Novel Characterization Methods for Anisotropic and Mixed-Conduction Materials
Abstract
As per the motivational statement of this grant proposal, state-of-the-art electronic and optoelectronic devices require electronic materials with specialized properties that cannot be characterized with standard methods, or that must be characterized with extra precision. New materials characterization methods have been developed under the three years of support of this grant. These new characterizations led to 3 patents and 8 refereed publications including 2 PRLs, with several additional works in submission. Students graduated with support of this grant include 5 PhDs and 1 MS. Collaborations in this work included international partners (Germany, Israel, and China), collaborations with industry (Teledyne), AFRL (Wright-Patterson), and other US universities (U. Michigan, Alabama U.). The newly developed characterization methods were: I. Carrier density gradient analysis method; II. Fourier-domain mobility spectral analysis; III. Heterodyne 4-point method for precision Hall effect; IV. Anisotropic conductor characterization; V. Heavy-tail transient analysis; VI. Disorder scaling in non-ohmic conductivity of 2D materials; and VII. Percolation model for electrical and thermal conductivity in disordered media.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 08, 2018
- Accession Number
- AD1062407
Entities
People
- Matthew Grayson
Organizations
- Northwestern University