| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
End-group Alkylation of Diarylethene to Enhance Photo-switchability of Polymer Transistors |
| 초록 |
A molecular and synthetic approach to strengthen the switching performance of diarylethene (DAE)-based organic transistors is proposed. By tuning the length of alkyl side chains of biphenyl unit attached to DAE, we show that molecular environment for reversible photoisomerization of DAEs can be optimized. Longer alkyl chains inhibit intermolecular aggregation between DAEs and allow more hydrophobic surface properties of DAEs, thus improving molecular miscibility with ITIC. The improved molecular compatibility of DAEs with ITIC makes the overall bulk heterojunction film amorphous, allowing more free volume for reversible photoisomerization. This work shows that not only the energy level but also the molecular compatibility can endow significant switching performances for molecular switches. |
| 저자 |
유성훈, Syed Zahid Hassan, 소찬, 문도현, 정대성
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| 소속 |
포항공과대 |
| 키워드 |
Molecular switch; diarylethenes; miscibility; photo switch; transistors
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| E-Mail |
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