Listar ESID_Articles por autoría "8ba9fde4-7b44-4777-a8b4-2d51d18dd6ec"
Mostrando ítems 21-34 de 34
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Large Power Factor Improvement in a Novel Solid–Liquid Thermoelectric Hybrid Device
Márquez García, Lourdes; Beltrán-Pitarch, Braulio; Powell, Damian; Gao, Min; García-Cañadas, Jorge American Chemical Society (2018-01-09)The performance of thermoelectric materials has been improved in the past few years by a significant reduction of the thermal conductivity, but this parameter has now reached its (amorphous) limit, which makes the enlargement ... -
Low Frequency Impedance Spectroscopy Analysis of Thermoelectric Modules
García-Cañadas, Jorge; Min, Gao Springer Science & Business Media (2014-06)Impedance spectroscopy is a well-established technique for the study of semiconductors and energy-related devices. However, in the area of thermo- electrics (TEs), this technique is not frequently used and there ... -
Measurement of the thermoelectric properties of phenylacetylene capped silicon nanoparticles and their potential in fabrication of thermoelectric materials
Ashby, Shane P.; García-Cañadas, Jorge; Min, Gao; Chao, Yimin Springer (2013-07)Silicon is a highly attractive material for the fabrication of thermoelectric materials. Nanostructured silicon materials, such as silicon nanowires (SiNWs), show great potential as they show low thermal conductivities due ... -
Measurement of thermal conductivity and thermal diffusivity using a thermoelectric module
Beltrán-Pitarch, Braulio; Márquez García, Lourdes; Min, Gao; García-Cañadas, Jorge IOP Publishing Ltd (2017)A proof of concept of using a thermoelectric module to measure both thermal conductivity and thermal diffusivity of bulk disc samples at room temperature is demonstrated. The method involves the calculation of the integral ... -
Multifunctional probes for high-throughput measurement of Seebeck coefficient and electrical conductivity at room temperature
García-Cañadas, Jorge; Min, Gao AIP Publishing (2014)An apparatus capable of rapid measurement of the Seebeck coefficient and electrical resistivity at room temperature is reported. The novel aspect of this apparatus is the use of 4 multifunctional probes that comprise a ... -
Nanostructured and porous antimony-doped tin oxide as electrode material for the heat-to-electricity energy conversion in thermo-electrochemical cells
Castro Ruiz, Sergio; García-Cañadas, Jorge Elsevier (2024-02-25)Thermo-electrochemical cells (or thermogalvanic cells or thermocells, TECs) have gained attention as devices able to convert low temperature heat into electricity. Within TECs, Pt is one of the most employed electrodes, ... -
Power factor improvement in a solid–liquid thermoelectric system formed by Sb:SnO2 in contact with a chromium complex solution
Castro Ruiz, Sergio; Márquez García, Lourdes; Solis de la Fuente, Mauricio; Beltrán-Pitarch, Braulio; Mota-Babiloni, Adrián; Vidan-Falomir, Francisco; Íñigo-Rabinal, P.; Guisado-Barrios, Gregorio; García-Cañadas, Jorge Royal Society of Chemistry (2023)Thermoelectric (TE) materials can convert heat into electricity. Good TE materials should have high power factors (PF) and low thermal conductivities. PF = S2σ is governed by the Seebeck coefficient S and the electrical ... -
Prismatic Spreading–Constriction Expression for the Improvement of Impedance Spectroscopy Models and a More Accurate Determination of the Internal Thermal Contact Resistances of Thermoelectric Modules
Aljaghtham, Mutabe; Song, Ge; García-Cañadas, Jorge; Beltrán-Pitarch, Braulio American Chemical Society (2023-06-27)Thermoelectric (TE) devices can convert heat to electrical power or use electrical power to generate a temperature difference. Their characterization is essential to develop devices with higher efficiency. Impedance ... -
Room temperature screening of thermal conductivity by means of thermal transient measurements
García-Cañadas, Jorge; Cheng, Shudan; Márquez García, Lourdes; Prest, Martin J.; Akbari-Rahimadi, Ahmad; Min, Gao IOP Publishing (2016-10)A proof of concept of the possibility to estimate thermal conductivity of bulk disc samples at room temperature by means of thermal decays is demonstrated. An experimental set-up was designed and fabricated, which is able ... -
Synergistic photovoltaic–thermoelectric effect in a nanostructured CdTe/Bi2Te3 heterojunction for hybrid energy harvesting
Luo, Bingwei; Deng, Yuan; Wang, Yao; Gao, Min; Zhu, Wei; Talib Hashim, Hasan; García-Cañadas, Jorge Royal Society of Chemistry (2016)Recent advances in the photovoltaic and thermoelectric material synthesis and characterization have engendered significant interest in their solar energy harvesting. However, examples of energy harvesting by the two effects ... -
Thermal conductivity, electrical resistivity, and dimensionless figure of merit (ZT) determination of thermoelectric materials by impedance spectroscopy up to 250 °C
Beltrán-Pitarch, Braulio; Prado-Gonjal, Jesus; Powell, Anthony V.; Ziolkowski, Pawel; García-Cañadas, Jorge AIP Publishing (2018-07)Impedance spectroscopy has been shown as a promising method to characterize thermoelectric (TE) materials and devices. In particular, the possibility to determine the thermal conductivity λ, electrical conductivity σ, and ... -
Thermal contact resistance evaluation of a thermoelectric system by means of three I-V curves
Beltrán-Pitarch, Braulio; Vidan-Falomir, Francisco; García-Cañadas, Jorge Elsevier (2021-04-05)To achieve a suitable performance in a thermoelectric (TE) device it is important to minimize the thermal contact resistances between the device external surfaces and the heat exchangers of the system (heat source and heat ... -
Thermal dynamics of thermoelectric phenomena from frequency resolved methods
García-Cañadas, Jorge; Min, Gao American Institute of Physics (AIP) (2016-03-09)Understanding the dynamics of thermoelectric (TE) phenomena is important for the detailed knowledge of the operation of TE materials and devices. By analyzing the impedance response of both a single TE element and a TE ... -
Towards a comprehensive model for characterising and assessing thermoelectric modules by impedance spectroscopy
Mesalam, Ramy; Williams, Hugo; Ambrosi, Richard M.; García-Cañadas, Jorge; Stephenson, Keith Elsevier (2018-09-15)Thermoelectric devices have potential energy conversion applications ranging from space exploration through to mass-market products. Standardised, accurate and repeatable high-throughput measurement of their properties is ...