Morphology, fluorescence properties, and their photothermal changes of poly(substituted thiophene) films revealed by near-field fluorescence microspectroscopy

Citation
N. Kurokawa et al., Morphology, fluorescence properties, and their photothermal changes of poly(substituted thiophene) films revealed by near-field fluorescence microspectroscopy, J MICROSC O, 202, 2001, pp. 420-424
Citations number
10
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Multidisciplinary
Journal title
JOURNAL OF MICROSCOPY-OXFORD
ISSN journal
0022-2720 → ACNP
Volume
202
Year of publication
2001
Part
2
Pages
420 - 424
Database
ISI
SICI code
0022-2720(200105)202:<420:MFPATP>2.0.ZU;2-R
Abstract
The morphology and fluorescence spectrum of poly(3-[2-(N-dodecylcarbamoylox y)ethyl]thiophene-2,5-diyl) film were examined with spatial resolution of 1 00 nm using near-field fluorescence microspectroscopy. Fluorescence spectra observed at protruding domains were blue-shifted compared with flat areas, and further blue-shift was observed there more appreciably by long-time ir radiation Eia a near-field scanning optical microscope probe. It is conside red that the polymer chains at the protruding domains take disordered confo rmations, in which conjugated lengths are shorter and further disordering c an be induced more easily by irradiation compared with those in the flat ar eas.