Kocherga, Margaret

Development of hexacoordinate silicon complexes to be used in OLEDs and spintronics technology

Organic light emitting diodes, and spintronics are popular technologies that are widely used
in modern life. There are still many issues with device performance, cost, and safety.
Hexacoordinate silicon complexes based on dianionic pincer ligands are great candidates
for luminescent and electronic applications. Wide variety of pincer ligands provides
tailorability of the electronic properties, while the hexacoordinate silicon center enforces a
rigid planar environment that improves luminescence properties. As an example of such
compounds Si(bzimpy-2H)2 was synthesized, and fully characterized. It is stable in air and
exhibits fluorescence properties in solution and solid state, thus allowing device assembly
and testing to be pursued. However, this compound has poor solubility in most solvents,
which creates challenges. The methylated analog, is under development and appears to be
more soluble, while still fluorescent. Si(bzimpy-2H)2 was a suitable probe to test predicted
properties, and serve as a guide for the future of this project.

Previous degree: 
B.S. Chemistry, UNC Charlotte
Kocherga, Margaret