| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 봄 (04/04 ~ 04/06, 대전컨벤션센터) |
| 권호 |
43권 1호 |
| 발표분야 |
대학원생 구두발표 (영어발표, 발표15분) |
| 제목 |
Molecular Orientation Controlled Planar Heterojunction Organic Photovoltaics |
| 초록 |
Here, we investigate the influence of interfacial donor-acceptor molecular orientation on photocurrent generation. Planar heterojunction solar cells with orientation-controlled conjugated polymer layers are fabricated and analyzed as a model system. The orientation of polymer chains is modified by controlling solvent evaporation during spin-coating process. The photocurrent generation is more efficient in the device with face-on donor-acceptor interface than the device with edge-on donor-acceptor interface. Photophysical analyses reveal that the molecular orientation affects charge separation at the interface, resulting in enhanced free charge generation in the case of face-on interface. These results emphasize the importance of molecular orientation control for high performance of OSCs. |
| 저자 |
이한솔, 이동기, 신동훈, 조길원
|
| 소속 |
포항공과대 |
| 키워드 |
organic solar cells; molecular orientation
|
| E-Mail |
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