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Littérature scientifique sur le sujet « Porosi luminescenti »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 31 juillet 2025

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Articles de revues sur le sujet "Porosi luminescenti"

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Kidalov, V. V., A. F. Dyadenchuk, S. L. Khrypko, and O. S. Khrypko. "Investigation the Structures ZnO:Al/SiOx/PorSi/p-Si/Al." Фізика і хімія твердого тіла 18, no. 2 (2017): 180–83. http://dx.doi.org/10.15330/pcss.18.2.180-183.

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Was investigated the luminescent properties of the system ZnO:Al/SiO2/PorSi/Si, which was formed by the method of spray pyrolysis. The shift of the photoluminescence intensity at wavelengths of 350 - 450 nm happen due to the introduction of ZnO in porous silicon, the intensity increases with increasing concentration of aluminum from 1.5 at.% to 4.5 at.%.

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Cutroneo, Mariapompea, Letteria Silipigni, Petr Malinsky, Petr Slepicka, Domenico Franco, and Lorenzo Torrisi. "Polyvinylalcohol Composite Filled with Carbon Dots Produced by Laser Ablation in Liquids." Polymers 16, no. 10 (2024): 1390. http://dx.doi.org/10.3390/polym16101390.

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Carbon dots (CDs), owing to their excellent photoluminescent features, have been extensively studied for physics preparation methods and for biomedical and optoelectronic device applications. The assessment of the applicability of CDs in the production of luminescent polymeric composites used in LEDs, displays, sensors, and wearable devices is being pursued. The present study reports on an original, environmentally friendly, and low-cost route for the production of carbon dots with an average size of 4 nm by laser ablation in liquid. Jointly, to prove the significance of the study for a wide r

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Behera, Anil K., G. Nirmala Devi, Mathews T, Kamruddin M, and Viswanath R.N. "Microstructure Influenced Visible Luminescence Properties in Pure and Lithium Doped Porous Silicon." Journal of Advanced Research in Dynamical and Control Systems 11, no. 11-SPECIAL ISSUE (2019): 363–69. http://dx.doi.org/10.5373/jardcs/v11sp11/20193043.

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Ibrayev, N. Kh. "FEATURES OF STIMULATED EMISSION OF A MEROCYANINE DYE IN THE PORES OF ANODIZED ALUMINUM." Eurasian Physical Technical Journal 18, no. 2 (2021): 29–34. http://dx.doi.org/10.31489/2021no2/29-34.

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The results of the study of the spectral-luminescent properties and the generation of stimulated emission of merocyanine dye molecules in a porous aluminum oxide films are presented. The addition of silver nanoparticles to the porous aluminum oxide films leads to an increase in the absorption cross section and an increase in the quantum yield of dye fluorescence in the alumina films. However, in the alumina films with silver nanoparticles, the generation of stimulated emission of dye molecules was not detected. We also studied the effect of polymethyl methacrylate polymer deposited on the surf

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Kim, K. B., A. S. Lenshin, F. M. Chyragov, and S. I. Niftaliev. "FORMATION OF NANOSTRUCTURED TIN OXIDE FILM ON POROUS SILICON." Azerbaijan Chemical Journal, no. 3 (September 19, 2023): 83–89. http://dx.doi.org/10.32737/0005-2531-2023-3-83-89.

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Porous silicon is actively used in the fabrication of sensors and detectors because of its large specific surface area, which is an important characteristic for gas adsorption. To improve the operating parameters of the sensors and increase the stability of operation, a film of tin oxide was deposited on the substrate of porous silicon by vacuum-thermal evaporation. The choice of tin is due to its wide forbidden zone, low cost, and high sensitivity. Porous silicon was obtained by the electrochemical anodization of single-crystalline silicon KEF (100). The data on morphology, composition and op

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Pajewski, Łukasz, Łukasz Sójka, Samir Lamrini, Trevor Benson, Angela Seddon, and Sławomir Sujecki. "Experimental investigation of mid-infrared Er:ZBLAN fiber laser." Photonics Letters of Poland 12, no. 3 (2020): 73. http://dx.doi.org/10.4302/plp.v12i3.989.

