dor_id: 41439

506.#.#.a: Público

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510.0.#.a: Consejo Nacional de Ciencia y Tecnología (CONACyT), Sistema Regional de Información en Línea para Revistas Científicas de América Latina, el Caribe, España y Portugal (Latindex), Scientific Electronic Library Online (SciELO), SCOPUS, Web Of Science (WoS)

561.#.#.u: http://www.fciencias.unam.mx/

650.#.4.x: Físico Matemáticas y Ciencias de la Tierra

336.#.#.b: info:eu-repo/semantics/article

336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

351.#.#.6: http://revistas.unam.mx/index.php/rmf

351.#.#.b: Revista Mexicana de Física

351.#.#.a: Artículos

harvesting_group: RevistasUNAM

270.1.#.p: Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

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270.1.#.d: México

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883.#.#.u: http://www.revistas.unam.mx/front/

883.#.#.a: Revistas UNAM

590.#.#.a: Coordinación de Difusión Cultural

883.#.#.1: http://www.publicaciones.unam.mx/

883.#.#.q: Dirección General de Publicaciones y Fomento Editorial, UNAM

850.#.#.a: Universidad Nacional Autónoma de México

856.4.0.u: http://revistas.unam.mx/index.php/rmf/article/view/14284/13621

100.1.#.a: Romero Paredes, G.; García Salgado, G.; Peña Sierra, R.; Vázquez, M. A.; Aguilar Rodríguez, G.

524.#.#.a: Romero Paredes, G., et al. (2007). FTIR and photoluminescence studies of porous silicon layers oxidized in controlled water vapor conditions. Revista Mexicana de Física; Vol 53, No 006. Recuperado de https://repositorio.unam.mx/contenidos/41439

245.1.0.a: FTIR and photoluminescence studies of porous silicon layers oxidized in controlled water vapor conditions

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Facultad de Ciencias, UNAM

264.#.0.c: 2007

264.#.1.c: 2007-01-01

653.#.#.a: Porous silicon; FTIR spectra; photoluminescence; silicon oxide; structure defects

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-ND 4.0 Internacional, https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es, fecha de asignación de la licencia 2007-01-01, para un uso diferente consultar al responsable jurídico del repositorio por medio de rmf@ciencias.unam.mx

884.#.#.k: http://revistas.unam.mx/index.php/rmf/article/view/14284

041.#.7.h: eng

520.3.#.a: A study is presented on the evolution of the FTIR features and the changes in the photoluminescence (PL) spectra of chemically oxidized porous silicon layers (PSLs) successively aged under controlled conditions. The PSLs were prepared by the electrochemical method to guarantee uniformity over extended areas. Just after the silicon porification process, the FTIR spectra of the PSLs show silicon-hydrogen bands related to the hydrogen terminated porous silicon surface. As the PSLs oxidized, various vibrational modes were modified. The new observed vibrational frequencies are related to the defective silicon oxide formed at the porous silicon surface. The room temperature PL spectra of freshly prepared PSLs show a characteristic peak located at ∼700 nm. The intensity of the PL signal on chemically oxidized samples increased by an order of magnitude; afterwards, when the samples were aged in saturated water vapor conditions, the PL spectra were strongly modified. These changes indicated that the PSL structure is modified by the oxidization processes applied. Analysis of the FTIR data and the behavior of the PL signal enable us to interrelate the quantum size related effects and the formation of some kind of defect in the silicon oxide film over the PSLs. The characteristics of the PSLs reported in this paper are perfectly reproducible in the conditions used for the sample preparation; therefore, these films can be used in different applications.

773.1.#.t: Revista Mexicana de Física; Vol 53, No 006 (2007)

773.1.#.o: http://revistas.unam.mx/index.php/rmf

046.#.#.j: 2020-11-25 00:00:00.000000

022.#.#.a: 2683-2224 (digital); 0035-001X (impresa)

310.#.#.a: Bimestral

264.#.1.b: Sociedad Mexicana de Física, A.C.

758.#.#.1: http://revistas.unam.mx/index.php/rmf

handle: 00f1c351910760cc

harvesting_date: 2020-09-23 00:00:00.0

856.#.0.q: application/pdf

last_modified: 2020-11-27 00:00:00

license_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es

license_type: by-nc-nd

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