High-Performance Aqueous/Organic Dye-Sensitized Solar Cells Based on Sensitizers Containing Triethylene Oxide Methyl Ether

Ryan Yeh Yung Lin, Feng Ling Wu, Chun Ting Li, Pei Yu Chen, Kuo Chuan Ho*, Jiann T. Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)

Abstract

Metal-free dyes (EO1 to EO4) containing the hydrophilic triethylene oxide methyl ether (TEOME) unit in the spacer have been synthesized and used in dye-sensitized solar cells (DSSCs). Efficient lithium-ion trapping by TEOME results in improved open-circuit voltage (VOC), leading to excellent conversion efficiency of the cells, ranging from 9.02 to 9.98% with I-/I3- electrolyte in acetonitrile under AM1.5 illumination. The TEOME unit also enhances the wettability of the dye molecules for application in aqueous-based DSSCs. Aqueous-based DSSCs with a dual TEMPO/iodide electrolyte exhibit high VOC values (0.80-0.88V) and very promising cell performances of up to 5.97%.

Original languageEnglish
Pages (from-to)2503-2513
Number of pages11
JournalChemSusChem
Volume8
Issue number15
DOIs
Publication statusPublished - 2015 Aug 10
Externally publishedYes

Keywords

  • dyes/pigments
  • electrochemistry
  • sensitizers
  • solar cells
  • synthesis design

ASJC Scopus subject areas

  • Environmental Chemistry
  • Chemical Engineering(all)
  • Materials Science(all)
  • Energy(all)

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