| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
대학원생 구두발표 (발표10분) |
| 제목 |
Universal flexible anodes with tunable work function for organic light-emitting didoes |
| 초록 |
In order to embody fully flexible optoelectronic devices, conventional brittle ITO tansparent anodes should be replaced with any other flexible anodes. Here, we embodied ITO-free organic light-emitting diodes (OLEDs) using self-organized conducting polymers as transparent anodes without any hole injection layer. The self-organized conducting polymers are prepared based on poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) in which 5wt% DMSO is added to enhance their conductivity. As a key component, perfluorinated ionomer (PFI) is included to achieve a high work function (WF). They showed excellent WF-tuning (~ 5.8 eV). Our OLED devices showed highly improved current efficiency and stability even with a simplified structure. Furthermore, we analyzed hole-injection characteristics between the modified polymeric anode layer and a hole-transport layer using dark injection space-charge limited current transient measurement (DI-SCLC) measurement. |
| 저자 |
정수훈1, 우성훈2, 한태희1, 박민호1, 조힘찬1, 김호범1, 임경근1, 이태우1
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| 소속 |
1포항공과대, 2메사추세츠 공대 |
| 키워드 |
polymeric anodes; organic light-emitting diodes
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| E-Mail |
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