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Utility of PCDTBT polymer for the superior sensing parameters of electrical response based relative humidity sensor

In the present study, organic polymer PCDTBT has been deposited on pair of planar aluminium (Al) electrodes to construct an integrated capacitive and impedance type humidity sensor (Al/PCDTBT/Al). The solution processable organic polymer has been deposited through a facile spin coating technique. Th...

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Main Authors: Zafar, Q., Sulaiman, K.
Format: Article
Published: Elsevier 2016
Subjects:
Q Science (General)
QC Physics
Online Access:http://eprints.um.edu.my/18726/
http://dx.doi.org/10.1016/j.reactfunctpolym.2016.05.014
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spelling my.um.eprints.187262018-05-18T04:14:51Z http://eprints.um.edu.my/18726/ Utility of PCDTBT polymer for the superior sensing parameters of electrical response based relative humidity sensor Zafar, Q. Sulaiman, K. Q Science (General) QC Physics In the present study, organic polymer PCDTBT has been deposited on pair of planar aluminium (Al) electrodes to construct an integrated capacitive and impedance type humidity sensor (Al/PCDTBT/Al). The solution processable organic polymer has been deposited through a facile spin coating technique. The structural characterization and surface morphology study of active layer has been performed by XRD and AFM. The humidity sensing characteristics of the sensor have been investigated by exposing the organic active layer to various wide range relative humidity (%RH) levels (15-98%RH) at room temperature. The proposed sensor exhibits significantly higher sensitivity ~ 39.73 pF/%RH and 821.81 kΩ/%RH when operated in capacitive and impedance mode, respectively. In addition, the capacitive sensor has desirable reproducibility, narrow hysteresis (~ 5%), fast response (8 s) and reset (14 s) time. Significantly improved sensing parameters suggest that the proposed sensor may be implemented meritoriously for continuous humidity assessment in environment. Elsevier 2016 Article PeerReviewed Zafar, Q. and Sulaiman, K. (2016) Utility of PCDTBT polymer for the superior sensing parameters of electrical response based relative humidity sensor. Reactive and Functional Polymers, 105. pp. 45-51. ISSN 1381-5148 http://dx.doi.org/10.1016/j.reactfunctpolym.2016.05.014 doi:10.1016/j.reactfunctpolym.2016.05.014
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
QC Physics
spellingShingle Q Science (General)
QC Physics
Zafar, Q.
Sulaiman, K.
Utility of PCDTBT polymer for the superior sensing parameters of electrical response based relative humidity sensor
description In the present study, organic polymer PCDTBT has been deposited on pair of planar aluminium (Al) electrodes to construct an integrated capacitive and impedance type humidity sensor (Al/PCDTBT/Al). The solution processable organic polymer has been deposited through a facile spin coating technique. The structural characterization and surface morphology study of active layer has been performed by XRD and AFM. The humidity sensing characteristics of the sensor have been investigated by exposing the organic active layer to various wide range relative humidity (%RH) levels (15-98%RH) at room temperature. The proposed sensor exhibits significantly higher sensitivity ~ 39.73 pF/%RH and 821.81 kΩ/%RH when operated in capacitive and impedance mode, respectively. In addition, the capacitive sensor has desirable reproducibility, narrow hysteresis (~ 5%), fast response (8 s) and reset (14 s) time. Significantly improved sensing parameters suggest that the proposed sensor may be implemented meritoriously for continuous humidity assessment in environment.
format Article
author Zafar, Q.
Sulaiman, K.
author_facet Zafar, Q.
Sulaiman, K.
author_sort Zafar, Q.
title Utility of PCDTBT polymer for the superior sensing parameters of electrical response based relative humidity sensor
title_short Utility of PCDTBT polymer for the superior sensing parameters of electrical response based relative humidity sensor
title_full Utility of PCDTBT polymer for the superior sensing parameters of electrical response based relative humidity sensor
title_fullStr Utility of PCDTBT polymer for the superior sensing parameters of electrical response based relative humidity sensor
title_full_unstemmed Utility of PCDTBT polymer for the superior sensing parameters of electrical response based relative humidity sensor
title_sort utility of pcdtbt polymer for the superior sensing parameters of electrical response based relative humidity sensor
publisher Elsevier
publishDate 2016
url http://eprints.um.edu.my/18726/
http://dx.doi.org/10.1016/j.reactfunctpolym.2016.05.014
_version_ 1643690777812926464
score 13.211869

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