Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2251
Title: Electrical characterization of PEDOT: PSS beyond humidity saturation
Authors: Kuş, Mahmut
Okur, Salih
Keywords: Conducting polymer
Humidity sensors
PEDOT:PSS
Resistivity
Atmospheric humidity
Issue Date: Dec-2009
Publisher: Elsevier Ltd.
Source: Kuş, M. and Okur, S. (2009). Electrical characterization of PEDOT:PSS beyond humidity saturation. Sensors and Actuators, B: Chemical, 143(1), 177-181. doi:10.1016/j.snb.2009.08.055
Abstract: PEDOT:PSS humidity sensor was fabricated using a drop-casting method between thermally evaporated gold electrodes with 30 μm separation and 300 μm channel width on a glass substrate. AC, DC resistivity, and AFM techniques were used to characterize the PEDOT:PSS humidity sensor in the same environmental conditions. The change of resistivity was monitored with increasing relative humidity (RH) up to 90%. The resistivity increases linearly up to a maximum value, and then it starts to decrease abruptly above 80% relative humidity (RH) after saturation of water uptake. The decrease in resistivity above 80% RH seems to be due to the water meniscus layer formed on the saturated PEDOT:PSS film. Below 80% RH, the device works like a humidity sensor.
URI: http://dx.doi.org/10.1016/j.snb.2009.08.055
http://hdl.handle.net/11147/2251
ISSN: 0925-4005
0925-4005
Appears in Collections:Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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