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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47464

Title: Mesoscale Structures in Luminescent Conjugated Polymer thin film studied by near-field scanning optical microscopy
Authors: P. K. Wei
C. H. Tan
Anto Regis Inigo
J. H. Hsu
W. S. Fann
Contributors: 國立臺灣海洋大學:光電科學研究所
Date: 2001-05
Issue Date: 2018-07-23T08:15:16Z
Publisher: JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
Abstract: Abstract: We report the studies of various conjugated polymer thin films with near-field scanning optical microscopy, NSOM. Firstly, it is shown that MEH-PPV thin film undergoes significant changes in film morphology upon thermal annealing. The once homogeneous morphology becomes inhomogeneous after annealing. Secondly, polarization near-field measurements reveal mesoscale polymer ordering in PPV thin film. The average domain size and the coefficient for linear dichroism were studied as a function of film thickness. Finally, phase separation in polymer blend film was directly observed by transmission NSOM. Time-resolved fluorescence spectra indicate that the phase domains are decomposed of different fractions of the two constituent polymers. The near-field optical microscopy was also used to write lithographic patterns with a resolution of 100 nm, exceeding the diffraction limit.
Relation: 62(9.10) pp.1643-1655
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47464
Appears in Collections:[光電科學研究所] 期刊論文

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