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Defects in Semiconducting and Dielectric Oxides

FOCUS · MAR-G43 · ID: 3110608

Presentations

  • Geometrical Anatomy for Oxygen Vacancies in Epitaxial Hf<sub>0.5</sub>Zr<sub>0.5</sub>O<sub>2</sub> Films Grown via Atomic Layer Deposition

    ORAL

    –

    Publication: Geometrical Anatomy for Oxygen Vacancies in Epitaxial Hf0.5Zr0.5O2 Films Grown via Atomic Layer Deposition (under review)

    Presenters

    • Chihwan An

      Seoul Natl Univ

    Authors

    • Chihwan An

      Seoul Natl Univ

    • Jung Woo Cho

      Seoul Natl Univ

    • Tae Yoon Lee

      Seoul Natl Univ

    • Myeong Seop Song

      Seoul Natl Univ

    • Baekjune Kang

      Ulsan Natl Inst of Sci & Tech, Ulsan National Institute of Science and Technology

    • Hongju Kim

      Ulsan Natl Inst of Sci & Tech

    • Jun Hee Lee

      Ulsan Natl Inst of Sci & Tech

    • Changhee Sohn

      Ulsan Natl Inst of Sci & Tech, Ulsan National Institute of Science and Technology

    • Seung Chul Chae

      Seoul Natl Univ

    View abstract →

  • The unusual interplay between dopants, surfaces, and interfacial structure in driving charge transfer across hybrid semiconductor-crystalline oxide heterojunctions

    ORAL · Invited

    –

    Publication: 1. S. A. Chambers, Z. H. Lim, J. H. Ngai, D. Biswas, T.-L. Lee, "Probing the electronic properties of gap states near the surface of n-SrTiO3 / i-Si(001) heterojunctions with high sensitivity," Phys. Rev. Mater. 8, 014602 (2024).<br>2. M. Chrysler J. Gabel, T.-L. Lee, Z. Zhu, T. C. Kaspar, P. V. Sushko, S. A. Chambers, and J. H. Ngai, "Surface termination control of charge transfer across a semiconductor-crystalline oxide interface," Phys. Rev. Mater. 7, 084604 (2023).<br>3. M. Chrysler, J. Gabel, T.-L. Lee, A. N. Penn, B. E. Matthews, D. M. Kepaptsoglou, Q. M. Ramasse, J. R. Paudel, R. K. Sah, J. D. Grassi, Z. Zhu, A. X. Gray, J. M. LeBeau, S. R. Spurgeon, S. A. Chambers, P. V. Sushko, and J. H. Ngai, "Tuning band alignment at a semiconductor-crystalline oxide heterojunction via electrostatic modulation of the interfacial dipole," Phys. Rev. Mater. 5, 104603 (2021).<br>4. Z. H. Lim, N. F. Quackenbush, A. Penn, M. Chrysler, M. Bowden, Z. Zhu, J. M. Ablett, T. -L. Lee, J. M. LeBeau, J. C. Woicik, P. V. Sushko, S. A. Chambers and J. H. Ngai, "Charge Transfer and Built-in Electric Fields Between a Crystalline Oxide and Silicon," Phys. Rev. Lett. 123, 026805 (2019).

    Presenters

    • Joseph Ngai

      The University of Texas at Arlington, Department of Physics, University of Texas-Arlington, Arlington, TX 76019, USA, University of Texas at Arlington

    Authors

    • Joseph Ngai

      The University of Texas at Arlington, Department of Physics, University of Texas-Arlington, Arlington, TX 76019, USA, University of Texas at Arlington

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  • Room Temperature Persistent Photoconductivity of KTaO3

    ORAL

    –

    Publication: Room Temperature Persistent Photoconductivity of KTaO3

    Presenters

    • Macarena Maria Santillan

      Washington State University

    Authors

    • Macarena Maria Santillan

      Washington State University

    • Matthew Douglas McCluskey

      Washington State University

    View abstract →

  • Engineering the Defect Chemistry of Oxide Electrolytes for Hydrogen Production

    ORAL · Invited

    –

    Publication: A. J. E. Rowberg et al., Phys. Rev. Mater. 7 (1), 015402 (2023).<br>A. J. E. Rowberg et al., Mater. Adv. 4 (23), 6233 (2023).<br>A. J. E. Rowberg et al., Chem. Mater. 36 (13), 6464 (2024).

    Presenters

    • Andrew Rowberg

      Lawrence Livermore National Laboratory

    Authors

    • Andrew Rowberg

      Lawrence Livermore National Laboratory

    View abstract →