
Ecem Erman is defending her thesis for the degree philosophiae doctor (PhD) at the University of South-Eastern Norway.
She has pursued the PhD program in Technology at the Faculty of Technology, Natural Sciences, and Maritime Sciences, Department of Microsystems.
You are invited to follow the trial lecture and the public defence.
- Link to the thesis will come here
Abstract
Ecem Erman’s doctoral research shows how supercapacitors can be designed for faster power delivery or greater charge storage per unit area. She grew one-dimensional carbon nanomaterials on porous aluminium and adjusted their structure via tunning the processing conditions.
Supercapacitors store electrical energy and can supply short bursts of power. The aluminium in these electrodes acts as a support and an electrical conductor. Carbon grows on its surface and inside its pores. This forms the electrode without a separate step to mix carbon powder with a binder and coat it onto the metal substrate.
Across three studies, Erman developed electrodes for different operating needs. Open carbon structures enable an extremely fast charging/discharging rate relevant to smoothing voltage fluctuations in power supplies. More densely packed carbon increased charge storage per unit area. The carbon growth time also controlled the response speed within one same electrode design.
The findings provide a basis for selecting electrode processing conditions according to the intended use. Potential uses include power supplies and electronics that need short bursts of power. The next step is to test these electrodes in working circuits.