Self-assembly monolayer of anatase titanium oxide from solution process on indium tin oxide glass substrate for polymer photovoltaic cells

Chun Hao Huang, Chia Hua Huang, Thien Phap Nguyen*, Chain-Shu Hsu

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

Titanium dioxide (TiO2) thin films were deposited on indium tin oxide (ITO) coated glass substrates by a liquid phase deposition method using two different precursor concentrations of 0.01 M and 0.005 M [NH4]2TiF6. Characterizations of the deposited TiO2 films were performed by using different spectroscopic techniques including X-ray photoelectron spectroscopy, Raman spectroscopy and X-ray diffraction. From scanning electron microscopy observation, the surface of the TiO2 films show a ricelike morphology. We have fabricated polymer-based photovoltaic cells (PCs) using the studied TiO2 films and compared their performances to those using bare ITO-coated glass substrates. The structure of the PCs is glass/ITO/TiO2/PCBM:P3HT/Au where PCBM:P3HT is poly(3-hexylthiophene) and [6,6]-phenyl-C61-butyric acid methyl ester. The power conversion efficiency of these devices is determined to be 0.85%, which is higher than that of similar devices without TiO2 films (0.13%).

Original languageEnglish
Pages (from-to)6493-6496
Number of pages4
JournalThin Solid Films
Volume515
Issue number16 SPEC. ISS.
DOIs
StatePublished - 4 Jun 2007

Keywords

  • Liquid phase deposition
  • Polymer photovoltaic cells
  • Titanium dioxide

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