Strained germanium–tin (GeSn) p-channel metal-oxide-semiconductor field-effect-transistors (p-MOSFETs) with ammonium sulfide passivation

作者: Lanxiang Wang , Shaojian Su , Wei Wang , Xiao Gong , Yue Yang

DOI: 10.1016/J.SSE.2013.01.031

关键词:

摘要: Abstract High-mobility strained Ge 0.958 Sn 0.042 p-channel metal-oxide-semiconductor field-effect-transistors (p-MOSFETs) with ammonium sulfide [(NH 4 ) 2 S] surface passivation were demonstrated. A ∼10 nm thick fully-strained single crystalline GeSn layer was epitaxially grown on (1 0 0) substrate as the channel layer. (NH S performed for surface, followed by gate stack formation. p-MOSFETs show decent electrical characteristics and a peak effective mobility of 509 cm /V s, which is highest reported obtained so far.

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