Controlling the Morphology of Nanocrystal–Polymer Composites for Solar Cells Journal Article uri icon



  • AbstractWe have shown recently that the use of high‐aspect‐ratio inorganic nanorods in conjunction with conjugated polymers is a route to obtaining efficient solar cells processed from solution. Here, we demonstrate that the use of binary solvent mixtures in which one of the components is a ligand for the nanocrystals is effective in controlling the dispersion of nanocrystals in a polymer. By varying the concentration of the solvent mixture, phase separation between the nanocrystal and polymer could be tuned from micrometer scale to nanometer scale. In addition, we can achieve nanocrystal surfaces that are free of surfactant through the use of weak binding ligands that can be removed through heating. When combined, the control of film morphology together with surfactant removal result in nanorod–polymer blend photovoltaic cells with a high external quantum efficiency of 59 % under 0.1 mW cm–2 illumination at 450 nm.

publication date

  • January 16, 2003

has restriction

  • green

Date in CU Experts

  • January 31, 2018 11:39 AM

Full Author List

  • Huynh WU; Dittmer JJ; Libby WC; Whiting GL; Alivisatos AP

author count

  • 5

Other Profiles

International Standard Serial Number (ISSN)

  • 1616-301X

Electronic International Standard Serial Number (EISSN)

  • 1616-3028

Additional Document Info

start page

  • 73

end page

  • 79


  • 13


  • 1