| 초록 |
Surface control of gate insulators is a key to performance improvement of organic thin-film transistors (OTFTs). In other to obtain polymer gate insulators with well-controlled surface properties, a copolymerization method was used. We have synthesized of surface energy controlled polyimides through one-step condensation polymerization. The polyimides were synthesized from 5-(2,5-dioxotetrahydrofuryl)-3-methyl-3-cyclohexene-1,2-dicarboxylic anhydride [DOCDA], 4,4'-diaminodiphenylmethane [MDA], and 1-(3,5-diaminophenyl)-3-(1-octadecyl)-succinicimide) [DA-18IM]. The functional diamine, DA-18IM was used to control the surface energy of gate insulators. The surface energy of gate insulators varies according to the DA-18IM ratio. We have investigated a relationship of the surface property of the copolymer gate insulators with OTFT characteristics. |
