...Dhruv Singh; Jayathi Y. Murthy; Timothy S. Fisher Phonon transport across constrictions formed by a nanowire or a nanoparticle on a substrate is studied by a numerical solution of the gray Boltzmann transport equation (BTE) resolving the effects of two length scales that govern problems...

...Nathan Swami; Zhanwu Cui; Lakshmi S. Nair Nanostructured one dimensional titanium oxides such as nanotubes and nanowires have raised interest lately due to their unique electronic and optical properties. These materials also have shown significant potential as biomaterials because of their ability...

...F. X. Alvarez; D. Jou; A. Sellitto By using a phonon hydrodynamics model for heat flow complemented with boundary conditions for smooth or rough boundaries, we study the influence of boundary conditions on the longitudinal thermal conductivity for several kinds of nanowires (single, tubular...

... silicon thin films and along silicon nanowires of widths greater than 22 nm . This study confirms that the dispersion curves and relaxation times of bulk silicon are not appropriate to model phonon propagation along silicon nanowires of 22 nm width. 12 02 2007 04 06 2007 20 05 2008...

...Andrew Miner The compatibility of low-dimensional thermoelectric materials in forms such as thin films and nanowires for use in thermoelectric coolers is examined. First-order thermoelectric theory predicts that the cold and hot junction temperatures of a thermoelectric circuit are governed solely...

...Satish Kumar; Muhammad A. Alam; Jayathi Y. Murthy Thermal and electrical transport in a new class of nanocomposites composed of random isotropic two-dimensional ensembles of nanotubes or nanowires in a substrate (host matrix) is considered for use in the channel region of thin-film transistors...

...V. Bahadur, Student Mem. ASME; J. Xu, Student Mem. ASME; Y. Liu, Student Mem. ASME; T. S. Fisher, Mem. ASME This paper employs continuum principles combined with van der Waals theory to estimate the thermal contact resistance between nanowires and planar substrates. This resistance is modeled using...

...Yunfei Chen; Deyu Li; Jennifer R. Lukes; Arun Majumdar Monte Carlo simulation is applied to investigate phonon transport in single crystalline Si nanowires. Phonon-phonon normal ( N ) and Umklapp ( U ) scattering processes are modeled with a genetic algorithm to satisfy energy and momentum...

... the characteristic length of the structure approaches the phonon wavelength, and other interesting phenomena such as dispersion relation modification and quantum confinement may arise and further alter the thermal transport. In this paper we discuss phonon transport in semiconductor superlattices and nanowires...