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Multi-wavelength Raman Spectroscopy of Nanodiamond Particles
Published online by Cambridge University Press: 01 February 2011
Abstract
We have used Raman spectroscopy with 3 different laser excitation wavelengths (near infrared: 785 nm, green 514 nm, and ultraviolet 325 nm) to study diamond particles as a function of particle size, ranging from 5 nm to 100's of μm. We find that the position of the 1332 cm−1 diamond line varies with particle size as a direct result of heating by the laser. This effect is more significant for lower wavelengths, probably as a result of the increased absorbance by nanodiamond particles in the UV.
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- Copyright © Materials Research Society 2008
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