Small-molecule photovoltaics based on functionalized squaraine donor blends.

نویسندگان

  • Xin Xiao
  • Guodan Wei
  • Siyi Wang
  • Jeramy D Zimmerman
  • Christopher K Renshaw
  • Mark E Thompson
  • Stephen R Forrest
چکیده

Two squaraine (SQ) donor molecules with different absorption bands are blended together for better coverage of the solar spectrum. The blend SQ device shows a significant improvement compared with single SQ donor devices. By applying a solvent annealing process and a compound buffer layer, a power-conversion efficiency of 5.9 ± 0.3% is achieved under 1 sun illumination.

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عنوان ژورنال:
  • Advanced materials

دوره 24 15  شماره 

صفحات  -

تاریخ انتشار 2012