| 초록 |
The SWNTs coatings on substrates have been investigated as TCFs to alternate indium tin oxide (ITO) films. One of important factors that makes TCF more conductive is the dispersion of SWNTs. However, SWNTs exist as a bundle due to a strong intertube van der Waals attraction. In order to obtain well dispersed SWNTs, efficient dispersants are firstly required. Here, poly(PDMAEMA-co-PS) was synthesized and used as a polymeric dispersant for SWNTs in organic solvent. PDMAEMA-co-PS with different copolymer compositions was prepared by ATRP. With PDMAEMA-co-PS, SWNTs were effectively dispersed through non-covalent functionalization by ultrasonication in THF. SWNTs coatings on PET and glass, were prepared via spin-coating method. Moreover, thermal treatment was carried out as a post-treatment to decrease the sheet resistance without the change of transparency. Transmittance and sheet resistance of SWNTs/ PDMAEMA-co-PS films were obtained by UV-vis and 4-point probe measurement, respectively. |
