| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
38권 2호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Solvent additive to achieve highly-ordered nanostructural semicrystalline DPP copolymers: toward a high charge carrier mobility |
| 초록 |
Chloroform is a general solvent with a low surface tension and is used to solvate diketopyrrolopyrrole (DPP)-based copolymer active layers during the preparation of organic field-effect transistors. Solvents with low boiling points evaporate over short periods of time that are insufficient to facilitate self-organization and chain alignment of during the growth of a highly crystalline film. The present study describes a strategy for slowing down the evaporation rate and increasing the time available for polymer chain alignment. 1-chloronaphthalene (CN) was added to a chloroform solution. PDPPDBTE transistors prepared from this solution offered a high carrier mobility of 0.46 cm2/Vs on an octadecyltrichlorosilane-treated ZrOx dielectric layer. The molecular ordering improved and efficient interchain stacking was induced within the thin films using a solvent additive. We also found that the effects of the CN additive depended on the crystalline characteristics of the polymers. |
| 저자 |
안태규1, 박찬언1, 강일2, 김윤희2, 권순기2, 차효정1, 황지헌1, 박선욱1, 김지예1, 김유진1, 정대성3
|
| 소속 |
1포항공과대, 2경상대, 3중앙대 |
| 키워드 |
additive effect; organic field-effect transistors; spin-coating; evaporation rate; high boiling point
|
| E-Mail |
|
