Synthesis of dot in rod semiconductor heterostructures for the engineering of nanocrystals optical properties

This paper focuses on a preliminary study based two-steps approach to produce complex core/multiple shell architectures, such as “dots-in-rods” (DRs), be exploited color down-conversion filters for display manufacturing. Core/shell CdSe/CdS DRs are prepared by using conventional fast hot injection reaction method grow CdS layers onto CdSe QDs cores. Then, the engineered growing an additional coated oleate (OA) molecules, thus producing CdSe/CdS@CdS/OA DRs. further hybrid is synthesized means of seeded-growth approach, consisting controlled TOP-S and cadmium (Cd(OA)2) sulfur precursors, respectively. As assessed transmission electron microscopy (TEM) UV-Vis absorption photoluminescence (PL) spectroscopies analyses, feasibility control amount precursors allows modulate thickness shells therefore morphological optical properties final heterostructures. The introduction grafted specific organic ligand improves solubility in polymeric matrices. condition crucial nanocomposite films that can integrated manufacturing applications. Moreover, capability nanostructures convert blue light red wavelengths with remarkable quantum yields (PLQY) makes produced materials ideal candidates variety optoelectronic applications, particularly fabrication filters.