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