Widegap Semiconductors for Power Electronics

Emergent widegap semiconductors – such as gallium oxide – are explored for applications in power electronics, including the harsh operational environments associated with electric-vehicles and with renewable power grids.

Train inside of station.

Widegap devices will control electric cars, unmanned aerial vehicles and all-electric trains and aircrafts. They will also apply to renewable energy grids such as those powered by solar and/or wind energy.

Selected Publications

  • C. Nath Saha, A. Vaidya, A. F. M. Bhuiyan, L. Meng, S. Sharma, H. Zhao, and U. Singisetti, "Scaled β-Ga2O3 thin channel MOSFET with 5.4 MV/cm average breakdown field and near 50 GHz fMAX", Applied Physics Letters 122, 182106 (2023).
  • S. Sharma, L. Meng, A. F. M Bhuiyan, Z. Feng, D. Eason, H. Zhao, and U. Singisetti, “Vacuum Annealed β-Ga2O3 Recess Channel MOSFETs with 8.56 kV Breakdown Voltage”, IEEE Electron Device Letters 43, 2029 (2022).
  • S. Sharma, K. Zeng, S. Saha, and U. Singisetti, “Field-Plated Lateral Ga2O3 MOSFETs With Polymer Passivation and 8.03 kV Breakdown Voltage” IEEE Electron Device Letters 41, 836 (2020).