| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
37권 2호 |
| 발표분야 |
Flexible Electronics/Transparent Electrode |
| 제목 |
Graphene Electrodes for Flexible OLEDs |
| 초록 |
Graphene films have a strong potential to replace indium tin oxide anodes in organic light-emitting diodes (OLEDs). However, the luminous efficiency of OLEDs with graphene anodes has been limited by a lack of efficient methods to improve the low work function and reduce the sheet resistance of graphene films to the levels required for electrodes. Here, we fabricate flexible OLEDs by modifying the graphene anode to have a high work function and low sheet resistance, and thus achieve extremely high luminous power efficiencies (37.2 lm/W in fluorescent OLEDs, 102.7 lm/W in phosphorescent OLEDs), which are significantly higher than those of optimized devices with an indium tin oxide anode (24.1 lm/W in fluorescent OLEDs, 85.6 lm/W in phosphorescent OLEDs). |
| 저자 |
한태희1, 이영빈2, 최미리1, 배상훈2, 홍병희3, 안종현2, 이태우1
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| 소속 |
1포항공과대, 2성균관대, 3서울대 |
| 키워드 |
Graphene; OLED; Flexible Devices
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| E-Mail |
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