| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Highly efficient blue-based hybrid organic-inorganic polymer light-emitting diodes with charge carrier balance by enhancing electron injection and blocking hole carriers. |
| 초록 |
Highly efficient blue LED were demonstrated by combination effect of polar solvent treatment and hole trap using F8 : TFB blends to balance the charge carrier transport, leading to enhance the recombination of charge carriers. The interfacial dipole layer reduced the energy barrier and thicker layer effectively blocks hole carriers and reduces quenching exciton near the interface of ZnO and emissive layers. In addition, the addition of a small amount of TFB into F8 functions as hole trap due to the difference between HOMO level of F8 and TFB and balances charge carrier. Moreover, optical quenching could be reduced by inserting polar solvent layer, which was confirmed by optical loss coefficient measurement. The device stability was investigated based on the measurement of luminance and luminance efficiency under ambient air condition. The F8-based and F8:TFB blend-based device performances with polar solvent treatment showed almost the same as initial values for a long time. |
| 저자 |
이승진1, 이보람1, 김지선2, 송명훈1
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| 소속 |
1울산과학기술대, 2Imperial college |
| 키워드 |
PLED; polar solvnet; hole trap; stability
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| E-Mail |
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