Synthesis of hybrid nanomaterials using linear-dendritic copolymers
Ali Bahari, Mohsen Adeli, and Sonia Mohamad Hosseini – 2011
New types of hybrid nanomaterials consisting of CdSe and ZnS quantum dots were synthesized through noncovalent interactions. Polycitric acidpolyethylene glycolpolycitric acid linear-dendritic copolymers were synthesized and sonicated in the presence of amino-functionalized CdSe and ZnS quantum dots (QDs). Based on microscopy and spectroscopy investigations, it has been found that CdSe and ZnS QDs link together through linear-dendritic copolymers bridges. This strategy led to composites containing two types of QDs dispersed in a polymeric matrix. Optical properties of CdSe/ZnS hybrid nanomaterials depended on different factors that affect the noncovalent interactions between linear-dendritic copolymers and QDs.