Fig. 1From: Chemical Vapor Deposition of Vertically Aligned Carbon Nanotube Arrays: Critical Effects of Oxide Buffer LayersRaman spectra of VACNTs grown on different buffer layers: a ALD Al2O3, b EB Al2O3, c sputtered Al2O3, and d SiO2. The spectra have been normalized to the intensity of the G band to facilitate comparisonBack to article page