| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 가을 (10/07 ~ 10/08, 대구 EXCO) |
| 권호 |
35권 2호 |
| 발표분야 |
고분자 가공/복합재료 |
| 제목 |
White Light-Emitting Diodes using Electrospun Emitting Fiber Mats of Polymer/Quantum Dot Composites as Down Conversion Phosphor Layers |
| 초록 |
Electrospinning (ES) is a very simple process by which polymer nanofibers can be produced. Quantum dots are representative 0-D nanostructured phosphor which has broad absorption and narrow emission spectrum, so that they can be easily embedded in polymer nanowires. We have successfully fabricated the poly(9-vinylcarbazole) (PVK) / quantum dot composite fiber mat because the electrospun nanofibers are easily twisted because of bending instability. We employed the composite fiber mat as a down-conversion phosphor layer of blue light-emitting diodes for white emission. By mixing complementary colors of a blue light-emitting diode and orange quantum dots, white light-emission was realized with a CIE coordinate of (0.367, 0.367). Time-correlated single photon counting (TCSPC) measurement was also performed to compare photoluminescence lifetime of the composite fiber mat with that of the film. |
| 저자 |
민성용1, 방지원1, 박주원1, 류재현1, 이성원2, 박종진3, 정운룡2, 주태하1, 김성지1, 이태우1
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| 소속 |
1포항공대, 2연세대, 3삼성종합기술원 |
| 키워드 |
electrospinning; quantum dot; composite fiber; white light-emitting diode
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| E-Mail |
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