Highly structured TiO2/In(OH)xSy/PbS/ PEDOT:PSS for photovoltaic applications

R. Bayon, R. Musembi, A. Belaidi, M. Bär, T. Guminskaya, M. Ch Lux-Steiner, Th Dittrich

Research output: Contribution to journalArticle

31 Citations (Scopus)


A system of highly structured TiO2/In(OH)xS y/PbS/PEDOT:PSS has been developed and investigated by photovoltage spectroscopy, X-ray photo- and Auger electron spectroscopies, electron microscopy, and photovoltaic response. TiO2, In(OH)xS y, PbS, and PEDOT:PSS serve as electron conductor, buffer layer, absorber, and hole conductor, respectively. Both buffer and absorber layers were prepared by chemical bath deposition. The band gap of as-prepared In(OH) xSy varied between 2.4 and 3.5 eV depending on the pH-value of the solution. In addition, the band gap of the PbS could be widened to about 0.85 eV making the application as absorber for solar cells feasible. At present, corresponding solar cell devices reach short-circuit current densities of about 8 mA/cm2 and open-circuit voltages of about 0.3 V.

Original languageEnglish
Pages (from-to)13-25
Number of pages13
JournalSolar Energy Materials and Solar Cells
Issue number1
Publication statusPublished - 15 Oct 2005


  • Highly structured TiO
  • PbS
  • Photovoltage spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films

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