Hydrothermal Synthesis of Ni3TeO6 and Cu3TeO6 Nanostructures for Magnetic and Photoconductivity Applications
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Título: | Hydrothermal Synthesis of Ni3TeO6 and Cu3TeO6 Nanostructures for Magnetic and Photoconductivity Applications |
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Autor/es: | Fernández-Catalá, Javier | Singh, Harishchandra | Wang, Shubo | Huhtinen, Hannu | Paturi, Petriina | Bai, Yang | Cao, Wei |
Grupo/s de investigación o GITE: | Materiales Carbonosos y Medio Ambiente |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Palabras clave: | Transition metal tellurates | Hydrothermal synthesis | Optical properties | Photoconductivity | Magnetism |
Fecha de publicación: | 9-mar-2023 |
Editor: | American Chemical Society |
Cita bibliográfica: | ACS Applied Nano Materials. 2023, 6(6): 4887-4897. https://doi.org/10.1021/acsanm.3c00630 |
Resumen: | Despite great attention toward transition metal tellurates especially M3TeO6 (M = transition metal) in magnetoelectric applications, control on single phasic morphology-oriented growth of these tellurates at the nanoscale is still missing. Herein, a hydrothermal synthesis is performed to synthesize single-phased nanocrystals of two metal tellurates, i.e., Ni3TeO6 (NTO with average particle size ∼37 nm) and Cu3TeO6 (CTO ∼ 140 nm), using NaOH as an additive. This method favors the synthesis of pure NTO and CTO nanoparticles without the incorporation of Na at pH = 7 in MTO crystal structures such as Na2M2TeO6, as it happens in conventional synthesis approaches such as solid-state reaction and/or coprecipitation. Systematic characterization techniques utilizing in-house and synchrotron-based characterization methods for the morphological, structural, electronic, magnetic, and photoconductivity properties of nanomaterials showed the absence of Na in individual particulate single-phase MTO nanocrystals. Prepared MTO nanocrystals also exhibit slightly higher antiferromagnetic interactions (e.g., TN-NTO = 57 K and TN-CTO = 68 K) compared to previously reported MTO single crystals. Interestingly, NTO and CTO show not only a semiconducting nature but also photoconductivity. The proposed design scheme opens the door to any metal tellurates for controllable synthesis toward different applications. Moreover, the photoconductivity results of MTO nanomaterials prepared serve as a preliminary proof of concept for potential application as photodetectors. |
Patrocinador/es: | Authors thank European Union-Next Generation EU, MINECO, and University of Alicante for a postdoctoral research grant (MARSALAS21-09), Jenny and Antti Wihuri Foundation, ERC (European Research Council) Starting Grant project UNIFY (grant agreement number 101039110), and Consolidator Grant CATCH (grant agreement no. 101002219). |
URI: | http://hdl.handle.net/10045/132784 |
ISSN: | 2574-0970 |
DOI: | 10.1021/acsanm.3c00630 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2023 The Authors. Published by American Chemical Society. Creative Commons Attribution 4.0 International License (CC BY 4.0) |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1021/acsanm.3c00630 |
Aparece en las colecciones: | INV - MCMA - Artículos de Revistas Investigaciones financiadas por la UE |
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Fernandez-Catala_etal_2023_ACSApplNanoMater.pdf | 7,25 MB | Adobe PDF | Abrir Vista previa | |
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