Presentation 2001/4/20
Relation between defects in main chain and fluorescence in the ultra-violet and visible bands of polysilanes
Seiji Toyoda, Michiya Fujiki,
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Abstract(in English) We investigated the absorption, photoluminescence (PL), and PL anisotropy spectra of a variety of poly(alkylarylsilylene)s in solution at room temperature and in thin film form at 20 K. The poly(alkylarylsilylene)s include poly(methyl-p-t-butylphenylsilylene) (1), poly(methylphenylsilylene) (2), poly(ethylphenylsilylene) (3), poly(n-pentylphenylsilylene) (4),poly(n-hexylphenylsilylene) (5) and poly(n-pentyl-m-tolylsilylene) (6). Although there was always a visible PL band from 1,2, and 3 in the visible region, there was almost no visible PL band with thin films of 4,5, and 6 in the room temperature to 20 K range. We ascribe the difference in the PL characteristics to the extended global shape with a spatially homogeneous local conformational structure in solution and in solid films.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) polysilane / visible broad fluorescence / defects in main chain
Paper # OME2001-4
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Committee OME
Conference Date 2001/4/20(1days)
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Registration To Organic Material Electronics (OME)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Relation between defects in main chain and fluorescence in the ultra-violet and visible bands of polysilanes
Sub Title (in English)
Keyword(1) polysilane
Keyword(2) visible broad fluorescence
Keyword(3) defects in main chain
1st Author's Name Seiji Toyoda
1st Author's Affiliation NTT Basic Research Laboratories()
2nd Author's Name Michiya Fujiki
2nd Author's Affiliation NTT Basic Research Laboratories
Date 2001/4/20
Paper # OME2001-4
Volume (vol) vol.101
Number (no) 35
Page pp.pp.-
#Pages 6
Date of Issue