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Littérature scientifique sur le sujet « Porosi luminescenti »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 10 mars 2023

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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 et O. S. Khrypko. « Investigation the Structures ZnO:Al/SiOx/PorSi/p-Si/Al ». Фізика і хімія твердого тіла 18, n^o 2 (15 juin 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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Behera, Anil K., G. Nirmala Devi, Mathews T, Kamruddin M et 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, n^o 11-SPECIAL ISSUE (20 février 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, n^o 2 (11 juin 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 surface of the alumina films with a dye on the spectral-luminescent properties and generation of stimulated emission of this dye. An increase in the optical density in the absorption band of the dye and an increase in the fluorescence intensity in samples with a deposited polymethyl methacrylate film are observed. The generation threshold of polymethine dye is reduced by a factor of 40 in the porous aluminum oxide sample with polymethyl methacrylate.

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Pajewski, Łukasz, Łukasz Sójka, Samir Lamrini, Trevor Benson, Angela Seddon et Sławomir Sujecki. « Experimental investigation of mid-infrared Er:ZBLAN fiber laser ». Photonics Letters of Poland 12, n^o 3 (30 septembre 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: Tellurite, Fluoride and Chalcogenide", Fibers 5, 23 (2017). CrossRef M. Michalska, P. Grześ, J. Świderski, "High power, 100 W-class, thulium-doped all-fiber lasers", Phot. Lett. Poland, 11, 109 (2019). CrossRef Y. O. Aydin, V. Fortin, R. Vallée, and M. Bernier, "Towards power scaling of 2.8 μm fiber lasers", Opt. Lett. 43, 4542 (2018). CrossRef S. Crawford, D. D. Hudson, and S. D. Jackson, "High-Power Broadly Tunable 3- μm Fiber Laser for the Measurement of Optical Fiber Loss", IEEE Photonics Journal 7, 1 (2015). CrossRef V. Fortin, F. Jobin, M. Larose, M. Bernier, and R. Vallée, "10-W-level monolithic dysprosium-doped fiber laser at 3.24 μm", Opt. Lett. 44, 491 (2019). CrossRef L. Sójka, et al., "Experimental Investigation of Mid-Infrared Laser Action From Dy3+ Doped Fluorozirconate Fiber", IEEE Photon. Technol. Lett. 30, 1083 (2018). CrossRef M. Pollnan and S. D. Jackson, "Erbium 3 /spl mu/m fiber lasers", IEEE J. Sel. Top. in Quantum Electron., 7, 30 (2001). CrossRef Y. O. Aydin, F. Maes, V. Fortin, S. T. Bah, R. Vallée, and M. Bernier, "Endcapping of high-power 3 µm fiber lasers", Opt. Express 27, 20659 (2019). CrossRef C. A. Schäfer, "Fluoride-fiber-based side-pump coupler for high-power fiber lasers at 2.8 μm", et al., Opt. Lett. 43, 2340 (2018). CrossRef O. Henderson-Sapir, J. Munch, and D. J. Ottaway, "New energy-transfer upconversion process in Er3+:ZBLAN mid-infrared fiber lasers", Opt. Express 24, 6869 (2016). CrossRef F. Maes, V. Fortin, S. Poulain, M. Poulain, J.-Y. Carrée, M. Bernier, and R. Vallée, "Room-temperature fiber laser at 3.92 μm", Optica 5, 761 (2018). CrossRef R. I. Woodward, M. R. Majewski, D. D. Hudson, and S. D. Jackson, "Swept-wavelength mid-infrared fiber laser for real-time ammonia gas sensing", APL Photonics 4, 020801 (2019). CrossRef M. Kochanowicz, et al., "Near-IR and mid-IR luminescence and energy transfer in fluoroindate glasses co-doped with Er3+/Tm3+", Opt. Mater. Express 9, 4772 (2019). CrossRef M. Kochanowicz, et al., "Sensitization of Ho3+ - doped fluoroindate glasses for near and mid-infrared emission", Optical Materials 101, 109707 (2020). CrossRef J. Wang, X. Zhu, M. Mollaee, J. Zong, and N. Peyhambarian, "Efficient energy transfer from Er3+ to Ho3+ and Dy3+ in ZBLAN glass", Opt. Express 28, 5189 (2020). CrossRef M. C. Falconi, D. Laneve, V. Portosi, S. Taccheo, and F. Prudenzano, "Design of a Multi-Wavelength Fiber Laser Based on Tm:Er:Yb:Ho Co-Doped Germanate Glass", J Lightwave Technol 1 (2020). CrossRef K. Anders, A. Jusza, P. Komorowski, P. Andrejuk, and R. Piramidowicz, "Short wavelength up-converted emission studies in Er3+ and Yb3+ doped ZBLAN glasses", J. Lumin. 201, 427 (2018). CrossRef P. Komorowski ,K. Anders ,U. Zdulska,R. Piramidowicz R. "Erbium doped ZBLAN fiber laser operating in the visible - feasibility study", Photonics Lett Pol 9, 85 (2017). CrossRef J. Swiderski, M. Michalska, and P. Grzes, "Broadband and top-flat mid-infrared supercontinuum generation with 3.52 W time-averaged power in a ZBLAN fiber directly pumped by a 2-µm mode-locked fiber laser and amplifier", Applied Physics B 124, 152 (2018). CrossRef V. Fortin, M. Bernier, S. T. Bah, and R. Vallée, "30 W fluoride glass all-fiber laser at 2.94 μm", Opt. Lett. 40, 2882 (2015). CrossRef

