Structural dynamics and charge transfer via complexation with fullerene in large area conjugated polymer honeycomb thin films

Hsinhan Tsai, Zhihua Xu, Ranjith Krishna Pai, Leeyih Wang, Andrew M. Dattelbaum, Andrew P. Shreve, Hsing Lin Wang, Mircea Cotlet

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Structural and optical properties of poly{2,5-bis[3-(N,N-diethylamino)-1- oxapropyl]-1,4-phenylenevinylene} (P1)-based honeycomb and charge transfer when the honeycomb is complexed with fullerenes either by electrostatic interaction or in blend was reported. The optical properties of a P1-honeycomb film prepared by breathfigure technique (BFT) and one prepared by drop-casting a P1 film from chlorobenzene using confocal fluorescence lifetime imaging (FLIM) and microspectroscopy was compared. Analysis of P1-honeycomb surface morphology by atomic force microscopy (AFM) reveals average node/frame thicknesses of 600 nm/250 nm, respectively. The P1-honeycomb-patterns exhibit highly intense, red-shifted and vibronically structured photoluminescence compared to that of the dropcasted P1 films, likely reflecting regions of ordered close packing or enhanced π-π stacking between polymer chains.

Original languageEnglish (US)
Pages (from-to)759-761
Number of pages3
JournalChemistry of Materials
Volume23
Issue number3
DOIs
StatePublished - Feb 8 2011

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