Tin - an unlikely ally for silicon field effect transistors?

Aftab M. Hussain, Hossain M. Fahad, Nirpendra Singh, Galo A.Torres Sevilla, Udo Schwingenschlögl, Muhammad M. Hussain

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

We explore the effectiveness of tin (Sn), by alloying it with silicon, to use SiSn as a channel material to extend the performance of silicon based complementary metal oxide semiconductors. Our density functional theory based simulation shows that incorporation of tin reduces the band gap of Si(Sn). We fabricated our device with SiSn channel material using a low cost and scalable thermal diffusion process of tin into silicon. Our high-κ/metal gate based multi-gate-field-effect-transistors using SiSn as channel material show performance enhancement, which is in accordance with the theoretical analysis.

Original languageBritish English
Pages (from-to)332-335
Number of pages4
JournalPhysica Status Solidi - Rapid Research Letters
Volume8
Issue number4
DOIs
StatePublished - Apr 2014

Keywords

  • Density functional theory
  • Field-effect transistor
  • SiSn
  • Tin

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