Self-Photoluminescence of Unzipped Multi-Walled Carbon Nanotubes
نویسندگان
چکیده
منابع مشابه
Environmental effects on photoluminescence of single-walled carbon nanotubes
Spectroscopy is a powerful technique to characterize single-walled carbon nanotubes (SWNTs). In particular, photoluminescence (PL) and the excitation spectroscopies have made a great advance in understanding the energy states and transition processes of excitons in SWNTs. The PL spectroscopy also has a potential to assign the chiral index (n,m) of a SWNT and to evaluate the abundance of (n,m) i...
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The polarized photoluminescence excitation spectra of twenty-five single-walled carbon nanotube species are reported. For light polarized along the nanotube axis, the main absorption resonance at E22 shows sidebands attributed to phonon assisted absorption. Sidebands to E11 have a diameter dependent energy and are assigned to excited excitonic states. Along with longitudinal excitations, severa...
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Photoluminescence excitation (PLE) spectroscopy of single-walled carbon nanotubes (SWNTs) has been extensively studied for characterization of their unique electronic properties due to the one-dimensionality. The precise evaluation of exciton transition energy is essential for experimental assignments of optical absorption, photoluminescence, and resonant Raman scatterings. Here, several experi...
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ژورنال
عنوان ژورنال: Nanomaterials
سال: 2021
ISSN: 2079-4991
DOI: 10.3390/nano11071632