Inverted spectra of single-wall carbon nanotube films
John H. Lehman, Katie Hurst, Lara Roberson, K. Nield, J. D. Hamlin
We 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 υm 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.
, Hurst, K.
, Roberson, L.
, Nield, K.
and Hamlin, J.
Inverted spectra of single-wall carbon nanotube films, Journal of the American Chemical Society, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32838
(Accessed November 29, 2023)