A thin-film broadband perfect absorber based on plasmonic copper nanoparticles

Gas-phase synthesis of nanoparticles: current application challenges and instrumentation development responses

“…For instance, Kumar et al fabricated size-selected Pd nanoportals on underlying Mg films and, having used Density Functional Theory (DFT) calculations for the proof-of-concept, investigated the hydrogen flux through the nanoportals 42 (the same simple concept was utilised later for single-nanoparticle electrochemistry 43 ). Second, tailoring optical properties via the integration of nanoparticles was proposed for solar thermal collectors, which promise >90% light energy absorption, 44 as well as perovskite- 45 and silicon- 46 based solar cells. These demonstrations showcase how the high degree of deposition parameter control during nanoparticle inert-gas condensation can be utilised for fine-tuning plasmonic absorption properties.…”

A novel method for the synthesis of core–shell nanoparticles for functional applications based on long-term confinement in a radio frequency plasma

“…These properties gave rise to various fields of applications such as photocatalysis [1][2][3][4][5] , optics 6 , resistive switching [7][8][9][10][11][12][13] , and sensors [14][15][16][17][18] . The op-tical properties originating from the presence of localized surface plasmons 19 open up applications in the fields of, e.g., surfaceenhanced Raman spectroscopy 20 , solar cells 21 , and absorber layers for solar thermal collectors 22 . Furthermore, noble metal NPs and especially Ag NPs show antibacterial properties because their high surface-to-volume ratio enables fast ion release 23 .…”

“…[14][15][16][17][18] The optical properties originating from the presence of localized surface plasmons 19 open up applications in the elds of, e.g., surface-enhanced Raman spectroscopy, 20 solar cells, 21 and absorber layers for solar thermal collectors. 22 Furthermore, noble metal NPs and especially Ag NPs show antibacterial properties because their high surface-to-volume ratio enables fast ion release. 23 Fine control over the ion release rate of Ag NPs is of high importance for applications like antibacterial coatings in medicine, construction industry, clothing, or food packaging.…”

Co‐sputtering of A Thin Film Broadband Absorber Based on Self‐Organized Plasmonic Cu Nanoparticles

“…[16,17] Metal-dielectric composite coatings employ plasmonic nanoparticles (NPs), which show, in general, strong absorption from ultra-violet (UV) to near-infrared (NIR) wavelengths. [18,19] The absorber consists of multiple layers, i.e., a metallic ground plate, a dielectric spacer, and a nanocomposite layer containing NPs in a dielectric matrix. In these structures, perfect absorption can be achieved because of the destructive interference of reflected light at the air to absorber interface and the light reflected multiple times in the cavity of the multilayer systems.…”

“…The materials considered in metal-dielectric composite absorbers are, e.g., Cu and Au in a SiO 2 matrix or W, [18,21,22] TiN, [23] Ag, [24] and Cu in an Al 2 O 3 matrix. [3,19,25] In order to enhance the thermal stability of metal-dielectric composite coatings, additional metal, metal oxide or metal nitride thin films have been investigated as diffusion barriers. [26] Considering the abundance and availability of its components, in particular, metal-dielectric composite absorbers based on inexpensive materials such as Cu-NPs and SiO 2 or Al 2 O 3 matrices are promising.…”