Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Oracio Barbosa-García"'
Autor:
Alejandra Castro-Carranza, James W. Ryan, Oracio Barbosa-García, J. C. Nolasco, Jürgen Gutowski, Mario Rodríguez, Gabriel Ramos-Ortiz, Juergen Parisi, Emilio Palomares, José-Luis Maldonado
We introduce the use of facilely synthesizable and low-bandgap boron chromophores as donors in planar heterojunction solar cells. We show that simple changes in the compositional properties of these molecules can improve the performance of the device
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fefb11672893afafd6c87ab47fcddb13
https://cronfa.swan.ac.uk/Record/cronfa53750
https://cronfa.swan.ac.uk/Record/cronfa53750
Autor:
P. L. López-de-Alba, Nancy Ornelas-Soto, Leticia López-Martínez, Francisco Javier Acevedo-Aguilar, Victor Contreras, Oracio Barbosa-García, M. A. Meneses-Nava, José L. Maldonado, Gabriel Ramos-Ortiz
Publikováno v:
Applied Spectroscopy. 66:1294-1301
Laser-induced breakdown spectroscopy (LIBS) is evaluated as a potential analytic technique for rapid screening and quality control of anti-diabetic tablets. This paper proposes a simple LIBS-based method for the quantitative analysis of two active ph
Autor:
Mario Rodríguez, Oracio Barbosa-García, Ma. Eugenia Ochoa, José-Luis Maldonado, Rosa Santillan, Gabriel Ramos-Ortiz, Norberto Farfán, Oscar Domínguez, Marco-Antonio Meneses-Nava
Publikováno v:
Polyhedron. 43:194-200
Herein is reported the synthesis and X-ray diffraction analysis for three boron complexes (2a–2c) prepared from the reaction of bidentate ligands (1a–1c) and diphenylborinic acid. Chemical characterization for the borinates is completed with IR,
Autor:
Norberto Farfán, José-Francisco Salinas, Marco-Antonio Meneses-Nava, Gabriel Ramos-Ortiz, Mario Rodríguez, Rosa Santillan, Oracio Barbosa-García, José-Luis Maldonado
Publikováno v:
Solar Energy Materials and Solar Cells. 95:595-601
In this work, we propose the use of Woods metal, which is an eutectic alloy of Pb/Bi/Cd/Sn (25%, 50%, 12.5% and 12.5%, respectively), as a convenient substitute to evaporated aluminum for testing polymeric organic photovoltaic (OPVs) devices. The Woo
Autor:
J. Castañeda-Contreras, Marco-Antonio Meneses-Nava, M.V. Félix, R.A. Rodríguez, Oracio Barbosa-García, Roger Chiu-Zarate
Publikováno v:
Journal of Luminescence. 130:2356-2361
The intensity of erbium up-conversion luminescence could be limited by a saturation effect due to increased pump power. We studied the luminescence saturation of the 550 nm emission on erbium-doped, SiO2–TiO2 sol–gel powders under pulsed excitati
Autor:
Oracio Barbosa-García, Gabriel Ramos-Ortiz, Eduardo Arias, M. Olmos-López, Ivana Moggio, José-Luis Maldonado, Marco-Antonio Meneses-Nava
Publikováno v:
Optical Materials. 29:821-826
The influence of the buckminsterfullerene C60 on photocurrent generation and hole transport properties in polymer films of poly(styrene) (PS) doped with N,N′-bis-(3-tolyl)-N,N′-diphenyl-1,1′-biphenyl-4,4′-diamine (TPD), has been determined an
Autor:
M.V. Félix, Oracio Barbosa-García, R.A. Rodríguez-Rojas, J. Castañeda-Contreras, Marco-Antonio Meneses-Nava
Publikováno v:
Optical Materials. 29:38-42
Spectroscopic properties of erbium ions in SiO 2 -TiO 2 -Er 3+ powders are studied and the nature of the emissions discussed. A strong green luminescence and less intense red and blue emissions were observed in the samples when exciting at 490 nm, 53
Autor:
E De la Rosa-Cruz, S. Hinojosa, Oracio Barbosa-García, Gabriel Ramos-Ortiz, M. A. Meneses-Nava, José-Luis Maldonado
Publikováno v:
Optical Materials. 27:1839-1844
A poly-crystalline YAG matrix was obtained through the precipitation method; this matrix was single and co-doped with ytterbium and erbium ions, i.e., Yb:YAG, Er:YAG and Yb,Er:YAG. It is found that the measured luminescent properties are similar to t
Autor:
Marco-Antonio Meneses-Nava, J. F. Mosiño, J.L. Maldonado-Rivera, J. Castañeda-Contreras, Oracio Barbosa-García
Publikováno v:
Optical Materials. 27:301-305
The TiO2 content was changed from low to high concentration (5–70% molar) in binary erbium doped SiO2–TiO2 powder samples produced by the sol–gel method. Three pumping wavelengths 532, 979 and 1532 nm, were used to study the blue up-conversion
Autor:
Pedro Salas, R.A. Rodríguez, Marco Antonio Meneses, E De la Rosa-Cruz, G. A. Kumar, Luis A. Diaz-Torres, J. M. Hernández, J. F. Mosiño, Oracio Barbosa-García
Publikováno v:
Journal of Applied Physics. 94:3509-3515
The photoluminescence and crystalline structure characterization of undoped and several samarium doped ZrO2 samples are reported. Strong fluorescence emission produced by the transitions 4G5/2→6H5/2,7/2,9/2 of Sm3+ was obtained by the excitation of