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Low-voltage driven flexible organic thin-film transistor humidity sensors.

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Title: Low-voltage driven flexible organic thin-film transistor humidity sensors.
Authors: Yin, Ming-Jie1 (AUTHOR), Li, Zi-Rong1 (AUTHOR), Lv, Tian-Run1 (AUTHOR), Yong, Ken-Tye1,2,3 (AUTHOR) ken.yong@sydney.edu.au, An, Quan-Fu1 (AUTHOR) anqf@bjut.edu.cn
Source: Sensors & Actuators B: Chemical. Jul2021, Vol. 339, pN.PAG-N.PAG. 1p.
Subjects: Acrylic acid, Transistors, Humidity, Detectors, Biomedical engineering, Voltage-gated ion channels
Abstract: A flexible organic thin-film transistor humidity sensor was developed by employing moisture-responsive poly (acrylic acid) as dielectric layer, which shows reversibly linear response to environmental humidity and can work well with a low driven voltage of 2 V due to electrical double layer generation. [Display omitted] • A reversibly linear response flexible OTFT humidity sensor was developed. • The electrical double layer formation significantly the energy consumption of the sensors. • The sensitivity of the fabricated sensor can be enhanced 15-fold by tuning the gate voltage. • A fast response time of around 4 s was achieved. • The prepared sensor can be integrated into various miniaturized devices for portable sensor development. Relative humidity (RH) is broadly involved in various areas, including industry, agriculture, medical engineering, as well as environments. Thus, development of a high-performance, low-energy consumption, flexible, and miniaturized RH sensing device is quite essential to meet the modern requirements. However, it is still a grand challenge to endow a RH sensor with all the above strengths. Herein, according to the electrical double layer mechanism, a RH-responsive poly (acrylic acid) is employed as a sensing layer and simultaneously a dielectric layer for fabrication of flexible organic thin-film transistor (OTFT) RH sensors, which could remarkably reduce the driven voltage of the OTFT device to 2 V. The sensitivity of such-designed sensors can be manipulated by tuning the driven voltage. Notably, all the fabricated OTFT sensing devices show reversibly linear response to RH and a fast response of around 4 s. Due to the solution-processing abilities and flexibility of the OTFT device, it can be miniaturized and integrated into multiple functional devices, e.g., soft medical devices. [ABSTRACT FROM AUTHOR]
Copyright of Sensors & Actuators B: Chemical is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 150007751
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Low-voltage driven flexible organic thin-film transistor humidity sensors.
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  Data: <searchLink fieldCode="AR" term="%22Yin%2C+Ming-Jie%22">Yin, Ming-Jie</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Zi-Rong%22">Li, Zi-Rong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lv%2C+Tian-Run%22">Lv, Tian-Run</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yong%2C+Ken-Tye%22">Yong, Ken-Tye</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> ken.yong@sydney.edu.au</i><br /><searchLink fieldCode="AR" term="%22An%2C+Quan-Fu%22">An, Quan-Fu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> anqf@bjut.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Sensors+%26+Actuators+B%3A+Chemical%22">Sensors & Actuators B: Chemical</searchLink>. Jul2021, Vol. 339, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Acrylic+acid%22">Acrylic acid</searchLink><br /><searchLink fieldCode="DE" term="%22Transistors%22">Transistors</searchLink><br /><searchLink fieldCode="DE" term="%22Humidity%22">Humidity</searchLink><br /><searchLink fieldCode="DE" term="%22Detectors%22">Detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Biomedical+engineering%22">Biomedical engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Voltage-gated+ion+channels%22">Voltage-gated ion channels</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A flexible organic thin-film transistor humidity sensor was developed by employing moisture-responsive poly (acrylic acid) as dielectric layer, which shows reversibly linear response to environmental humidity and can work well with a low driven voltage of 2 V due to electrical double layer generation. [Display omitted] • A reversibly linear response flexible OTFT humidity sensor was developed. • The electrical double layer formation significantly the energy consumption of the sensors. • The sensitivity of the fabricated sensor can be enhanced 15-fold by tuning the gate voltage. • A fast response time of around 4 s was achieved. • The prepared sensor can be integrated into various miniaturized devices for portable sensor development. Relative humidity (RH) is broadly involved in various areas, including industry, agriculture, medical engineering, as well as environments. Thus, development of a high-performance, low-energy consumption, flexible, and miniaturized RH sensing device is quite essential to meet the modern requirements. However, it is still a grand challenge to endow a RH sensor with all the above strengths. Herein, according to the electrical double layer mechanism, a RH-responsive poly (acrylic acid) is employed as a sensing layer and simultaneously a dielectric layer for fabrication of flexible organic thin-film transistor (OTFT) RH sensors, which could remarkably reduce the driven voltage of the OTFT device to 2 V. The sensitivity of such-designed sensors can be manipulated by tuning the driven voltage. Notably, all the fabricated OTFT sensing devices show reversibly linear response to RH and a fast response of around 4 s. Due to the solution-processing abilities and flexibility of the OTFT device, it can be miniaturized and integrated into multiple functional devices, e.g., soft medical devices. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Sensors & Actuators B: Chemical is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.snb.2021.129887
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Acrylic acid
        Type: general
      – SubjectFull: Transistors
        Type: general
      – SubjectFull: Humidity
        Type: general
      – SubjectFull: Detectors
        Type: general
      – SubjectFull: Biomedical engineering
        Type: general
      – SubjectFull: Voltage-gated ion channels
        Type: general
    Titles:
      – TitleFull: Low-voltage driven flexible organic thin-film transistor humidity sensors.
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          Name:
            NameFull: Yin, Ming-Jie
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            NameFull: Li, Zi-Rong
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            NameFull: Lv, Tian-Run
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            NameFull: Yong, Ken-Tye
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            NameFull: An, Quan-Fu
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              M: 07
              Text: Jul2021
              Type: published
              Y: 2021
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              Value: 339
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            – TitleFull: Sensors & Actuators B: Chemical
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