Selective electron- or hole-transport enhancement in bulk-heterojunction organic solar cells with N- or B-doped carbon nanotubes

  • Lee J
  • Park J
  • Lee S
 et al. 
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Doping improves performance. N- or B-doped carbon nanotubes (CNTs) uniformly dispersed in the active layer of P3HT/PCMB (poly (3-hexylthiophene/[6,6]-phenyl-C61-butyric acid methyl ester) bulk-heterojunction solar cells selectively enhance electron or hole transport and eventually help carrier collection. Specifically, the incorporation of 1.0 wt% B-doped CNTs results in balanced electron and hole transport and accomplishes a power conversion efficiency improvement from 3.0% (without CNTs) to 4.1%.

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  • Seunghyup YooKorea Advanced Institute of Science and Technology

  • Ju Min Lee

  • Ji Sun Park

  • Sun Hwa Lee

  • Hoyeon Kim

  • Sang Ouk Kim

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