Thermoelectric Applications of Low-Dimensional Carbon Nanostructures with Acoustically Mismatched Boundaries. Issue 204 (2nd January 2020)

• Record Type: Journal Article
• Authors: Poddar, P.
• Is Part Of: Integrated ferroelectrics. Issue 204(2020)
• Page Start: 1
• Page End: 10
• Publication Date: 2020-01-02
• Subjects: Phonon dispersion -- acoustical impedance -- acoustic mismatch -- Rytov's model -- spatial confinement; Ferroelectric devices -- Periodicals; Integrated circuits -- Periodicals; 537.244805
• DOI: 10.1080/10584587.2019.1674970
• Languages: English
• ISSNs: 1058-4587

Abstract

Abstract: Thermoelectric applications of low-dimensional carbon nanostructures offer new ways to manipulate the electron and phonon properties of a given material. High-resolution Raman spectroscopy of ultra-thin silicon-on-insulator structures reveals multiple peaks in the spectral range from 50 cm −1 to 160 cm −1 . The peak positions are consistent with the theoretical predictions and indicate the confined nature of phonon-transport in thin films and superlattices with a finite acoustic mismatch between layers. This opens up a novel turning capability for optimization of the thermoelectric properties of low-dimensional structures.