Synthesis and Characterization of Gold Nanorods: Effects of AgNO3 and Seed Volumes

Abel Sambou^1, , Allé Dioum¹, Ansoumane Diedhiou² and Mamadou Sao¹

¹Groupe de Physique du Solide et Sciences des Matériaux (GPSSM)-Department of Physics, Cheikh Anta Diop University (UCAD), Dakar, Senegal

²Département de Physque, UFR-Sciences et Technologie, Laboratoire LCPM, Université Assane Seck de Ziguinchor, BP: 523 Diabir, Sénégal

Cite this paper:
Abel Sambou, Allé Dioum, Ansoumane Diedhiou and Mamadou Sao. Synthesis and Characterization of Gold Nanorods: Effects of AgNO3 and Seed Volumes. Nanoscience and Nanotechnology Research. 2026; 9(1):1-8. doi: 10.12691/nnr-9-1-1

Abstract

We determine the surface plasmon resonance (SPR) band values of nanorods gold nanoparticles as function of silver nitrate and seeds solution volume.Seed-mediated growth process is used to prepare gold nanorods. The influence of silver nitrate and seeds solution volume was studied using the characterizations techniques: UV-Vis-NIR and TEM. The results showed the nanoparticles obtained increasing silver nitrate and seeds solution volume were proved to produce a maximal longitudinal SPR (SPRL) response and good dispersion. Homogeneous nanorods were obtained under conditions with optimized seed volume.The SPR performance of the nanoparticles was systematically evaluated using volume silver nitrate (80 l to 160l) and volume seeds (15 l to 45l).The resonance frequency show an evolution toward high wavelength, results for these structures demonstrated potential applications in windows optical.

Keywords:
Gold nanorods optical properties Seeding growth method Surface plasmon resonance (SPR) AgNO₃ and Seed effects

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