Hybrid Solar Cells of Pyrite-Based/Poly(3-Hexylthiophene) Core/Shell Nanowires

Purpose and Study Method: Iron pyrite (FeS2) is a candidate semiconductor in the development of high efficiency photovoltaic devices. A real commercialization of solar cells leads to fabricate photovoltaic devices of earth-abundant and low-cost materials. The FeS2 shows strong optical and electrica...

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Autor principal: Retana Betancourt, María Fernanda
Formato: Tesis
Lenguaje:inglés
Publicado: 2021
Materias:
Acceso en línea:http://eprints.uanl.mx/21897/1/1080315161.pdf
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author Retana Betancourt, María Fernanda
author_facet Retana Betancourt, María Fernanda
author_sort Retana Betancourt, María Fernanda
collection Tesis
description Purpose and Study Method: Iron pyrite (FeS2) is a candidate semiconductor in the development of high efficiency photovoltaic devices. A real commercialization of solar cells leads to fabricate photovoltaic devices of earth-abundant and low-cost materials. The FeS2 shows strong optical and electrical properties for solar energy application. Although the highest efficiency for a pyrite-based hybrid solar cell is 3%. The poor performance of the hybrid solar cells is explained by surface passivation and the presence of isomorphs. Raised strategies involve the coupling with wide-bandgapinorganic semiconductor (ZnO) to form p-n heterojunction while the coupling with conducting polymers (Poly(3-hexylthiophene) can form a donor-acceptor interface increasing optical and electrical properties. Therefore, it is the aim of this work the synthesis of photoactive materials of FeS2, ZnO and the polymeric matrix of poly(3-hexylthiophene) in order to study their optical, structural and morphological behavior for their potential application in hybrid solar cells. Contributions and Conclusions: One-dimensional poly(3-hexylthiophene) and ZnO thin films were obtained by electrochemical method. The electrochemical parameters influence the morphology and sizes tuning the optical properties, which it enables to obtain multifunctional nanomaterials. The conversion of nanorods into a tubular morphology is possible due to the defects and metastability of ZnO. The hollow structures allow the coupling with FeS2 nanoparticles and offer the possibility to increase the optical absorption due to the high surface area and exciton confinement. The iron pyrite nanoparticles were obtained using complexing agents for the very first time. Air-stable FeS2 show stability for 21 days without special storage conditions. The semiconductors obtained exhibit suitable optical, structural and morphological properties for solar energy conversion.
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spelling eptesis-218972021-07-21T18:08:53Z http://eprints.uanl.mx/21897/ Hybrid Solar Cells of Pyrite-Based/Poly(3-Hexylthiophene) Core/Shell Nanowires Retana Betancourt, María Fernanda QD Química Purpose and Study Method: Iron pyrite (FeS2) is a candidate semiconductor in the development of high efficiency photovoltaic devices. A real commercialization of solar cells leads to fabricate photovoltaic devices of earth-abundant and low-cost materials. The FeS2 shows strong optical and electrical properties for solar energy application. Although the highest efficiency for a pyrite-based hybrid solar cell is 3%. The poor performance of the hybrid solar cells is explained by surface passivation and the presence of isomorphs. Raised strategies involve the coupling with wide-bandgapinorganic semiconductor (ZnO) to form p-n heterojunction while the coupling with conducting polymers (Poly(3-hexylthiophene) can form a donor-acceptor interface increasing optical and electrical properties. Therefore, it is the aim of this work the synthesis of photoactive materials of FeS2, ZnO and the polymeric matrix of poly(3-hexylthiophene) in order to study their optical, structural and morphological behavior for their potential application in hybrid solar cells. Contributions and Conclusions: One-dimensional poly(3-hexylthiophene) and ZnO thin films were obtained by electrochemical method. The electrochemical parameters influence the morphology and sizes tuning the optical properties, which it enables to obtain multifunctional nanomaterials. The conversion of nanorods into a tubular morphology is possible due to the defects and metastability of ZnO. The hollow structures allow the coupling with FeS2 nanoparticles and offer the possibility to increase the optical absorption due to the high surface area and exciton confinement. The iron pyrite nanoparticles were obtained using complexing agents for the very first time. Air-stable FeS2 show stability for 21 days without special storage conditions. The semiconductors obtained exhibit suitable optical, structural and morphological properties for solar energy conversion. 2021 Tesis NonPeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/21897/1/1080315161.pdf http://eprints.uanl.mx/21897/1.haspreviewThumbnailVersion/1080315161.pdf Retana Betancourt, María Fernanda (2021) Hybrid Solar Cells of Pyrite-Based/Poly(3-Hexylthiophene) Core/Shell Nanowires. Doctorado thesis, Universidad Autónoma de Nuevo León.
spellingShingle QD Química
Retana Betancourt, María Fernanda
Hybrid Solar Cells of Pyrite-Based/Poly(3-Hexylthiophene) Core/Shell Nanowires
thumbnail https://rediab.uanl.mx/themes/sandal5/images/tesis.png
title Hybrid Solar Cells of Pyrite-Based/Poly(3-Hexylthiophene) Core/Shell Nanowires
title_full Hybrid Solar Cells of Pyrite-Based/Poly(3-Hexylthiophene) Core/Shell Nanowires
title_fullStr Hybrid Solar Cells of Pyrite-Based/Poly(3-Hexylthiophene) Core/Shell Nanowires
title_full_unstemmed Hybrid Solar Cells of Pyrite-Based/Poly(3-Hexylthiophene) Core/Shell Nanowires
title_short Hybrid Solar Cells of Pyrite-Based/Poly(3-Hexylthiophene) Core/Shell Nanowires
title_sort hybrid solar cells of pyrite based poly 3 hexylthiophene core shell nanowires
topic QD Química
url http://eprints.uanl.mx/21897/1/1080315161.pdf
work_keys_str_mv AT retanabetancourtmariafernanda hybridsolarcellsofpyritebasedpoly3hexylthiophenecoreshellnanowires