Dye-sensitized nanocrystalline titanium-oxide-based solar cells prepared by sputtering:: Influence of the substrate temperature during deposition

被引：38
作者：
Gómez, MM
Lu, J
Solis, JL
Olsson, E
Hagfeldt, A
Granqvist, CG
机构：
[1] Uppsala Univ, Angstrom Lab, Dept Mat Sci, SE-75121 Uppsala, Sweden
[2] Uppsala Univ, Dept Phys Chem, SE-75121 Uppsala, Sweden
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2000年 / 104卷 / 36期
关键词：
D O I：
10.1021/jp001566c
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Nanocrystalline titanium oxide films were prepared by DC magnetron sputtering onto SnO2:F-coated glass substrates kept at temperatures in the 50 < tau(s) < 300 degrees C range. Dye sensitization in cis-dithiocyanato-bis(2,2'-bipyridyl-4,4'-dicarboxylate) ruthenium(II) yielded solar cells with a conversion efficiency eta. The dye incorporation was dependent upon tau(s), and an optimum value of eta = 1.7% was found with similar to 0.8-mu m-thick titanium oxide films prepared at 250 degrees C. The microstructure then displayed a well-defined parallel penniform pattern, and the luminous transmittance was 42%. The crystallite size was substantially enlarged at tau(s) > 250 degrees C, and eta showed an ensuing decrease.
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页码：8712 / 8718
页数：7
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