All Stories

  1. Formation of nitrogen-vacancy centers in 4H-SiC and their near infrared photoluminescence properties

    Article • Journal of Applied Physics, August 2019, American Institute of Physics

    Shin-ichiro Sato, Prof. Yasuto YH Hijikata, Prof. Takeshi Ohshima

  2. 4H-SiC Trench pMOSFETs for High-Frequency CMOS Inverters

    Article • Materials Science Forum, July 2019, Trans Tech Publications

    Prof. Takeshi Ohshima, Shin-Ichiro Kuroki

  3. Suppression of Short-Channel Effects in 4H-SiC Trench MOSFETs

    Article • Materials Science Forum, July 2019, Trans Tech Publications

    Shin-Ichiro Kuroki, Prof. Takeshi Ohshima

  4. Direct Bonding of 4H-SiC and SOI Wafers for Radiation-Hardened Image Sensors

    Article • Materials Science Forum, July 2019, Trans Tech Publications

    Prof. Takeshi Ohshima, Shin-Ichiro Kuroki

  5. Creation of Color Centers in SiC PN Diodes Using Proton Beam Writing

    Article • Materials Science Forum, July 2019, Trans Tech Publications

    yuichi yamazaki, Shin-ichiro Sato, Prof. Takeshi Ohshima, Prof. Yasuto YH Hijikata

  6. First-Principles Study on Photoluminescence Quenching of Divacancy in 4H SiC

    Article • Materials Science Forum, July 2019, Trans Tech Publications

    Prof. Takeshi Ohshima

  7. Energy levels and charge state control of the carbon antisite-vacancy defect in 4H-SiC

    Article • Applied Physics Letters, May 2019, American Institute of Physics

    Prof. Takeshi Ohshima, Hiroshi Abe

  8. Identification of divacancy and silicon vacancy qubits in 6H-SiC

    Article • Applied Physics Letters, March 2019, American Institute of Physics

    Prof. Takeshi Ohshima

  9. Acceptor levels of the carbon vacancy in 4H-SiC: Combining Laplace deep level transient spectroscopy with density functional modeling

    Article • Journal of Applied Physics, December 2018, American Institute of Physics

    Prof. Takeshi Ohshima, Jose Coutinho, Vladimir Markevich

  10. Extending coherence time of macro-scale diamond magnetometer by dynamical decoupling with coplanar waveguide resonator

    Article • Review of Scientific Instruments, December 2018, American Institute of Physics

    Prof. Takeshi Ohshima

  11. Fabrication of Two-Dimensional Arrays of Fluorescent Centers in Single-Crystalline Diamond Using Particle Beam Writing

    Article • Key Engineering Materials, November 2018, Trans Tech Publications

    wataru kada, Shinobu Onoda, Prof. Takeshi Ohshima

  12. Various Single Photon Sources Observed in SiC Pin Diodes

    Article • Materials Science Forum, June 2018, Trans Tech Publications

    Prof. Takeshi Ohshima, Prof. Yasuto YH Hijikata, Shin-ichiro Sato, Shinobu Onoda

  13. Ab Initio Theory of Si-Vacancy Quantum Bits in 4H and 6H-SiC

    Article • Materials Science Forum, June 2018, Trans Tech Publications

    Prof. Takeshi Ohshima

  14. Deep Level Defects in 4H-SiC Epitaxial Layers

    Article • Materials Science Forum, June 2018, Trans Tech Publications

    Prof. Takeshi Ohshima, Shin-ichiro Sato, Tomislav Brodar, Ivana Capan

  15. Low-Parasitic-Capacitance Self-Aligned 4H-SiC nMOSFETs for Harsh Environment Electronics

    Article • Materials Science Forum, June 2018, Trans Tech Publications

    Shin-Ichiro Kuroki, Prof. Takeshi Ohshima

  16. 4H-SiC pMOSFETs with Al-Doped S/D and NbNi Silicide Ohmic Contacts

    Article • Materials Science Forum, June 2018, Trans Tech Publications

    Shin-Ichiro Kuroki, Prof. Takeshi Ohshima

  17. Oxidation-Process Dependence of Single Photon Sources Embedded in 4H-SiC MOSFETs

    Article • Materials Science Forum, June 2018, Trans Tech Publications

    wataru kada, Prof. Takeshi Ohshima, Shinobu Onoda

  18. Silicon vacancy creation in SiC by proton beam writing

    Article • Materials Science Forum, May 2017, Trans Tech Publications

    Prof. Takeshi Ohshima, Prof. Yasuto YH Hijikata, Dr Brett Cameron Johnson, Stefania castelletto

  19. 4H-SiC Pseudo-CMOS Logic Inverters for Harsh Environment Electronics

    Article • Materials Science Forum, May 2017, Trans Tech Publications

    Prof. Takeshi Ohshima, Shin-Ichiro Kuroki

  20. Qualification Test Results of IMM Triple-Junction Solar Cells, Space Solar Sheets, and Lightweight&Compact Solar Paddle

    Article • E3S Web of Conferences, January 2017, EDP Sciences

    Prof. Takeshi Ohshima