Electrical Characterization of Thin PEDOT:PSS Films on Alumina and Thiol-Ene Substrates
POLYMERS(2021)
Abstract
Transparent polymer layers that heal minor scratches and maintain the optical properties of the devices for a long time are highly desirable in optoelectronics. This paper presents the results of the electrical characterization of thin PEDOT:PSS films on the novel, optically transparent thiol-ene substrates capable of healing scratches under room-temperature conditions. Electrical properties of the PEDOT:PSS films deposited on the conventional alumina ceramic substrates were also tested for comparative purposes. This study demonstrated that the substrate can have a significant effect on the electrical properties of PEDOT:PSS films, and the electrical resistance of the films on thiol-ene substrates is not as stable as on alumina ceramics. However, the changes in electrical resistance of the films on thiol-ene are small enough over a sufficiently wide range of operating temperatures and relative humidities and allow the application of such bilayers in various polymeric optoelectronic devices.
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Key words
<p>PEDOT:PSS & nbsp,</p>, thiol-ene, alumina ceramics, transparent, electrical resistance, I-V curves, stability, gauge factor, temperature, relative humidity
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