Title

Single-Molecule Spectroscopy And Afm Morphology Studies Of A Diblock Copolymer Consisting Of Poly(3-Hexylthiophene) And Fullerene

Keywords

Conjugated polymers; Fullerenes; Morphology; Photovoltaics; Poly(3-hexylthiophene)

Abstract

A block copolymer containing P3HT and C60 is synthesized and subjected to single-molecule spectroscopy (SMS) and AFM studies to investigate the impact of the C60 on the P3HT chain conformation and the phase-separation behavior upon annealing, respectively. Both the SMS and the single-molecule polarization investigations indicate that the grafting of the C60-containing block to the P3HT moiety does not significantly change its conformational structure. AFM studies on thin films of the block copolymer indicate that they are stable with microphase separation, while blended films of the block-copolymer precursor (without C60) with PCBM undergo macroscale phase separation upon thermal annealing. Studies of a block copolymer containing P3HT and C60 suggest that the grafting of the C 60-containing block to the P3HT moiety does not significantly change the conformational structure of the P3HT moiety. The block copolymer film is stable with microphase separation, while a blend of the block copolymer precursor (withoutC60) with PCBM undergoes macroscale phase separation upon thermal annealing. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Publication Date

11-15-2010

Publication Title

Macromolecular Chemistry and Physics

Volume

211

Issue

22

Number of Pages

2416-2424

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1002/macp.201000482

Socpus ID

78449277188 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/78449277188

This document is currently not available here.

Share

COinS