New Methods for Conjugated Materials Synthesis

We seek to develop new general and environmentally benign methods for a concise synthesis of conjugated materials using transition metal catalysis.  Such methods will enable rapid access to libraries of conjugated polymers and macromolecules with tailored properties and topologies for applications in the next-generation optoelectronic devices, bioimaging probes, and phototherapeutics.


 

Synthesis of 3D-Conjugated Covalent Organic Frameworks

Covalent organic frameworks (COFs) are promising layered materials for applications in semiconducting and charge storage devices.  We are developing new chemical methods for the synthesis of three-dimensionally conjugated COFs.  Potential applications of the 3D-conjugated COFs include solar cells with well-defined and morphologically stable active layers and high energy density batteries.  The development of these materials will also enable us to study the molecular organization effects on charge generation and transport processes in organic materials and at their interfaces.


 

New Catalysts for Precision Polymer Synthesis

Polymer molecular weight, polydispersity, and structure are some of the key factors affecting polymer properties and performance in devices.  However, there are no good methods to make conjugated alternating polymers with controlled molecular weights and low dispersity.  We work on developing novel polymerization catalysts that address this challenge.  New materials will be used to make functional devices and probes and to investigate fundamental effects of polymer properties on their performance.