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In this contribution the diode pumped high-power Er:ZBLAN laser operating at around 2.8 µm is reported. The laser produces 2 W output power with the slope efficiency of 24 % measured with respect to the incident pump power. Full Text: PDF ReferencesS. D. Jackson, "Towards high-power mid-infrared emission from a fibre laser", Nature Photonics 6, 423 (2012). CrossRef V. Portosi, D. Laneve, C. M. Falconi, and F. Prudenzano, "Advances on Photonic Crystal Fiber Sensors and Applications", Sensors 19, (2019). CrossRef M. C. Falconi, D. Laneve, and F. Prudenzano, "Advances in Mid-IR Fiber Lasers: Tell

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Macedo, Andréia Oliveira, Gisele Daltrini Felice, and Antonio Carlos de Barros Corrêa. "Depositional processes and the formation of the paleontological and archeological record at the Lagoa dos Porcos site, Southeastern Piaui." Revista Brasileira de Geomorfologia 26, no. 2 (2025). https://doi.org/10.20502/rbg.v26i2.2662.

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This article addresses the processes involved in the formation of Quaternary sedimentary deposits at the Lagoa dos Porcos site, with emphasis on stratigraphic analysis, with the aim of providing new contributions on the depositional processes involved in the formation of the paleontological and archaeological record of this shallow lake, located in the Serra da Capivara Archaeological Area, in the semi-arid region of Piauí. The research method used a combination of granulometric analysis, verification of morphological properties, radiocarbon dating (AMS) and optically stimulated luminescence (

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Thèses sur le sujet "Porosi luminescenti"

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PEREGO, JACOPO. "Functional Porous Materials: Tailored Adsorption Properties, Flexibility and Advanced Optical Applications." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2020. http://hdl.handle.net/10281/263593.

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L'attività di ricerca si è occupata della progettazione, sintesi e caratterizzazione di materiali porosi. Diverse linee di ricerca sono state perseguite. Materiali porosi per l'assorbimento selettivo e lo stoccaggio di gas. Le proprietà di una serie di polimeri porosi organici sono state studiate attraverso misure di assorbimento di gas e misure di risonanza magnetica nucleare dello stato solido in presenza di una fase gassosa per comprendere la natura delle interazioni tra le molecole ospiti e le pareti dei canali. In particolare, si è verificata l'elevata energia di interazione tra le mole

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Chang, Dahge Chiadin. "Estudo da morfologia do silicio poroso luminescente com nucleação diamantifera." [s.n.], 1999. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261189.

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Orientador: Vitor Baranauskas<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-07-25T01:27:47Z (GMT). No. of bitstreams: 1 Chang_DahgeChiadin_D.pdf: 9826585 bytes, checksum: 5734a3b6b43a08b7eb8b54729d1abb13 (MD5) Previous issue date: 1999<br>Resumo: Foi realizado um estudo de caracterização do silício poroso luminescente feito por corrosão eletroquímica visando sua cobertura com diamante. Foram utilizados eletrólitos com misturas de HF/H2O e de HF/C2H5OH/H2O em diferentes proporções, diferentes tempo

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Tosin, Marcelo Carvalho. "Sintese e caracterização do silicio poroso e de novos revestimentos luminescentes." [s.n.], 2001. http://repositorio.unicamp.br/jspui/handle/REPOSIP/260319.

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Orientadores : Vitor Baranauskas, Alfredo Carlos Peterlevitz<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-07-29T02:19:41Z (GMT). No. of bitstreams: 1 Tosin_MarceloCarvalho_D.pdf: 2129034 bytes, checksum: 39ff2fe9e6e37b45b74c5731f165aca3 (MD5) Previous issue date: 2001<br>Doutorado

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Morais, Alysson Ferreira. "Preparação e estudo de nanotubos luminescentes de hidróxidos duplos lamelares (LDH) contendo íons terras raras." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-20072018-102259/.

