Block Copolymer Based Supramolecules for Organoelectronics

POSTER

Abstract

Block copolymer (BCP)-based supramolecules present unique advantages over conjugated BCPs to fabricate functional devices such as OLEDs and photovoltaics. The self assembly of 5'''-(3,7-dimethyloctyl)-5-(3-(3-hydroxyphenyl)propyl)-[2,2';5',2'';5'',2'''] quaterthiophene (4T) hydrogen bonded to the poly(4-vinylpyridine) (P4VP) block of polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP) BCP was studied in bulk and thin films. Lamellae-within-lamellae hierarchical structure was observed and can be macroscopically oriented at both length scales in thin films. Films of pure 4T, P4VP(4T) and PS-b-P4VP(4T) composites were investigated as organic field-effect transistors (OFETs). Phase behavior of blends of the BCP-based supramolecule and PCBM were also investigated to guide the fabrication of organic photovoltaics.

Authors

  • Benjamin Rancatore

    • Department of Chemistry, UC Berkeley

  • Shih-Huang Tung

    • Department of Materials, UC Berkeley

  • Clayton Mauldin

    • Department of Chemistry, UC Berkeley

  • Paul Tillberg

    • Department of Materials, UC Berkeley

  • Claire Woo

    • Department of Chemical Engineering, UC Berkeley

  • Jean Frechet

    • Department of Chemistry, UC Berkeley
    • UC Berkeley

  • Ting Xu

    • Dept. of Materials Science and Engineering, University of California, Berkeley
    • University of California, Berkeley
    • Dept. of Materials Science and Engineering, UC Berkeley
    • Department of Materials Science and Engineering, Department of Chemistry, University of California, Berkeley
    • Department of Materials, UC Berkeley
    • Materials Science and Engineering, Department of Chemistry, University of California, Material Sciences Division, Lawrence Berkeley National Lab
    • UC Berkeley