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