Superior Visible Photoelectric Response with Au/Cu₂NiSnS₄ Core-Shell Nanocrystals.

ABSTRACT: The incorporation of plasmonic metal nanostructures into semiconducting chalcogenides in the form of core-shell structures provides a promising approach to enhancing the performance of photodetectors. In this study, we combined Au nanoparticles with newly developed copper-based chalcogenides Cu₂NiSnS₄ (Au/CNTS) to achieve an ultrahigh optoelectronic response in the visible regime. The high-quality Au/CNTS core-shell nanocrystals (NCs) were synthesized by developing a unique colloidal hot-injection method, which allowed for excellent control over sizes, shapes, and elemental compositions. The as-synthesized Au/CNTS hybrid core-shell NCs exhibited enhanced optical absorption, carrier extraction efficiency, and improved photosensing performance owing to the plasmonic-ind

SUBMITTER: Ghosh A 

PROVIDER: S-EPMC10921381 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature