Exploració per tema "Thermoelectricity"
Ara es mostren els items 1-20 de 36
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Anisotropic effects on the thermoelectric properties of highly oriented electrodeposited Bi2Te3 films
(Macmillan Publishers, 2016-01-18)
Article
Accés obertThermoelectric materials have garnered significant attention in response to the necessity to develop alternative energy sources than those that rely on fossil fuels. The performance of thermoelectric materials1 is quantified ... -
Bottom-up processing of thermoelectric nanocomposites from colloidal nanocrystal building blocks: the case of Ag2Te–PbTe
(2012-11-28)
Article
Accés restringit per política de l'editorialNanocomposites are highly promising materials to enhance the efficiency of current thermoelectric devices. A straightforward and at the same time highly versatile and controllable approach to produce nanocomposites is ... -
Colloidal synthesis and thermoelectric properties of Cu2SnSe3 nanocrystals
(Royal Society of Chemistry, 2012-12-15)
Article
Accés restringit per política de l'editorialCopper-based selenides are attracting increasing interest due to their outstanding optoelectronic and thermoelectric properties. Herein a novel colloidal synthetic route to prepare Cu2SnSe3 nanocrystals with controlled ... -
Convective thermal fluxes in unsteady non-homogeneous flows
(2019-07)
Article
Accés obertIn this paper we describe a novel experimental apparatus consisting of a thermoelectric driven heating and cooling device that could be used in didactic laboratories and research. Is possible to model common environmental ... -
Copper diffusion rates and hopping pathways in superionic Cu2Se
(2021-08-15)
Article
Accés restringit per política de l'editorialThe ultra-low thermal conductivity of Cu2Se is well established, but so far there is no consensus on the underlying mechanism. One proposal is that the fast-ionic diffusion of copper suppresses the acoustic phonons. The ... -
Disseny d'un sistema de control per a la generació d'electricitat basat en energia solar
(Universitat Politècnica de Catalunya, 2013-06)
Projecte/Treball Final de Carrera
Accés obertEn aquest projecte es dissenyarà un sistema de generació d'electricitat a partir d'una placa solar fotovoltaica. El sistema d'energia renovable consisteix en un panell solar, un convertidor de tensió i una bateria per poder ... -
Disseny i fabricació d'un quadre d'instruments per a un ciclomotor alimentat per termo-cèl·lules
(Universitat Politècnica de Catalunya, 2015-10-30)
Treball Final de Grau
Accés obertLes termo-cèl·lules varen aparèixer Durant les dècades dels 50 i 60 del segle anterior, i , fins avui, han assolit una gran millora en la seva eficiència. L’inconvenient principal de l’ús de la termo-electricitat recau ... -
Doping-mediated stabilization of copper vacancies to promote thermoelectric properties of Cu2-xS
(2021-07-01)
Article
Accés obertCopper chalcogenides are outstanding thermoelectric materials for applications in the medium-high temperature range. Among different chalcogenides, while Cu2-xSe is characterized by higher thermoelectric figures of merit, ... -
Effect of the thickness of amorphous silicon carbide interlayer on the passivation of c-Ge surface by aluminium oxide films
(Elsevier, 2022-07)
Article
Accés restringit per política de l'editorialSurface passivation is of paramount importance in photovoltaic devices based on high-quality crystalline absorbers such as crystalline germanium (c-Ge). In this work, we report on the surface passivation of p-type c-Ge by ... -
Electric power generation from combustion in porous media
(2016-09-12)
Article
Accés restringit per política de l'editorialCombustion of lean air/fuel mixtures in an inert porous medium provides an efficient way to convert chemical energy of hydrocarbons into thermal energy. The porous medium effectively redistributes the heat allowing the ... -
Engineering of thermoelectric composites based on silver selenide in aqueous solution and ambient temperature
(American Chemical Society (ACS), 2023-05-01)
Article
Accés obertThe direct, solid state, and reversible conversion between heat and electricity using thermoelectric devices finds numerous potential uses, especially around room temperature. However, the relatively high material processing ... -
Estudio de generación de energía electrica en un automóvil utilizando células termoeléctricas.
(Universitat Politècnica de Catalunya, 2016-06-22)
Treball Final de Grau
Accés obertDesde que se descubrió la termoelectricidad en el siglo XIX, han sido muchos los que han querido llevar este fenómeno a la práctica mediante, por ejemplo, las células termoeléctricas. El propósito de este estudio es ... -
Estudio de la viabilidad para la introducción al mercado y diseño de una fiambrera portátil generadora de frío y calor mediante el efecto Peltier
(Universitat Politècnica de Catalunya, 2018-06-10)
Treball Final de Grau
Accés restringit per decisió de l'autorEl proyecto pretende analizar la viabilidad que tendría la implementación al mercado de una fiambrera portátil generadora de frío y de calor. Por todos es sabido que los cambios en las sociedades generan nuevos estilos de ... -
Feasibility study on thermal energy harvesting for low powered electronics in high-voltage substations
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Comunicació de congrés
Accés obertElectronic devices combining sensors, wireless communications, and data processing capability allow easing predictive maintenance tasks in many applications. This paper applies this approach in power connectors for ... -
Generador d'energia elèctrica a partir del calor corporal
(Universitat Politècnica de Catalunya, 2017-05)
Treball Final de Grau
Accés obertAquest projecte pretén estudiar i desenvolupar el disseny i implementació d’un generador de voltatge a partir de la calor que desprèn l’ésser humà i aprofitar-la per a carregar dispositius com mòbils, smartphones, tabletes, ... -
Generador termoeléctrico para alimentar sensores industriales
(Universitat Politècnica de Catalunya, 2020-01-31)
Treball Final de Grau
Accés restringit per acord de confidencialitat -
High-conductive protonated layered oxides from H2O vapor-annealed brownmillerites
(2021-12-02)
Article
Accés obertProtonated 3d transition-metal oxides often display low electronic conduction, which hampers their application in electric, magnetic, thermoelectric, and catalytic fields. Electronic conduction can be enhanced by co-inserting ... -
Highly reflective and passivated ohmic contacts in p-Ge by laser processing of aSiCx:H(i)/Al2O3/aSiC films for thermophotovoltaic applications
(2024-01-15)
Article
Accés obertCrystalline germanium (c-Ge) has historically been regarded as a cost-effective alternative to III-V semiconductors for thermophotovoltaic (TPV) device fabrication. However, Ge-based devices have not yet reported high ... -
Influence of the ligand stripping on the transport properties of nanoparticle-based PbSe nanomaterials
(2020-01-07)
Article
Accés obertNanomaterials produced from the bottom-up assembly of nanocrystals may incorporate ~1020–1021 cm–3 not fully coordinated surface atoms, i.e., ~1020–1021 cm–3 potential donor or acceptor states that can strongly affect ... -
Lunar ISRU Energy Storage and Electricity Generation
(2020)
Comunicació de congrés
Accés obertThe survival of the astronauts and their equipment is the priority for any long-term exploration mission to the Moon. The provision of energy during the long lunar nights is a critical part of these missions. Several ...
