Design optimization of an optically drivable heterogeneous MOSFET with silicon compatibility

Seongjae Cho, Hyungjin Kim, S. J.Ben Yoo, Byung Gook Park, James S. Harris

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations


Optical and electronic devices for optoelectronic integrated circuits have been extensively studied, and now, more efforts for the conversion between optical and electrical signals are accordingly required. In this work, a silicon (Si)-compatible optically drivable III-V-on-Si metal-oxide-semiconductor field-effect transistor (MOSFET) is studied by simulation. The proposed optoelectronic device provides a strong interface between the optical and the electronic platforms as a key component of the optical interconnect. The optically driven MOSFET device is analogously analyzed into a photodetector and its complementary device, getting rid of receiver circuitry, which improves the integration density and simplifies the fabrication processes. To realize the optical switching with maximized photo-sensing region, a bottom gate is formed to modulate the channel, where germanium (Ge) and gallium arsenide (GaAs) are the active materials on Si platform. Both direct-current (DC) and alternating-current (AC) performances of an optimized device are evaluated.

Original languageEnglish
Title of host publicationPhysics and Simulation of Optoelectronic Devices XXI
ISBN (Print)9780819493880
StatePublished - 2013
EventPhysics and Simulation of Optoelectronic Devices XXI - San Francisco, CA, United States
Duration: 4 Feb 20137 Feb 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferencePhysics and Simulation of Optoelectronic Devices XXI
Country/TerritoryUnited States
CitySan Francisco, CA


  • Optoelectronics
  • integrated circuit
  • metal-oxide-semiconductor field-effect transistor
  • optical interconnect
  • optical switching
  • photodetector
  • silicon compatibility


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