Interfacially treated dye-sensitized solar cell with in situ photopolymerized iodine doped polythiophene

Iseul Lim, Seog Joon Yoon, Wonjoo Lee, Yoon Chae Nah, Nabeen K. Shrestha, Heejoon Ahn, Sung Hwan Han

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

A thin film of iodine doped polythiophene was grown photoelectrochemically around the dye-sensitized TiO 2 nanoparticles in a Grätzel cell, and the effect of iodine doping level on the cell performance was investigated using X-ray photoelectron spectroscopy, electrochemical impedance spectroscopy, and photovoltage decay. At an optimum doping level, the cell demonstrated the enhanced energy conversion efficiency by 27.52% compared to the cell without polythiophene.

Original languageEnglish
Pages (from-to)838-841
Number of pages4
JournalACS Applied Materials and Interfaces
Volume4
Issue number2
DOIs
StatePublished - 22 Feb 2012

Keywords

  • dye sensitized solar cell
  • enhanced energy conversion
  • interfacial treatment
  • iodine doping
  • photopolymerization
  • polythiophene

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