Photovoltaic interface modification via electrostatic self-assembly

J. W. Baur, M. F. Durstock, B. E. Taylor, R. J. Spry, S. Reulbach, L. Y. Chiang

Research output: Contribution to journalArticlepeer-review


The device efficiency of PPV-C60 based photovoltaic devices has been substantially increased by increasing the interfacial area between the electron donor and acceptor layers. Electrostatic Self-Assembly (ESA) provides a means to deposit thin films of electroactive materials with a very controlled thickness and has shown usefulness in modifying physical and electrical interfaces. In this study, we attempt to control the effective interfacial area by modifying the interface between the PPV electron donor and C60-based electron acceptor with molecularly blended ESA bilayers of PPV and derivatized C60. It is observed that with only 2 bilayers of (PPV/C60-) a 3-fold increase in device efficiency is obtained. Thus, ESA films offer promise for the nanoscaled modification of interfaces in organic-based photocells.

Original languageEnglish (US)
Pages (from-to)1547-1548
Number of pages2
JournalSynthetic Metals
Issue number1-3
StatePublished - Mar 15 2001
Externally publishedYes


  • C60
  • Charge transfer
  • Photovoltaics
  • Poly(p-phenylene vinylene)
  • Self-assembly
  • Solar cells

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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