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Volumn 79, Issue 4, 2009, Pages

Highly oriented poly(paraphenylene vinylene): Polarized optical spectroscopy under pressure

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EID: 58949093984     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.79.045202     Document Type: Article
Times cited : (19)

References (79)
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    • According to Kasha (Ref.) we evaluate the electron-phonon coupling with the phonon energy and not with the more specific Huang-Rhys factor (S), which is related to the phonon frequency through the displacement of ground and excited state minima of the potential energy since minor variation in S are observed in ε2 spectra upon changing the applied pressure (Ref.).
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    • A double structure masked under a vibronic peak could be alternatively interpreted as an evidence of multiple vibrational modes (as observed in Raman spectrum) contributing to the vibronic progression. However, since no new Raman modes appear upon applying pressure while the double structure instead gains intensity, we feel confident to discard this alternative interpretation.
    • A double structure masked under a vibronic peak could be alternatively interpreted as an evidence of multiple vibrational modes (as observed in Raman spectrum) contributing to the vibronic progression. However, since no new Raman modes appear upon applying pressure while the double structure instead gains intensity, we feel confident to discard this alternative interpretation.
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    • The isosbestic point in an absorption spectrum during a chemical reaction or a phase transition is the wavelength where the two phases posses the same absorption coefficient. A stable isosbestic point is evidence that a reaction is proceeding without forming intermediate or multiple products. In our case, within the approximation reported in the paper, this stability point is observed in the spectral development of the oscillator strength function.
    • The isosbestic point in an absorption spectrum during a chemical reaction or a phase transition is the wavelength where the two phases posses the same absorption coefficient. A stable isosbestic point is evidence that a reaction is proceeding without forming intermediate or multiple products. In our case, within the approximation reported in the paper, this stability point is observed in the spectral development of the oscillator strength function.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.