Nanostructured Hybrid Solar Cells Based on Self-Assembled Mesoporous Titania Thin Films
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- 作者：Emmanuelle Lancelle-Beltran ; Philippe Prené ; Christophe Boscher ; Philippe Belleville ; Pierrick Buvat ; Sé ; bastien Lambert ; Franç ; ois Guillet ; Cé ; dric Boissiè ; re ; David Gr
- 刊名：Chemistry of Materials
- 出版年：2006
- 出版时间：December 26, 2006
- 年：2006
- 卷：18
- 期：26
- 页码：6152 - 6156
- 全文大小：185K
- 年卷期：v.18,no.26(December 26, 2006)
- ISSN：1520-5002
文摘
Nanocrystalline mesostructured porous titania thin films with optimized coating and thermal curingconditions have been prepared for the first time using spin-coating deposition technique. The X-raydiffraction (XRD) and the grazing incidence small-angle X-ray scattering (GI-SAXS) measurementsrevealed that the crystallization and diffuse sintering of amorphous TiO2 into anatase are simultaneouslystarting between 400 and 500 
C curing temperature, leading to a gridlike open-pore-shape transformation.The environmental ellipsometric porosimetry (EEP) measurements show that the 550 C-cured TiO2films exhibit a high porous volume (0.30 cm3 g-1), a large surface area (172 m2 cm-3), and a Youngmodulus of 1.05 GPa. All solid-state dye-sensitized solar cells (DSSC) based on nanocrystallinemesostructured TiO2 films and poly(3-octylthiophene) as hole conductor allow reproducible achievementof energy conversion efficiencies of about 0.52%. These values, obtained with thin TiO2 films (250 nm),are very promising.
C curing temperature, leading to a gridlike open-pore-shape transformation.The environmental ellipsometric porosimetry (EEP) measurements show that the 550 C-cured TiO2films exhibit a high porous volume (0.30 cm3 g-1), a large surface area (172 m2 cm-3), and a Youngmodulus of 1.05 GPa. All solid-state dye-sensitized solar cells (DSSC) based on nanocrystallinemesostructured TiO2 films and poly(3-octylthiophene) as hole conductor allow reproducible achievementof energy conversion efficiencies of about 0.52%. These values, obtained with thin TiO2 films (250 nm),are very promising.