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D. Greg Walker

Associate Professor of Mechanical Engineering
Associate Professor of Electrical Engineering


Our mission is to explore the physical effects of energy transport particularly in nanoscale structures to obtain a better understanding of the physical world that can lead to engineering discoveries in energy applications. Specifically, we focus on modeling nanoscale energy transport (phonons, electrons, and photons) in semiconductor devices designed for energy applications. This includes thermoelectric devices, solar cells, and batteries, for example. We also study fundamental artifacts of small-scale transport such as thermal rectification, interfacial conductance in nanostructured materials.

Selected Publications:

Displacement damage from particle radiation in yttrium borate phosphor doped with cerium(III) or europium(III). Gollub, SL; Harl, RR; Rogers, BR; Walker, DG, Journal of Luminescence, 148, 267-273 , (2013) View Abstract

Quantum simulation of thermionic emission from diamond films. Musho, TD; Paxton, WF; Davidson, JL; Walker, DG, JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 31, 021401 , (2013) View Abstract

Computational Study of Thermal Rectification From Nanostructured Interfaces. Roberts, NA; Walker, DG, JOURNAL OF HEAT TRANSFER, 133, 092401 , (2011) View Abstract

Review of electronic transport models for thermoelectric materials. Bulusu, A; Walker, DG, SUPERLATTICES AND MICROSTRUCTURES, 44, , (2008) View Abstract

Phonon production and nonequilibrium transport from ion strikes. Walker, DG; Weller, RA, IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 51, 3318-3323 , (2004) View Abstract