| 초록 |
Block copolymer is innate for the purpose of dispersing nanomaterial in that it has distinct blocks which act as selective solvation to solution and nanomaterial, respectively. While Single wall carbon nanotubes (SWNTs) have electrical superior conductivity, the efforts to apply them to conductive film have been retarded by some problems. The van der Waals force among SWNTs leads to aggregation and comprises a major obstacle for manipulation of thin film. In our system, block copolymer micelles are decorated on the side wall of SWNTs by physical adsorption in solution, producing well-dispersed solution. The polymer added for the purpose of dispersion of SWNTs, however, reduces the conductivity of the thin SWNT/polymer film, in which polymer embedded between SWNTs hampers the intertube hopping of charge carriers. We could incorporate salt which act as hole doping agent, resulting in enhancement of conductivity of polymer/CNT film. |
