Thermoelectric Performance Enhanced by Destructive Quantum Interference in Nanoporous Carbon Nanotube Based Junctions

Wang, Jue; Wu, Dan; Huang, Lin; Cao, Xuan‐Hao; Ding, Zhong-Ke; Zeng, Yu‐Jia; Luo, Nannan; Tang, Li‐Ming; Chen, Ke‐Qiu

doi:10.1002/pssr.202100400

Cited by 3 publications

(2 citation statements)

References 60 publications

(57 reference statements)

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“…The thermoelectric and piezoelectric effects, which, respectively, convert heat and mechanical energy into electricity, have attracted tremendous attention in the past few decades. Significant efforts have been devoted to improving thermoelectric conversion efficiency by suppressing lattice thermal conductivity [1][2][3][4][5][6][7][8] or engineering electronic band structures [9][10][11][12][13][14][15][16][17] to enhance the power factor. However, thermoelectric conversion efficiency is still limited by the complex coupling relations between phonons and electrons [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Thermoelectric Conversion From Interface Thermophoresis and Piezoelectric Effects

et al. 2022

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Piezoelectric effect has proved itself to be a promising energy conversion mechanism that can convert mechanical energy into electricity. Here, we propose an indirect thermoelectric conversion mechanism based on a combination of the thermophoresis and piezoelectric effects. We first analyze this thermally driven mechanism using a simplified theoretical model and then numerically analyze a molecular dynamics (MD) simulation of a hybrid system constructed of a single-layer MoS2 nanoribbon and a concentric carbon nanotube. We show that the thermophoresis-induced piezoelectric output voltage can reach 3.5 V, and this value can be tuned using a temperature difference. The output voltage obtained using this mechanism is significantly higher than that obtained by heating piezoelectric materials directly. Given the generality of the thermophoresis effect in Van der Waals structures, this mechanism has potential applications in the conversion of thermal energy into electrical energy at the nanoscale level.

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Section: Introductionmentioning

confidence: 99%

Thermoelectric Conversion From Interface Thermophoresis and Piezoelectric Effects

et al. 2022

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“…In these latter systems, we can have a possibility to get on one hand high electrical conductance and on the other hand low thermal conductance, due to the smallness of the system size. [12] A large amount of work has already been done considering different kinds of nanoscale systems, [13][14][15][16][17] however, further probing is needed to look deeper into the problem for better understanding and to find suitable functional elements.…”

Section: Introductionmentioning

confidence: 99%

Thermoelectricity in a Quasiperiodic Lattice Beyond Nearest‐Neighbor Electron Hopping

Dey

Mukherjee²,

Maiti

2022

Annalen der Physik

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A new route to obtain a large figure of merit (>1) is reported, for the first time, by considering a one‐dimensional quasiperiodic lattice where an electron can hop beyond usual nearest‐neighbor sites. A finite positional correlation is imposed among the constituent lattice sites, following the well‐known Aubry‐André‐Harper (AAH) form. In the presence of second‐neighbor hopping, the AAH lattice exhibits energy dependent mobility edge which plays the central role for efficient energy conversion. Employing a tight‐binding framework, all the thermoelectric quantities are computed based on the standard nonequilibrium Green's function formalism. The analysis can be utilized to investigate thermoelectric phenomena in similar kinds of other aperiodic systems possessing higher order electron hopping.

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Effective Thermoelectric Switch of Hollow Weakly-Coupled Molecular Junction Based on Twist Angle Effect with Boron-Doping

Zhang,

Zhang

2023

Nanoscale and Microscale Thermophysical Engineering

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Thermoelectric Performance Enhanced by Destructive Quantum Interference in Nanoporous Carbon Nanotube Based Junctions

Abstract: The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/pssr.202100400.

Cited by 3 publications

References 60 publications

Thermoelectric Conversion From Interface Thermophoresis and Piezoelectric Effects

Thermoelectric Conversion From Interface Thermophoresis and Piezoelectric Effects

Thermoelectricity in a Quasiperiodic Lattice Beyond Nearest‐Neighbor Electron Hopping

Effective Thermoelectric Switch of Hollow Weakly-Coupled Molecular Junction Based on Twist Angle Effect with Boron-Doping

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