Abstract
Spectrofluorimetric measurements on single-walled carbon nanotubes (SWNTs) isolated in aqueous surfactant suspensions have revealed distinct electronic absorption and emission transitions for more than 30 different semiconducting nanotube species. By combining these fluorimetric results with resonance Raman data, each optical transition has been mapped to a specific ( n , m ) nanotube structure. Optical spectroscopy can thereby be used to rapidly determine the detailed composition of bulk SWNT samples, providing distributions in both tube diameter and chiral angle. The measured transition frequencies differ substantially from simple theoretical predictions. These deviations may reflect combinations of trigonal warping and excitonic effects.
References
26
Referenced
2,716
-
M. S. Dresselhaus G. Dresselhaus P. C. Eklund Science of Fullerenes and Carbon Nanotubes (Academic Press San Diego CA 1996).
(
10.1016/B978-012221820-0/50003-4
) 10.1126/science.1072631
10.1021/jp993592k
10.1016/S0379-6779(98)00278-1
10.1103/PhysRevB.66.035412
10.1103/PhysRevB.61.2981
10.1103/PhysRevB.62.4273
- Examples of adjacent points on linking curves would be (10 5) and (11 3) or (10 5) and (8 6). The linking curve pattern is most easily seen from Fig. 1A. When the pattern crosses the armchair line to denote structures with m > n the n and m indices should be interchanged.
10.1126/science.275.5297.187
10.1016/S0008-6223(02)00066-0
10.1103/PhysRevLett.80.3779
10.1016/S0009-2614(99)00594-1
- The Raman offset term B has generally been associated with bundling effects in nanotube spectra. We include it here only to obtain a better empirical fit to data. Assignment “a” remains preferred when B is forced to zero.
10.1016/S0008-6223(02)00010-6
10.1021/j100007a055
10.1021/jp010853t
10.1103/PhysRevB.59.10928
10.1016/S0009-2614(99)01291-9
10.1126/science.273.5274.483
10.1016/S0009-2614(96)01442-X
10.1016/S0009-2614(97)00258-3
-
R. Saito G. Dresselhaus M. S. Dresselhaus Physical Properties of Carbon Nanotubes (Imperial College Press London 1998).
(
10.1142/p080
) - The chiral angle approaches 30° for each family of nanotube structures in the limit of long transition wavelengths (large diameters).
10.1143/JPSJ.66.1066
10.1143/JPSJ.68.3131
- Supported by NSF (grant CHE-9900417) the NSF Focused Research Group on Fullerene Nanotube Chemistry (grant DMR-0073046) the NSF Center for Biological and Environmental Nanotechnology (grant EEC-0118007) and the Robert A. Welch Foundation (grants C-0807 and C-0689). Support from NASA (grant NCC 9-77) for development of the HiPco method is also gratefully acknowledged. We thank M. O'Connell and V. Moore for assistance in sample preparation S. Doorn for Raman spectroscopy the University of Illinois Materials Research Laboratory for use of facilities S. Reich for generously sharing computer codes and extended tight binding results before publication and G. Mele for helpful and stimulating discussions.
Dates
Type | When |
---|---|
Created | 22 years, 8 months ago (Dec. 19, 2002, 7:05 p.m.) |
Deposited | 1 year, 7 months ago (Jan. 9, 2024, 10:53 p.m.) |
Indexed | 3 weeks ago (Aug. 2, 2025, 12:08 a.m.) |
Issued | 22 years, 8 months ago (Dec. 20, 2002) |
Published | 22 years, 8 months ago (Dec. 20, 2002) |
Published Print | 22 years, 8 months ago (Dec. 20, 2002) |
@article{Bachilo_2002, title={Structure-Assigned Optical Spectra of Single-Walled Carbon Nanotubes}, volume={298}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1078727}, DOI={10.1126/science.1078727}, number={5602}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Bachilo, Sergei M. and Strano, Michael S. and Kittrell, Carter and Hauge, Robert H. and Smalley, Richard E. and Weisman, R. Bruce}, year={2002}, month=dec, pages={2361–2366} }