Morphology Study of Bulk Heterojuction Solar Cells Based on PCDTBT

POSTER

Abstract

To achieve high efficiency, the processing of conditions bulk heterojunction photovoltaic are important so that the desired morphology favoring efficient charge separation, electron and hole transportation can be generated. Solar cells based on poly[N-9"-hepta-decanyl-2,7-carbazole-alt- 5,5-(4',7'-di- 2-thienyl-2',1',3'-benzothiadiazole) (PCDTBT) as the donor system have been made. The effect of solvent, additives and annealing temperature have been systematically investigated. Grazing incidence small angle scattering (GI-SAXS), wide angle scattering (GI-WAXS), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and atomic force microscopy (AFM) were utilized to study the morphology.

Authors

  • Hsin-Wei Wang

    • UMass Amherst

  • Thomas P. Russell

    • University of Massachusetts Amherst
    • University of Massachusetts, Amherst
    • UMass Amherst
    • University of Massachusetts-Amherst
    • UMASS-Amherst
    • University of Massachusetts - Amherst
    • Polymer Science \& Engineering Department, University of Massachusetts, Amherst

  • Todd Emrick

    • University of Massachusetts Amhesrt
    • University of Massachusetts Amherst
    • UMass Amherst
    • Polymer Science \& Engineering Department, University of Massachusetts, Amherst
    • Polymer Science and Engineering Department at University of Massachusetts Amherst