التفاصيل البيبلوغرافية
| العنوان: |
Influence of Solvent-Dependent Morphology on Molecular Doping and Charge Transport in Conductive Thiophene Polymer. |
| المؤلفون: |
Chai, Haoyu, Li, Hui, Zhong, Fei, Xu, Zhen, Bai, Shengqiang, Chen, Lidong |
| المصدر: |
Materials (1996-1944); May2022, Vol. 15 Issue 9, p3293-3293, 9p |
| مصطلحات موضوعية: |
CONDUCTING polymers, DOPING agents (Chemistry), THIOPHENES, ELECTRIC conductivity, CHARGE carrier mobility, MOLECULAR orientation, POLYMERS |
| مستخلص: |
The utility of a solvent is one of the key factors that impacts resultant film morphology. However, the effect of solvent-dependent morphology on the doping process and electrical conductivity has not been adequately elucidated. In this work, we compared the morphology of chloroform- and chlorobenzene-processed thiophene polymer films and investigated how the choice of solvent influences film morphology, doping level, charge transport properties, and thus electrical conductivity. It was found that the film drop-casted from chloroform exhibits better crystallinity than that drop-casted from chlorobenzene. The crystallinity has negligible impact on the doping level but significant impact on charge transport properties. As a result, the chloroform-processed film shows a higher electrical conductivity of up to 408 S cm−1 due to a high carrier mobility related to the continuously crystalline domains in film. This finding indicates that the choice of solvent for preparation of film, which strongly correlated with molecular orientation, is a new strategy to optimize the electrical conductivity of doped polymers. [ABSTRACT FROM AUTHOR] |
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