Founded in 1887
Zeitschrift für Physikalische Chemie
International journal of research in physical chemistry and chemical physics
Ed. by Rademann, Klaus
IMPACT FACTOR 2015: 1.183
SCImago Journal Rank (SJR) 2015: 0.491
Source Normalized Impact per Paper (SNIP) 2015: 0.520
Impact per Publication (IPP) 2015: 1.133
The Electronic Role of the TiO2 Light-Scattering Layer in Dye-Sensitized Solar Cells
Citation Information: Zeitschrift für Physikalische Chemie. Volume 221, Issue 3, Pages 319–327, ISSN (Print) 0942-9352, DOI: 10.1524/zpch.2007.221.3.319, September 2009
- Published Online:
Dye-sensitized solar cells have been fabricated with different kinds of TiO2 films including SiO2 coated and bare TiO2 microparticles as light-scattering layer (LSL). Results show that the LSL barely affects the cell's dark current, whereas under illumination, it made a significant contribution to the total photocurrent. Photo-voltage decay measurements performed under bias illumination show the density of electronic states (DOS) of the LSL to be two times smaller than that of a transparent nanoparticle layer (TNL). Strikingly, DSCs fabricated from a 4.5μm thick LSL alone showed a conversion efficiency of 5% despite of being pale pink in color. This impressive performance is attributed to light containment in the LSL and a low density of defect electronic states.
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