학술논문

High-Current GaSb/InAs(Sb) Nanowire Tunnel Field-Effect Transistors
Document Type
Source
IEEE Electron Device Letters NanoLund: Centre for Nanoscience. 34(2):211-213
Subject
Broken gap
GaSb
III–V
InAs
tunnel field-effect transistors (TFETs)
Naturvetenskap
Fysik
Den kondenserade materiens fysik
Natural Sciences
Physical Sciences
Condensed Matter Physics
Teknik
Elektroteknik och elektronik
Engineering and Technology
Electrical Engineering
Electronic Engineering
Information Engineering
Language
English
ISSN
0741-3106
Abstract
We present electrical characterization of GaSb/InAs(Sb) nanowire tunnel field-effect transistors. The broken band alignment of the GaSb/InAs(Sb) heterostructure is exploited to allow for interband tunneling without a barrier, leading to high ON-current levels. We report a maximum drive current of 310 μA/μm at Vds = 0.5 V. Devices with scaled gate oxides display transconductances up to gm = 250 mS/mm at Vds = 300 mV, which are normalized to the nanowire circumference at the axial heterojunction.