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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 molecole di anidride carbonica e gruppi amminici alifatici che genera un'efficiente trasferimento di magnetizzazione tra gli idrogeni del gruppo amminico e il carbonio dell'anidride carbonica. Polimeri iper-reticolati porosi e polimeri organici porosi sono stati studiati mediante assorbimento di metano ad alta pressione (fino a 180 bar) per possibili applicazioni per lo stoccaggio di gas naturale in presenza di reticoli porosi (ANG). Durante il periodo all'estero presso il Bernal Institute sotto la supervisione del Prof. M.J. Zaworotko mi sono occupato dello sviluppo di una serie di framework metallo-organici che presentano flessibilità strutturale. In presenza di un opportuno gas o vapore i reticoli sintetizzati danno luogo a una transizione di fase tra una fase compatta e una fase porosa in maniera repentina. Questo meccanismo è attualmente molto studiato per le possibili applicazioni nell'ambito dello stoccaggio e separazione dei gas. Reticoli metallo-organici contenenti rotori molecolari. Due nuovi reticoli porosi metallo-organici sono stati sviluppati e le loro proprietà di assorbimento e termiche sono state caratterizzate. Inoltre, i due sistemi contengono un rotore molecolare molto mobile anche alle basse temperature come dimostrato da esperimenti di risonanza magnetica nucleare dello stato solido. Materiali porosi per applicazioni nella fotonica. Sono stati sintetizzati alcuni materiali organici covalenti contenenti difenilantracene. Questi campioni presentano elevata resa quantica di fotoluminescenza. In dispersione e in presenza di un sensibilizzatore opportuno questi materiali danno vita ad un fenomeno di up-conversion dovuto all'annichilazione di tripletto con efficienze fino al 15 %. Inoltre, legando chimicamente il sensibilizzatore al reticolo poroso è possibile ottenere dei sistemi per up-conversion autonomi. Infine, nanocristalli di reticoli metallo-organici porosi sono stati cresciuti e le loro proprietà di foto- e radioluminescenza sono state investigate approfonditamente. Inoltre, questi cristalli, dispersi all'interno di una matrice polimerica, sono stai utilizzati per sviluppare degli innovativi scintillatori ibridi per la rivelazione di raggi x e gamma.
The research activity focused on the design, synthesis and characterization of porous organic and hybrid materials. Porous materials for selective gas adsorption and storage. Tailored porous organic frameworks bearing different functional groups have been investigated via gas adsorption analyses and in situ spectroscopic techniques to understand the interaction between the guest phase and the primary adsorption sites installed on pore walls. Specifically, aliphatic amines interact strongly with carbon dioxide molecules resulting in an isosteric heat of adsorption as high as 54 kJ/mol at low loading and this close-contact interaction has been characterized with 2D heterocorrelated NMR sppectroscopy. Hyper.crosslinked polymers and porous organic frameworks have been synthetized and their performance towards high pressure (up to 180 bar) methane adsorption have been evaluated to assess their potential applications in adsorbed natural gas technology (ANG). During a period at Bernal institute (Limerick, Ireland) under the supervision of Prof. M. J. Zaworotko, I developed novel switching metal-organic frameworks that display guest-induced phase transitions between close phases and a porous open phase. During the close to open phase transitions the coordination sphere of the zinc cations inside the structures changes from a square pyramidal to a tetrahedral geometry. Moreover, the threshold pressure for gas adsorption can be manipulated through a mixed-linker approach. These materials are currently investigated for applications in gas storage and separation. Metal-organic frameworks with intrinsic dynamics. Metal organic frameworks built up with rigid aliphatic linkers have been developed and their adsorptive and thermal properties fully characterized. These materials display ultra-fast rotational dynamic even at very low temperature. An in-depth solid state NMR study has been conducted to understand the fast rotation of the organic strut and the influence of guest species hosted inside the pores on its dynamic. Organic and hybrid materials for photonic applications. Emitting porous aromatic frameworks (ePAFs) nanoparticles containing highly fluorescent diphenylanthracene moieties have been developed. This materials display high photoluminescence quantum yield and a fast exciton diffusion inside the amorphous framework. When these nanoparticles are suspended in a solution of a suitable sensitizer the mixture display highly efficient sensitized triplet-triplet annihilation up-conversion with quantum yield up to 15 %. Moreover, PAFs with integrated sensitizers (i-ePAFs) display sensitized up-conversion working as an autonomous nanodevice. Metal-organic frameworks with diphenylanthracene units and zirconium oxo-hydroxo clusters have been developed and their luminescence and radioluminescence have been characterized. These nanocrystals have been embedded in polymeric matrixes to generate efficient and innovative scintillating materials with fast response for x-ray and gamma-ray detection.

