Influence of relative humidity on the electrical response of PEDOT:PSS based organic field-effect transistor
We have investigated the influence of relative humidity on the electrical response of a bottom gate organic field-effect transistor (OFET) with poly(3,4-ethylenedioxythiophene)/poly(4-styrene sulfonate) (PEDOT:PSS) as an active channel material. For sensor fabrication, the organic polymer PEDOT:PSS...
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| Format: | Article |
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Elsevier
2018
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| _version_ | 1825721454341128192 |
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| author | Zafar, Qayyum Abdullah, Shahino Mah Azmer, Mohamad Izzat Najeeb, Mansoor Ani Qadir, Karwan Wasman Sulaiman, Khaulah |
| author_facet | Zafar, Qayyum Abdullah, Shahino Mah Azmer, Mohamad Izzat Najeeb, Mansoor Ani Qadir, Karwan Wasman Sulaiman, Khaulah |
| author_sort | Zafar, Qayyum |
| collection | UM |
| description | We have investigated the influence of relative humidity on the electrical response of a bottom gate organic field-effect transistor (OFET) with poly(3,4-ethylenedioxythiophene)/poly(4-styrene sulfonate) (PEDOT:PSS) as an active channel material. For sensor fabrication, the organic polymer PEDOT:PSS has been spun-cast on highly doped n-Si wafer with preliminary thermally deposited gold, source and drain electrodes. The structural characterization and surface morphology study of active layer has been performed by XRD and FESEM, respectively. From the transfer characteristic curve, the p-type hole conductivity in PEDOT:PSS thin film is confirmed. Whereas from the output current-voltage (I–V) characteristic of the OFET, the Ion/Ioff ratio has been measured to be ∼2.6, when operated at relative humidity (RH) ∼60%. The humidity sensing characteristics of the OFET have further been investigated by exposing the proposed OFET to varied RH levels (40–80% RH) at room temperature (26.2 °C). Within the humidity range examined, the channel current has been observed to amplify by nearly 29.4 times of its magnitude. |
| first_indexed | 2024-03-06T05:50:34Z |
| format | Article |
| id | um.eprints-20222 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:50:34Z |
| publishDate | 2018 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | um.eprints-202222019-01-30T02:35:21Z http://eprints.um.edu.my/20222/ Influence of relative humidity on the electrical response of PEDOT:PSS based organic field-effect transistor Zafar, Qayyum Abdullah, Shahino Mah Azmer, Mohamad Izzat Najeeb, Mansoor Ani Qadir, Karwan Wasman Sulaiman, Khaulah Q Science (General) QC Physics We have investigated the influence of relative humidity on the electrical response of a bottom gate organic field-effect transistor (OFET) with poly(3,4-ethylenedioxythiophene)/poly(4-styrene sulfonate) (PEDOT:PSS) as an active channel material. For sensor fabrication, the organic polymer PEDOT:PSS has been spun-cast on highly doped n-Si wafer with preliminary thermally deposited gold, source and drain electrodes. The structural characterization and surface morphology study of active layer has been performed by XRD and FESEM, respectively. From the transfer characteristic curve, the p-type hole conductivity in PEDOT:PSS thin film is confirmed. Whereas from the output current-voltage (I–V) characteristic of the OFET, the Ion/Ioff ratio has been measured to be ∼2.6, when operated at relative humidity (RH) ∼60%. The humidity sensing characteristics of the OFET have further been investigated by exposing the proposed OFET to varied RH levels (40–80% RH) at room temperature (26.2 °C). Within the humidity range examined, the channel current has been observed to amplify by nearly 29.4 times of its magnitude. Elsevier 2018 Article PeerReviewed Zafar, Qayyum and Abdullah, Shahino Mah and Azmer, Mohamad Izzat and Najeeb, Mansoor Ani and Qadir, Karwan Wasman and Sulaiman, Khaulah (2018) Influence of relative humidity on the electrical response of PEDOT:PSS based organic field-effect transistor. Sensors and Actuators B: Chemical, 255. pp. 2652-2656. ISSN 0925-4005, DOI https://doi.org/10.1016/j.snb.2017.09.076 <https://doi.org/10.1016/j.snb.2017.09.076>. https://doi.org/10.1016/j.snb.2017.09.076 doi:10.1016/j.snb.2017.09.076 |
| spellingShingle | Q Science (General) QC Physics Zafar, Qayyum Abdullah, Shahino Mah Azmer, Mohamad Izzat Najeeb, Mansoor Ani Qadir, Karwan Wasman Sulaiman, Khaulah Influence of relative humidity on the electrical response of PEDOT:PSS based organic field-effect transistor |
| title | Influence of relative humidity on the electrical response of PEDOT:PSS based organic field-effect transistor |
| title_full | Influence of relative humidity on the electrical response of PEDOT:PSS based organic field-effect transistor |
| title_fullStr | Influence of relative humidity on the electrical response of PEDOT:PSS based organic field-effect transistor |
| title_full_unstemmed | Influence of relative humidity on the electrical response of PEDOT:PSS based organic field-effect transistor |
| title_short | Influence of relative humidity on the electrical response of PEDOT:PSS based organic field-effect transistor |
| title_sort | influence of relative humidity on the electrical response of pedot pss based organic field effect transistor |
| topic | Q Science (General) QC Physics |
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