Effect of spherical gold nanoparticles size on nanoparticle enhanced Laser Induced Breakdown Spectroscopy

Different nanoparticle shapes for nanoparticle-enhanced laser-induced breakdown spectroscopy: nanosphere and nanorod effects

“…Sample preparation and the selection of NP dimensions and shapes are crucial for setting up the nanoparticle-enhanced laser ablation experiment. In previous works, 11,15,16 it has already been demonstrated that the enhancement effect strictly correlates with the distance between the NPs deposited on the sample surface. The latter means that the NP surface concentration plays a crucial role in setting the interparticle distance between the NPs.…”

“…[6][7][8][9][10] As with most analytical techniques using plasmonic NPs, the size and the shape of the nanostructures play an important role in the setting up of these experiments. 5 In our previous work, 11 the role of the dimension of spherical NPs on NELIBS enhancement with respect to LIBS was studied. Here, a detailed study on the effects of NP shape, specically spheres and nanorods, on the relative emission signal enhancement during NELIBS is systematically examined.…”

Atomic spectrometry update: review of advances in atomic spectrometry and related techniques

“…Connections between nanoparticles and laser and plasma spectroscopy were discussed in three major areas, including the monitoring of NP synthesis, characterisation and plasmonic signal enhancement. The role of the NPs , which are deposited on the sample surface before the laser irradiation in nanoparticle enhanced (NE) LIBS, was investigated by Salajková et al 121 The effect of coupling the NP plasmon with the laser pulse, which improves the analytical signal, was studied for spherical AuNPs with diameters between 10 and 100 nm. Results indicated that NE-LIBS occurred at a specific NP surface concentration and that this critical concentration depended on the NP size.…”

Influence of aluminum microparticles on plasma chemistry and structural dynamics of ns-laser ablated 5-methyl-1H-tetrazole in argon atmosphere

“…However, with further increasing Al concentration, the Al microparticles begin to agglomerate and their tunneling effect emerges. 21,[23][24][25] As a result, the timeintegrated peak intensities of the CN and C 2 emissions as a function of Al concentration increase rst and then decrease. Therefore, the physical interactions between the Al microparticles and the laser pulse is much more important than the connement effect in the LIP induced by the heavier Al atoms.…”