Tuning the thermoelectric response of silicene nanoribbons with vacancies.

08:00 EDT 10th March 2020 | BioPortfolio

Summary of "Tuning the thermoelectric response of silicene nanoribbons with vacancies."

In this work, we present a thorough study of the thermoelectric properties of silicene nanoribbons in the presence of a random distribution of atomic vacancies. By using a linear approach within the Landauer formalism, we calculate phonon and electron thermal conductances, the electric conductance, the Seebeck coefficient and the figure of merit of the nanoribbons. We found a sizable reduction of the phonon thermal conductance as a function of the vacancy concentration over a wide range of temperature. At the same time, the electric properties are not severely deteriorated, leading to an overall remarkable thermoelectric efficiency. We conclude that the incorporation of vacancies paves the way to designing better and more efficient nanoscale thermoelectric devices.


Journal Details

This article was published in the following journal.

Name: Journal of physics. Condensed matter : an Institute of Physics journal
ISSN: 1361-648X


DeepDyve research library

PubMed Articles [8298 Associated PubMed Articles listed on BioPortfolio]

Thermoelectric Penta-Silicene with a High Room-Temperature Figure of Merit.

Silicon is one of the most frequently used chemical elements of the periodic table in nanotechnology. Two-dimensional (2D) silicene, a silicon analog of graphene, has been readily obtained to make fie...

Manipulating the Ge Vacancies and Ge Precipitates through Cr Doping for Realizing the High-Performance GeTe Thermoelectric Material.

GeTe alloy is a promising medium-temperature thermoelectric material but with highly intrinsic hole carrier concentration by thermodynamics, making this system to be intrinsically off-stoichiometric w...

Ultra-low lattice thermal conductivity of monolayer penta-silicene and penta-germanene.

We study the lattice thermal conductivity of two-dimensional (2D) pentagonal systems, such as penta-silicene and penta-germanene. Penta-silicene has been recently reported, while the stable penta-germ...

Structures, Mobilities, and Electronic Properties of Functionalized Silicene: Superhalogen BO Adsorption.

The narrow band gap of silicene severely hinders its application in nanoelectronic devices. Therefore, it is significant to open the band gap of silicene and maintain its high carrier mobility. And fo...

Deviation from guest dominated glass like lattice dynamics in prototypical ternary Ba8NixGe46-x-yy clathrates.

Intermetallic guest filled clathrate cages have been identified as promising materials for thermoelectric applications. The structure, electronic structure, and phonon dynamics of type-I ternary clath...

Clinical Trials [3289 Associated Clinical Trials listed on BioPortfolio]

Tuning in to Kids in Norwegian FUS Kindergartens

The proposed project will aim to evaluate the impact of the Tuning in to Kids program for teachers using a randomised controlled research design with 48 kindergartens across Norway (Oslo, ...

Tuned Versus Untuned Ankle-foot Orthoses in Children and Adolescents With Cerebral Palsy

Cerebral palsy (CP) in children and adolescents is frequently accompanied by gait abnormalities. Ankle-foot orthoses (AFO) have been suggested to improve the gait pattern. Compared to conv...

Small Children, Big Emotions

The study is a randomized controlled trial evaluating the clinical and cost-effectiveness of Tuning in to Kids (TIK) compared to treatment as usual (TAU). Participants are recruited among ...

Feasibility Study for Electroacupuncture for Chemotherapy- Induced Peripheral Neuropathy (CIPN)

The purpose of the study is to determine the validity of a point-of-care nerve conduction device (NeuroMetrix) and Rydel-Seiffer tuning fork in assessing the level of peripheral neuropathy...

Comparison of Efficacy Between Suggestion Method During Video EEG Recording by Verbal Suggestion in Isolation and Verbal Suggestion Along With Cotton Swab or Tuning Fork for Inducing the Paroxysmal Event in Children Aged 5 to 18 Years With Suspected Psych

In this study we are going to compare efficacy between suggestion method during video EEG recording by verbal suggestion in isolation and verbal suggestion along with cotton swab or tuning...

Medical and Biotech [MESH] Definitions

A form of electrophysiologic audiometry in which an analog computer is included in the circuit to average out ongoing or spontaneous brain wave activity. A characteristic pattern of response to a sound stimulus may then become evident. Evoked response audiometry is known also as electric response audiometry.

A scale that assesses the response to stimuli in patients with craniocerebral injuries. The parameters are eye opening, motor response, and verbal response.

A cellular response to environmental insults that cause disruptions in PROTEIN FOLDING and/or accumulation of defectively folded protein in the ENDOPLASMIC RETICULUM. It consists of a group of regulatory cascades that are triggered as a response to altered levels of calcium and/or the redox state of the endoplasmic reticulum. Persistent activation of the unfolded protein response leads to the induction of APOPTOSIS.

Behavioral response associated with the achieving of gratification.

An induced response to threatening stimuli characterized by complete loss of muscle strength.

Quick Search

DeepDyve research library

Searches Linking to this Article