Optical absorption of ion irradiated multi-walled carbon nanotube sheets in the visible to terahertz ranges

LOW ENERGY ACCELERATORS AND RADIATION APPLICATIONS

Optical absorption of ion irradiated multi-walled carbon nanotube sheets in the visible to terahertz ranges

ISHAQ Ahmad，

YAN Long，

HE Suixia，

ZHU Dezhang，

ZHOU Xingtai

Nuclear Science and Techniques

Vol.20, No.4

pp.197-201

Published in print 20 Aug 2009

DOI：10.13538/j.1001-8042/nst.20.197-201

42100

Optical absorption of Ar and H ion beam irradiated multi-walled carbon nanotube (MWCNT) sheets at various doses in the visible and terahertz spectral ranges was investigated. It was found that the optical absorption of MWCNT sheets in the visible range was decreased with increasing ion irradiation dose. Similar behavior was observed in terahertz range, where the optical absorption of MWCNT sheets in the range of 0 to 1.5 THz was also decreased with increasing ion irradiation dose. The optical absorption decreases in irradiated MWCNT sheets can be ascribed to the increase of defects in the irradiated MWCNTs.

Carbon nanotubesIon irradiationOptical absorption

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