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| Type |
Poster Presentation |
| Area |
재료화학 |
| Room No. |
포스터발표장 |
| Time |
4월 21일 (금요일) 13:00~14:30 |
| Code |
MAT.P-370 |
| Subject |
Synthesis and Characterization of Isomer-Free Quinoidal Small Molecules via Introducing Short Side Chains |
| Authors |
김윤슬, 김동유1,*
GIST 신소재공학부, Korea
1GIST 신소재공학과,나노바이오재료전자공학과, Korea
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| Abstract |
Conjugated molecules based on quinoidal unit have been extensively studied as organic semiconductors for application in OFETs due to its high structural planarity and electron rich characteristics. Their planar structures induce favorable delocalization π-electrons along the conjugated molecules and short π-π stacking distance. Therefore, some of them manifested very promising charge transport characteristics. Recently, quinoidal conjugated molecules containing the isatin terminal unit have been reported because of easy and facile synthesis for forming the quinoidal structure and possibility of introduction into the conjugated polymer backbone. However, isatin terminated quinoidal molecules have the possibility to exist geometrical isomers owing to be connected to double bond between aromatic ring. Thereby, these quinoidal molecules have suffered from purification of unavoidably produced isomers as well as understanding the exact molecular packing model. To obtain the isomer-free isatin terminated quinoidal molecules, we utilized steric effect by incorporating short alkyl and alkoxy side chain into the quinoidal core unit. In this research, we report two quinoidal small molecules, quinoidal methoxy bithiophene (QuMeOBT) and quinoidal ethyl bithiophene (QuC2BT). Furthermore, their thermal, optical, electrical properties, and charge transport behaviors are characterized and discussed. |
| E-mail |
yunseul@gist.ac.kr |
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119th General Meeting of the KCS