Effect of acetic acid in TiCl 4 post-treatment on nanoporous TiO 2 electrode in dye-sensitized solar cell

Soo Kyoung Kim, Min Kyu Son, Jin Kyoung Kim, Byung Man Kim, Na Yeong Hong, Kandasamy Prabakar, Hee Je Kim

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4 Citations (Scopus)

Abstract

Titanium tetrachloride (TiCl 4) is adopted as a post-treatment on the nanoporous titanium oxide (TiO 2) layers to enhance the performance of dyesensitized solar cells (DSCs). A TiCl 4 post-treatment is capable of improving electron transport and dye-loading on the surface of TiO 2 layers. In this study, the TiCl 4 solution mixed with acetic acid was employed to enhance the condition of the TiCl 4 post-treatment. Since acetic acid in the TiCl 4 solution prevents the formation of impurities and facilitates the crystallization, it improves dye adsorption and electron transport properties. To analyze the performance of the cell, we measured X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) surface measurements, UV-vis spectroscopy and electrochemical impedance spectroscopy (EIS) and photocurrent-voltage (I-V) measurements.

Original languageEnglish
Article number09MA05
JournalJapanese journal of applied physics
Volume51
Issue number9 PART3
DOIs
Publication statusPublished - Sep 1 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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