Fluorescence efficiency of individual carbon nanotubes.
The luminescence efficiency of individual single-walled carbon nanotubes was determined by comparing the fluorescence from individual nanotubes to single CdTe/ZnS quantum dots with a well-defined fluorescence quantum yield (QY). The single carbon nanotube QY was determined to be 3 +/- 1%, nearly 100 times greater than values previously reported for ensembles. The intrinsic nanotube QY is potentially much higher than previously believed and appears lower in ensembles due to defective nanotubes and residual bundles.
Carlson
Lisa J
LJ
Chemistry Department, University of Rochester, Rochester, NY 14627, USA.
Maccagnano
Sara E
SE
Zheng
Ming
M
Silcox
John
J
Krauss
Todd D
TD
D017348:Microscopy, Electron, Scanning Transmission; D037742:Nanotubes, Carbon / Q000737:chemistry*; D011789:Quantum Theory; D013050:Spectrometry, Fluorescence; D013053:Spectrophotometry
D037742:Nanotubes, Carbon