Heteronanotrimers by Selective Photodeposition of Gold Nanodots on Janus-Type Cu_2‒ _xS/CuInS₂ Heteronanocrystals.

ABSTRACT: This study focuses on the development of environmentally friendly Au-Cu_2-xS/CuInS₂ heteronanotrimers. The chosen strategy relies on the laser photodeposition of a single gold nanodot (ND) onto Janus Cu_{2- x}S/CuInS₂ heteronanocrystals (HNCs). This method offers precise control over the number, location, and size (5 to 8 nm) of the Au NDs by adjusting laser power for the career production, concentration of hole scavenger for charge equilibration in redox reactions, and gold precursor concentration, and exposure time for the final ND size. The photoreduction of gold ions onto HNCs starts systematically at the Cu_{2- x}S tip. The Au deposition then depends on the CuInS₂ segment length. For short HNCs, stable Au

SUBMITTER: Zhao F 

PROVIDER: S-EPMC11618745 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature