| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 봄 (04/12 ~ 04/13, 대전컨벤션센터) |
| 권호 |
37권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Pore Filling of Spiro-OMeTAD and Charge Transfer Yield for Efficient Generation of Photocurrent in Solid-State Dye-Sensitized Solar Cells |
| 초록 |
In solid-state dye-sensitized solar cells, poor pore filling of the hole conductor into the mesoporous TiO2 network has been known to be a limiting parameter. To enhance penetration of spiro-OMeTAD, their physical compatibility with sensitizing dye seems to be of importance. Accordingly, we compared series of organic dyes functionalized with different end group for sDSCs. As a result, nanocrystalline TiO2 sensitized with an organic dye having a methoxy end group provided best filling fraction of spiro-OMeTAD. We revealed that the filling fraction of the hole conductor is linearly related with their hole transfer yield from an oxidized dye to a cationic form of the hole conductor.Finally, the filling fraction and the resulting hole transfer yield is related with photocurrent in sDSCs using three organic dyes, which provided linear relationship. The detailed photophysical characterizations of organic dyes as well as sDSCs are also discussed in the presentation. |
| 저자 |
권영수1, 임종철1, 송인우1, 송인영1, 신원석2, 문상진2, 박태호1
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| 소속 |
1포항공과대, 2한국화학(연) |
| 키워드 |
염료감응 태양전지; 유기염료; 정공전달 물질; 전하전달
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| E-Mail |
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