Organic-inorganic nanohybrids through the direct tailoring of semiconductor nanocrystals with conjugated polymers.
Two main synthetic strategies are used to prepare conjugated oligomer- or polymer-nanocrystal nanohybrids. In the first strategy ligand exchange is invoked to either replace with a bifunctional ligand, which contains a second functional group for coupling with conjugated oligomers or polymers (COs or CPs), or exchange for the functionalized COs or CPs in a "grafting-onto" process. Alternatively, in the second strategy the nanocrystal (NC) is passivated with functional ligands from which COs or CPs are directly grown in the absence of ligand exchange. The well-defined interface between the COs or CPs and NCs facilitates an efficient charge-transfer between them.
Lin
Zhiqun
Z
Department of Materials Science and Engineering, Iowa State University, Ames, IA 50011, USA. zqlin@iastate.edu