Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 4, Issue 2, Pages 982-989Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am201622j
Keywords
multiwalled carbon nanotube; CNT:PEDOT composite; oxidized CNT; organic thin film transistor; work function; hole injection barrier
Funding
- Korea Science and Engineering Foundation (KOSEF)
- Pohang Accelerator Laboratory
Ask authors/readers for more resources
Composite films of multiwall carbon nanotube (MWNT)/poly(3,4-ethylenedioxythiophene) polymerized with poly(4-styrenesulfonate) (PEDOT:PSS) were prepared by spin-coating a mixture solution. The effect of the MWNT loading and the MWNT oxidation, with acid solution or ultraviolet (UV)-ozone treatment, on the film properties such as roughness, work function, surface energy, optical transparency and conductivity were studied. Also pentacene thin film transistors and inverters were made with these composite: films as a contact metal and the device characteristics were measured The oxidation of MWNT. reduced the conductivity of MWNT/PEDOT:PSS composite film but increased the work function and transparency.. UV ozone treated MWNT/PEDOT:PSS composite film showed higher conductivity (14000 Omega/square) and work function (4.9 eV) than acid oxidized MWNT/PEDOT:PSS composite film and showed better performance as a source/drain electrode in organic thin film transistor, (OTFT) than other types of MWNT/PEDOT:PSS composite films. Hole injection barrier of the UV-ozone treated MWNT/PEDOT:PSS composite film with pentacene was significantly lower than any other films because of the higher work function.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available