| 초록 |
Electrical performances of organic field-effect transistors (OFETs) are significantly influenced by surface energy-controllable organic interlayers on gate dielectrics. To date, the studies related to surface energy controls of the dielectrics have been conducted to establish the relationship between the surface energy and OFET device performance. The surface energy, however, is expressed as the sum of the polar and dispersion (nonpolar) energy terms, and the phenomena related to the actual surface energies are different depending on the magnitude of the two energy terms. Herein, a group of self-assembled monolayers (octadecyltrichlorosilane and hexamethyldisilazane) and polymer brushes (hydroxyl-terminated polystyrene and poly(methyl methacrylate)) were introduced onto SiO2 surface for tuning dielectric surface energies with various ratios of polarity and dispersivity, which are used to explore the impacts of various surface energy parameters on the OFET performances |
