| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터) |
| 권호 |
40권 1호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Förster resonance energy transfer assisted polymer light emitting devices driven by alternating current (AC) |
| 초록 |
We report an extremely high brightness of solution-processed full color polymer AC EL device. Two novel strategies were employed to ensure high brightness: (1) AC driven fluorescence resonance energy transfer (FRET) was used between fluorescent polymers with different colors and (2) self assembled block copolymer micelles were incorporated as dilute agents to restrict the interchain interaction of fluorescent polymers. The efficient long range FRET of solution-blended BGR fluorescent polymers synergistically occurred while interchain nonradiative fluorescent quenching was suppressed by insulating nanometer scale micelles. Thorough investigation of various blend compositions of B-G, B-R and G-R allowed for optimized blend compositions giving rise to enhanced green and red emission. Significantly improved AC green EL was obtained with brightness of approximately 6000 cd m-2 in an AC EL device containing a mixture of blue-green polymers (D-A=8:2) |
| 저자 |
조성환, 박철민
|
| 소속 |
연세대 |
| 키워드 |
Field-induced electroluminescence; FRET assisted AC electroluminescence; Multi-walled carbon nanotubes; Block copolymer micelles; Fluorescent polymer
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| E-Mail |
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