Beneficial effects of liquid crystalline phases in solid-state dye-sensitized solar cells

Rubén D. Costa, Fabian Werner, Xinjiao Wang, Philipp Grönninger, Sebastian Feihl, Florian T.U. Kohler, Peter Wasserscheid, Susanne Hibler, Radim Beranek, Karsten Meyer, Dirk M. Guldi

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

Two novel double-alkyl functionalized imidazolium ionic liquid crystals have successfully been utilized to demonstrate the benefits of the liquid crystalline phase on the ssDSSC performance. In particular, a good balance between dye regeneration and hole transport is only realized in the liquid crystalline phase. Devices that employ a single component ionic liquid based electrolyte show a remarkably stable efficiency during 1000 h under outdoor operation temperature conditions and 1 sun illumination. Two novel double-alkyl functionalized imidazolium ionic liquid crystals have successfully been utilized to demonstrate the benefits of the liquid crystalline phase on the ssDSSC performance.

Original languageEnglish
Pages (from-to)657-665
Number of pages9
JournalAdvanced Energy Materials
Volume3
Issue number5
DOIs
StatePublished - May 2013
Externally publishedYes

Keywords

  • ionic liquids
  • liquid crystalline phase
  • outdoor conditions
  • solid electrolyte
  • solid-state dye-sensitized solar cells

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