Fabrication and characterization of photovoltaic devices based on `self corralled' CdSe nanorods functionalized with polythiophene

ORAL

Abstract

It has been shown that the CdSe nanorods can be oriented normal to the surface by employing an electric field and a polymer matrix where nanorods phase separate. The nanorods close pack with orientation normal to surface in a thin film when the CdSe nanorods are functionalized with alkane and poly(methyl methacrylate) or poly(3-hexyl thiophene)(P3HT) is the matrix. The film is drop-cast under electric field. The phase separation of the nanorods in polymer matrix can be directed by using a patterned surface. The patterned surface was prepared by soft-lithography. Further, the nanorods functionalized with P3HT are `self corralled' under electric field by using a polymer matrix and photovoltaic devices are fabricated. The devices are characterized and the results for devices with normally oriented nanorods are compared to the devices with nanorods parallel to surface.

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Authors

  • Suresh Gupta

    • Polymer Science and Engineering Department, University of Massachusetts Amherst
    • University of Massachusetts, Amherst
    • Department of Polymer Science \& Engineering, University of Massachusetts, Amherst, MA 01003, USA

  • Qingling Zhang

    • Polymer Science and Engineering Department, University of Massachusetts Amherst
    • University of Massachusetts, Amherst
    • University of Massachusetts Amherst
    • Department of Polymer Science \& Engineering, University of Massachusetts, Amherst, MA 01003, USA

  • Ali Cirpan

    • University of Massachusetts, Amherst

  • Frank Karasz

    • University of Massachusetts, Amherst

  • Todd Emrick

    • Polymer Science and Engineering Department, University of Massachusetts Amherst
    • Department of Polymer Science \& Engineering, University of Massachusetts, Amherst, MA 01003, USA
    • University of Massachusetts, Amherst
    • University of Massachusetts Amherst
    • University of Massachuestts Amherst
    • Polymer Science and Engineering, University of Massachusetts, Amherst

  • Thomas Russell

    • University of Massachusetts
    • Dept. of Polymer Science and Engineering, University of Massachusetts at Amherst
    • Polymer Science and Engineering Department, University of Massachusetts Amherst
    • Department of Polymer Science \& Engineering, University of Massachusetts, Amherst, MA 01003, USA
    • University of Massachusetts, Amherst
    • Dept. of Polymer Science and Engineering, Univ. of Massachusetts, Amherst
    • Dept. of Polymer Science and Engineering, Univ. of Massachusetts Amherst
    • Polymer Science and Engineering, Univ. of Massachusetts Amherst
    • Department of Polymer Science and Engineering,University of Massachusetts-Amherst