Matches in SemOpenAlex for { <https://semopenalex.org/work/W2005698839> ?p ?o ?g. }
- W2005698839 abstract "The ${E}_{33}$ and ${E}_{44}$ optical transitions of small diameter $(0.7--1.2phantom{rule{0.3em}{0ex}}mathrm{nm})$ semiconducting single-walled carbon nanotubes are probed using deep blue $(415--465phantom{rule{0.3em}{0ex}}mathrm{nm})$ resonance Raman spectroscopy and photoluminescence excitation spectroscopy in the UV and blue regions $(280--488phantom{rule{0.3em}{0ex}}mathrm{nm})$. Individual radial breathing mode features, as well as Raman and photoluminescence excitation maxima, are assigned to specific nanotube chiralities. The chiral angle dependence of Raman intensity within a given $2n+m$ branch is found to continue, as does the trend toward increased excitation linewidths and weaker Raman intensities as higher lying transitions are accessed. The semiconducting ${E}_{33}$ and ${E}_{44}$ transition energies obtained for the largest observed diameters confirm recent results [P. T. Araujo et al., Phys. Rev. Lett. 98, 067401 (2007)] that show that these transitions reside on a blueshifted scaling-law line, separate from that describing ${E}_{11}$ and ${E}_{22}$ behaviors. Energies for nanotubes with diameter less than $0.9phantom{rule{0.3em}{0ex}}mathrm{nm}$, however, are not explained by any previous scaling-law fits. This behavior at small diameters is interpreted in terms of both a crossing over of the ${E}_{33}$ and ${E}_{44}$ energy trend lines for a given $2n+m$ branch and a chirality dependence in the many-body exciton effects that becomes significant at high curvatures." @default.
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- W2005698839 date "2008-03-07" @default.
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- W2005698839 title "Curvature effects on the<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:msub><mml:mi>E</mml:mi><mml:mn>33</mml:mn></mml:msub></mml:math>and<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:msub><mml:mi>E</mml:mi><mml:mn>44</mml:mn></mml:msub></mml:math>exciton transitions in semiconducting single-walled carbon nanotubes" @default.
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- W2005698839 doi "https://doi.org/10.1103/physrevb.77.125405" @default.
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