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dc.contributor.author
Marín Ramírez, Oscar Alonso
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Alastuey, Patricio
dc.contributor.author
Tosi, Ezequiel
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Orive, Joseba
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Mosquera, Edgar
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Zampieri, Guillermo Enrique
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Suarez, Sergio Gabriel
dc.contributor.author
Comedi, David Mario
dc.contributor.author
Tirado, Monica Cecilia
dc.date.available
2020-04-03T14:59:42Z
dc.date.issued
2018-10
dc.identifier.citation
Marín Ramírez, Oscar Alonso; Alastuey, Patricio; Tosi, Ezequiel; Orive, Joseba; Mosquera, Edgar; et al.; Suppression of the green emission, texturing, solute-atom diffusion and increased electron-phonon coupling induced by Ni in sol-gel ZnNiO thin films; Elsevier Science; Applied Surface Science; 456; 10-2018; 771-780
dc.identifier.issn
0169-4332
dc.identifier.uri
http://hdl.handle.net/11336/101800
dc.description.abstract
Zn1−xNixO thin films (nominal x = 0, 0.01, 0.02, 0.04, 0.1 and 0.2) were synthesized on silicon substrates through a sol-gel/dip-coating technique. Samples were studied by X-ray diffraction, scanning electron microscopy, photoluminescence spectroscopy, Rutherford backscattering spectrometry and depth-profiling X-ray photoelectron spectroscopy. The results from X-ray diffraction show growth in the wurtzite crystal structure for all samples, with cubic NiO being detected as a secondary phase for x = 0.2. While for x = 0 (pure ZnO) no texture is present, for 0 ≤ x ≤ 0.1 strong preferential crystallization along the c-axis is observed. A tendency for Ni diffusion towards the film/Si substrate interface was observed. The formation of substitutional ZnxNi1−xO solid solution for 0.01 ≤ x ≤ 0.04 is suggested by the results. Photoluminescence spectra exhibit strong near band edge UV emission and suppression of deep defect-related emission in the visible upon Ni+2 incorporation into the ZnO lattice. As in pure ZnO, the UV emission in ZnNiO at room temperature is dominated by the first two phonon replica of the excitonic emission, however the LO phonon energy (ħωLO) is reduced by up to ∼15 meV inthe 0 ≤ x ≤ 0.04 range. Due to this reduction of ħωLO, the exciton-phonon coupling increases, in consistency with a corresponding expected increase of the Fröhlich coupling constant with decreasing ħωLO.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
SOL-GEL SYNTHESIS
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Zn1-xNixO
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RUTHERFORD BACKSCATTERING
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ELECTRON-PHONON COUPLING
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Nano-materiales
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Nanotecnología
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Suppression of the green emission, texturing, solute-atom diffusion and increased electron-phonon coupling induced by Ni in sol-gel ZnNiO thin films
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-10-15T17:54:29Z
dc.journal.volume
456
dc.journal.pagination
771-780
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Marín Ramírez, Oscar Alonso. Nanoproject – LAFISO, Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán; Argentina. Instituto de Física del Noroeste Argentino, INFINOA (CONICET-UNT); Argentina
dc.description.fil
Fil: Alastuey, Patricio. Instituto de Física del Noroeste Argentino, INFINOA (CONICET-UNT); Argentina. Nanoproject – LNPD, Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán; Argentina
dc.description.fil
Fil: Tosi, Ezequiel. Nanoproject – LAFISO, Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán; Argentina. Instituto de Física del Noroeste Argentino, INFINOA (CONICET-UNT); Argentina
dc.description.fil
Fil: Orive, Joseba. Laboratorio de Materiales Funcionales a Nanoescala, Departamento de Ingeniería Química, Biotecnología y Materiales, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile; Chile
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Fil: Mosquera, Edgar. Departamento de Física, Universidad del Valle, Cali; Colombia
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Fil: Zampieri, Guillermo. Instituto Balseiro, Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
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Fil: Suarez, Sergio. Instituto Balseiro, Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Comedi, David Mario. Instituto de Física del Noroeste Argentino, INFINOA (CONICET-UNT); Argentina. Nanoproject – LAFISO, Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán; Argentina
dc.description.fil
Fil: Tirado, Monica Cecilia. Nanoproject - LNPD, Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán; Argentina. Instituto de Física del Noroeste Argentino, INFINOA (CONICET-UNT); Argentina
dc.journal.title
Applied Surface Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0169433218317380
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.apsusc.2018.06.169
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