Abstract
In this paper, we report on a method to measure the strain in an individual single -walled carbon nanotube under tensile test by using micro Raman spectroscopy. Raman spectroscopy has many advantages for measuring strain of materials. The measurement is quick, non-destructive, and no special preparation required. Since the Raman G-band spectrum of SWCNT shifts down linearly against the tensile strain, we measured the strain in SWCNT loaded by a MEMS tensile testing device with a thermal actuator. As the result, we observed a down shift of the G-band, which corresponds to 0.15〜1.35% in strain. We confirmed the strain is successfully applied to SWCNT using the device.
