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Tellurium (Te) is an intrinsically p-type doped narrow bandgap semiconductor with excellent electrical conductivity and low thermal conductivity. Bulk trigonal Te has been theoretically predicted and experimentally demonstrated to be an…

We show that a molecular junction can give large values of the thermoelectric figure of merit $ZT$, and so could be used as a solid state energy conversion device that operates close to the Carnot efficiency. The mechanism is similar to the…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Padraig Murphy , Subroto Mukerjee , Joel Moore

Focus of the chapter is on the theoretical approaches aimed to analyze thermoelectric properties at the nanoscale. We discuss several relevant theoretical approaches for different set-ups of nano-devices providing estimations of the…

Mesoscale and Nanoscale Physics · Physics 2020-07-06 Carmine Antonio Perroni , Giuliano Benenti

Nanocomposites are promising candidates for the next generation of thermoelectric materials since they exhibit extremely low thermal conductivities as a result of phonon scattering on the boundaries of the various material phases. The…

Mesoscale and Nanoscale Physics · Physics 2017-12-06 Samuel Foster , Mischa Thesberg , Neophytos Neophytou

The thermoelectric transport through a molecular bridge is discussed, with an emphasis on the effects of inelastic processes of the transport electrons caused by the coupling to the vibrational modes of the molecule. In particular it is…

Mesoscale and Nanoscale Physics · Physics 2015-03-17 O. Entin-Wohlman , Y. Imry , A. Aharony

Here we present a theoretical study of the thermoelectric transport through {[}2,2{]}para\-cyclo\-phane-based single-molecule junctions. Combining electronic and vibrational structures, obtained from density functional theory (DFT), with…

Mesoscale and Nanoscale Physics · Physics 2017-04-07 Marius Bürkle , Thomas J. Hellmuth , Fabian Pauly , Yoshihiro Asai

The thermoelectric properties of nanostructured silicon are not fully understood despite their initial promise. While the anomalously low thermal conductivity has attracted much work, the impact of nanostructuring on the power factor has…

Materials Science · Physics 2020-10-06 Jun Ma , Dhruv Gelda , Krishna V. Valavala , Sanjiv Sinha

We have studied thermoelectric effect of a Kane-Mele normal-insulator-superconductor (KMNIS) junction at ultra-low temperatures using a modified version of the well-known Blonder-Tinkham-Klapwijk (BTK) theory. Since both the (electronic)…

Mesoscale and Nanoscale Physics · Physics 2019-05-22 Priyadarshini Kapri , Saurabh Basu

Electromigrated nanoscale junctions have proven very useful for studying electronic transport at the single-molecule scale. However, confirming that conduction is through precisely the molecule of interest and not some contaminant or metal…

Mesoscale and Nanoscale Physics · Physics 2008-09-04 D. R. Ward , G. D. Scott , Z. K. Keane , N. J. Halas , D. Natelson

A three-terminal thermoelectric device based on a $p$-$i$-$n$ semiconductor junction is proposed, where the intrinsic region is mounted onto a, typically bosonic, thermal terminal. Remarkably, the figure of merit of the device is governed…

Mesoscale and Nanoscale Physics · Physics 2013-07-25 Jian-Hua Jiang , Ora Entin-Wohlman , Yoseph Imry

The paper describes preliminary investigations of a new effect in conducting anisotropic liquids, which leads to thermoelectric conversion of energy. Nematic liquid crystals with semiconducting dopes are used. A thermoelectric figure of…

Soft Condensed Matter · Physics 2013-08-02 Sergey I. Trashkeev , Alexey N. Kudryavtsev

Motivated by the recent development of fast and ultra-sensitive thermometry in nanoscale systems, we investigate quantum calorimetric detection of individual heat pulses in the sub-meV energy range. We propose a hybrid superconducting…

Mesoscale and Nanoscale Physics · Physics 2018-11-28 F. Brange , P. Samuelsson , B. Karimi , J. P. Pekola

Embedding nanostructures within a bulk matrix is an important practical approach towards the electronic engineering of high performance thermoelectric systems. For power generation applications, it ideally combines the efficiency benefit…

Mesoscale and Nanoscale Physics · Physics 2015-10-12 Aniket Singha , Subhendra D. Mahanti , Bhaskaran Muralidharan

This study introduces the theory of a microcalorimeter based on phonon-blocked superconducting tunnel junctions, integrating on-chip electron cooling and boundary resistance phonon isolation to achieve exceptional energy resolution and…

Instrumentation and Detectors · Physics 2026-03-31 Zhuoran Geng , Joel Hätinen , Emma Mykkänen , Mika Prunnila , Ilari J. Maasilta

Quantum dots (QDs) can serve as near perfect energy filters and are therefore of significant interest for the study of thermoelectric energy conversion close to thermodynamic efficiency limits. Indeed, recent experiments in [Nat. Nano. 13,…

Mesoscale and Nanoscale Physics · Physics 2019-07-08 Martin Josefsson , Artis Svilans , Heiner Linke , Martin Leijnse

We present an original method to estimate the conductivity of a single molecule anchored to nanometric-sized metallic electrodes, using a Mechanically Controlled Break Junction (MCBJ) operated at room temperature in liquid. We record the…

Mesoscale and Nanoscale Physics · Physics 2018-03-16 M. Gil , T. Malinowski , M. Iazykov , H. Klein

Materials capable of highly efficient, direct thermal-to-electric energy conversion would have substantial economic potential. Theory predicts that thermoelectric efficiencies approaching the Carnot limit can be achieved at low temperatures…

Materials Science · Physics 2009-11-11 M. F. O'Dwyer , T. E. Humphrey , H. Linke

The thermal performance of high heat flux components in a fusion reactor could be enhanced significantly by the use of nanofluid coolants, suspensions of a liquid with low concentrations of solid nanoparticles. However, before they are…

Instrumentation and Detectors · Physics 2013-11-21 T R Barrett , S Robinson , K Flinders , A Sergis , Y Hardalupas

A superconducting tunnel junction is used to directly extract quasiparticles from one of the leads of a single-Cooper-pair-transistor. The consequent reduction in quasiparticle density causes a lower rate of quasiparticle tunneling onto the…

Superconductivity · Physics 2012-09-18 A. J. Ferguson

We report the first concurrent determination of conductance (G) and thermopower (S) of single-molecule junctions via direct measurement of electrical and thermoelectric currents using a scanning tunneling microscope-based break-junction…

Mesoscale and Nanoscale Physics · Physics 2012-01-10 J. R. Widawsky , P. Darancet , J. B. Neaton , L. Venkataraman