Post-deposition dipping method for improving the electronic properties of a narrow bandgap conjugated polymer

Abstract

By dipping into hexane, it is possible to efficiently eliminate the low MW component and also improve the molecular ordering of a conjugated polymer thin film. These changes improve the performance of field-effect transistors. The correlation between the nanoscalar structural features and the electrical properties enables us to determine both the appropriate dipping time and how the low MW component influences electronic properties.