Parameters Influencing the Absorbance of Gold-Silver Alloy Nanomaterials Using the Pulsed Laser Ablation in Liquid (PLAL) Approach: a Review

Laser ablation is one of the promising methods that can be used to synthesize nanomaterials and improve the surface plasmon resonance (SPR) of gold-silver alloy nanomaterials. Parameters (laser wavelength, exposure time, laser pulse duration, repetition rate, and energy density of laser) and medium of ablation ambient parameters (mixing ratio, liquid, and ambient gas) could affect the formation and SPR of gold-silver alloy nanomaterials. The parameters that can affect the synthesis of Au-Ag alloy nanomaterials were energy density, SPR, laser wavelength, and pulse repetition rate. The method of using ambient gas instead of liquid was known as pulsed laser ablation deposition (PLAD). It is the simplest way to change the SPR by adjusting the pressure of the gas in the atmosphere. Finally, this review provided useful knowledge for newcomers and scholars and good references to conduct future laboratory works.

Automated summary

Laser ablation is a promising method for synthesizing nanomaterials and improving the surface plasmon resonance of gold-silver alloy nanomaterials. The parameters and ambient factors can affect the formation and SPR of these materials. Adjusting the gas pressure in the atmosphere is the simplest way to change the SPR.