| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터) |
| 권호 |
39권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Low-Temperature Fabrication of TiO2 Electrodes for Highly Efficient and Stable Flexible DSSCs |
| 초록 |
Flexible DSSCs have been focus of several investigations over the past few years. The main challenge associated with the fabrication of flexible DSSC is identifying techniques which reduce the processing temperature. Also, long-term stability of photovoltaic device is just as important as the efficiency for practical applications. We prepared 0-D hierarchically structured TiO2 (HS-TiO2) spherical particle on a flexible ITO-PEN substrate via electrospray deposition under low-temperature conditions. The HS-TiO2 film formed by this method yielded a large surface area and a highly porous structure. The cell efficiency increased when using ITO-PEN substrates post-treated by either a mechanical compression treatment or a chemical sintering treatment using titanium n-tetrabutoxide to enhance the inter-sphere connectivity. Finally, we revealed the binding mode of N719 on low-temperature processed HS-TiO2 surface and demonstrated strongly bound of N719 dyes on TiO2 surfaces using stearic acid. |
| 저자 |
이호림1, 황대섭2, 조성무3, 김동호2, 서용석1, 김동영3
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| 소속 |
1서울대, 2연세대, 3한국과학기술(연) |
| 키워드 |
DSSC; flexible; low-temperature process; stability
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| E-Mail |
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