| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 가을 (10/11 ~ 10/12, 일산킨텍스) |
| 권호 |
32권 2호 |
| 발표분야 |
분자전자 소재 및 소자 기술(분자전자 부문위원회) |
| 제목 |
Enhanced Emission and Two-Photon Absorption Cross-Section by Nanoaggregation of Cyano Substituted Stilbene Derivative |
| 초록 |
Currently, organic molecules with large two-photon absorption (TPA) are of considerable interest because of their potential applications for electronics and photonics. This study reports the synthesis and the investigation of optical behaviors of a stilbene derivative, (Z)-2,3-bis[4-(N-4-(diphenylamino)styryl)phenyl]acrylonitrile (StCN). A TPA dye, StCN was obtained by the Heck reaction. Nanoaggregates of StCN in 50 % water volume fraction have exhibited the increased fluorescence intensity and a blue shift in emission maximum wavelength. This enhancement can be attributed to the formation of J-type aggregates. A strong bathochromic solvatochromism in the emission spectrum is indicative of a large dipole moment of StCN. Also, TPA cross-section of nanoaggregates has been obtained an enhancement of 1.5 times compared to that in DMF solution at the maximum wavelength. |
| 저자 |
박진순1, 김란희1, 조남성2, 심홍구2, 이광섭1
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| 소속 |
1한남대, 2카이스트 |
| 키워드 |
Two-Photon Absorption Cross-Section; Nanoaggregation; Cyano Substituted Stilbene Derivative
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| E-Mail |
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