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The mechanism for phonon scattering by nanostructures and by point defects in nanostructured silicon (Si) and the silicon germanium (Ge) alloy and their thermoelectric properties are investigated. We found that the thermal conductivity is reduced by a factor of 10 in nanostructured Si in comparison with bulk crystalline Si. However, nanosize interfaces are(More)
Citation Minnich, A. J. et al. " Modeling study of thermoelectric SiGe nanocomposites. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story(More)
Optical limiting properties and ultrafast dynamics of six-branched styryl derivatives based on 1,3,5-triazine Efficient ultrafast optical limiting using single walled carbon nanotubes functionalized noncovalently with free base and metalloporphyrins Time-resolved imaging of laser-induced refractive index changes in transparent media Rev. Enhanced sensing(More)
Due to the complexity and asymmetrical illumination, some images are difficult to be effectively segmented by some routine method. In this paper, an algorithm based on multi-level features is designed and proposed, and which can be used for target extraction from the images with more noises, interference, uneven illumination and changeable scene. The(More)
Reliable numerical simulation of failure is important for the design and planning of new solids and structures, as well as for the safety assessment of existing ones. In the past two decades, gradient and non-local models for regularizing loss of ellipticity due to material failure using non-standard finite element method and more recently the meshfree(More)
Photoluminescence microscopy of as-grown individual single-walled carbon nanotubes on Si/SiO 2 substrates, phys. separation studies of single walled carbon nanotube dispersions, phys. stat. sol. The mechanism of cavitation-induced scission of single-walled carbon nanotubes, Photoluminescence microscopy of carbon nanotubes grown by chemical vapor deposition:(More)
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