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Hidróxidos duplos lamelares (LDHs) são uma classe materiais lamelares com fórmula química [M_(1-x)^II M_x^III (OH)_2 ] [A^(n-)]_(x/n).yH_2 O (onde M^II e M^III são metais di e trivalentes, respectivamente) formados pelo empilhamento de camadas positivamente carregadas de hidróxidos metálicos intercaladas por espécies aniônicas A^(n-). Este trabalho descreve uma estratégia inédita para a produção de nanotubos de LDHs autossuportados (Ø 20 nm e comprimentos >= 100 nm) através da coprecipitação de Zn^(2+), Al^(3+) e Eu^(3+) em pH controlado e sua auto-organização sobre micelas cilíndricas do surf

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Meng, Qingguo. "Preparation, characterization and luminescent properties of organic-inorganic hybrids processed by wet impregnation of mesoporous silica." Clermont-Ferrand 2, 2005. http://www.theses.fr/2005CLF22566.

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Ce travail décrit la synthèse et la caractérisation physico-chimique de nanocomposites hybrides obtenus par imprégnation en voie liquide de bétâ-dicétonates d'Europium dans des silices mésoporeuses structurées aux tensio-actifs de type MCM-48 et MCM-41, post-fonctionnalisées ou non. La caractérisation des matériaux par ICP, spectroscopie électronique, diffraction des rayons X, thermogravimétrie, isothermes d'adsorption d'azote, RMN, spectroscopies UV-Vis et IR a permis de confirmer et de quantifier l'incorporation des complexes dans les pores de ces réseaux de silice. Les propriétés de photolu

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Coulthard, Ian. "X-ray excited optical luminescence and chemical properties of porous silicon." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ31085.pdf.

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Hill, Deborah Ann. "X-ray excited optical luminescence (XEOL) and its application to porous silicon." Thesis, University of Warwick, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302693.

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Crowe, Jonathan William. "Design and Synthesis of Dehydrobenzoannulene Based Covalent Organic Frameworks." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1492098595103764.

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Zhao, Mingrui, and Manish Keswani. "Fabrication of Radially Symmetric Graded Porous Silicon using a Novel Cell Design." NATURE PUBLISHING GROUP, 2016. http://hdl.handle.net/10150/614761.

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A contactless method using a novel design of the experimental cell for formation of porous silicon with morphological gradient is reported. Fabricated porous silicon layers show a large distribution in porosity, pore size and depth along the radius of the samples. Symmetrical arrangements of morphology gradient were successfully formulated radially on porous films and the formation was attributed to decreasing current density radially inward on the silicon surface exposed to Triton (R) X-100 containing HF based etchant solution. Increasing the surfactant concentration increases the pore depth

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Liu, Zhaoting. "Synthesis, characterization and properties of wood-templated oxides with hierarchical porous structures." Troyes, 2009. http://www.theses.fr/2009TROY0004.

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Les nouveaux morph-génétiques poreux matériaux ont des potentielles applications dans les domaines de séparation et purification des matières, de l’adsorption sélective, de la fonction optique et de la conception de capteurs. Mais il est difficile de fabriquer ce genre de matériau par les techniques traditionnelles. Du fait de la diversité de ces matériaux, les structures bois morph-génétiques poreuses sont complexes et sont formées par les organismes eux-mêmes (morph-transformation génétique). Inspiré par cette transformation macro-biologique, la technologie morph-transformation génétique peu

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Livres sur le sujet "Porosi luminescenti"

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International Symposium on Pits and Pores: Formation, Properties, and Significance for Advanced Luminescent Materials (1997 Montréal, Québec). Proceedings of the International Symposium on Pits and Pores--Formation, Properties, and Significance for Advanced Luminescent Materials. Edited by Schmuki P, Electrochemical Society Corrosion Division, Electrochemical Society. Luminescence and Display Materials Division., and Electrochmeical Society Meeting. Electrochemical Society, 1997.

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International, Symposium on Pits and Pores: Formation Properties and Significance for Advanced Luminescent Materials (3rd 2004 Honolulu Hawai). Pits and pores III: Formation, properties, and significance for advanced materials : proceedings of the international symposium. Electrochemical Society, 2006.

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International Symposium on Pits and Pores: Formation, Properties, and Significance for Advanced Luminescent Materials (2nd 2000 Phoenix, AZ). Pits and pores II: Formation, properties, and significance for advanced materials : proceedings of the international symposium. Edited by Schmuki P, Electrochemical Society Corrosion Division, Electrochemical Society. Luminescent and Display Materials Division, and Electrochemical Society Meeting. Electrochemical Society, Inc., 2001.

