| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 봄 (04/10 ~ 04/11, 컨벤션 뷰로(대전)) |
| 권호 |
33권 1호 |
| 발표분야 |
유기반도체 재료 및 소자 |
| 제목 |
Synthesis, Photophysical and EL Device Properties of Zinc(II)-chelated Complexes Based on the Functionalized Benzothiazole Derivatives |
| 초록 |
We have investigated Zn(II)-chelated complexes based on benzothiazole derivatives including the substituted functional groups such as 2-ethylhexyl, dendrons, etc., which are able to produce white emitting color with a selection of organic emitting materials. The physical properties of benzothiazole derivatives show that the monomer species of 2-(2-hydroxyphenyl)benzothiazole derivatives in nonpolar solvents such as toluene exist as keto-type by the intramolecular hydrogen bonding. They have the excited state intramolecular proton transfer (ESIPT). As a result, these molecules exhibited large stoke’s shift by ESIPT. Multi-layered EL device was fabricated as ITO/2-TNNA (60 nm)/NPB (15 nm)/Zn(II)-chelated complex(30nm)/Alq3 (30 nm)/LiF(1nm)/Al. Also, novel Zn(II) complexes have the property of white-emitting materials as full color display. Methyl-substituted Zn(II)-chelated complex (MeZn) shows better power efficiency date than Zn(II)-OMe (MoZn) and Alq3 complexes. |
| 저자 |
곽봉규1, 이동현1, 서강득1, 이지훈2, 김환규1
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| 소속 |
1고려대, 2청주대 |
| 키워드 |
Zinc(II)-chelated Complexes; ESIPT; GSIPT
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| E-Mail |
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