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Analysis for the properties of Polymer/SWCNT composite prepared by different solvents
Optical analyses for the interaction between single-walled carbon nanotubes(SWCNTs) and conjugate polymer under different solvents had been discussed in this thesis. It was shown that SWCNTs not only can be dispersed in solvent using conjugate polymer as surfactant agent, but also shows good selectivity for chirality and properties. The solvents with different polarity, density and structure will affect the solubility, selectivity and dispersion of SWCNTs/polymer system. The solubility of SWCNTs in solvents was analyzed by absorption spectra. The dispersion and selectivity of SWCNTs with different conjugate polymer were analyzed by photoluminescence. The result shows that some specific chirality of SWCNTs can be separated by certain conjugate polymer and organic solvents. In this thesis, dispersed SWCNTs in different solvents using P3HT were used for photovoltaic device measurement. In order to have better understanding about the interaction between P3HT and SWCNTs, the solvent effect on the crystallization of the P3HT and the SWCNTs/P3HT composites was discussed.
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