Rotoelectric Crystals with Fast Electro-Optic Response

Research supported by DARPA

with an Innovative Seed Grant from the University of Colorado

Introduction

Our approach to created fast electro-optic materials involves incorporating polar molecular rotors into known metal organic framework (MOF) structures.  MOF prototypes are available in a wide range of geometries, and some families of MOFs are known to tolerate extensive modification of the organic linker molecules.  We will incorporate the polar rotors through C-C or C-N triple bonds.   These bonds act as axles with low energy barriers for rotation of the rotor about the bond axis.  Preliminary numerical calculations on ground state configurations of polar rotors in various lattice geometries have guided our choice of prototype structures. Crystals of the proposed ‘rotoelectric’ materials will be grown by solvothermal methods, and will be characterized by x-ray crystallography, variable temperature dielectric spectroscopy, and variable temperature polarization microcopy under applied electric fields.

The project is a collaboration with Josef Michl (U. of Colorado).

More Information

See John Price's vita for a complete list of our publications

Current Participants

Jason Underwood, Graduate Student

Erick Winston, Graduate Student

John Price, Professor


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