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Fabrication of conjugated polymer arrays by spinodal dewetting
Author(s) -
Yan Lifeng,
Yang Jinlong,
Zhou Mi,
Zhu Qingshi
Publication year - 2004
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1605
Subject(s) - dewetting , spinodal , materials science , evaporation , polymer , fabrication , conjugated system , mica , solvent , chemical engineering , photoluminescence , nanotechnology , thin film , chemistry , optoelectronics , organic chemistry , composite material , phase (matter) , thermodynamics , medicine , physics , alternative medicine , pathology , engineering
Ordered arrays of conjugated poly(9,9‐dihexylfluorene) (PF) were prepared by the spinodal dewetting of liquid thin films on mica substrates. The size of the aggregates in the arrays was controlled by the evaporation rate of the solvent. Fast solvent evaporation resulted in smaller aggregates; slower evaporation resulted in larger aggregates. The photoluminescence of the PF arrays showed a smaller red‐shift than that of the unpatterned film when compared to PF solutions, which indicated that the aggregation of PF in the arrays is smaller than that in the unpatterned films. Copyright © 2004 Society of Chemical Industry