000119741 001__ 119741
000119741 005__ 20240319081025.0
000119741 0247_ $$2doi$$a10.3390/app122010254
000119741 0248_ $$2sideral$$a130510
000119741 037__ $$aART-2022-130510
000119741 041__ $$aeng
000119741 100__ $$0(orcid)0000-0003-0747-405X$$aMerino, Rosa I.
000119741 245__ $$aDirectionally solidified cobalt-doped MgO-MgAl2O4 eutectic composites for selective emitters
000119741 260__ $$c2022
000119741 5060_ $$aAccess copy available to the general public$$fUnrestricted
000119741 5203_ $$aCobalt-doped MgO-MgAl2O4 eutectic composites were explored for their use as selective emitters for thermophotovoltaic devices. Eutectic ceramic rods with different cobalt content were directionally solidified by using the laser floating zone technique at two processing rates to obtain microstructures with different domain sizes. Thermal emission between 1000 °C and 1500 °C and optical properties (reflectance and transmittance) at room temperature were measured in the Co-doped composites and the effect on microstructure and cobalt content was investigated. Thermal emission consisted of an intense broad band at about 1.67 µm matching with the bandgap of the InGaAs cell. The emission was ascribed to the de-excitation from the 4T1(F) multiplet to the 4A2(F) ground state of the thermally excited Co ions located in the tetrahedral sites of the MgAl2O4 phase. The selectivity of the thermal emission showed a decrease with the cobalt content due to the enhancement of other electronic transitions, which leads to keeping the cobalt content in these composites at low levels (<0.15% at Co) for their use as selective emitters.
000119741 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000119741 590__ $$a2.7$$b2022
000119741 592__ $$a0.492$$b2022
000119741 591__ $$aPHYSICS, APPLIED$$b78 / 160 = 0.488$$c2022$$dQ2$$eT2
000119741 591__ $$aENGINEERING, MULTIDISCIPLINARY$$b42 / 90 = 0.467$$c2022$$dQ2$$eT2
000119741 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b100 / 178 = 0.562$$c2022$$dQ3$$eT2
000119741 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b208 / 343 = 0.606$$c2022$$dQ3$$eT2
000119741 593__ $$aFluid Flow and Transfer Processes$$c2022$$dQ2
000119741 593__ $$aMaterials Science (miscellaneous)$$c2022$$dQ2
000119741 593__ $$aEngineering (miscellaneous)$$c2022$$dQ2
000119741 593__ $$aInstrumentation$$c2022$$dQ2
000119741 593__ $$aProcess Chemistry and Technology$$c2022$$dQ3
000119741 593__ $$aComputer Science Applications$$c2022$$dQ3
000119741 594__ $$a4.5$$b2022
000119741 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000119741 700__ $$0(orcid)0000-0003-3480-398X$$aOliete, Patricia B.$$uUniversidad de Zaragoza
000119741 700__ $$0(orcid)0000-0001-6337-5510$$aMoshtaghion, Bibi Malmal
000119741 700__ $$0(orcid)0000-0002-5998-2251$$aSola, Daniel
000119741 700__ $$0(orcid)0000-0003-2242-6822$$aPeña, José I.$$uUniversidad de Zaragoza
000119741 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000119741 773__ $$g12, 20 (2022), 10254$$pAppl. sci.$$tApplied Sciences (Switzerland)$$x2076-3417
000119741 8564_ $$s3626431$$uhttps://zaguan.unizar.es/record/119741/files/texto_completo.pdf$$yVersión publicada
000119741 8564_ $$s2680523$$uhttps://zaguan.unizar.es/record/119741/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000119741 909CO $$ooai:zaguan.unizar.es:119741$$particulos$$pdriver
000119741 951__ $$a2024-03-18-16:36:38
000119741 980__ $$aARTICLE