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High Open-Circuit Voltage Solid-State Dye-Sensitized Solar Cells with Organic Dye.
- Source :
-
Nano Letters . Jun2009, Vol. 9 Issue 6, p2487-2492. 6p. - Publication Year :
- 2009
-
Abstract
- Solid-state dye-sensitized solar cells were fabricated using an organic dye, 2-cyanoacrylic acid-4-(bis-dimethylfluoreneaniline)dithiophene (JK2), which exhibits more than 1 V open-circuit potential (Voc). To scrutinize the origin of high voltage in these cells, transient Vocdecay measurements and density functional theroy calculations of the interacting dye/semiconductor surface were performed. A negative conduction band shift was observed due to the favorable dipolar field exerted by the JK2 sensitizer to the TiO2surface, at variance with heteroleptic Ru(II)-dyes for which an opposite dipole effect was found, providing an increased Voc. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15306984
- Volume :
- 9
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Nano Letters
- Publication Type :
- Academic Journal
- Accession number :
- 41436322
- Full Text :
- https://doi.org/10.1021/nl901246g