Laser Ablation Method for Synthesizing Different Types of Carbon Nanostructures in Presence of Graphite Target

In this research, an attempt is made to approach a specific type of carbon, such as graphene or carbon nanotubes by using pulsed laser ablation technique in deionized water environment with changing the laser factors such as wavelength and fluence. nd:yag laser with two wavelengths of 1064 and 532 nm and three fluence of 0.8, 1 and 1.2 j/cm2 were selected that number of pulses was 5000 with a frequency of 10 hz to be irradiated on the graphite target at about 10 minutes. the medium was distilled water. graphite was located in the 40 ml of distilled water. the effects of wavelength and fluence of the laser have been experimentally investigated on types of carbon characteristics with different analysis such as raman scattering spectrum, fe-sem images, uv–vis-nir spectrum and x-ray diffraction (xrd). by using the mentioned analysis, the type of synthesized nano carbon is studied. this study evaluates the effects of the pulse energy and laser wavelength on properties of synthesized carbon nanoparticle in laser ablation method in medium of distilled water.