Sub 60 mV/decade switch using an InAs nanowire-Si heterojunction and turn-on voltage shift with a pulsed doping technique.

Tomioka, Katsuhiro; Yoshimura, Masatoshi; Fukui, Takashi · Nano Lett · 2013

basic_science · Level V

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Abstract

We report changes of turn-on voltage in InAs-Si heterojunction steep subthreshold-slope transistors by the Zn-pulsed doping technique for InAs nanowire channels. The doping of the nanowire channel moderately changes turn-on voltage from negative to positive voltage, while keeping a steep subthreshold-slope of 30 mV/decade under reverse bias direction. The formation of pseudointrinsic InAs segment is found to be important to make a normally off transistor with a steep subthreshold slope.

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