| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 |
21권 1호 |
| 발표분야 |
디스플레이 |
| 제목 |
Studies on Competitive Pathways For Influence of π-Conjugation: Charge Transfer or Exited Transfer in D–π–A and D–π–Si–π–A Dyads |
| 초록 |
In order to explain the influence of π-conjugation on photoinduced electron transfer (PET) and intramolecular charge transfer processes, donor–π–acceptor dyads (D–π–A (1) and D–π–Si–π–A (2)) were newly synthesized. In these dyads, carbazole and triazine moieties acted as the electron donor and acceptor. The electron charge distribution of the excited state of dyad 1 was delocalized in the acceptor moiety, forming the charge transfer Dδ+–π–Aδ- dyad in the excited state. In the excited state of dyad 1, the π-conjugation acted as the linker for charge transfer between the donor and acceptor moieties. A large dipole moment change (Δμ = 45.6 D) between the ground and excited states was determined using the Lippert–Mataga plot. The cationic radical species of the carbazole and the anionic radical species of the triazine, which show transient absorption (TA) bands at around 780 and 530 nm, respectively, were characterized using the femtosecond TA method. |
| 저자 |
김태현, 김종훈, 윤보선, 손미랑, 강상욱, 손호진
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| 소속 |
고려대 |
| 키워드 |
CT; ET
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| E-Mail |
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