| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 봄 (04/12 ~ 04/13, 대전컨벤션센터) |
| 권호 |
37권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Highly Efficient Polymer Light-Emitting Diodes Using Graphene Oxide as a Hole Transport Layer |
| 초록 |
We present an investigation of polymer light-emitting diodes (PLEDs) with a solution-processible graphene oxide (GO) interlayer. The GO layer with a wide bandgap blocks electron transport from an emissive polymer to an ITO anode while reducing the exciton quenching between the GO and the active layer in place of poly(styrenesulphonate)-doped poly(3,4-ethylenedioxythiophene) (PEDOT:PSS). PLEDs with a 4.3 nm-thick GO interlayer are superior to both those with PEDOT:PSS layers as well as those with rGO, showing maximum luminance of 39,000 Cd/m2, maximum luminous efficiencies of 19.1 Cd/A (at 6.8 V), and maximum power efficiency as high as 11.0 lm/W (at 4.4 V). This indicates that PLEDs with a GO layer show a 220 % increase in their luminous efficiency and 280 % increase in their power conversion efficiency compared to PLEDs with PEDOT:PSS. |
| 저자 |
이보람1, 김정우1, 강동우1, 고서진1, 이현정1, 이창렬2, 김진영1, 신현석1, 송명훈1
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| 소속 |
1UNIST, 2GIST |
| 키워드 |
Graphene Oxide (GO); Polymer Light-Emitting Diodes (PLEDs); Hole Transport Layer (HTL); Super Yellow (SY)
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| E-Mail |
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