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

Zahra Hosseini, Wei Kai Huang, Cheng Ming Tsai, Teng-Ming Chen, Nima Taghavinia*, Wei-Guang Diau

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)5397-5402
Number of pages6
JournalACS Applied Materials and Interfaces
Volume5
Issue number12
DOIs
StatePublished - 26 Jun 2013

Keywords

  • dye-sensitized solar cells
  • luminescent down shifting
  • phosphors
  • squaraine dyes

Fingerprint Dive into the research topics of 'Enhanced light harvesting with a reflective luminescent down-shifting layer for dye-sensitized solar cells'. Together they form a unique fingerprint.

Cite this