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On the Characteristics of Perovskite Structured BiFeO3-PbTiO3 Thin Films: Their Potential to Multifunctional Photovoltaic Applications

Autor: D. M. Silva, E. A. C. Astrath, V. F. Freitas, Jurandir H. Rohling, T. G. M. Bonadio, L. C. Dias, José Antonio Eiras, G. S. Dias, Ivair A. Santos, G. B. Souza, Luiz Fernando Cótica, M. Mazur

Publikováno v: Brazilian Journal of Physics. 51:1215-1223

In this manuscript the multifunctional multiferroic 0.6BiFeO3-0.4PbTiO3 (BFPT) thin films are presented as an interesting alternative for multifunctional photovoltaic applications. The compound is chemically and structurally stable at high temperatur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::69fe110188907cb1662bca494217883f
https://doi.org/10.1007/s13538-021-00925-4

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Photoacoustic and photothermal and the photovoltaic efficiency of solar cells: a tutorial

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

Optical losses are the major drawback to overcome in the solar energy industry and development. Conversion of solar radiation into heat accounts for over 80% of the incident solar energy, which is driven by several aspects like the chosen design and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0037f29cdb70723ebee8ac5e84b9ad3e

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Broadband downconversion in Eu2+,3+/Yb3+ doped calcium aluminosilicate glasses for solar cells applications

Autor: J. F. M. Santos, R. F. Muniz, E. Savi, A. A. S. Junior, G. J. Schiavon, A. N. Medina, J. H. Rohling, M. L. Baesso, S. M. Lima, L. H. C. Andrade, T. Catunda, L. A. O. Nunes

Publikováno v: Journal of Applied Physics. 133:033102

Novel Eu2+,3+/Yb3+ co-doping calcium aluminosilicate glasses prepared under a vacuum atmosphere were developed and characterized from the spectroscopic point of view, as a potential spectral converter for application in solar cells. The emission of n

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1912fe18f0fd36679b7eef5372630cdc
https://doi.org/10.1063/5.0131686

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Air Object Detection Using Pulsar FSR

Autor: A. Kabakchiev, D. Kabakchieva, Ivan Garvanov, Hristo Kabakchiev, Jorge R. Fernandes, H. Rohling, Mark J. Bentum, Vera Behar

Publikováno v: 2021 17th Conference on Electrical Machines, Drives and Power Systems (ELMA).

One possible algorithm of signal processing for airplane detection and parameters estimation using pulsar Forward Scattering Radar (FSR) is proposed. The algorithm for air target detection proposed in the article is intended for pulsar signal process

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a911a4cbd35f1367b534cc58b5d9406
https://doi.org/10.1109/elma52514.2021.9503079

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Spectroscopic investigation and interest of Pr3+-doped calcium aluminosilicate glass

Autor: Francine B. Guimarães, Jurandir H. Rohling, J.R. Silva, L.H.C. Andrade, Mauro Luciano Baesso, Lorena Andrade Nunes, Sandro Marcio Lima, Claudio Yamamoto Morassuti, Yannick Guyot, Georges Boulon

Publikováno v: Journal of Luminescence
Journal of Luminescence, Elsevier, 2019, 210, pp.376-382. ⟨10.1016/j.jlumin.2019.02.051⟩
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

In this report, Pr3+-doped calcium aluminosilicate (CAS) glasses were synthesized and their spectroscopic properties investigated. The present subject was motivated by the red emission of the Pr3+ ion that can be combined with the green-yellow emissi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14a1075f11437920e301a528b157c59b
https://doi.org/10.1016/j.jlumin.2019.02.051

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Spectroscopic investigation and heat generation of Tm3C/Ho3C-codoped aluminosilicate glasses emitting at 2.0 μm

Autor: Luiz Antônio de Oliveira Nunes, Carlos Jacinto, Mauro Luciano Baesso, Tomaz Catunda, Jurandir H. Rohling, Nelson G. C. Astrath, Andressa Novatski, G. S. N. Eliel, Luis C. Malacarne, Tasso O. Sales

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

T m 3 + / H o 3 + -codoped low silica calcium aluminosilicate (LSCAS) glasses were prepared and characterized using optical absorption, luminescence decay, and thermal lens techniques. The emission band at 2.0 µm exhibited an enhancement when the Ho

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ec440873f89bba6abbe2a714026906f

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The Study of Possibility for Airplane Detection Using a Solar FSR System

Autor: Vera Behar, Jorge R. Fernandes, H. Rohling, Dorina Kabakchieva, Ivan Garvanov, A. Kabakchiev, Mark J. Bentum, Hristo Kabakchiev

Publikováno v: 2020 21st International Radar Symposium (IRS).

The article analyses the possibility for survemance airplanes by using solar radio emission in a forward scatter radar system. It’s estimated as the magnitude of SNR at the input of the signal detector calculated depending on the size of airplanes,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0524c9a89b8576bcbb1bb2b13624598e
https://doi.org/10.23919/irs48640.2020.9253948

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Airplane Detection by FSR using cosmic radio emissions

Autor: Ivan Garvanov, Vera Behar, Hristo Kabakchiev, Mark J. Bentum, A. Kabakchiev, Dorina Kabakchieva, H. Rohling, Nikola Petrov

Publikováno v: 2020 IEEE Radar Conference, RadarConf 2020

The paper analyses and compares the possibility for airplanes detection by a FSR system that exploits radio emission from such cosmic bodies as Moon, Sun and pulsars. This possibility is estimated as a magnitude of SNR at the input of the signal dete

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d2e8963d592789b03d88808ee61773b
https://doi.org/10.1109/radarconf2043947.2020.9266428

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Fluorescence line narrowing and Judd-Ofelt theory analyses of Eu3+-doped low-silica calcium aluminosilicate glass and glass-ceramic

Autor: M. Sandrini, N.B. Aranda, Jurandir H. Rohling, V. S. Zanuto, A.N. Medina, Yannick Guyot, Mauro Luciano Baesso, Dominique de Ligny, Robson Ferrari Muniz

Publikováno v: Journal of Luminescence. 201:123-128

Eu-doped calcium aluminosilicate glass and glass-ceramic were synthesized and studied by site-selective spectroscopy. Using both broadband excitation and fluorescence line narrowing techniques, the D 0 5 → F 1 7 emission transition was studied unde

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::efb4a5de86497dbd7e03752aa567b1f3
https://doi.org/10.1016/j.jlumin.2018.04.027

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