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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
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação
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
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 tempos de corrosão e com densidades de corrente entre 10 mA.cm-2 a 30 mA.cm-2. A morfologia do silício poroso foi analisada por microscopia de força atômica dentro do próprio meio líquido para estudo quantitativo da variação da porosidade com os parâmetros da anodização. Os filmes de silício poroso foram recobertos com diamante depositado em diferentes temperaturas e tempos. Observamos que a estrutura de silício poroso/diamante apresenta luminescência na temperatura ambiente mas não pudemos identificar se a forma gausssiana da luminescência é devida ao silício poroso ou ao diamante
Abstract: A study of the properties of anodically etched porous silicon was made prior to and following its coating with diamond. Mixtures of HF/H2O and of HF/C2H5OH/H2O were used as electrolytes in different proportions, for different corrosion times and with current densities in the range of 10 mA.cm-2 to 30 mA.cm-2. The porous silicon morphology was analyzed in-situ (liquid-phase) by atomic force microscopy to study of the variation of the porosity with the anodization parameters. The porous silicon films were covered with diamond deposited at different temperatures and times. It was observed that the porous silicon/diamond structure presents room temperature photoluminescence but it was not possible to determine whether the gausssian shape of the luminescence spectra was due to the porous silicon or to the diamond coating
Doutorado
Doutor em Engenharia Elétrica

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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
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação
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
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 surfactante Plurônico® P-123. A subsequente extração destes agentes estruturantes através de lavagem com metanol resulta em uma rede de nanotubos cilíndricos, ocos e interconectados, formados pela deposição de multicamadas de hidróxidos duplos intercalados pela molécula sensibilizadora ácido benzeno-1,3,5-tricarboxílico (ácido trimésico, BTC). A combinação de Eu3+ nas camadas de hidróxidos e BTC no meio interlamelar resulta em nanotubos com propriedades luminescentes, demonstrando de maneira notável como modificações químicas e morfológicas nos LDHs podem levar ao remodelamento das suas propriedades físico-químicas e consequentemente direcionar suas aplicações de maneira desejável.
Layered double hydroxides are a class of lamellar compounds with chemical formula [M_(1-x)^II M_x^III (OH)_2 ] [A^(n-)]_(x/n).yH_2 O (with M^II and M^III being di and trivalent metals, respectively) that are formed by the stacking of positively charged mixed-valence metal hydroxide sheets intercalated by anionic species A^(n-). This work describes a new strategy for the synthesis of self-supporting mesoporous LDH nanotubes (Ø 20 nm and length >= 100 nm) by coprecipitation of Zn^(2+), Al^(3+) and Eu^(3+) around non-ionic worm-like micelles of Pluronic® P-123 in controlled pH. Subsequent extraction of the structure-directing agent with methanol results in a network of interconnected, well-defined, multi-walled and hollow cylindrical LDH nanotubes intercalated by the sensitizing ligand BTC (1,3,5-benzenetricarboxilate). The combination of Eu^(3+) in the hydroxide layers and BTC in the interlayers results in nanotubes with luminescence properties in a notable demonstration on how chemical and morphological changes in LDHs can lead to materials with tuned physico chemical properties that can be tailored towards a range of applications.

