In situ 3-hexylthiophene polymerization onto surface of TiO2 based hybrid solar cells

  • Shengli Lu
  • Sam-Shajing Sun
  • Xiaoxia Jiang
  • Jianwei Mao
  • Tiehu Li
  • Kexi Wan


A novel configuration of hybrid solar cells fabricated using TiO2 and in situ polymerization of poly(3-hexylthiophene), or P3HT, on the surface of TiO2 is reported. Comparison of UV–Vis absorption and current/voltage (I/V) characteristics of devices with or without in situ polymerized P3HT layer were discussed, and the surface morphology of TiO2/in situ polymerized P3HT film was investigated by AFM in the contact mode. The short-circuit current density and energy conversion efficiencies of device with in situ polymerized P3HT layer were higher by 6 times and 3 times compared to that of device without the in situ polymerized P3HT layer. By adding poly (ethylene dioxythiophene)-poly (styrene sulfonic acid)(PEDOT-PSS) layer under the top contact, device showed a short-circuit current density of 1.27 mA cm−2, an open-circuit voltage of 0.52 V, a fill factor of 0.24, and a energy conversion efficiency of 0.16% at AM 1.5 solar illumination (100 mW cm−2).


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Shengli Lu
    • 1
  • Sam-Shajing Sun
    • 2
  • Xiaoxia Jiang
    • 3
  • Jianwei Mao
    • 1
  • Tiehu Li
    • 1
  • Kexi Wan
    • 1
  1. 1.Institute for Organic Photovoltaic Materials and Devices, School of Biological and Chemical EngineeringZhejiang University of Science and TechnologyHangzhouP. R. China
  2. 2.Chemistry Department and PhD Program in Materials Science and EngineeringNorfolk State UniversityNorfolkUSA
  3. 3.Department of Polymer Science and EngineeringZhejiang UniversityHangzhouP. R. China

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