743 citations · 1.2k across the 19 of their papers we have counts for
20 papers
Comment on "Carnot efficiency at divergent power output" (and additional discussion)
Y. Apertet
In a recent Letter [EPL, 118 (2017) 40003], Polettini and Esposito claimed that it is theoretically possible for a thermodynamic machine to achieve Carnot efficiency at divergent p…
Comment on "Optical Imaging of Light-Induced Thermopower in Semiconductor" [Phys. Rev. Applied 5, 024005 (2016)]
Y. Apertet
In a recent article [Phys. Rev. Applied 5, 024005 (2016)], Gibelli and coworkers proposed a method to determine the thermopower, i.e. the Seebeck coefficient, using photoluminescen…
Small-signal model for frequency analysis of thermoelectric systems
Y. Apertet, H. Ouerdane
We show how small-signal analysis, a standard method in electrical engineering, may be applied to thermoelectric device performance measurement by extending a dc model to the dynam…
Causality in thermoelectric systems: Insights from block diagrams
Y. Apertet
While Carnot's model engines demonstrate ideal performances regarding conversion efficiency, they cannot be actually used as energy converters since they are non causal systems. Su…
On the fundamental aspect of the first Kelvin's relation in thermoelectricity
Y. Apertet, C. Goupil
Kelvin's relations may be considered as cornerstones in the theory of thermoelectricity. Indeed, they gather together the three thermoelectric effects, associated respectively with…
Green thermoelectrics: Observation and analysis of plant thermoelectric response
C. Goupil, H. Ouerdane, A. Khamsing +5
Plants are sensitive to thermal and electrical effects; yet the coupling of both, known as thermoelectricity, and its quantitative measurement in vegetal systems never were reporte…
A note on the electrochemical nature of the thermoelectric power
Y. Apertet, H. Ouerdane, C. Goupil +1
While thermoelectric transport theory is well established and widely applied, there remains some degree of confusion on the proper thermodynamic definition of the Seebeck coefficie…
Continuity and boundary conditions in thermodynamics: From Carnot's efficiency to efficiencies at maximum power
Henni Ouerdane, Yann Apertet, Christophe Goupil +1
[...] By the beginning of the 20th century, the principles of thermodynamics were summarized into the so-called four laws, which were, as it turns out, definitive negative answers…
Influence of thermal environment on optimal working conditions of thermoelectric generators
Y. Apertet, H. Ouerdane, C. Goupil +1
Optimization analyses of thermoelectric generators operation is of importance both for practical applications and theoretical considerations. Depending on the desired goal, two dif…
Revisiting Feynman's ratchet with thermoelectric transport theory
Y. Apertet, H. Ouerdane, C. Goupil +1
We show how the formalism used for thermoelectric transport may be adapted to Smoluchowski's seminal thought experiment also known as Feynman's ratchet and pawl system. Our analysi…
Comment on "Heat dissipation in atomic-scale junctions"
Y. Apertet, H. Ouerdane, C. Goupil +1
We discuss the recent results of Lee et al. [Nature 498, 209 (2013)] using the notion of thermoelectric convection. In particular, we highlight the fact that this contribution to t…
Comment on "Effective thermal conductivity in thermoelectric materials"
Y. Apertet, H. Ouerdane, C. Goupil +1
In a recent article, Baranowski et al. [J. Appl. Phys. 113, 204904 (2013)] proposed a model that allegedly facilitates optimization of thermoelectric generators operation as these…
Reply to the Comment on "Optimal working conditions for thermoelectric generators with realistic thermal coupling" by S. Su et al
Y. Apertet, H. Ouerdane, O. Glavatskaya +2
We reply to the comment made by Su et al. on "Optimal working conditions for thermoelectric generators with realistic thermal coupling". In particular we justify the efficiency def…
Equivalent parameters for series thermoelectrics
Y. Apertet, H. Ouerdane, C. Goupil +1
We study the physical processes at work at the interface of two thermoelectric generators (TEGs) thermally and electrically connected in series. We show and explain how these proce…
Internal convection in thermoelectric generator models
Y. Apertet, H. Ouerdane, C. Goupil +1
Coupling between heat and electrical currents is at the heart of thermoelectric processes. From a thermal viewpoint this may be seen as an additional thermal flux linked to the app…
Efficiency at maximum power of thermally coupled heat engines
Y. Apertet, H. Ouerdane, C. Goupil +1
We study the efficiency at maximum power of two coupled heat engines, using thermoelectric generators (TEGs) as engines. Assuming that the heat and electric charge fluxes in the TE…
Irreversibilities and efficiency at maximum power of heat engines: illustrative case of a thermoelectric generator
Y. Apertet, H. Ouerdane, C. Goupil +1
Thermoelectric generators are particularly suitable to investigate the irreversible processes which govern the coupled transport of matter and heat in solid-state systems. We study…
Thermoelectric internal current loops inside inhomogeneous systems
Y. Apertet, H. Ouerdane, C. Goupil +1
Considering a system composed of two different thermoelectric modules electrically and thermally connected in parallel, we demonstrate that the inhomogeneities of the thermoelectri…
Optimal working conditions for thermoelectric generators with realistic thermal coupling
Y. Apertet, H. Ouerdane, O. Glavatskaya +2
We study how maximum output power can be obtained from a thermoelectric generator(TEG) with nonideal heat exchangers. We demonstrate with an analytic approach based on a force-flux…
Unveiling a two-dimensional electron gas with universal subbands at the surface of SrTiO3
A. F. Santander-Syro, O. Copie, T. Kondo +14
Similar to silicon that is the basis of conventional electronics, strontium titanate (SrTiO3) is the bedrock of the emerging field of oxide electronics. SrTiO3 is the preferred tem…