| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 가을 (10/07 ~ 10/08, 대구 EXCO) |
| 권호 |
35권 2호 |
| 발표분야 |
대학원생 구두발표 |
| 제목 |
An Aromatic Imine Group Enhances the EL Efficiency and Carrier Transport Properties of Highly Efficient Blue Emitter for OLEDs |
| 초록 |
This study describes not only the synthesis and characterization of a novel indenofluorene derivative, TP-EIF, for use as an emitting material in blue organic light emitting diodes (OLEDs), but also the comparison with TP-EPY in which a carbon atom was replaced by an imine N, and the effects of the structural changes on the OLED properties were examined. The electroluminescence (EL) performance of TP-EPY in OLED devices was higher than that of TP-EIF: the luminance efficiencies were 1.72 and 0.76 cd/A, and the power efficiencies were 0.65 and 0.27 lm/W, for TP-EPY and TP-EIF, respectively. In particular, the FWHMs of the EL spectral bands were 54 nm for TP-EPY and 73 nm for TP-EIF, which demonstrated enhanced emission spectral purity. The external quantum efficiency of TP-EPY was 5.1%, which was more than twice the value for TP-EIF (2.19%). |
| 저자 |
박영일1, 이지훈2, 정동현3, Chung-Chih Wu4, 박종욱1
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| 소속 |
1가톨릭대, 2충주대, 3인실리코텍, 4National Taiwan Univ. |
| 키워드 |
Indenopyrazine; Indenofluorene; OLED; Blue Material; Imine Group Effect
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| E-Mail |
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