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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 photoluminescence de ces hybrides ont été également évaluées et les mécanismes gouvernant les interactions entre les parties organiques et inorganiques analysés dans le cadre de la théorie de Judd-Ofelt. Des conclusions sont avancées pour le design de systèmes hybrides hautement luminescents pour des températures d'usage de 60-70°C, généralement rédhibitoires pour les complexes organiques seuls

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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, et 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 gradient but has a reverse effect on the pore size distribution. Interestingly, when dimethyl sulfoxide was used instead of Triton (R) X-100 in the etchant solution, no such morphological gradients were observed and a homogeneous porous film was formed.

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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 peut être utilisée dans la fabrication de ses nouveaux matériaux morph-génétiques poreux. Le but de notre recherche est la mise au point des nouvelles méthodes de fabrication des matériaux morph-génétique à partir de biomodèles oxydes de structure poreuse du bois, d’étudier leurs propriétés optiques et de détection de gaz de bois-modèle spécifiques. Dans le présent travail, le biomodèle oxyde de fer, l'oxyde de nickel et l'oxyde de zinc avec les structures morph-génétique du bois sont fabriqués en utilisant la technologie de morph-transformation génétique. Les processus physiques et chimiques de transformation sont analysés et les paramètres de fabrication sont optimisés. Le règlement d'oxydes de microstructures par divers processus de paramètres sont établi. La valeur numérique dans multi échelles de structures poreuses d'oxydes est analysée et les propriétés optiques et de détection de gaz des matériaux morph-génétique poreux sont exploitées dans ce travail
Hierarchical porous materials have displayed important researching and application values at the fields of separation and purification, selective adsorption, optical function, and sensor design etc. Some preparation methods have been designed to fabricate porous materials. But these traditional methods have to use specific equipments and complicated techniques, and obtained porous materials have single pore size distributions with single functions. The morph-genetic transformation technology is a simple processing technology to fabricate re-fined hierarchical porous materials using organ-isms as template. The organisms in nature are the perfect unities of highly delicate structures and effectively complex functions through mil-lions of years of evolution and natural survival law, which prepare plentiful structural tem-plates for hierarchical porous materials. In the present work, wood-templated Fe2O3, ZnO and NiO with hierarchical porous structures were fabricated through replication wood’s morphology and structure. The synthetic mechanism was studied to optimize the parameters of morph-genetic technology, and wood-templated oxides with wood’s structures were fabricated successfully. The porous structures in multi-scales, the optical properties and the gas sensing properties of wood-templated oxides were researched in detail

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Livres sur le sujet "Porosi luminescenti"

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J, Lockwood David, Electrochemical Society. Luminescence and Display Materials Division. et Electrochemical Society. Dielectric Science and Technology Division., dir. Proceedings of the International Symposium on Advanced Luminescent Materials. Pennington, N.J : Electrochemical Society, 1996.

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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. Sous la direction de Schmuki P, Electrochemical Society Corrosion Division, Electrochemical Society. Luminescence and Display Materials Division. et Electrochmeical Society Meeting. Pennington, NJ : 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. Pennington, NJ : 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. Sous la direction de Schmuki P, Electrochemical Society Corrosion Division, Electrochemical Society. Luminescent and Display Materials Division et Electrochemical Society Meeting. Pennington, NJ : Electrochemical Society, Inc., 2001.

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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. Amsterdam : Elsevier, 1995.

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W, Collins Robert, dir. Advances in microcrystalline and nanocrystalline semiconductors, 1996 : Symposium held December 2-6, 1996, Boston, Massachusetts, U.S.A. Pittsburgh, Pa : 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. Amsterdam : Elsevier, 1996.

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Helmut, Föll, dir. Porous semiconductors : Optical properties and applications. London : Springer, 2009.

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9

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

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10

Lang, W., R. Herino et 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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Chapitres de livres sur le sujet "Porosi luminescenti"

1

Matsushita, Junichi, S. Yasumatsu, N. Hosaka, K. Okawa, T. Fujita, Jian Bao Li, Hong Lin et Kwang Bo Shim. « Luminescence Porous Ceramics Using Recycling Glass ». Dans Materials Science Forum, 618–21. Stafa : Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-995-4.618.

