Enhanced efficiency of large-area dye-sensitized solar cells by light-scattering effect using multilayer TiO2 photoanodes
- CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 588 Heshuo Road, Shanghai 201899 (China)
Highlights: • DSSCs with an active area of 100.6 cm{sup 2} and light-scattering layers are fabricated. • The light-scattering effect is shown to enhance the light absorption in the red part of the solar spectrum. • The light-scattering effect is more important than the dye adsorption capacity for TiO{sub 2} photoanodes with same thickness. • The highest power conversion efficiency of 7.52% has been obtained by the DSSC with optimized conditions. - Abstract: In order to reduce the usage of photoactive dye and improve light harvesting by the photoanode of dye-sensitized solar cells (DSSCs), TiO{sub 2} scatting layers were introduced. We have investigated the light-scattering effect in large-area DSSCs with an active area of 100.6 cm{sup 2} that contain diffusing or reflective layers. The result shows that the light-scattering effect is more important than the dye adsorption capacity for the light harvesting property of TiO{sub 2} photoanodes with same thickness, and the light-scattering effect is shown to enhance the light absorption in the red part of the solar spectrum. The highest power conversion efficiency of 7.52% has been obtained by the cell with optimized high dye adsorption layer and high light-scattering layer, which is 9.5% higher than that of the cell without the light-scattering layer (6.87%).
- OSTI ID:
- 22803925
- Journal Information:
- Materials Research Bulletin, Vol. 100; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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