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TitleInverted spectra of single-wall carbon nanotube films
Publication TypeJournal Article
Year of Publication2008
AuthorsLehman, J.H., Hurst K.E., Roberson L.K., Nield K., and Hamlin J.D.
JournalJournal of Physical Chemistry C
Pagination11776 - 11778
Date Published2008
ISSN19327447 (ISSN)
KeywordsAbsolute measurements, Absorbance, Absorbance data, Absorbance spectrum, Absorption, Carbon films, Carbon nanotubes, Diffuse reflectance measurements, Excitonic transitions, Fruits, Inverted spectra, Nanocomposites, Nanopores, Nanostructured materials, Nanostructures, Nanotechnology, Nanotubes, Pyro-electric detectors, Pyroelectricity, Reflection, Single wall carbon nano tubes, Single-walled carbon nanotubes (SWCN), Transmissivity, Walls (structural partitions)
AbstractWe present absolute measurements of reflectance and absorbance for a purified single wall carbon nanotube (SWCNT) film. The absorbance spectrum of a SWCNT-laminated pyroelectric detector for wavelengths 0.6-2 μm is inverted when compared to absorbance data in the literature, which is typically inferred by reciprocity from transmissivity measured by a spectrophotometer. This surprising behavior has been corroborated by diffuse reflectance measurements and suggests that reflectance dominates absorption for wavelengths near excitonic transitions. © 2008 American Chemical Society.

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