Au–Cu nanoparticles in silica glass as composite material for photonic applications

Electrocatalytic glucose oxidation at bimetallic gold–copper nanoparticle-modified carbon electrodes in alkaline solution

“…DT-Au nano and DT-Cu nano nanoparticles showed weak SP resonance absorption peaks at ca. 520 and 580 nm, respectively, which were in good agreement with those previously reported for similar particle sizes [25,26,[35][36][37][38]. DT-Au 97 Cu 3 also showed a SP resonance absorption peak at ca.…”

“…The average core sizes of the DT-Au nano , DT-Au 97 Cu 3 , and DTCu nano nanoparticles were determined to be 2 (±1), 2 (±1), and 4 (±2) nm, respectively. Both Au and Cu nanoparticles have surface plasmon (SP) resonance absorption bands in the visible region [32][33][34][35][36][37][38]. The SP resonance bands are strongly dependent on the size, shape, composition, and dielectric properties of the nanoparticles and their local environment.…”

Photostimulated optical effects and some related features of CuO mixed Li2O–Nb2O5–ZrO2–SiO2 glass ceramics

“…It is known that the valence state in copper affects not only optical, chemical, electrical and mechanical properties but also the glass-forming ability of the system [16,17]. Due to the crystallization, there is a possibility for the formation of copper nanoclusters in glasses; such nano crystals are expected to exhibit absorption bands at characteristic surface plasma resonance in the visible region and optical nonlinearity [18][19][20].…”

Enhancement of nonlinear optical properties of compounds of silica glass and metallic nanoparticle

“…The nonlinear optical properties depend on the size of metallic nanoparticles (MNPs) [16,17]. Flytzanis et al have carried out a series of investigations on nonlinear mixing signals produced by a colloidal medium [12,[18][19][20][21].…”