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Source Design of Vertical III-V Nanowire Tunnel Field-Effect Transistors

Rangasamy, Gautham LU ; Zhu, Zhongyunshen LU orcid and Wernersson, Lars-Erik LU (2024) In IEEE Journal on Exploratory Solid-State Computational Devices and Circuits p.1-1
Abstract
We systematically fabricate devices and analyse data for vertical InAs/(In)GaAsSb nanowire Tunnel Field-Effect Transistors, to study the influence of source dopant position and level on their device performance. The results show that delaying the introduction of dopants further in the GaAsSb source segments improved the transistor metrics (subthreshold swing and the ON-current performance), due to the formation of a nid-InAsSb segment. The devices display a minimum subthreshold swing of 26 mV/dec and ON-current of 10.2 μA/μm at V DS of 300 mV. The performance of devices were improved further by optimizing the doping levels which led to record subthermal current of 1.2 μA/μm and transconductance of 205... (More)
We systematically fabricate devices and analyse data for vertical InAs/(In)GaAsSb nanowire Tunnel Field-Effect Transistors, to study the influence of source dopant position and level on their device performance. The results show that delaying the introduction of dopants further in the GaAsSb source segments improved the transistor metrics (subthreshold swing and the ON-current performance), due to the formation of a nid-InAsSb segment. The devices display a minimum subthreshold swing of 26 mV/dec and ON-current of 10.2 μA/μm at V DS of 300 mV. The performance of devices were improved further by optimizing the doping levels which led to record subthermal current of 1.2 μA/μm and transconductance of 205 μS/μm at V DS of 500 mV. (Less)
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author
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publishing date
type
Contribution to journal
publication status
epub
subject
in
IEEE Journal on Exploratory Solid-State Computational Devices and Circuits
pages
1 - 1
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85182944988
ISSN
2329-9231
DOI
10.1109/JXCDC.2024.3355949
language
English
LU publication?
yes
id
b7bd249f-0403-4972-b147-bb3348285296
date added to LUP
2024-02-02 16:08:45
date last changed
2024-02-06 16:07:34
@article{b7bd249f-0403-4972-b147-bb3348285296,
  abstract     = {{We systematically fabricate devices and analyse data for vertical InAs/(In)GaAsSb nanowire Tunnel Field-Effect Transistors, to study the influence of source dopant position and level on their device performance. The results show that delaying the introduction of dopants further in the GaAsSb source segments improved the transistor metrics (subthreshold swing and the ON-current performance), due to the formation of a nid-InAsSb segment. The devices display a minimum subthreshold swing of 26 mV/dec and ON-current of 10.2 μA/μm at V <i style="box-sizing: border-box;">DS</i> of 300 mV. The performance of devices were improved further by optimizing the doping levels which led to record subthermal current of 1.2 μA/μm and transconductance of 205 μS/μm at V <i style="box-sizing: border-box;">DS</i> of 500 mV.}},
  author       = {{Rangasamy, Gautham and Zhu, Zhongyunshen and Wernersson, Lars-Erik}},
  issn         = {{2329-9231}},
  language     = {{eng}},
  month        = {{01}},
  pages        = {{1--1}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Journal on Exploratory Solid-State Computational Devices and Circuits}},
  title        = {{Source Design of Vertical III-V Nanowire Tunnel Field-Effect Transistors}},
  url          = {{http://dx.doi.org/10.1109/JXCDC.2024.3355949}},
  doi          = {{10.1109/JXCDC.2024.3355949}},
  year         = {{2024}},
}