Presentation 1998/5/6
Emission Process and its Temperature Dependence of Polysilanes
M. Umeda, W. Ishizaka, S. Aihara, N. Kamata, D. Terunuma, K. Yamada,
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Abstract(in English) Polysilanes have unique properties as one-dimensional semiconductors due to the delocalization of the σ electrons along Si main-chain. Except for excitonic emission peculiar to the delocalized states, detailed correlation between molecular structure and luminescent properties has not been understood yet. In order to study the structural dependence of the emission characteristics, we performed time-resolved photoluminescence measurement of polysilanes with alkyl- and phenyl-based side-chains and those with branched main-chains as a function of temperature. An energy flow from the main-chain to a visible emission band, the dependence of energy relaxation process on temperature and on the branching ratio became clear phenomenologically.
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Keyword(in English) polysilanes / recombination lifetime / internal quantum-efficiency / photoluminescence
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Committee OME
Conference Date 1998/5/6(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) Emission Process and its Temperature Dependence of Polysilanes
Sub Title (in English)
Keyword(1) polysilanes
Keyword(2) recombination lifetime
Keyword(3) internal quantum-efficiency
Keyword(4) photoluminescence
1st Author's Name M. Umeda
1st Author's Affiliation Department of Functional Materials Science, Saitama University()
2nd Author's Name W. Ishizaka
2nd Author's Affiliation Department of Functional Materials Science, Saitama University
3rd Author's Name S. Aihara
3rd Author's Affiliation Department of Functional Materials Science, Saitama University
4th Author's Name N. Kamata
4th Author's Affiliation Department of Functional Materials Science, Saitama University
5th Author's Name D. Terunuma
5th Author's Affiliation Department of Functional Materials Science, Saitama University
6th Author's Name K. Yamada
6th Author's Affiliation Department of Functional Materials Science, Saitama University
Date 1998/5/6
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Volume (vol) vol.98
Number (no) 38
Page pp.pp.-
#Pages 5
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