Synthesis of low dimensional oxide based complex materials by a vapor-solid method

Javier García-Alonso; David Maestre; Javier Bartolomé; Miguel García-Tecedor; Antonio Vázquez-López; María Taeño; Félix del Prado; Emilio Nogales; Ana Cremades

doi:10.1117/12.2591251

5 March 2021 Synthesis of low dimensional oxide based complex materials by a vapor-solid method

Javier García-Alonso, David Maestre, Javier Bartolomé, Miguel García-Tecedor, Antonio Vázquez-López, María Taeño, Félix del Prado, Emilio Nogales, Ana Cremades

Author Affiliations +

Proceedings Volume 11687, Oxide-based Materials and Devices XII; 116871X (2021) https://doi.org/10.1117/12.2591251
Event: SPIE OPTO, 2021, Online Only

Abstract

Nano and microstructures of ternary oxide compounds, such as nickel gallate, indium-zinc-oxide compounds, and lithium stagnates, have been successfully synthetized by a vapor-solid method. Following this synthesis process, a significant amount of material is produced in an economic and scalable way. NiGa₂O₄ nano- and microneedles are grown using mixtures of Ga₂O₃ powders and Ni and Ga metallic powders as main precursors. In the case of In₂Zn_kO_3+k compounds, the precursor blend contains ZnO and InN or In₂S₃ as a source for indium atoms, producing 1-dimensional or 2-dimentional preferential growth, respectively. The growth of complex branched structures of Li₂SnO₃ has been achieved with the use of SnO₂ and Li₂CO₃. The temperature and precursor selection allow us to engineer the size, grade of complexity and final morphology of the structures. The growth mechanism of the obtained nano and microstructures is discussed and the driven force behind it is identified as anisotropic growth, autocatalytic process and dislocation driven mechanisms, depending on the specific materials and experimental conditions. Ternary compounds will be presented together with their properties characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive x-ray spectroscopy (EDS), transmission electron microscopy (TEM) and Raman spectroscopy techniques. The possibility of synthetizing nanocomposites will be also briefly discussed.

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Javier García-Alonso, David Maestre, Javier Bartolomé, Miguel García-Tecedor, Antonio Vázquez-López, María Taeño, Félix del Prado, Emilio Nogales, and Ana Cremades "Synthesis of low dimensional oxide based complex materials by a vapor-solid method", Proc. SPIE 11687, Oxide-based Materials and Devices XII, 116871X (5 March 2021); https://doi.org/10.1117/12.2591251

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