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4

Symposium F on Porous Silicon and Related Materials (1994 Strasbourg, France). Porous silicon and related materials: Proceedings of Symposium F on Porous Silicon and Related Materials of the 1994 E-MRS Spring Conference, Strasbourg, France, May 24-27, 1994. Elsevier, 1995.

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W, Collins Robert, ed. Advances in microcrystalline and nanocrystalline semiconductors, 1996: Symposium held December 2-6, 1996, Boston, Massachusetts, U.S.A. Materials Research Society, 1997.

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Symposium I on Porous Silicon: Material, Technology, and Devices (1995 Strasbourg, France). Porous silicon--material, technology, and devices: Proceedings of Symposium I on Porous Silicon: Material, Technology, and Devices of the 1995 E-MRS Spring Conference, Strasbourg, France, May 22-26, 1995. Elsevier, 1996.

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Zhang, Zhengwei. The electrochemical synthesis and characterization of graphite intercalation compounds and luminescent porous silicon. 1995.

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Lang, W., R. Herino, and H. Munder. Porous Silicon: Material, Technology and Devices: Proceedings of Symposium 1 on Porous Silicon (European Materials Research Society Symposia Proceedings). Elsevier Publishing Company, 1996.

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Porous silicon science and technology: Winter school, Les Houches, 8 to 12 February, 1994. Springer-Verlag, 1995.

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Porous silicon science and technology: Winter school, Les Houches, 8 to 12 February, 1994 (Centre de physique, Les Houches). Les Editions de Physique, 1995.

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Chapitres de livres sur le sujet "Porosi luminescenti"

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Matsushita, Junichi, S. Yasumatsu, N. Hosaka, et al. "Luminescence Porous Ceramics Using Recycling Glass." In Materials Science Forum. Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-995-4.618.

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Bsiesy, A. "Porous silicon luminescence under cathodic polarisation conditions." In Porous Silicon Science and Technology. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-662-03120-9_18.

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Herino, R. "Luminescence of porous silicon after electrochemical oxidation." In Porous Silicon Science and Technology. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-662-03120-9_4.

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La Ferrara, Vera, Girolamo Di Francia, and Giuseppe Fiorentino. "Luminescent Porous Silicon Nanoparticles as Drug Carrier." In Lecture Notes in Electrical Engineering. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-1324-6_63.

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Reisfeld, Renata. "Luminescence and Nonradiative Processes in Porous Glasses." In Advances in Nonradiative Processes in Solids. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4757-4446-0_13.

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Dumas, Ph, M. Gu, C. Syrykh, et al. "Scanning probe microscopies of luminescent porous silicon layers." In Optical Properties of Low Dimensional Silicon Structures. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2092-0_18.

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Koshida, N. "Interrelation between electrical properties and visible luminescence of porous silicon." In Porous Silicon Science and Technology. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-662-03120-9_19.

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Koshida, N. "Luminescence and related properties of nanocrystalline porous silicon." In Optical Properties. Part 3. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-47055-7_6.

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Vial, J. C. "What can be learned from time resolved measurements on porous silicon luminescence." In Porous Silicon Science and Technology. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-662-03120-9_9.

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Das Sarkar, Madhumita, Debashis Jana, and Kuntal Ghosh. "The Structural Studies of Luminescent Vapour Phase Etched Porous Silicon." In Lecture Notes in Electrical Engineering. Springer India, 2014. http://dx.doi.org/10.1007/978-81-322-1817-3_37.

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Actes de conférences sur le sujet "Porosi luminescenti"

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Ruan, Xiulin, and Massoud Kaviany. "Temperature-Dependent Luminescence Quenching in Random Nano Porous Media." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60363.

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The luminescence quenching of a random, crystalline one-dimensional model porous medium doped with rare-earth elements, is analyzed by considering the transport, transition, and interaction of the fundamental energy carriers. The quenching in nano porous media is enhanced compared to a single crystal, due to multiple scattering, enhanced absorption, and low thermal conductivity. The coherent wave treatment is used to calculate the photon absorption, in order to allow for field interference and enhancement. The luminescent and thermal emission is considered as incoherent. The luminescence quenc

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Martínez-Duart, José M., Ricardo Guerrero-Lemus, and José D. Moreno. "Luminescent porous silicon." In The 8th Latin American congress on surface science: Surfaces , vacuum, and their applications. AIP, 1996. http://dx.doi.org/10.1063/1.51108.

