Electrical Characteristics of Carbon Nanotubes by Plasma and Microwave Surface Treatments
- Resource Type
- Article
- Authors
- Sang-Jin Cho; Shankar Prasad Shrestha; Soon-Bo Lee; 부진효
- Source
- Bulletin of the Korean Chemical Society, 35(3), pp.905-907 Mar, 2014
- Subject
- 화학
- Language
- English
- ISSN
- 1229-5949
0253-2964
The plasma and microwave surface treatments of carbon nanotubes that loaded on plastic substrates were carried out with expecting a change of carbon nanotube dispersion by increasing treatment time. The microwave treatment process was undergone by commercial microwave oven (800 W). The electrical property was measured by hall measurement and resistance was increased by increasing O2 flow rate of plasma, suggesting an improvement of carbon nanotube dispersion and a possibility of controlling the resistances of carbon nanotubes by plasma surface treatment. The resistance was increased in both polyethylene terephthalate and polyimide substrates by increasing O2 flow rate. Resistance changes only slightly with different O2 flow treatment in measure rho for all polyimide samples. Sheet resistance is lowest in polyimide substrate not due to high carbon nanotube loading but due to tendency to remain in elongated structure. O2 or N2 plasma treatments on both polyethylene terephthalate and polyimide substrates lead to increase in sheet resistance.