Search Results - "Dames, Chris"
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Ultrahigh thermal conductivity confirmed in boron arsenide
Published in Science (American Association for the Advancement of Science) (10-08-2018)“…High-quality crystals minimize conductivity losses caused by phonon scattering at defects Few materials possess ultrahigh thermal conductivity κ at room…”
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2
Mean free path spectra as a tool to understand thermal conductivity in bulk and nanostructures
Published in Physical review. B, Condensed matter and materials physics (31-01-2013)“…A rigorous derivation is given for the thermal conductivity accumulation function and mean free path (MFP) spectrum of an isotropic bulk material. The key…”
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3
Thermal Boundary Conductance: A Materials Science Perspective
Published in Annual review of materials research (01-07-2016)“…The thermal boundary conductance (TBC) of materials pairs in atomically intimate contact is reviewed as a practical guide for materials scientists. First,…”
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4
Effective phonon mean free path in polycrystalline nanostructures
Published in Applied physics letters (27-04-2015)“…We have calculated the mean free path (MFP) of phonons associated with grain boundary scattering in polycrystalline nanostructures, by developing a Monte Carlo…”
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5
Material and manufacturing cost considerations for thermoelectrics
Published in Renewable & sustainable energy reviews (01-04-2014)“…Interest in thermoelectrics for waste-heat recovery and localized cooling has flourished in recent years, but questions about cost and scalability remain…”
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6
Anomalously low electronic thermal conductivity in metallic vanadium dioxide
Published in Science (American Association for the Advancement of Science) (27-01-2017)“…In electrically conductive solids, the Wiedemann-Franz law requires the electronic contribution to thermal conductivity to be proportional to electrical…”
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7
Advances in Thermal Conductivity
Published in Annual review of materials research (04-08-2012)“…This review discusses recent advances in materials engineering to control thermal conductivity. We begin by presenting theories of heat conduction for general…”
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8
Double-negative-index ceramic aerogels for thermal superinsulation
Published in Science (American Association for the Advancement of Science) (15-02-2019)“…Ceramic aerogels are attractive for thermal insulation but plagued by poor mechanical stability and degradation under thermal shock. In this study, we designed…”
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9
Thickness-Dependent Thermal Conductivity of Encased Graphene and Ultrathin Graphite
Published in Nano letters (13-10-2010)“…The thermal conductivity of graphene and ultrathin graphite (thickness from 1 to ∼20 layers) encased within silicon dioxide was measured using a heat spreader…”
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10
Controlled ripple texturing of suspended graphene and ultrathin graphite membranes
Published in Nature nanotechnology (01-09-2009)“…Graphene is nature's thinnest elastic material and displays exceptional mechanical 1 , 2 and electronic properties 3 , 4 , 5 . Ripples are an intrinsic feature…”
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11
Thermal Conductivity of Nanocrystalline Silicon: Importance of Grain Size and Frequency-Dependent Mean Free Paths
Published in Nano letters (08-06-2011)“…The thermal conductivity reduction due to grain boundary scattering is widely interpreted using a scattering length assumed equal to the grain size and…”
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12
Integrated cooling (i-Cool) textile of heat conduction and sweat transportation for personal perspiration management
Published in Nature communications (21-10-2021)“…Perspiration evaporation plays an indispensable role in human body heat dissipation. However, conventional textiles tend to focus on sweat removal and pay…”
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13
Investigation of phonon coherence and backscattering using silicon nanomeshes
Published in Nature communications (04-01-2017)“…Phonons can display both wave-like and particle-like behaviour during thermal transport. While thermal transport in silicon nanomeshes has been previously…”
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14
Apparent self-heating of individual upconverting nanoparticle thermometers
Published in Nature communications (21-11-2018)“…Individual luminescent nanoparticles enable thermometry with sub-diffraction limited spatial resolution, but potential self-heating effects from high…”
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15
Extreme fast charging of commercial Li-ion batteries via combined thermal switching and self-heating approaches
Published in Nature communications (03-06-2023)“…The mass adoption of electric vehicles is hindered by the inadequate extreme fast charging (XFC) performance (i.e., less than 15 min charging time to reach 80%…”
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16
New approach to waste-heat energy harvesting: pyroelectric energy conversion
Published in NPG Asia materials (07-06-2019)“…Harvesting waste heat for useful purposes is an essential component of improving the efficiency of primary energy utilization. Today, approaches such as…”
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17
Adapting the Electron Beam from SEM as a Quantitative Heating Source for Nanoscale Thermal Metrology
Published in Nano letters (13-05-2020)“…The electron beam (e-beam) in the scanning electron microscopy (SEM) provides an appealing mobile heating source for thermal metrology with spatial resolution…”
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18
Understanding the Role of Ferroelastic Domains on the Pyroelectric and Electrocaloric Effects in Ferroelectric Thin Films
Published in Advanced materials (Weinheim) (01-02-2019)“…Temperature‐ and electric‐field‐induced structural transitions in a polydomain ferroelectric can have profound effects on its electrothermal susceptibilities…”
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Simultaneous Enhancement of Electrical Conductivity and Thermopower of Bi2Te3 by Multifunctionality of Native Defects
Published in Advanced materials (Weinheim) (24-06-2015)“…Simultaneous increases in electrical conductivity (up to 200%) and thermopower (up to 70%) are demonstrated by introducing native defects in Bi2Te3 films,…”
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20
Raman Spectroscopy of Ripple Formation in Suspended Graphene
Published in Nano letters (09-12-2009)“…Using Raman spectroscopy, we measure the optical phonon energies of suspended graphene before, during, and after thermal cycling between 300 and 700 K. After…”
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