Recent Advances in Electric-Double-Layer Transistors for Bio-Chemical Sensing Applications

Overview

Journal Sensors (Basel)

Publisher MDPI

Specialty Biotechnology

Date 2019 Aug 8

PMID 31387221

Citations 13

Authors

Ning Liu

Ru Chen

Qing Wan

Affiliations

Soon will be listed here.

Abstract

As promising biochemical sensors, ion-sensitive field-effect transistors (ISFETs) are used widely in the growing field of biochemical sensing applications. Recently, a new type of field-effect transistor gated by ionic electrolytes has attracted intense attention due to the extremely strong electric-double-layer (EDL) gating effect. In such devices, the carrier density of the semiconductor channel can be effectively modulated by an ion-induced EDL capacitance at the semiconductor/electrolyte interface. With advantages of large specific capacitance, low operating voltage and sensitive interfacial properties, various EDL-based transistor (EDLT) devices have been developed for ultrasensitive portable sensing applications. In this article, we will review the recent progress of EDLT-based biochemical sensors. Starting with a brief introduction of the concepts of EDL capacitance and EDLT, we describe the material compositions and the working principle of EDLT devices. Moreover, the biochemical sensing performances of several important EDLTs are discussed in detail, including organic-based EDLTs, oxide-based EDLTs, nanomaterial-based EDLTs and neuromorphic EDLTs. Finally, the main challenges and development prospects of EDLT-based biochemical sensors are listed.

Citing Articles

Control of sensitivity in metal oxide electrolyte gated field-effect transistor-based glucose sensor by electronegativity modulation.

Song A, Kim M, Yi D, Kwon S, Kim D, Kim S Sci Rep. 2024; 14(1):27251.

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Fabrication of alcohol sensor using undoped and Al doped ZnO nanostructure film with polymer electrolyte gating.

Bhattarai R, Bahadur Thapa R, Das Mulmi D, Ram Ghimire R Heliyon. 2024; 10(11):e32281.

PMID: 38961912 PMC: 11219309. DOI: 10.1016/j.heliyon.2024.e32281.

Electrical Double-Layer Transistors Comprising Block Copolymer Electrolytes for Low-Power-Consumption Photodetectors.

Lin H, Weng Y, Mulia T, Liu C, Lin Y, Yu Y ACS Appl Mater Interfaces. 2024; 16(19):25042-25052.

PMID: 38706304 PMC: 11103659. DOI: 10.1021/acsami.4c01959.

Wide-range and selective detection of SARS-CoV-2 DNA via surface modification of electrolyte-gated IGZO thin-film transistors.

Hwang C, Baek S, Song Y, Lee W, Park S iScience. 2024; 27(3):109061.

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Electric Double Layer Based Epidermal Electronics for Healthcare and Human-Machine Interface.

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