Past research projects

Imaging systems

  • Low-cost digital x-ray system for tuberculosis screening
  • Amorphous silicon (a-Si)-based large area detector for protein crystallography
  • Off-panel readout electronics for a large area x-ray imaging amplified pixel array
  • Integration of an amorphous selenium (a-Se) x-ray detector with

    crystalline silicon (c-Si) complementary metal oxide semiconductor (CMOS) technology

Circuit technology

  • Photon quantum noise-limited pixel and array architectures in a-Si Technology
  • Current-programmed active pixel sensors for large area diagnostic x-ray imaging
  • Multi-mode pixel architectures for large-area real-time x-ray imaging

Semiconductor devices

  • Lateral amorphous selenium metal-semiconductor-metal photodiodes
  • Organic semiconductor detector for large area digital imaging
  • Plasma enhanced chemical vapour deposition (PECVD) grown silicon nanowires for thin-film photovoltaics
  • Self-aligned polysilicon gate metal–oxide–semiconductor field-effect transistor (MOSFET) for large area electronics