Glancing Angle Deposition of Silver Promoted by Pre‐Deposited Nanoparticles

Abstract

Glancing angle deposition (GLAD) on a smooth substrate has certain limitations, which may be overcome if nanoparticles are deposited first. This study compares the growth of silver columns on a smooth substrate and over pre‐deposited small copper (Ø16 nm) and big C:H plasma polymer nanoparticles (Ø110 nm). Cu nanoparticles help to the growth of the columns but their surface density does not play a major role. C:H nanoparticles ensure the growth of the column from each particle and therefore increased surface density of C:H nanoparticles results in an increased number of columns. In addition, the columns grow even at very small angles of incidence (40°). At high angles of incidence secondary columns start to grow on primary columns and also on the smooth substrate surface in between them.

Anisotropic Optical Response of Silver Nanorod Arrays: Surface Enhanced Raman Scattering Polarization and Angular Dependences Confronted with Ellipsometric Parameters

“…Fabrication of AgOADs was performed by low-pressure magnetron sputtering of a silver target onto Si wafer support using the procedure described in more detail in our previous work 39 . The deposition angle was 70° with respect to the surface normal, corresponding to nanocolumns tilted at an angle β around 55° as predicted by the Tait’s rule 40 .…”

Obliquely Deposited Gold Nanohelices on Lithography-Free Prepared Nanoseeded Surfaces

“…In this work, gold particles were distributed on a substrate surface by annealing an ultra-thin metal film. These particles offer shadowing effect and reduce the size of the gold helices that grow on them [ 16 , 17 ].…”

Challenges in the deposition of plasma polymer nanoparticles using gas aggregation source: Rebounding upon impact and how to land them on a substrate

“…[37,40,48] Polymer NPs produced by vacuum evaporation of polymers without plasma in the gas aggregation source were first synthesized two decades ago, [42] while plasma polymer NPs produced in a gas aggregation source either by plasma polymerization of gaseous monomers [41] or by sputtering of polymer targets [37,40] about a decade ago. Since then, a number of different systems and materials have been used to produce pp-NPs [37][38][39][40][49][50][51] or composite metal/plasma polymer NPs [49,[52][53][54] by means of plasma-based gas aggregation sources. While such pp-NPs are quite easy to produce and their formation is relatively insensitive to the purity of the process, the greatest and often overlooked challenge is to collect them on the substrate.…”