Optical-Electronic Properties of Carbon-Nanotubes Based Transparent Conducting Films

Kuan-Ru Chen, Hsiu-Feng Yeh, Hung-Chih Chen, Ta-Jo Liu, Shu-Jiuan Huang, Ping-Yao Wu, Carlos Tiu
2013 Advances in Chemical Engineering and Science  
Three coating methods (slot, dip and blade coatings) were used separately to coat a well-dispersed single-wall carbonnanotube (SWCNT) solution on polyethylene terephthalate (PET) film, and the resulting optical and electronic properties were measured and compared. It was found that the sheet resistance and the transparency of the SWCNT coated film decreased as the coating speed increased for dip and blade coatings, but were independent of the coating speed for slot coating. All three coating
more » ... ll three coating methods were able to produce transparent conductive film with transparency above 85% and sheet resistance close to 1000 ohm/sq. For industrial production, the slot die coating method appears to be more suitable in terms of high coating speed and uniformity of optical and electronic properties. Figure 11. SEM images of samples made by the three coating methods. (a) Slot die V = 7 cm/s; (b) Slot die V = 11 cm/s; (c) Blade coating V = 2 cm/s; (d) Blade coating V = 6 cm/s; (e) Dip coating V = 0.7 cm/s; (f) Dip coating V = 2 cm/s. for industrial applications. The present analysis focuses only on the sheet resistance and transparency of the coated CNT films. No binders, adhesives on other materials were added to the CNT solutions.
doi:10.4236/aces.2013.31013 fatcat:l57lauic5bgz5i5cwuko3oij6i