Organic photovoltaic power conversion efficiency improved by AC electric field alignment during fabrication Journal Articles uri icon

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abstract

  • Ultra-low frequency AC field was employed to align p/n polymers during organic photovoltaic device fabrication. The resulting devices show 15% increase in power conversion efficiency and four-fold increase in parallel resistance. Supported by the transmission electron microscopy and atomic force microscopy images, the performance enhancement is attributed to the optimized morphology and enlarged p/n interface by AC field, which is more effective than DC, possibly explained by the argument of better mixing via back-and-forth shaking than a single swing.

authors

  • Zhao, Cindy X
  • Wang, Xizu
  • Zeng, Wenjin
  • Chen, Zhi K
  • Ong, Beng S
  • Wang, Kewei
  • Deng, Lulu
  • Xu, Gu

publication date

  • August 1, 2011