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2

Bsiesy, A. « Porous silicon luminescence under cathodic polarisation conditions ». Dans Porous Silicon Science and Technology, 307–22. Berlin, Heidelberg : Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-662-03120-9_18.

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3

Herino, R. « Luminescence of porous silicon after electrochemical oxidation ». Dans Porous Silicon Science and Technology, 53–66. Berlin, Heidelberg : Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-662-03120-9_4.

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4

La Ferrara, Vera, Girolamo Di Francia et Giuseppe Fiorentino. « Luminescent Porous Silicon Nanoparticles as Drug Carrier ». Dans Lecture Notes in Electrical Engineering, 393–96. Dordrecht : Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-1324-6_63.

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5

Reisfeld, Renata. « Luminescence and Nonradiative Processes in Porous Glasses ». Dans Advances in Nonradiative Processes in Solids, 397–423. Boston, MA : Springer US, 1991. http://dx.doi.org/10.1007/978-1-4757-4446-0_13.

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6

Dumas, Ph, M. Gu, C. Syrykh, F. Salvan, J. K. Gimzewski, O. Vatel et A. Hallimaoui. « Scanning probe microscopies of luminescent porous silicon layers ». Dans Optical Properties of Low Dimensional Silicon Structures, 157–62. Dordrecht : 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 ». Dans Porous Silicon Science and Technology, 323–28. Berlin, Heidelberg : 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 ». Dans Optical Properties. Part 3, 121–36. Berlin, Heidelberg : 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 ». Dans Porous Silicon Science and Technology, 137–55. Berlin, Heidelberg : 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 et Kuntal Ghosh. « The Structural Studies of Luminescent Vapour Phase Etched Porous Silicon ». Dans Lecture Notes in Electrical Engineering, 377–84. New Delhi : 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, et Massoud Kaviany. « Temperature-Dependent Luminescence Quenching in Random Nano Porous Media ». Dans 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 quenching and non-linear thermal emission, occurring with increasing irradiation intensity, are predicted.

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2

Martínez-Duart, José M., Ricardo Guerrero-Lemus et José D. Moreno. « Luminescent porous silicon ». Dans 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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3

NOGUCHI, Nobuaki, et Ikuo SUEMUNE. « Photosynthesis of Luminescent Porous Silicon ». Dans 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 et C. L. Reeves. « Light Emission in Periodically Microstructured Porous Silicon ». Dans The European Conference on Lasers and Electro-Optics. Washington, D.C. : 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 et V. B. Shevchenko. « Infrared spectroscopy of luminescent porous silicon ». Dans International Conference on Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics, sous la direction de Sergey V. Svechnikov et 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 ». Dans 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 ». Dans Microphysics of Surfaces : Nanoscale Processing. Washington, D.C. : 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 optical properties of these films have been investigated using a variety of tools, including AFM, XRD, FTIR, cw and time-resolved absorption and luminescence measurements. These films are optically flat (see Fig. 1), do not scatter light, show pronounced Fabry-Perot interference fringes in the transparency region which can extend to photon energies well above the bandgap of crystalline silicon (see Fig. 2) and can have a refractive index as low as 1.2 to 1.3. The peak of the luminescence spectrum, which is determined by quantum size effects and surface chemistry, has no clear relation to the onset of absorption, which is dominated by the largest nanocrystallites. The broad luminescence spectrum splits into a few narrow peaks which are produced by multiple interference (see Fig. 3).

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Bendorius, Rimgaudas A., Vytautas Jasutis, Vaidas Pacebutas, J. Sabataityte, Valentinas J. Snitka, I. Simkiene et H. Tvardauskas. « Structure investigation of luminescent porous GaAs layers ». Dans Advanced Optical Materials and Devices, sous la direction de Steponas P. Asmontas et 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 et G. E. Thompson. « Luminescent structures based on porous anodic alumina ». Dans Telecommunication Technology" (CriMiCo 2008). IEEE, 2008. http://dx.doi.org/10.1109/crmico.2008.4676518.

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Aksenov, Valerii P., G. N. Mikhailova, Johannes Boneberg, Paul Leiderer et H. J. Muenzer. « Thermally stimulated luminescence from porous silicon ». Dans Nonresonant Laser-Matter Interaction (NLMI-10), sous la direction de Mikhail N. Libenson. SPIE, 2001. http://dx.doi.org/10.1117/12.431204.

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Rapports d'organisations sur le sujet "Porosi luminescenti"

1

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

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