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NOGUCHI, Nobuaki, and Ikuo SUEMUNE. "Photosynthesis of Luminescent Porous Silicon." In 1992 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 1992. http://dx.doi.org/10.7567/ssdm.1992.d-2-3.

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Squire, E. K., P. A. Snow, P. St J. Russell, L. T. Canham, A. J. Simons, and C. L. Reeves. "Light Emission in Periodically Microstructured Porous Silicon." In The European Conference on Lasers and Electro-Optics. Optica Publishing Group, 1998. http://dx.doi.org/10.1364/cleo_europe.1998.cthc5.

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It has been shown experimentally that the periodic microstructuring of the porosity in porous silicon (PS) resonant cavity light emitting devices (RCLEDs) radically improves their emission linewidth and beam quality1. However, an important issue not yet fully addressed is the precise role played by this periodic microstructuring, given that the luminescence is distributed throughout the whole structure and that the low porosity layers are highly absorbing. A greater understanding of this emission process is clearly essential for the optimisation of PS LEDs.

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Makara, Vladimir A., V. S. Stashhuk, and V. B. Shevchenko. "Infrared spectroscopy of luminescent porous silicon." In International Conference on Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics, edited by Sergey V. Svechnikov and Mikhail Y. Valakh. SPIE, 1998. http://dx.doi.org/10.1117/12.306194.

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Tagüeña-Martínez, J. "Luminescent Photonics with Porous Silicon Nanostructures." In STATISTICAL PHYSICS AND BEYOND: 2nd Mexican Meeting on Mathematical and Experimental Physics. AIP, 2005. http://dx.doi.org/10.1063/1.1900495.

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Fauchet, P. M. "Fabrication and Properties of Ultrathin Films of Porous Silicon." In Microphysics of Surfaces: Nanoscale Processing. Optica Publishing Group, 1995. http://dx.doi.org/10.1364/msnp.1995.msab2.

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We have manufactured thin films of light-emitting porous silicon (LEPSi) by electrochemical etching in HF and subsequently lifted them off the silicon wafer by an electropolishing step [1]. The film thickness was varied from 100 μm to 0.1 μm and the porosity ranged from < 40% to ≥ 90%. To insure the structural integrity of the thinner, higher porosity films, they were deposited on sapphire windows where they remain attached by van der Waals or electrostatic forces, in a manner reminiscent of earlier work with ultrathin film of III-V semiconductors [2]. The microstructural, chemical and opti

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Bendorius, Rimgaudas A., Vytautas Jasutis, Vaidas Pacebutas, et al. "Structure investigation of luminescent porous GaAs layers." In Advanced Optical Materials and Devices, edited by Steponas P. Asmontas and Jonas Gradauskas. SPIE, 2001. http://dx.doi.org/10.1117/12.425477.

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Hluzd, Y. V., T. I. Orehovskaya, N. V. Gaponenko, I. S. Molchan, and G. E. Thompson. "Luminescent structures based on porous anodic alumina." In Telecommunication Technology" (CriMiCo 2008). IEEE, 2008. http://dx.doi.org/10.1109/crmico.2008.4676518.

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Fauchet, P. M., Y. Kostoulas, Ju V. Vandyshev, et al. "Ultrafast Electronic Processes in Porous Silicon." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1994. http://dx.doi.org/10.1364/up.1994.wc.16.

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The discovery in 1990 [1] that porous silicon is a strong light emitter in the visible at room temperature has changed our assessment of the usefulness of silicon as an optoelectronic material and raises the possibility of practical silicon light emitters [2]. The luminescence from light emitting porous silicon (LEPSi) usually occurs in the deep red to orange region with a quantum efficiency of a few percents at 300 K and >10% at low temperature. The luminescence decays with a lifetime that ranges from ~1-10 μsec at 300 K to >1 msec at low temperature. More than 15 different models have

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Rapports d'organisations sur le sujet "Porosi luminescenti"

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Tallant, D. R., M. J. Kelly, T. R. Guilinger, and R. L. Simpson. Porous silicon structural evolution from in-situ luminescence and Raman measurements. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/231693.

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