| 초록 |
In this study, a series of asymmetric anthracene derivatives (NDHPEA, TNDHPEA, ADHPEA) was synthesized by Suzuki cross-coupling reaction for organic thin film transistors (OTFTs). The structures of synthesized oligomers were confirmed by FT-IR, 1H-NMR, 13C-NMR and mass spectroscopy. They were found to be soluble in common organic solvents such as chloroform, dichloromethane and toluene. These oligomers have been characterized by UV-visible, photoluminescence (PL), cyclic voltammetry (CV), differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA) and X-Ray diffraction (XRD) spectroscopy. Also, these oligomers have a high thermal stability at around 455 oC (Td). The solution processed OTFTs (Top-contact) were fabricated using synthesized oligomers spin-coated on Si/SiO2 . The fabricated devices showed the field-effect mobility of 9.1 × 10-5 cm2/Vs for NDHPEA, 1.2 × 10 -2 cm2/Vs for TNDHPEA and 1.8 × 10-5 cm2/Vs for ADHPEA. |
