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- W2034234039 endingPage "1581" @default.
- W2034234039 startingPage "1578" @default.
- W2034234039 abstract "Optical absorption spectra have been measured for finite-chain analogs of linear polysilane, silicon oligomers CH 3 [Si(CH 3 ) 2 ] n CH 3 , with controlled chain length n (=2 to 16). The intense lowest electronic absorption peak and its higher-lying side bands, which correspond to the one-dimensional exciton series in the infinite chain, shift to higher energy with decrease of the chain length because of the confinement of the excited states. The oscillator strength of the main absorption peak increases with the chain length, while the linewidth of the main peak drastically decreases, especially in the region n =2 to 6. These finite size effects of the electronic (excitonic) absorption are argued in terms of spatial extension of the excited states, motional narrowing and electron correlation effect." @default.
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- W2034234039 date "1996-06-15" @default.
- W2034234039 modified "2023-09-30" @default.
- W2034234039 title "Optical Spectra of Silicon Oligomers" @default.
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- W2034234039 doi "https://doi.org/10.1143/jpsj.65.1578" @default.
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