Quantum physics applied to modern optical metal oxide semiconductor transistor

Michael Bendayan, Avraham Chelly, Avi Karsenty

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


In recent years, traditional complementary metal-oxide-semiconductor (CMOS) scaling techniques have begun to reach the technological limits of available materials. A revolution in block-to-block communication is necessary to meet the ever-growing demand for microprocessor computational power. On-chip optical communication has been designated as a promising solution to circumvent the CMOS scaling bottlenecks: second-order phenomenon, which causes significant interconnect delays, and the nonscalability of the thermal voltage, which becomes significant in submicron CMOS technology. The metal oxide semiconductor quantum well transistor, a silicon-on-insulator metal-oxide-semiconductor field-effect transistor device, with a channel thickness reduced to the single nanometer scale is examined. The nanometric gate oxide, silicon, and buried oxide heterostructure in the channel forms a quantum potential well, creating discrete sub-bands within the silicon layer. Inter-sub-band-transitions within the quantum well may allow for radiative recombination in indirect band gap materials.

Original languageEnglish
Article number097106
JournalOptical Engineering
Issue number9
StatePublished - 1 Sep 2019

Bibliographical note

Publisher Copyright:
© 2019 Society of Photo-Optical Instrumentation Engineers (SPIE).


  • gate-recessed-channel
  • inter-sub-band transitions
  • on-chip optical communication
  • quantum well
  • silicon-on-insulator


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