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Pratiwi, Salsa Dila Nisa
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Astronomy Earth & Planetary Sciences Materials Science & Nanotechnology Physics

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Journal : Journal of Physics and Its Applications

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The Effect of Laser Ablation Time On The Concentration of Gold Nanoparticle Colloids Pratiwi, Salsa Dila Nisa; Khumaeni, Ali; Nurhasanah, Iis
Journal of Physics and Its Applications Vol 8, No 1 (2026): February 2026
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v8i1.30233

Abstract

The use of gold nanoparticles is being studied more widely, including in the medical, electronics and sensor fields. Nanoparticles with high concentration and purity can be produced using the pulsed laser ablation method. This study aims to increase the concentration of gold nanoparticle colloids linearly with increasing ablation time using Nd: YAG Laser. The colloid concentration test parameters based on The concentration of AuNPs colloids with 10 minutes, 15 minutes, and 25 minutes ablation time is 5.17; 8.50; and 20.12 mg/L. It can be concluded that the longer ablation time succeeded in increasing the absorbance value and ultimately increasing the concentration of gold nanoparticle colloids. Nanoparticle colloid concentration can be further investigated using synthesis methods other than pulsed laser ablation.
Co-Authors Ali Khumaeni Iis Nurhasanah