Decoration of WS2 Nanotubes and Fullerene-Like MoS2 with Gold Nanoparticlesстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 12 марта 2014 г.
Аннотация:A new technique of gold nanoparticle (AuNP) growth on sidewalls of WS2 inorganic nanotubes (INT-WS2) and the surface of MoS2 fullerene-like nanoparticles (IF-MoS2) is developed to produce metal - semiconductor nanocomposites. The coverage density and the mean size of the nanoparticles is dependent on the HAuCl4 / MS2 (M = W, Mo) molar ratio. The AuNPs formation mechanism seems to involve spatially - divided reactions of AuCl4- reduction and WS2/MoS2 oxidation taking place on the surface defects of the disulfide nanostructures rather than directly at the AuNP-IF / INT interface. A strong epitaxial matching between the lattices of the gold nanoparticles and the INT-WS2 or IF-MoS2 seems to suppress plasmon resonance in the nanocomposites with small (<10 nm mean size) AuNPs.