| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 가을 (10/09 ~ 10/10, 일산킨텍스) |
| 권호 |
33권 2호 |
| 발표분야 |
분자전자소재 및 소자기술의 현황(분자전자 부문위원회) |
| 제목 |
A New Green-Emitting Phenothiazine Derivative and Its Electroluminescence Characteristics |
| 초록 |
Recently, various π-conjugated donor-acceptor molecules which can trap both charge carriers and generate excitons have been widely studied. In this work, we report the synthesis and characterization of a novel organic fluorophore, 3,7-(benzimidazol-2-yl)-10-methylphenothiazine (BBMP) containing the electron-donating phenothiazine core and the electron-accepting benzimidazole substituent. BBMP has a high fluorescence quantum yield (Фf = 0.91) in solution state and a large Stokes shift (approximately ~120 nm) between absorption and emission, preventing the self-absorption of the emitted light in the EL device. The non-doped devices with a standard configuration of [ITO/α-NPB (40 nm)/ BBMP (30 nm)/ TPBI (30 nm)/Alq3 (10 nm)/LiF (1 nm)/Al (120 nm)] showed a luminous efficiency of 8.7 cd/A and an external quantum efficiency of 2.1 % with the CIE 1931 chromaticity coordinates of (0.21, 0.52) at 100 mA/cm2. |
| 저자 |
안용환1, 유근채2, 이한일1, 안광현1, 김영철1
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| 소속 |
1경희대, 2LG 디스플레이 |
| 키워드 |
OLED; Donor-accepter molecule; benzimidazole; phenothiazine
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| E-Mail |
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