Výsledky vyhledávání - "L.A.O. Nunes"

Akademický článek

Vanadium characterization in BTO: V sillenite crystals

Autor: J.F. Carvalho, R.W.A. Franco, C. J. Magon, L.A.O. Nunes, F. Pellegrini, A.C. Hernandes

Publikováno v: Materials Research, Vol 2, Iss 2, Pp 87-91 (1999)

Visible and Infrared Optical Absorption and Electron Paramagnetic Resonance (EPR) techniques have been used to characterize the intrinsic defects in sillenite type crystals: nominally pure Bi12TiO20 (BTO) and doped with vanadium (BTO:V). Optical qual

Externí odkaz: https://doaj.org/article/635e132e78d34a1594b86d2ea7ada366

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Akademický článek

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Eu3+-doped lithium tellurite glasses prepared under vacuum condition: spectroscopic investigation and energy transfer mechanism

Autor: L.H.C. Andrade, S.M. Lima, R.A. Silva, M.R. Devecchi, J.C.S. Moraes, D. de Ligny, L.A.O. Nunes

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP

Made available in DSpace on 2022-04-28T19:51:45Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-06-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5585620291782776401d399ce86d221

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Crystal growth and optical characterization of chromium-doped l-arginine phosphate monohydrate

Autor: L.A.O. Nunes, M. C. Terrile, Simone F.A. Cruz, Jesiel F. Carvalho, Ricardo Costa de Santana

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

l -arginine phosphate monohydrate single crystals doped with Cr3+ ions (LAP:Cr) were grown by slow cooling method, with dimensions up to 10 × 10 × 8 mm3. Chromium ions induce a drastic reduction of overall growth rate and produce a drastic change i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fea04f6765930467de43d8420f503182
https://doi.org/10.1016/j.physb.2018.07.001

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White light generation via up-conversion and blue tone in Er3+/Tm3+/Yb3+-doped zinc-tellurite glasses

Autor: F. A. Ferri, L.A.O. Nunes, Euclydes Marega, Victor Anthony Garcia Rivera

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Yb3+, Er3+ and Tm3+ triply doped zinc-tellurite glass have been prepared containing up to 3.23 wt% of rare-earth ion oxides, were characterized by absorption spectroscopy, excitation, emission and up-conversion spectra. Transparent and homogeneous gl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e42d4a15bb7616447bbd38d1dda9ce76
https://doi.org/10.1016/j.optmat.2017.03.028

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Fluorescence quantum yield of Yb3+-doped tellurite glasses determined by thermal lens spectroscopy

Autor: Francine Bettio Costa, João Carlos Silos Moraes, Sandro Marcio Lima, M. S. Figueiredo, L.A.O. Nunes, J.R. Silva, F.A. Santos, Mauro Luciano Baesso, L.H.C. Andrade, Ana Kely Rufino Souza, A.P. Langaro

Publikováno v: Web of Science
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Made available in DSpace on 2018-11-26T17:16:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-01-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4508e033d468b0f11e68d810e68644b
https://doi.org/10.1016/j.optmat.2016.08.042

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Photoluminescence tuning and energy transfer process from Tb3+ to Eu3+ in GPTMS/TEOS-derived organic/silica hybrid films

Autor: F. S. De Vicente, Dimas R. Vollet, Dario A. Donatti, P. Freddi, Adriano J. G. Otuka, Hermi F. Brito, Cleber Renato Mendonça, L.A.O. Nunes

Made available in DSpace on 2018-12-11T17:17:43Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-05-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq

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Near-infrared light emission of Er3+-doped zirconium oxide thin films: An optical, structural and XPS study

Autor: J.L. Clabel H., V.A.G. Rivera, M. Siu Li, L.A.O. Nunes, E.R. Leite, W.H. Schreiner, E. Marega

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

This paper investigates the near-infrared emission and structural properties of Er 3+ -doped zirconium oxide thin films modified with a fixed content of zinc oxide. The films were obtained by electron beam deposition on Si(1 0 0) substrates, followed

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51ffe40937403ef6b108455858ee3749
https://doi.org/10.1016/j.jallcom.2014.09.007

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Akademický článek

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Influence of nonradiative Auger process in the lanthanide complexes lifetime near interfaces in organic light-emitting diode structures

Autor: L.A.O. Nunes, Angelo Danilo Faceto, Gilmar Conte, Hugo Gallardo, Cristiano Legnani, Marco Cremona, Francisco Eduardo Gontijo Guimarães, Alessandra Pereira, Ivan H. Bechtold, Welber G. Quirino

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

The low efficiency of organic light-emitting diodes based on lanthanide complexes is generally attributed to the triplet-triplet annihilation processes in the regime of high concentration of excited states caused by their long lifetimes and optical l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95d2d86477ba4a8890ec0db06cb181c3
https://doi.org/10.1063/1.5099014

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