Effects of intense laser irradiation on Raman intensity features of carbon nanotubes
2002 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 65, no 7Article in journal (Refereed) Published
The effect of intense laser irradiation on the features of Raman intensity of carbon nanotubes (CNT's) has been examined. The intensity of the D band decreases and the relative intensity between the G peaks changes with increasing laser power density (LPD) and remain unchanged with subsequent decrease in LPD. This behavior is different from the reversible variation of the G band frequency in the same process of power increase and subsequent decrease. It has been demonstrated that such irreversible change in intensity features originates from sample purification. This result suggests a simple and fast CNT purification method using intense laser irradiation.
Place, publisher, year, edition, pages
2002. Vol. 65, no 7
spectroscopy, scattering, spectra, modes
IdentifiersURN: urn:nbn:se:kth:diva-21342ISI: 000174030900019OAI: oai:DiVA.org:kth-21342DiVA: diva2:340040
QC 201005252010-08-102010-08-10Bibliographically approved