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Enhanced light harvesting with a reflective luminescent down-shifting layer for dye-sensitized solar cells

Hosseini, Z ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1021/am401584y
  3. Publisher: 2013
  4. Abstract:
  5. For a dye-sensitized solar cell with a near-infrared squaraine (SQ1) sensitizer, the photovoltaic performance was enhanced remarkably with a reflective luminescent down-shifting (R-LDS) layer to increase the light-harvesting efficiency at the wavelength region 400-550 nm where the SQ1 dye has weak absorption. Relative enhancements greater than 200% in IPCE near 500 nm and 40-54% in JSC were achieved with red phosphor CaAlSiN 3:Eu2+ as the LDS material, attaining 5.0 and 4.8% overall efficiencies of power conversion for the R-LDS layer coated on the counter electrode (front illumination) and working electrode (back illumination), respectively
  6. Keywords:
  7. Dye-sensitized solar cells ; Counter electrodes ; Dye-Sensitized solar cell ; luminescent down shifting ; Overall efficiency ; Photovoltaic performance ; Squaraine dyes ; Wavelength regions ; Working electrode ; Luminescence ; Phosphors ; Photoelectrochemical cells ; Solar cells
  8. Source: ACS Applied Materials and Interfaces ; Volume 5, Issue 12 , 2013 , Pages 5397-5402 ; 19448244 (ISSN)
  9. URL: http://pubs.acs.org/doi/abs/10.1021/am401584y