Desarrollo de prototipo de celda solar fabricadacon arquitectura FTO/TIO2/PEROVSKITA (CsPbBr3-xIx)/C

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dc.contributor.advisorGordillo Guzman, Gerardo
dc.contributor.advisorClavijo Penagos, Josue Itsman
dc.contributor.authorTorres Diaz, Oscar Giovanni
dc.contributor.cvlacTorres Díaz, Oscar Giovanni [rh=0000050279]
dc.contributor.googlescholarhttps://scholar.google.com/citations?user=r3WpMGIAAAAJ&hl=es
dc.contributor.orcidTorres Díaz, Oscar Giovanni [0000000311400731]
dc.contributor.researchgroupGrupo de Materiales Semiconductores y Energía Solar
dc.date.accessioned2025-09-30T14:20:54Z
dc.date.available2025-09-30T14:20:54Z
dc.date.issued2025-09
dc.descriptionilustraciones a color, diagramasspa
dc.description.abstractActualmente se están investigando intensivamente nuevos materiales fotovoltaicos que forman parte de la tercera generación de dispositivos fotovoltaicos que es posterior a las tecnologías de primera generación de silicio y de segunda generación de película delgada que hicieron tránsito en forma exitosa a producción industrial; estos nuevos materiales están caracterizados por ser de bajo costo, abundantes en la naturaleza y de baja toxicidad. Entre los materiales emergentes investigados, existe una familia que ha permitido en muy corto tiempo fabricar dispositivos altamente eficientes, pero que no han hecho tránsito a producción industrial porque además de incluir plomo, se degradan bajo condiciones ambientales de humedad, iluminación y temperatura. Estos materiales son compuestos híbridos, sintetizados mezclando materiales orgánicos e inorgánicos y crecidos con estructura cristalina tipo Perovskita, siendo el compuesto CH3NH3PbI3 (MAPbI3) el más investigado. Considerando que estos compuestos de Perovskita híbridos se degradan cuando son expuestos a condiciones ambientales, recientemente se propuso la síntesis de compuestos con estructura Perovskita totalmente inorgánicos como potencial alternativo a las Perovskita hibridas, debido a que este tipo de compuestos permiten fabricar dispositivos fotovoltaicos de alta estabilidad. En el marco de este trabajo de tesis se hicieron aportes interesantes en aspectos relacionados con implementación de infraestructura usada para síntesis y optimización de propiedades de películas delgadas de materiales inorgánicos crecidos con estructura Perovskita, así como también al desarrollo de un prototipo de celda solar que usa como capa activa películas delgadas del compuesto inorgánico CsPbBr3-xIx tipo Perovskita (0≤x≤2), preparado usando una ruta de síntesis que incluye evaporación secuencial de los precursores PbBr2/PbI2/BrCs; esta celda solar se fabricó con arquitectura FTO/TiO2/CsPbBr3-xIx/C y previo a su fabricación se realizó un estudio exhaustivo que permitió optimizar las propiedades ópticas, morfológicas y estructurales de las muestras de Perovskita, mediante correlación de parámetros de síntesis con los resultados de la caracterización realizada a través de medidas de difracción de rayos-x, microscopía electrónica de barrido (SEM) y transmitancia y reflectancia espectral. Finalmente vale la pena resaltar el aporte más significativo de este trabajo consistente en un estudio de la influencia que la substitución del catión metálico Pb por iones de Zn2+y Sn2+ ejerce sobre la estabilidad de las películas de Perovskita y sobre el desempeño y del dispositivo (Texto tomado de la fuente).spa
