Enhanced thermoelectric figure of merit in edge disordered zigzag graphene nanoribbons

Abstract

We investigate electron and phonon transport through edge disordered zigzag graphene nanoribbons based on the same methodological tool of nonequilibrium Green functions. We show that edge disorder dramatically reduces phonon thermal transport while being only weakly detrimental to electronic conduction. The behavior of the electronic and phononic elastic mean free paths points to the possibility of realizing an electron-crystal coexisting with a phonon-glass. The calculated thermoelectric figure of merit (ZT) values qualify zigzag graphene nanoribbons as a very promising material for thermoelectric applications.

4 pages, 4 figures

References in corpus (11)

• Electric Field Effect in Atomically Thin Carbon Films
• The electronic properties of graphene
• Graphene: Status and Prospects
• Energy Gaps in Graphene Nanoribbons
• Thermoelectric and Magnetothermoelectric Transport Measurements of Graphene
• Charge Transport in Disordered Graphene-Based Low Dimensional Materials
• Conductance quantization and transport gap in disordered graphene nanoribbons
• Room-temperature ballistic transport in narrow graphene strips
• Superlattice Structures of Graphene based Nanoribbons
• Vibrational modes and low-temperature thermal properties of graphene and carbon nanotubes: A minimal force-constant model
• Coherent phonon scattering effects on thermal transport in thin semiconductor nanowires

Cited by in corpus (46)

• Thermal Properties of Graphene, Carbon Nanotubes and Nanostructured Carbon Materials
• Thermal properties of graphene: Fundamentals and applications
• Thermal and Thermoelectric Properties of Graphene
• Unusual Scaling Laws of the Band Gap and Optical Absorption of Phosphorene Nanoribbons
• Physical properties and device applications of graphene oxide
• Graphene: Piecing it together
• Thermoelectric properties of finite graphene antidot lattices
• First-principles study of heat transport properties of graphene nanoribbons
• Thermoelectric effects in silicene nanoribbons
• Engineering Enhanced Thermoelectric Properties in Zigzag Graphene Nanoribbons
• Giant thermoelectric effect in graphene-based topological insulators with nanopores
• Edge currents and nanopore arrays in zigzag and chiral graphene nanoribbons as a route toward high-$ZT$ thermoelectrics
• Review on thermoelectric properties of transition metal dichalcogenides
• First-principles quantum transport modeling of thermoelectricity in single-molecule nanojunctions with graphene nanoribbon electrodes
• Phonon transport in large scale carbon-based disordered materials: Implementation of an efficient order-N and real-space Kubo methodology
• Efficient linear scaling method for computing the thermal conductivity of disordered materials
• Enhancing thermoelectric properties of graphene quantum rings
• Large thermoelectric power factors in black phosphorus and phosphorene
• Thermal conductivity of one-, two- and three-dimensional carbon
• Enhanced thermoelectric figure of merit in vertical graphene junctions
• Thermoelectric properties of a ferromagnet-superconductor hybrid junction: Role of interfacial Rashba spin-orbit interaction
• Rayleigh waves, surface disorder, and phonon localization in nanostructures
• First-principles study of the thermoelectric properties of strained graphene nanoribbons
• Coulomb drag and counterflow Seebeck coefficient in bilayer-graphene double layers
• Strain dependence of the heat transport properties of graphene nanoribbons
• Enhancing thermoelectric properties of isotope graphene nanoribbons via machine learning guided manipulation of disordered antidots and interfaces
• Nanoscale ear drum: Graphene based nanoscale sensors
• Tuning Phononic and Electronic Contributions of Thermoelectric in defected S-Shape Graphene Nanoribbons
• Dramatic effects of vacancies on phonon lifetime and thermal conductivity in graphene
• Electron and phonon transport in twisted graphene nanoribbons
• Study of Thermal Properties of Graphene-Based Structures Using the Force Constant Method
• Thermoelectric and thermospin transport in a ballistic junction of graphene
• Bilayer graphene nanoribbons junction with aligned holes exhibiting high ZT values
• Aspects of electron transport in zigzag graphene nanoribbons
• Electron transport properties of graphene nanoribbons with Gaussian deformation
• Thermoelectric properties of in-plane $90^0$-bent graphene nanoribbons with nanopores
• Thermoelectric properties of inversion symmetry broken Weyl semimetal-Weyl superconductor hybrid junctions
• On the channel width-dependence of the thermal conductivity in ultra-narrow graphene nanoribbons
• Enhancement of thermoelectric figure of merit in zigzag graphene nanoribbons with periodic edge vacancies
• Resonant enhancement in nanostructured thermoelectric performance via electronic thermal conductivity engineering
• Effects of metallic electrodes on the thermoelectric properties of zigzag graphene nanoribbons with periodic vacancies
• Dimensional crossover and enhanced thermoelectric efficiency due to broken symmetry in graphene antidot lattices
• Quantum coherent control of linear and nonlinear thermoelectricity on graphene nanostructure heat engines
• Isotope Effect on the Thermal Conductivity of Graphene
• Thermoelectric properties of disordered graphene antidot devices
• Thermodefect voltage in graphene nanoribbon junctions