Unusually Large Franz-Keldysh Oscillations at Ultraviolet Wavelengths in Single-Walled Carbon Nanotubes

We report large electroabsorption susceptibilities in the ultraviolet region for single-walled carbon nanotubes (SWNT) supported on quartz that are approximately 10(3) larger than the highest values reported to date for any system. The oscillatory behavior is described using a convolution of Airy functions in photon energy ascribing the effect to Franz-Keldysh oscillations. The metallic and semiconducting SWNT composition is varied, and it is shown that the confinement energy correlates with the average band gap for semiconducting SWNT in the film. The large susceptibilities arise from a subpercolated network of metallic SWNT that enhances the local electric field.
Publisher
AMER PHYSICAL SOC
Issue Date
2009-01
Language
ENG
Keywords

QUANTUM CAPACITANCE; GALLIUM NITRIDE; FUNCTIONALIZATION; ELECTROABSORPTION; SPECTROSCOPY; EXCITONS

Citation

PHYSICAL REVIEW LETTERS, v.102, no.4

ISSN
0031-9007
DOI
10.1103/PhysRevLett.102.047402
URI
http://hdl.handle.net/10203/9303
Appears in Collection
CBE-Journal Papers(저널논문)
Files in This Item
000262978600071.pdf(712.19 kB)Download
  • Hit : 163
  • Download : 305
  • Cited 0 times in thomson ci
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡClick to seewebofscience_button
⊙ Cited 10 items in WoSClick to see citing articles inrecords_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0