisowski
    • J. Łuczak
    • A. Zaleska-Medynska
    • E. Grabowska-Musiał

    - APPLIED SURFACE SCIENCE - Year 2021

    Most efforts in heterogeneous photocatalysis are focused on development of new and stable photoactive materials efficient in degradation of various pollutants under visible-light irradiation. In this regard, the wide-bandgap perovskite semiconductors, i.e., SrTiO3 (titanate), SrSnO3 (stannate) and AgTaO3 (tantalate), were prepared by a solvothermal method, and then modified with carbon quantum dots (CQDs) or graphene quantum dots...

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  • Paweł Derkacz

    People

    Pawel B. Derkacz was born in Miastko, Poland, in 1993. He received the B.Sc. and M.Sc. degrees in electrical engineering from the Gdansk University of Technology (GUT), Gdansk, Poland, in 2016 and 2017, respectively. In October 2017, he joined the Faculty of Electrical and Control Engineering at GUT Gdansk. In June 2019, he joined the Grenoble Electrical Engineering Laboratory (G2Elab) at Grenoble Institute of Technology (Grenoble...

  • On the mechanism of photocatalytic reactions on CuxO@TiO2 core–shell photocatalysts

    Publication

    - Journal of Materials Chemistry A - Year 2021

    Titania (titanium(IV) oxide) is a highly active, stable, cheap and abundant photocatalyst, and is thus commonly applied in various environmental applications. However, two main shortcomings of titania, i.e., charge carrier recombination and inactivity under visible-light (vis) irradiation, should be overcome for widespread commercialization. Accordingly, titania has been doped, surface modified and coupled with various ions/compounds,...

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  • Electron mobility variance in semiconductors: the variance approach

    Publication
    • S. Melkonyan
    • H. Asriyan
    • A. Surmalyan
    • J. Smulko

    - Armenian Journal of Physics - Year 2011

    Praca przedstawia nowe podejście da analizy zjawisk losowych w półprzewodnikach. Uwzględnia kilka mechanizmów zjawisk fluktuacji ruchliwości w półprzewodnikach, prowadzących do powstawamai składowej szumów typu 1/f, dominujących w zakresie małych czetotliwości. Przedstawia analizę sposobu wyznaczenia stałej Hooge'a określającej intensywność szumów typu 1/f.The statistical non-triviality of current carrier mobility fluctuations...

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