Hydrothermal synthesis of water-soluble Mn- and Cu-doped CdSe quantum dots with multi-shell structures and their photoluminescence properties

Abstract

The core/shell/shell QD structure with doping in the shell layer is a versatile method for synthesizing doped QDs.

Copper-Modified Double-Emission Carbon Dots for Rapid Detection of Thiophanate Methyl in Food

“…Compared with the commonly used nonmetallic modification methods, changing the electronic structure of CDs to provide more active sites is easier, for they have more electrons and vacant orbitals. By introducing transition metal modification, the electronic structure and optical properties of CDs can be adjusted, which greatly expands the application of CDs in catalysis, electricity conduction and so on [ 22 , 23 , 24 ]. Although transition metals with modified CDs show fluorescent stability, such as cadmium (Cd), tellurium (Te), silver (Ag), selenium (Se) and cobalt (Co), they have low biological compatibility that has limited their application [ 25 ].…”

An overview into advantages and applications of conventional and unconventional hydro(solvo)thermal approaches for novel advanced materials design

“…Particularly, the first studies involving this core-shell system date back to the early 1990s. However, currently this field of research is highly diverse leading to obtained the different configurations, including multi-shells, yolk/shell and among others [460][461][462][463]. In this case, it is well known that the formation of the core is due to the precursor, prioritizing the function of the target nanoparticle.…”

Solution-grown millimeter-scale Mn-doped CsPbBr3/Cs4PbBr6 crystals with enhanced photoluminescence and stability for light-emitting applications

“…Doping impurity ions into crystals has proven to be an effective way to enhance the environmental stability and adjust the optoelectronic properties of conventional colloidal II-VI and III-V semiconductor materials, 30 which also happens to perovskite NCs. For instance, Zou et al reported that doping Mn 2+ ions into the CsPbBr 3 NCs can stabilize the exciton emission and improve the thermal stability.…”