Polyaniline on crystalline silicon heterojunction solar cells

Weining Wang, E. A. Schiff

Research output: Contribution to journalArticlepeer-review

78 Scopus citations


Organic/inorganic heterojunction solar cells were fabricated on the (100) face of n -type silicon crystals using acid-doped polyaniline (PANI) with widely varying conductivities. For films with conductivities below 10-1 Scm, the open-circuit voltage VOC increases with increasing film conductivity as expected when VOC is limited by the work function of the film. Extrapolation of these results to the higher conductivity films indicates that PANI could support VOC of 0.7 V or larger. VOC measurements for the cells with higher conductivity PANI saturated at 0.51 V. We speculate that uncontrolled surface states at the PANI/Si interface are reducing these values.

Original languageEnglish (US)
Article number133504
JournalApplied Physics Letters
Issue number13
StatePublished - 2007

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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