| 초록 |
To understand the inkjet printing behavior of polymer/TIPS pentacene blends, we synthesized triarylamine-based polymers with various polarities, which were obtained by changing the fluorine content in the polymer structure. The variation of segregation strength of the polymer domains in the blends can be induced depending on the different polarities of the polymers, which can ultimately determine the shape and orientation of the TIPS pentacene crystals in OTFT films. This relationship was explained by the Flory-Huggins phase separation theory according to the measured TFT performance. Polarized optical microscopy, 3D surface profile, and X-ray diffraction (XRD) were used to investigate the crystal orientation, surface morphology, and crystallinity of the polymer/TIPS pentacene thin films. |
