The effect of confinement on the electron thermal conductance of a nanocrystal

2007 ◽  
Vol 38 (1-2) ◽  
pp. 106-108 ◽  
Author(s):  
X. Zianni
Keyword(s):  
Thermal Conductance ◽  
Electron Thermal Conductance

Electron Thermal Transport Properties of a Quantum Dot

2006 ◽  
Vol 913 ◽  
Author(s):  
Xanthippi Zianni
Keyword(s):  
Quantum Dot ◽  
Transport Properties ◽  
Thermal Energy ◽  
Linear Response ◽  
Weak Coupling ◽  
Thermal Conductance ◽  
Linear Response Theory ◽  
Response Theory ◽  
Charging Energy ◽  
Electron Thermal Conductance

AbstractThe electron thermal conductance of a dot has been calculated within a linear response theory in the regime of weak coupling with two electrode leads. Coulomb oscillations are found. We discuss the effect of the interplay between the charging energy, the thermal energy and the confinement in the behavior of the electron thermal conductance.

THERMAL CONDUCTANCE OF TWO-SIDED CNT INTERFACES MEASUERED BY A PHOTO ACOUSTIC TECHNIQUE

Equipment ◽  
2006 ◽  
Author(s):  
B. A. Cola ◽  
J. Xu ◽  
C. Cheng ◽  
Xianfan Xu ◽  
T. Fisher
Keyword(s):  
Thermal Conductance ◽  
Acoustic Technique

Thermoelectric properties of B12N12 molecule

2019 ◽  
Vol 16 ◽  
Author(s):  
Mohammad Reza Niazian ◽  
Laleh Farhang Matin ◽  
Mojtaba Yaghobi ◽  
Amir Ali Masoudi
Keyword(s):  
Molecular Electronics ◽  
Thermoelectric Properties ◽  
Electronic Devices ◽  
Thermal Conductance ◽  
Wide Band ◽  
Oscillatory Behavior ◽  
Mapping Technique ◽  
Junction Points ◽  
Inelastic Behaviour ◽  
New Generation

Background: Recently, molecular electronics have attracted the attention of many researchers, both theoretically and applied electronics.Nanostructures have significant thermal properties, which is why they are considered as good options for designing a new generation of integrated electronic devices. Objective: In this paper, the focus is on the thermoelectric properties of the molecular junction points with the electrodes. Also, the influence of the number of atom contacts was investigated on the thermoelectric properties of molecule located between two electrodes metallic.Therefore, the thermoelectric characteristics of the B12 N12 molecule are investigated. Methods: For this purpose, the Green’s function theory as well as mapping technique approach with the wide-band approximation and also the inelastic behaviour is considered for the electron-phonon interactions. Results & Conclusion: Results & Conclusion:It is observed that the largest values of the total part of conductance as well as its elastic (G(e,n)max) depends on the number of atom contacts and are arranged as: G(e,1)max>G(e,4)max>G(e,6)max. Furthermore, the largest values of the electronic thermal conductance, i.e. Kpmax is seen to be in the order of K(p,4)max < K(p,1)max < K(p,6)max that the number of main peaks increases in four-atom contacts at (E<Ef). Furthermore, it is represented that the thermal conductance shows an oscillatory behavior which is significantly affected by the number of atom contacts.

scholarly journals Finite Physical Dimensions Thermodynamics Analysis and Design of Closed Irreversible Cycles

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3416
Author(s):  
Gheorghe Dumitrașcu ◽  
Michel Feidt ◽  
Ştefan Grigorean
Keyword(s):  
Thermal Conductance ◽  
Heat Output ◽  
Operational Parameters ◽  
Analysis And Design ◽  
The Mean ◽  
Internal Irreversibility ◽  
Heat Transfers ◽  
Operational Constraints ◽  
Log Temperatures ◽  
Physical Dimensions

This paper develops simplifying entropic models of irreversible closed cycles. The entropic models involve the irreversible connections between external and internal main operational parameters with finite physical dimensions. The external parameters are the mean temperatures of external heat reservoirs, the heat transfers thermal conductance, and the heat transfer mean log temperatures differences. The internal involved parameters are the reference entropy of the cycle and the internal irreversibility number. The cycle’s design might use four possible operational constraints in order to find out the reference entropy. The internal irreversibility number allows the evaluation of the reversible heat output function of the reversible heat input. Thus the cycle entropy balance equation to design the trigeneration cycles only through external operational parameters might be involved. In designing trigeneration systems, they must know the requirements of all consumers of the useful energies delivered by the trigeneration system. The conclusions emphasize the complexity in designing and/or optimizing the irreversible trigeneration systems.

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