Molecular doping enhances photoconductivity in polymer bulk heterojunction solar cells

Adv Mater. 2013 Dec 23;25(48):7038-44. doi: 10.1002/adma.201302159. Epub 2013 Sep 19.

Abstract

Addition of low concentrations (<1:100, dopant:donor) of a fluorinated p-type dopant, F4-TCNQ leads to a considerable enhancement of the photocurrent in PCDTBT:PC70 BM bulk heterojunction solar cells. As a result, the power conversion efficiency increases from 6.41% to 7.94 %.

Keywords: F4-TCNQ; charge carrier density; charge recombination; molecular doping; photocurrent.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Dielectric Spectroscopy
  • Electrodes
  • Fullerenes / chemistry
  • Nitriles / chemistry
  • Polymers / chemistry*
  • Polystyrenes / chemistry
  • Solar Energy*
  • Thiophenes / chemistry
  • Tin Compounds / chemistry

Substances

  • Fullerenes
  • Nitriles
  • Polymers
  • Polystyrenes
  • Thiophenes
  • Tin Compounds
  • poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)
  • tetracyanoquinodimethane
  • indium tin oxide