Details

Autor(en) / Beteiligte

• Lehman, John H
• Hurst, Katherine E
• Roberson, Lara K
• Nield, Kathryn
• Hamlin, John D

Titel

Inverted Spectra of Single-Wall Carbon Nanotube Films

Ist Teil von

• Journal of physical chemistry. C, 2008-08, Vol.112 (31), p.11776-11778

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2008

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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 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.