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High molecular weight polyethylene nanospheres: synthesis, physical and mechanical properties--second harmonic
1Department of Physics, National Tsing Hua University, Hsin Chu, Taiwan.
Journal of Nanoscience and Nanotechnology
|August 7, 2008
Abstract:
The weak second harmonic light generating from carbon nanotubes are detected. The signal intensity closely related to the density of pi-bonds attributed to the defects in the rolled graphene sheets, which is stimulated to have anharmonic oscillation as strongly affected by the environment. The intensities of SHG are diminished in order of well-aligned multi-wall carbon nanotubes (MWCNTs), randomly-aligned MWCNTs, and then to single-wall CNTs.
