Liquid and back gate coupling effect: Toward biosensing with lowest detection limit

Sergii Pud; Jing Li; Volodymyr Sibiliev; Mykhaylo Petrychuk; Valery Kovalenko; Andreas Offenhäusser; Svetlana Vitusevich

doi:10.1021/nl403748x

Liquid and back gate coupling effect: Toward biosensing with lowest detection limit

Sergii Pud
, Jing Li
, Volodymyr Sibiliev
, Mykhaylo Petrychuk
, Valery Kovalenko
, Andreas Offenhäusser
, Svetlana Vitusevich^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

44 Citations (Scopus)

Abstract

We employ noise spectroscopy and transconductance measurements to establish the optimal regimes of operation for our fabricated silicon nanowire field-effect transistors (Si NW FETs) sensors. A strong coupling between the liquid gate and back gate (the substrate) has been revealed and used for optimization of signal-to-noise ratio in subthreshold as well as above-threshold regimes. Increasing the sensitivity of Si NW FET sensors above the detection limit has been predicted and proven by direct experimental measurements.

Original language	English
Pages (from-to)	578-584
Number of pages	7
Journal	Nano letters
Volume	14
Issue number	2
DOIs	https://doi.org/10.1021/nl403748x
Publication status	Published - 12 Feb 2014
Externally published	Yes

Keywords

FET
gate coupling
liquid gate
noise spectroscopy
signal-to-noise ratio
Silicon nanowires

Access to Document

10.1021/nl403748x

Cite this

@article{d3af912ab83d4f2cb805a7ab01fa126c,

title = "Liquid and back gate coupling effect: Toward biosensing with lowest detection limit",

abstract = "We employ noise spectroscopy and transconductance measurements to establish the optimal regimes of operation for our fabricated silicon nanowire field-effect transistors (Si NW FETs) sensors. A strong coupling between the liquid gate and back gate (the substrate) has been revealed and used for optimization of signal-to-noise ratio in subthreshold as well as above-threshold regimes. Increasing the sensitivity of Si NW FET sensors above the detection limit has been predicted and proven by direct experimental measurements.",

keywords = "FET, gate coupling, liquid gate, noise spectroscopy, signal-to-noise ratio, Silicon nanowires",

author = "Sergii Pud and Jing Li and Volodymyr Sibiliev and Mykhaylo Petrychuk and Valery Kovalenko and Andreas Offenh{\"a}usser and Svetlana Vitusevich",

year = "2014",

month = feb,

day = "12",

doi = "10.1021/nl403748x",

language = "English",

volume = "14",

pages = "578--584",

journal = "Nano letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "2",

}

TY - JOUR

T1 - Liquid and back gate coupling effect

T2 - Toward biosensing with lowest detection limit

AU - Pud, Sergii

AU - Li, Jing

AU - Sibiliev, Volodymyr

AU - Petrychuk, Mykhaylo

AU - Kovalenko, Valery

AU - Offenhäusser, Andreas

AU - Vitusevich, Svetlana

PY - 2014/2/12

Y1 - 2014/2/12

N2 - We employ noise spectroscopy and transconductance measurements to establish the optimal regimes of operation for our fabricated silicon nanowire field-effect transistors (Si NW FETs) sensors. A strong coupling between the liquid gate and back gate (the substrate) has been revealed and used for optimization of signal-to-noise ratio in subthreshold as well as above-threshold regimes. Increasing the sensitivity of Si NW FET sensors above the detection limit has been predicted and proven by direct experimental measurements.

AB - We employ noise spectroscopy and transconductance measurements to establish the optimal regimes of operation for our fabricated silicon nanowire field-effect transistors (Si NW FETs) sensors. A strong coupling between the liquid gate and back gate (the substrate) has been revealed and used for optimization of signal-to-noise ratio in subthreshold as well as above-threshold regimes. Increasing the sensitivity of Si NW FET sensors above the detection limit has been predicted and proven by direct experimental measurements.

KW - FET

KW - gate coupling

KW - liquid gate

KW - noise spectroscopy

KW - signal-to-noise ratio

KW - Silicon nanowires

UR - https://www.scopus.com/pages/publications/84894196979

U2 - 10.1021/nl403748x

DO - 10.1021/nl403748x

M3 - Article

C2 - 24392670

AN - SCOPUS:84894196979

SN - 1530-6984

VL - 14

SP - 578

EP - 584

JO - Nano letters

JF - Nano letters

IS - 2

ER -

Liquid and back gate coupling effect: Toward biosensing with lowest detection limit

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this