E-Thesis 369 views 106 downloads
Novel Thin Film Technologies for Rapid Manufacture of Glassy Carbon and its Application in Printed Electronics and Energy Storage / BRENT BOODE
Swansea University Author: BRENT BOODE
DOI (Published version): 10.23889/SUthesis.63242
Abstract
This doctoral thesis is a research study into the thin film manufacture and applications ofglassy carbon. The aim of this research was to explore photonic curing as a novel rapidmanufacturing method to produce glassy carbon thin films and to expand the applicationsof glassy carbon in energy storage...
| Published: |
Swansea, Wales, UK
2023
|
|---|---|
| Institution: | Swansea University |
| Degree level: | Doctoral |
| Degree name: | Ph.D |
| Supervisor: | Deganello, Davide. and Phillips, Christopher. |
| URI: | https://cronfa.swan.ac.uk/Record/cronfa63242 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Abstract: |
This doctoral thesis is a research study into the thin film manufacture and applications ofglassy carbon. The aim of this research was to explore photonic curing as a novel rapidmanufacturing method to produce glassy carbon thin films and to expand the applicationsof glassy carbon in energy storage and printed electronics.Photonic curing was explored as a rapid method for producing glassy carbon coatings, reducing processing time from ~20 hours for conventional thermal processing down to ~1 minute. For both photonic and conventional thermal produced coatings, Raman spectroscopy and primary peak XPS data showed sp2 bonded carbon, indicative of bulk glassy carbon. XPS analysis indicated greater sp3 content at the immediate surface (5-10 nm) for photonic cured carbon compared with thermally cured carbon, likely due to the local environment (temperature, atmosphere) around the surface during conversion. The produced coatings were resilient, highly smooth, with no evidence of surface defects.The ability to rapidly manufacture glassy carbon coatings, by way of photonic curing, expands the potential window of applications of glassy carbons for high volume applications such as coatings for energy storage, rapid manufacture of complex electrically conductive shapes, and the opportunity to use temperature sensitive substrates.Photonic cured and thermal carbonized glassy carbon thin films were explored as electrode active materials. The glassy carbon thin films from both manufacturing methods showed comparable specific capacitances to one another and to the use of porous glassy carbon as a supercapacitor active electrode material in literature.Screen printed glassy carbon structures were made to explore potential applications for glassy carbon in printed electronics and sensors. These prints yielded electrical conductivities comparable to carbon based conductive inks, potentially expanding the applications window for glassy carbon for electronics devices with high chemical resistance, low reactivity and high thermal stability. Screen printed glassy carbon temperature and salinity sensors were produced and tested, glassy carbon as a temperature sensor yielded promising results whereas glassy carbon as a salinity sensor did not have a significant response with the investigated parameters. |
|---|---|
| Keywords: |
Nanotechnology, energy storage, printing and coating, carbon |
| College: |
Faculty of Science and Engineering |