Date of Award

8-2015

Degree Name

Master of Science

Department

Chemical and Paper Engineering

First Advisor

Dr. Margaret Joyce

Second Advisor

Dr. Dan Fleming

Third Advisor

Dr. Thomas Joyc

Access Setting

Masters Thesis-Open Access

Abstract

As the demand for global energy increases, the need for development of alternative clean and sustainable energy technology increases. Creating advanced energy devices with a large storage capacity plays a significant role in this development. This research focused on investigating the performance of capacitor devices used as energy storage cells by optimizing and determining the impact of silver percentage and structure (nano-wires or silver flake) added to CNT ink on the conductivity of printed layers, and studying the influence of calendering the multi-layer capacitor electrodes. Multi-layer capacitors were fabricated by screen printing three alternative layers of conductive and dielectric inks on top of each other onto a polyethylene terephthalate (PET) substrate. Also, a graphite ink was fabricated and the effect of adding silver flake to this ink was studied. The optimum silver percentage in the CNT ink was found to be 3 wt.% nanowires. Results also showed that calendering did not improve the conductivity of the CNT printed sheets.

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