| 학회 |
한국고분자학회 |
| 학술대회 |
2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO)) |
| 권호 |
45권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Breath Figure Patterned Light Extraction Structures for High Performance Organic Light-Emitting Diodes |
| 초록 |
We report light extraction efficiency enhanced organic light-emitting diodes (OLEDs) using microlens array films prepared by a simple solution-processed imprinting technique with breath figure patterns. The characteristics of angle-dependent spectrum stability for OLEDs with the breath figure extraction film have not been studied so far. The films with breath figure micro-patterns (BFMP) effectively extract confined light in the glass substrate, which leads to the greatly improved light extraction performance of OLEDs. We observe the enhancement of external quantum efficiency of the OLEDs employing the BFMP extract film is about 1.51, corresponding to the enhancement of the power efficiency by a factor of 1.65. Moreover, the device with the light extraction film shows the limited angle-dependency of emission spectrum over viewing angles. The BFMP films prepared with a low-cost, simple, and solution-processable fabrication process can pave the way to achieving high-performance OLEDs. |
| 저자 |
박성빈1, 한주원1, 주철웅2, 이종희3, 김용현1
|
| 소속 |
1부경대, 2한국전자통신(연), 3한밭대 |
| 키워드 |
Breath figure; Microlens array; MLA; OLED; Light extraction
|
| E-Mail |
|
