Single-step noninjection synthesis of highly luminescent water soluble Cu+ doped CdS quantum dots: application as bio-imaging agents

Novel highly luminescent Cu+ doped CdS quantum dots (QDs) were directly synthesized in aqueous phase through a facile single-step noninjection method. Due to their bright red fluorescence, ultrasmall size, and good biocompatibility, as-prepared CdS:Cu+ QDs have potential as probes in bio-imaging.