| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 봄 (04/07 ~ 04/09, 대전컨벤션센터) |
| 권호 |
46권 1호 |
| 발표분야 |
분자전자 부문위원회 Ⅰ |
| 제목 |
Selenophene substitution effect on naphthalene-diimide-vinylene-based small molecules for n-type organic field-effect transistors |
| 초록 |
Two naphthalene diimide (NDI)-based small molecules with the donors of thiophene-vinylene-thiophene (TVT) or selenophene-vinylene-selenophene (SVS) were newly synthesized for semiconductors of n-type organic field-effect transistors (OFETs). The results of density functional theory showed the monomeric molecular structure of N-SVS-N is tilted twice as much as that of N-TVT-N. which means that N-SVS-N has lower backbone planarity. However, the thin films of N-SVS-N showed unexpectedly more uniform surface morphology and predominantly edge-on packed structure in comparison with those of N-TVT-N. As the result, the optimally annealed OFETs with N-SVS-N exhibited electron mobilities of up to 0.016 cm2 V-1 s-1, while OFETs with N-TVT-N showed a lower electron mobilities of up to 6.6 × 10-3 cm2 V-1 s-1. These results could be explained by the structural advantages of N-SVS-N that facilitate interactions between the electron-rich selenophenes. |
| 저자 |
오종규1, 하연희2, 김지현2, 권순기2, 안태규3, 김윤희2, 장재영1
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| 소속 |
1한양대, 2경상대, 3한국교통대 |
| 키워드 |
organic field-effect transistors; small molecules; naphthalene diimide; selenophene; linker
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| E-Mail |
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