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Low Temperature Enhancement of the Thermoelectric Seebeck Coefficient in Semiconductor Nanoribbons
09 Nov 2016 | Online Presentations | Contributor(s): Kommini Adithya, Zlatan Aksamija
IWCE 2015 Presentation. We propose a novel approach to achieving a narrow window-shaped TDF through a combination of a step-like 2-dimensional density-of-states (DOS) and inelastic optical phonon scattering. A shift in the onset of scattering with respect to the step-like DOS creates a TDF which...
Thermal Conductivity of III-V Semiconductor Superlattices
25 Jan 2016 | Online Presentations | Contributor(s): Song Mei, Zlatan Aksamija, Irena Knezevic
IWCE 2015 presentation. An InGaAs/InAlAs superlattice (SL) on an InP substrate is the mainstream material system for mid- IR quantum cascade lasers (QCL). The thermal conductivity tensor of SLs is critical for energy-efficient performance of QCLs; understanding the relative importance of...