dc.description.abstractNew photovoltaic materials are currently being intensively investigated as part of the third generation of photovoltaic devices, which follow the first-generation silicon technologies and the second-generation thin-film technologies that successfully transitioned to industrial production. These new materials are characterized by being low-cost, naturally abundant, and low in toxicity. Among the emerging materials studied, there is a family that has enabled, in a very short time, the fabrication of highly efficient devices, but which have not transitioned to industrial production because, in addition to containing lead, they degrade under environmental conditions of humidity, light, and temperature. These materials are hybrid compounds, synthesized by combining organic and inorganic materials and grown with a Perovskite-type crystalline structure, with the compound CH₃NH₃PbI₃ (MAPbI₃) being the most widely studied. Considering that these hybrid Perovskite compounds degrade when exposed to environmental conditions, the synthesis of fully inorganic Perovskite-structured compounds has recently been proposed as a potential alternative to hybrid Perovskites, since this type of compounds enables the fabrication of highly stable photovoltaic devices. Within the framework of this doctoral thesis, significant contributions were made in aspects related to the implementation of infrastructure for the synthesis and optimization of the properties of inorganic Perovskite thin films, as well as the development of a solar cell prototype that uses thin films of the inorganic Perovskite-type compound CsPbBr₃₋ₓIₓ (0≤x≤2) as the active layer. This material was prepared using a sequential evaporation route of the PbBr₂/PbI₂/BrCs precursors. The solar cell was fabricated with the FTO/TiO₂/CsPbBr₃₋ₓIₓ/C architecture, and prior to its fabrication, an exhaustive study was carried out to optimize the optical, morphological, and structural properties of the Perovskite samples through the correlation of synthesis parameters with the results obtained from x-ray diffraction, scanning electron microscopy (SEM), and spectral transmittance and reflectance measurements. Finally, the most significant contribution of this work is highlighted: a study of the influence of substituting the metallic cation Pb with Zn²⁺ and Sn²⁺ ions on the stability of the Perovskite films and on device performance.eng
dc.description.degreelevelDoctorado
dc.description.degreenameDoctorado en Ciencias Física
dc.description.researchareaMateriales y Energía
dc.format.extentxvi, 95 páginas
dc.format.mimetypeapplication/pdf
dc.identifier.instnameUniversidad Nacional de Colombiaspa
dc.identifier.reponameRepositorio Institucional Universidad Nacional de Colombiaspa
dc.identifier.repourlhttps://repositorio.unal.edu.co/spa
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/88985
dc.language.isospa
dc.publisherUniversidad Nacional de Colombia
dc.publisher.branchUniversidad Nacional de Colombia - Sede Bogotá
dc.publisher.facultyFacultad de Ciencias
dc.publisher.placeBogotá, Colombia
dc.publisher.programBogotá - Ciencias - Doctorado en Ciencias - Física
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dc.rights.licenseAtribución-NoComercial-SinDerivadas 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.ddc620 - Ingeniería y operaciones afines::621 - Física aplicada
dc.subject.ddc540 - Química y ciencias afines::546 - Química inorgánica
dc.subject.lembSILICIOspa
dc.subject.lembSiliconeng
dc.subject.lembSILICEspa
dc.subject.lembSilicaeng
dc.subject.lembSEMICONDUCTORESspa
dc.subject.lembSemiconductorseng
dc.subject.lembPROPIEDADES OPTICASspa
dc.subject.lembOptical propertieseng
dc.subject.proposalPelículas delgadasspa
dc.subject.proposalCsPbBr3-xIxspa
dc.subject.proposalPerovskita inorgánicasspa
dc.subject.proposalCeldas Solaresspa
dc.subject.proposalThin filmseng
dc.subject.proposalCsPbBr₃₋ₓIₓeng
dc.subject.proposalInorganic Perovskiteeng
dc.subject.proposalSolar Cellseng
dc.titleDesarrollo de prototipo de celda solar fabricadacon arquitectura FTO/TIO2/PEROVSKITA (CsPbBr3-xIx)/Cspa
dc.title.translatedDevelopment of a Solar cell prototype fabricated with FTO/TiO₂/Perovskite (CsPbBr₃₋ₓIₓ)/C architectureeng
dc.typeTrabajo de grado - Doctorado
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TesisOscarTorresD.pdf
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Tesis de Maestría en ciencias Física
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Colecciones

Doctorado en Ciencias - Física