| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
OLED 소재 및 소자기술 동향(분자전자 부문위원회) |
| 제목 |
Synthesis of spiro-benzofluorene based pyridine derivatives as red phosphorescent host and electron transport materials |
| 초록 |
We have designed and synthesized new red phosphorescent host and electron transport materials based on the pyridine and spiro-benzofluorene moiety. 3-(spiro[benzo[c]fluorene-7,9'-fluorene]-2'-yl)pyridine (SPP) and 2',7'-di(pyridin-3-yl)spiro[benzo[c]fluorene-7,9'-fluorene] (SPBP) were synthesized and they were used as the host materials in red phosphorescent devices doped with iridium(III) bis(2-phenylquinoline)acetylacetonate (Ir(pq)2acac). SPP and SPBP devices doped with 2% Ir(pq)2acac showed high quantum efficiency of 13.3% and 12.3% respectively. In addition, these materials were compared with Alq3 as electron transport materials for red phosphorescent organic light-emitting diodes. The SPBP exhibited much higher quantum efficiency than Alq3 as an electron transport material due to efficient electron transport an hole blocking. |
| 저자 |
손효석, 전순옥, 장상억, 조용주, 육경수, 주철웅, 이준엽
|
| 소속 |
단국대 |
| 키워드 |
phosphorescent; pyridine
|
| E-Mail |
|
