Ankit Pokhrel

Graduate Student, Physical Chemistry
Department of Chemistry
University of Wisconsin-Madison

apokhrel@chem.wisc.edu

 

Biographical Sketch

B.A., Wesleyan College, Chemistry 2010
PhD University of Wisconsin-Madison, 2010-present

 

Research

In my current work, I synthesize nanostructured Higher Manganese Silicide(HMS) in bulk for practical applications.  We have previously shown that the free-standing 1D-nanostructures can be successfully synthesized using chemical vapor deposition (CVD) of a single source precursor and that the thermal conductivity of these nanostructures are suppressed from the already low bulk HMS value of 2-4 W/m-K to a value approaching 1 W/m-K and the amorphous limit.  However, the demand for large amount of TE material limits the use of nanowires and nanorods in devices.  I use both solid state and solution based synthesis approaches to prepare nanostructured HMS in bulk.  Such bulk nanomaterials, after a densification step, would have improved electrical conductivity, which, in combination with reduced thermal conductivity, would lead to improved TE performance.