| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
37권 2호 |
| 발표분야 |
Flexible Electronics/Transparent Electrode |
| 제목 |
Graphene Oxide as Multi-Functional p-Dopant of Flexible, Transparent Single-Walled Carbon Nanotube Electrodes for Flexible Optoelectronic Devices |
| 초록 |
Here, we report, for the first time, that graphene oxide (GO) nanosheets play a p-doping agent and surface energy modifier of single-walled carbon nanotube (SWCNT)-based transparent conducting electrodes (TCEs). The deposition of highly oxidized, small-sized (i.e., diameter of less than 500 nm) GO nanosheets onto a SWCNT network film reduces the sheet resistance of the pristine film to 60% of its original value by p-doping. Our TCEs have an outstanding optoelectronic figure of optical and direct-current conductivity ratio of 20.5 and the water contact angle of 113° is decreased to 27.9°. In addition, the flexible organic photovoltaic (OPV) cells with the GO-doped SWCNT anodes demonstrate that GO-modified TCEs are a good alternative anode material for use in OPV cells. In stark contrast to a power conversion efficiency of 0.44% for pristine SWCNT anode, GO-doped SWCNT anodes show a drastically enhanced power conversion efficiency of 2.7%. |
| 저자 |
한중탁1, 조새벽2, 정희진1, 정승열1, 조길원2, 이건웅1
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| 소속 |
1한국전기(연), 2포항공과대 |
| 키워드 |
carbon nanotube; graphene oxide; doping; flexible electrode; optoelectronci devices
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| E-Mail |
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