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dc.contributor.author | Jemai, Safa![]() |
es_ES |
dc.contributor.author | Hajjaji, Anouar![]() |
es_ES |
dc.contributor.author | Baig, Faisal![]() |
es_ES |
dc.contributor.author | Harabi, Imen![]() |
es_ES |
dc.contributor.author | Marí, B.![]() |
es_ES |
dc.contributor.author | Bessais, Brahim![]() |
es_ES |
dc.date.accessioned | 2022-07-05T18:05:29Z | |
dc.date.available | 2022-07-05T18:05:29Z | |
dc.date.issued | 2021-05 | es_ES |
dc.identifier.issn | 1044-5803 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/183839 | |
dc.description.abstract | [EN] This paper reports on a systematic study highlighting dramatic morphological changes during the preparation of Lead Sulfide (PbS) by a hydrothermal process. PbS micro/nanostructures having different shapes and sizes were prepared via a simple hydrothermal reaction between lead acetate and a sulfur precursor (Thiourea (Tu) or Na2S). We show that the shapes of the PbS micro/nanostructures can be tuned by varying the process parameters, for instance the concentration of the precursors (lead acetate and Thiourea), the reaction time and the reaction temperature. The hydrothermal ? based PbS structures were characterized by Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), High-Resolution TEM (HRTEM) and X-Ray Diffraction (XRD). We succeeded synthesizing PbS crystallites having symmetric six- and eight-arms starfish-shaped dendrites by using Thiourea (Tu) as anionic precursor. The decrease of Tu concentration as low as 0.05 M switches the crystal morphology to irregular flower- and cubic ? like shapes, while the increase of the reaction time up to 6 h leads to the formation of mono-arms dendrites. The addition of Triethylamine (TEA) to Tu in the initial reaction blocks the growth of the six-arm starfish shaped PbS crystals and leads to the formation of octahedral and sub-spherical crystals. A morphological change from starfish dendrites to crystalline nanoparticles occurs by replacing Tu by Na2S as a sulfur precursor; this transition from dendrites to nanoparticles was attributed to the nature of the anionic precursor | es_ES |
dc.description.sponsorship | This work was supported by the University of Tunis El Manar (Tunisia) and Ministerio de Economia y Competitividad (Grant Number PID2019-107137RB-C21), Spain | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation.ispartof | Materials Characterization | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject | PbS | es_ES |
dc.subject | Dendrites | es_ES |
dc.subject | Nanoparticles | es_ES |
dc.subject | SEM | es_ES |
dc.subject | TEM | es_ES |
dc.subject.classification | FISICA APLICADA | es_ES |
dc.title | Crystal growth and design of various shapes of PbS micro and nanocrystals from a hydrothermal process | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1016/j.matchar.2021.111036 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-107137RB-C21/ES/MEJORANDO LA PRODUCCION DE ENERGIA SOLAR CON PEROVSKITAS INORGANICAS.SINTESIS/ | es_ES |
dc.rights.accessRights | Cerrado | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada | es_ES |
dc.description.bibliographicCitation | Jemai, S.; Hajjaji, A.; Baig, F.; Harabi, I.; Marí, B.; Bessais, B. (2021). Crystal growth and design of various shapes of PbS micro and nanocrystals from a hydrothermal process. Materials Characterization. 175:1-8. https://doi.org/10.1016/j.matchar.2021.111036 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.1016/j.matchar.2021.111036 | es_ES |
dc.description.upvformatpinicio | 1 | es_ES |
dc.description.upvformatpfin | 8 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 175 | es_ES |
dc.relation.pasarela | S\437661 | es_ES |
dc.contributor.funder | AGENCIA ESTATAL DE INVESTIGACION | es_ES |