Characterization of a PEDOT:PSS Electrolytic Device Using an in situ Spectroelectrochemical Technique

It appears your Web browser is not configured to display PDF files. Download adobe Acrobat or click here to download the PDF file.

Click here to download the PDF file.


Barrera Ramirez, Eduardo Alberto




PEDOT:PSS, a conjugated polymer, has demonstrated great potential in emerging applications due to its variable conductivity and spectral attenuation. However, it is necessary to understand the relationship between these properties and the doping state of PEDOT:PSS. This work uses an in situ spectroelectrochemical experiment to measure conductance and spectral attenuation of PEDOT:PSS while being dedoped quasi-statically with lithium ions. Results show a reversible decrease in conductivity during dedoping with a maximum on/off ratio of 2500. The relationship between conductivity and doping
state displays a sigmoidal shape with minimum conductivity at ~1.2mC of intercalated charge. Migration speed of lithium through PEDOT:PSS was found to have a power-law speed-time relationship, where the exponent was on average 0.715 for applied voltages of 2V-5V. This work provides important parameters to facilitate simulation of complex PEDOT:PSS polymer-electrolyte devices.


PHYSICAL SCIENCES Engineering - Electronics and Electrical




Carleton University

Thesis Degree Name: 

Master of Applied Science: 

Thesis Degree Level: 


Thesis Degree Discipline: 

Electrical and Computer Engineering

Parent Collection: 

Theses and Dissertations

Items in CURVE are protected by copyright, with all rights reserved, unless otherwise indicated. They are made available with permission from the author(s).