| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 가을 (10/11 ~ 10/12, 일산킨텍스) |
| 권호 |
32권 2호 |
| 발표분야 |
분자전자 소재 및 소자 기술(분자전자 부문위원회) |
| 제목 |
Synthesis and Photophysical Properties of Near-Infrared Emitting Ln(III) Complexes Based on Diketone Ligands |
| 초록 |
We have developed lanthanide(III) (Ln(III) or Ln3+)-cored complexes based on 1,3-di-naphthalen-2-yl-propane-1,3-dione (DNPD) and 1-naphthalen-2-yl-3-triphenylen-2-yl-propane-1,3-dione (NTPD) for near IR emission to investigate the energy transfer pathway from the antenna ligand to the Ln3+ ion. The highly-coordinated complexation of the Ln3+ ion with NTPD or DNPD as well as one terpyridine (terpy) was formed. Ln3+ ions were effectively encapsulated by a ß-diketone derivatives and terpyridine. This result was also proved by measuring the phosphorescence decay profiles of Ln3+-[NTPD]3(terpy) and Ln3+-[DNPD]3(terpy) with an excitation at 355 nm. Our photophysical studies indicate that the energy transfer in Er3+-[NTPD]3(terpy) and Er3+-[DNPD]3(terpy) takes place through the triplet state and the energy transfer rate between them has the larger order of magnitude than the oxygen quenching rate (ket＞107 s-1). |
| 저자 |
곽봉규, 김용희, 백남섭, 김환규
|
| 소속 |
고려대 |
| 키워드 |
Ln(III) Complexes; diketonate ligand
|
| E-Mail |
|
