Homogeneous Plasmonic Au Nanoparticles Fabrication Using In Situ Substrate Heating by Sputtering

Rathee, Neeraj; Jaggi, Neena

doi:10.1007/s11468-018-0735-1

Cited by 5 publications

(1 citation statement)

References 43 publications

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“…Also, alteration in optical characteristics [including localized surface plasmon resonance (LSPR)] of the films with substrate temperature was not explored. Rathee et al [17] fabricated plasmonic gold nanoparticles using in situ substrate heating by sputtering technique and reported red shift of LSPR absorption maxima with increase in substrate temperature. However, the temperature range studied was quite high and also no temperature threshold on LSPR property of the nanoparticles was identified.…”

Section: Introductionmentioning

confidence: 99%

Temperature threshold for localized surface plasmon resonance in glancing angle deposited ultra-thin silver films

De¹,

Haque²,

Sikdar³

et al. 2020

J. Phys.: Condens. Matter

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Low thickness silver (Ag) coatings (thickness ∼25 nm) were fabricated by electron beam evaporation technique equipped with glancing angle deposition (GLAD, 86 • ) arrangement at varrying substrate heating temperatures (viz 30 • C, 75 • C, 125 • C and 150 • C). Although all the GLAD-Ag films prepared up to 125 • C temperature were found to be plasmonic in nature, the localized surface plasmon resonance (LSPR) band was more prominent at 125 • C and disappeared at 150 • C temperature. The dielectric contribution in the overall dispersion of sample structure was maximum for 125 • C with dominating metallic contribution observed for 150 • C. Detailed investigation of 125 • C deposited GLAD-Ag sample revealed sharpening of the LSPR band with reduction in film thickness. The ultra-thin coating (∼5 nm) was found to be purely dielectric in nature with the most prominent LSPR band among the others. Overall, the substrate heating temperature of 125 • C was found to be the threshold for fabricating plasmonic GLAD-Ag films with the best result observed for the ultra-thin (∼5 nm) specimen.

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Section: Introductionmentioning

confidence: 99%