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Sensitizers containing donor cascade and rhodanine-3-acetic acid moieties for dye-sensitized solar cells

Authors
Journal
Solar Energy
0038-092X
Publisher
Elsevier
Publication Date
Volume
85
Issue
1
Identifiers
DOI: 10.1016/j.solener.2010.11.011
Keywords
  • Dye-Sensitized Solar Cell
  • Photovoltaic
  • Donor Cascade
  • Triarylamine
  • Dimethylaryl Amine
Disciplines
  • Design
  • Physics

Abstract

Abstract Three organic dyes with D-π-D-π-A structure based on triarylamine, dimethylarylamine, and rhodanine-3-acetic acid moieties are designed and synthesized. Incorporating thiophene moieties into the system affords sensitizers with high molar extinction coefficients. These dyes were applied into nanocrystalline TiO 2 dye-sensitized solar cells through standard operations. For a typical device the maximal monochromatic incident photon-to-current conversion efficiency (IPCE) can reach 73%, with a short-circuit photocurrent density ( J sc) of 7.3 mA/cm 2, an open-circuit voltage ( V oc ) of 636 mV, and a fill factor ( ff) of 0.61, corresponding to an overall conversion efficiency ( η) of 2.86%.

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