| 학회 | 한국공업화학회 |
| 학술대회 | 2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 | 26권 1호 |
| 발표분야 | 포스터-나노 |
| 제목 | Effects of Side-Chain Engineering on the ChargeTransport of n-Type Organic Field Effect Transistors |
| 초록 | Here, wesynthesized three dicyanovinyl-end-capped diketopyrrolopyrrole-based n-typesmall molecules (C2C9CN, SiC4CN and EH4PCN) with an identical length butdifferently end-functionalized alkyl spacer side chains (i.e., alkyl-,siloxane-, and phosphonate-end pendants). Siloxane-end side chains shows 2Dedge-on oriented high intergrain connectivity/crystallinity and compatibilitywith the substrate surface, whereas the phosphonate-end analogues have anadverse effect on the film-forming quality due to high polarity. Thereby, anorganic field-effect transistor fabricated by SiC4CN shows the best electronmobility up to 1.59 × 10–1 cm2 V–1 s–1 alongwith a high current on/off ratio (>105). This study contributesto our understanding of the role of the end-functionalized side chains (e.g.,the effects of polarity and bulkiness of the end groups) for the development ofhigh-performance semiconductors. |
| 저자 | 강소희1, 이도영2, 최원빈2, 오준학2, 양창덕1 |
| 소속 | 1UNIST, 2서울대 |
| 키워드 | n-type; organic; field effect transistor; side-chain engineering; Diketopyrrolopyrrole |
