Exciton dissociation and charge-transport enhancement in organic solar cells with quantum-dot/N-doped CNT hybrid nanomaterials

Adv Mater. 2013 Apr 11;25(14):2011-7. doi: 10.1002/adma.201204454. Epub 2013 Jan 14.

Abstract

The incorporation of InP quantum-dot/N-doped multiwalled carbon nanotube (QD:NCNT) nanohybrids in the active layer of poly(3-hexylthiophene)/indene-C60 bisadduct (P3HT/ICBA) bulk-heterojuction solar cells enhances V(OC) and J(SC) . The QDs encourage exciton dissociation by promoting electron transfer, while the NCNTs enhance the transport of the separated electrons and eventual charge collection. Such a synergistic effect successfully improves the power conversion efficiency (PCE) from 4.68% (reference cells) to 6.11%.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amines / chemistry
  • Fullerenes / chemistry
  • Indenes / chemistry
  • Nanotubes, Carbon / chemistry*
  • Quantum Dots*
  • Quantum Theory
  • Solar Energy*
  • Thiophenes / chemistry

Substances

  • Amines
  • Fullerenes
  • Indenes
  • Nanotubes, Carbon
  • Thiophenes
  • poly(3-hexylthiophene)
  • indene
  • fullerene C60
  • dodecylamine