Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Paulo L. Franzen"'
Publikováno v:
Journal of Luminescence. 180:341-347
Pr2O3 doped 26.66B2O3–52.33PbO–16GeO2–4Bi2O3–1Pr2O3 (BPGBPr) glass was synthesized by melt quenching technique. X-ray diffraction confirmed the amorphous nature of the glass and the presence of different vibrational groups was identified by R
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f8701407b4f9b324969a9232ba5af64
https://doi.org/10.1016/j.jlumin.2016.08.019
https://doi.org/10.1016/j.jlumin.2016.08.019
Publikováno v:
Materials Letters. 134:126-129
Passivation of native point defects in ZnO nanowires was successfully achieved by SiO2 deposition. The ZnO nanowires were grown on sapphire by the vapor–liquid–solid method and coated with SiO2 through reactive sputtering deposition. The samples
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bab4a24a48bf7e540bfb8b10815f9f77
https://doi.org/10.1016/j.matlet.2014.07.066
https://doi.org/10.1016/j.matlet.2014.07.066
Publikováno v:
Journal of Luminescence. 153:144-147
In the present work, we have studied the photoluminescence (PL) and decay lifetime of Tb and Eu nanoparticles (NPs) at low temperatures. The NPs were obtained by ion implantation into a SiO2 matrix. Concerning the PL emission of Tb NPs (from 370 to 7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92e5b8ac86327b1d597de18d508f16a3
https://doi.org/10.1016/j.jlumin.2014.03.015
https://doi.org/10.1016/j.jlumin.2014.03.015
Autor:
Anto^nio Eudócio P. De Mattos, Guilherme Sombrio, Paulo L. Franzen, Marcelo Barbalho Pereira, Henri Ivanov Boudinov
Publikováno v:
ECS Transactions. 39:315-320
The quest to improve silicon properties for optoelectronic applications is a challenge for many researchers. The answer appears to rely on microelectronic compatible materials enhanced with embedded nanostructures. We used reactive sputtering to prod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c9b1fc1695c770016c777605e478da5
https://doi.org/10.1149/1.3615208
https://doi.org/10.1149/1.3615208
Autor:
Paulo L. Franzen, Marcelo Barbalho Pereira, Anto^nio Eudócio P. De Mattos, Guilherme Sombrio, Henri Ivanov Boudinov
Publikováno v:
ECS Transactions. 39:103-108
In the present work, we confectioned light emitting SiOx (x
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a677b4343d0461fb774476606f9ed2a0
https://doi.org/10.1149/1.3615182
https://doi.org/10.1149/1.3615182
Autor:
Guilherme Sombrio, Paulo L. Franzen, Paulo A. Soave, Francio Rodrigues, Henri Ivanov Boudinov
Publikováno v:
2015 30th Symposium on Microelectronics Technology and Devices (SBMicro).
Non-stoichiometric silicon nitride layers were sandwiched between indium thin oxide (transparent contact) and n type silicon substrate. These films were deposited by reactive sputtering from silicon target. The composition and thickness were extracte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d19c9197b28b92c91784430d1e15685
https://doi.org/10.1109/sbmicro.2015.7298152
https://doi.org/10.1109/sbmicro.2015.7298152
Engineering of the photoluminescence of ZnO nanowires by different growth and annealing environments
Autor:
C.I. L. Sombrio, Paulo L. Franzen, Henri Ivanov Boudinov, Daniel L. Baptista, André Luis Fernandes Cauduro
Publikováno v:
Fernandes Cauduro, A L, Sombrio, C I L, Franzen, P L, Boudinov, H & Baptista, D L 2015, Engineering of the photoluminescence of ZnO nanowires by different growth and annealing environments . in Proceedings of 30th Symposium on Microelectronics Technology and Devices . IEEE, 30th Symposium on Microelectronics Technology and Devices, Bahia, Brazil, 31/08/2015 . https://doi.org/10.1109/SBMicro.2015.7298151
Optical properties of ZnO nanowires were investigated through photoluminescence (PL) at room and low temperatures. An excitonic structure was observed in the UV band emission and we are able to distinguish between free excitons, bound excitons and do
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b76acfb4bfde678503017bc14524449c
https://doi.org/10.1109/sbmicro.2015.7298151
https://doi.org/10.1109/sbmicro.2015.7298151
Autor:
Paulo L. Franzen, Daniel L. Baptista, André Luis Fernandes Cauduro, Henri Ivanov Boudinov, Caroline I. Lisevski
Publikováno v:
Lisevski, C I, Fernandes Cauduro, A L, Franzen, P L, Boudinov, H & Baptista, D L 2015, Electrical and optical behavior of ZnO nanowires irradiated by ion beam . i Proceedings of the 30th Symposium on Microelectronics Technology and Devices . IEEE Press, 30th Symposium on Microelectronics Technology and Devices, Bahia, Brasilien, 31/08/2015 . https://doi.org/10.1109/SBMicro.2015.7298106
Zinc oxide nanowires have been attracting much interest due to their potential use in electronics and optoelectonics devices. In this work, we report on the photoluminescence and electrical behavior of ZnO nanowires grown by vapor-liquid-solid method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a1b71042333ddb9a57fb22e351a9f12
https://doi.org/10.1109/sbmicro.2015.7298106
https://doi.org/10.1109/sbmicro.2015.7298106
Publikováno v:
28th Symposium on Microelectronics Technology and Devices (SBMicro 2013).
Non-stoichiometric silicon oxy-nitride films were deposited by reactive sputtering. The compositions were obtained quantitatively by Rutherford Backscattering Spectroscopy. After deposition, the samples were thermally treated to activate the radiativ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c3f74aac8f6327af29f9b68b7edccd9
https://doi.org/10.1109/sbmicro.2013.6676160
https://doi.org/10.1109/sbmicro.2013.6676160
Autor:
Paulo L. Franzen, Henri Ivanov Boudinov, Marcelo Barbalho Pereira, R L Maltez, L G Matos, Guilherme Sombrio
Publikováno v:
Journal of Physics D: Applied Physics. 46:235106
Non-stoichiometric silicon nitride films with photoluminescence (PL) properties were synthesized by reactive sputtering from a silicon target. The compositions were obtained quantitatively by Rutherford backscattering spectroscopy (RBS). Thermal anne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2495c81be6b1689bbcce35297ad33186
https://doi.org/10.1088/0022-3727/46/23/235106
https://doi.org/10.1088/0022-3727/46/23/235106