Fabrication of gold nanoparticles in water by laser ablation technique and their characterization

Optical properties of tin oxide nanoparticles prepared by laser ablation in water: Influence of laser ablation time duration and laser fluence

“…6 that with increase in LF, the size (radius) of the prepared nanoparticles is reduced. In fact higher LF leads to larger kinetic energy that increases collision among initially formed large nanoparticles in the condensation process which further reduces the size of the prepared nanoparticles [19].…”

“…However, the size distribution tends to be broadened because the coagulation processes of the atoms can hardly be controlled. There are some reports in which the size controlled synthesis of SnO 2 nanoparticles has been achieved by using different surrounding medium [18], variable laser fluence [19], different wavelengths [20] and surfactants [20]. However, the effect of variation of laser ablation time on the size and optical properties of SnO 2 nanoparticles synthesized by laser ablation technique has not been studied so far, to the best of our knowledge.…”

“…Recently, laser ablation in liquid, which involves focusing a high power laser beam on to the surface of solid target submerged in a liquid, has received much attention to prepare metal [13][14][15], their oxides [16], and also the semiconductor nanoparticles [17]. This process has a strong potential to synthesize nanoparticles through appropriate selection of target and liquid combination as well as laser parameter [18,19]. In contrast to other conventional process this method offers the possibility of nanoparticle growth in a controllable and contamination free environment and allows us to prepare nanoparticles with ease and without using expensive agents.…”

Effect of ablation time and laser fluence on the optical properties of copper nano colloids prepared by laser ablation technique

“…Recently Jeon et al (1998) have reported the effect of different laser wavelength (1,064 and 532 nm) and for a particular wavelength (1,064 nm) the effect of focusing on ablation efficiency. Haider et al (2011) have reported the effect of laser energy on the ablation efficiency of the prepared gold nanocolloids. Very recently, Mafune et al (2002) has reported the formation of Ag nanocolloids in aquash solution of sodium dodecyl sulphate (SDS) and examined the influence of laser energy, number of laser pulses and concentration of SDS on ablation efficiency.…”

Thermo optical properties of Ag nanoparticles produced by pulsed laser ablation

“…One of the advantages of laser ablation method is controlling the size and morphology of nanoparticles by laser parameters. By changing laser fluenece, laser wavelength, laser repetition rate, and focal length of focusing lens, one may control the morphology, size and concentration of nanoparticles (Jeon and Yeh 1998;Prochazka et al 1997;Haider et al 2011). The present study of isolated particles allows the directed observation of ultrafast coherent nonlineaties associated with the plasmon as well as incoherent heating effects (Pelton et al 2005;Sudheesh and Chandrasekharan 2012;Souza et al 2008).…”