What is it about?
The purpose of this work was to obtain an understanding of ionic shot noise phenomenon observed during the discharge measurements of our asymmetrical device that consisted of stainless steel-Ag/PBO yarns and its relation with PEDOT:PSS film formation. The poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) polymer coverage on the cell surface which was functioned as a solid electrolyte in this system was believed to play an important role. The noisy discharge profiles were observed from device with thin polymer layers, while those with thick layers exhibited normal discharge profiles. The morphology of cell surfaces was characterized by a stereo microscope. Cross section analysis of a device with a thick layer was employed to further characterize its film formation and elemental properties using Scanning Electron Microscopy-Electron Dispersive Spectroscopy (SEM-EDS). A qualitative model of autocorrelation function executed to the data with noisy behavior further confirmed the ionic shot noise phenomenon.
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Why is it important?
The information obtained from this research is important to construct an idea of how charges are transported within the bulk of PEDOT:PSS film in our device and improve the performance of the cell. This leads to an improved way of fabrication of the device as well.
Perspectives
I hope this article can open a wider multidisciplinary area of the development of smart textiles, as it combines materials, textile, and electrical engineering at once.
Prof Ida Nuramdhani
Polytechnic of STTT Bandung
Read the Original
This page is a summary of: Ionic shot noise in an electrochemical capacitor system made of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) film and silver-coated polybenzoxazole-stainless steel electrodes on textile fabrics, Textile Research Journal, April 2018, SAGE Publications,
DOI: 10.1177/0040517518767155.
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