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Effects of intense laser irradiation on Raman intensity features of carbon nanotubes
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.
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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
Abstract [en]

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
Keyword [en]
spectroscopy, scattering, spectra, modes
URN: urn:nbn:se:kth:diva-21342ISI: 000174030900019OAI: diva2:340040
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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