Adithya defends his dissertation. Congratulations Dr. Kommini!

Adithya defended his dissertation titled “TOWARDS HIGHER POWER FACTOR IN SEMICONDUCTOR THERMOELECTRICS: BANDSTRUCTURE ENGINEERING AND POTENTIAL BARRIERS,” which has led to a number of discoveries and papers, including our recent work on “Very high thermoelectric power factor near magic angle in twisted bilayer graphene,” now on arXiv:

Adithya’s work on Winger transport in 2D thermoelectrics published in Phys. Rev. Applied

In this work, we show that the thermoelectric power factor in 2D materials can be dramatically improved by adding periodic potential barriers, such as those depicted schematically in the image above. We find the optimal barrier configuration (height, width, and shape) for transport parallel and perpendicular to the barriers.

Arnab wins Outstanding TA award

Arnab K. Majee was selected as an Outstanding Teaching Assistant for his work with the Spring 2020 offering of ECE244: Modern Physics and Semiconductors for EEs. The award was announced at the annual ECE departmental ceremony, held virtually in May 2020, by the department head C. V. Hollot.

Great work, Arnab!

NETlab receives NSF CDS&E grant

Our lab has been awarded a three-year Computational and Data-enabled Science and Engineering (CDS&E) grant from the National Science Foundation to study thermal transport across interfaces between 2D materials and 3D substrates. Using first-principles methods, we will identify 2D-3D materials pairings that lead to better heat removal, enabling faster and higher-performance 2D nanoelectronics. For more info:

Discovering better 2D thermoelectrics

Here is our newest article, just accepted in the new open-access Journal of Physics: Materials, in which we identify materials properties that will lead to higher thermoelectric power factors in two-dimensional materials. This work will help researchers discover new 2D TEs in the future:

Schematic of the role of inelastic scattering in enhancing thermoelectric properties in 2D materials.