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Titre : Antireflective coatings Type de document : texte imprimé Auteurs : Saurabh Kusurkar, Auteur Année de publication : 2013 Article en page(s) : p. 67-72 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anti-réflectance
Revêtement antireflet:Peinture antirefletTags : 'Revêtement optique' Interface Antireflet 'Images fantômes' Optoélectronique 'Interférence destructive' Index. décimale : 667.9 Revêtements et enduits Résumé : An optical coating is one or more thin layers of material deposited on an optical component such as a lens or, mirror, which alters the way in which the optic (Glass ) reflects and transmits light. One of the types of optical coating is an antireflection coating, which reduces unwanted reflections from surfaces.
As light passes through an uncoated glass substrate, approximately 4% will be reflected at each interface. This results in a total transmission of only 92% of the incident light. Applying an AR coating on each surface will increase the throughput of the system and reduce hazards caused by reflections traveling backwards through the system (e.g. ghost images).
Antireflection (AR) coatings have been widely employed in optical and optoelectronic materials, a decrease in light reflection, and thus an increase in the transmittance of light, enables clear viewing with the eyes of glass and displaying surfaces. AR coatings find its application to Image sensors, Lithograph; Light-emitting diodes (LEDs) are a common solid state light source. Also in camera lenses, Solar panels etc where loss of light by reflection is the loss of output and quality of the product.
The principle of AR coating is based on the destructive interference of reflected light from interfaces between air and a film.Note de contenu : - SOME EXAMPLES OF ANTIREFLECTIVE COATINGS BEFORE AND AFTER
- HOW DOES AN ANTI-REFLECTION COATING WORK ?
- ANTIREFLECTIVE POLYMERS : Fluoroacrylate - Fluorosilicate acrylate - Fluoroéthanes
- PERFLUOROPOLYETHERS/PERFLUOROPOLYOXETANES
- TYPES OF ANTIREFLECTIVE COATINGS : Tydex - Single layer MgF coating - V-type single wavelength AR coating - Broadband AR coating - Dual- and triple-band AR coating - Dual band infrared AR coating
- AR COATING - MARKET RESEARCH
- MARKET PLAYER : DSM coating/KhepriCoat - Brewer Science and Dow Chemical Company / ENSEMBLE ARC - DuPont/Teflon AF
- ANTIREFLECTIVE COATINGS - APPLICATION METHODS : Dip coating - Spray coating - Flow coating - PVD (Physical Vapor Deposition) - CVD (Chemical Vapor Deposition)
- AR COATING APPLICATION FIELDSPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19676
in PAINTINDIA > Vol. LXIII, N° 9 (09/2013) . - p. 67-72[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15622 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Coatings for solar panel Type de document : texte imprimé Auteurs : Shibajit Mukherjee, Auteur Année de publication : 2013 Article en page(s) : p. 68-76 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anti-réflectance
Composites
Dioxyde de titane
Energie solaire
Fluorure de magnésium
Générateurs photovoltaïques
GraphèneLe graphène est un cristal bidimensionnel (monoplan) de carbone dont l'empilement constitue le graphite. Il a été isolé en 2004 par Andre Geim, du département de physique de l'université de Manchester, qui a reçu pour cette découverte le prix Nobel de physique en 2010 avec Konstantin Novoselov. Il peut être produit de deux manières : par extraction mécanique du graphite (graphène exfolié) dont la technique a été mise au point en 2004, ou par chauffage d'un cristal de carbure de silicium, qui permet la libération des atomes de silicium (graphène epitaxié). Record en conduction thermique jusqu'à 5300 W.m-1.K-1. C'est aussi un matériaux conducteur.
Hydrophobie
Nanoparticules
Nanotubes
Revêtement antireflet:Peinture antireflet
Revêtements:Peinture
Silicium
SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).
Sol-gel, Procédé
Sulfure de zincIndex. décimale : 667.9 Revêtements et enduits Résumé : Paint/coatings are become increasingly important area of research for solar cells since it can be used for energy generation or improvement in efficiency and durability of existing photovoltaic technologies. The coatings with antireflective, super hydrophobic, transparency, weather scratch resistance etc. function or their combination are being used / attempted for this purpose. The amorphous Si or other thin film Si, cadmium telluride, copper indium gallium selenide etc and 3rd generation technologies such as nano-crystalline dye sensitized solar cell (DSSC) polymer/organic photovoltaic (OPV), hybrid solar cell technologies etc. are very important for coating technologist. With the availabiIity of wide variety of nano & polymeric architecture there exists a good possibility of combining them to get solar coatings for power generation. This can be made possible through shirting research focus on application of inexpensive materials and fabrication methods, disruptive combination materials, self assembly fabrication, morphology & size controls of materials, quantum dots, fullerene or their low cost alternatives etc. The challenge is to overcome the defect density and low mobility developing or combining materials to absorb across visible spectrum and get control led nanostructure architecture. Note de contenu : - BUILDING BLOCK OF A SOLAR PANEL
- FACTORS INFLUENCING SOLAR CELL EFFICIENCY : Thermodynamic efficiency limit - Quantum efficiency - Maximum power point - Fill factor
- TYPES OF SOLAR PANEL : Crystalline solar panels - This film solar of amorphous solar panels
- NEEDS OF COATING ON SOLAR PANEL
- TYPES OF COATING ON SOLAR PANEL : 1. Anti-reflective coating (AR coating) - Sn-doped indium oxide (ITO) AR coatings - Zinc oxide/porous siliocon AR coating - Black silicon AR coating - Magnesium fluoride/zinc sulphide (MgF2/ZnS) double layer AR coating - Sol-gel double layer AR coating - 2. CNT-graphene combined coating - 3. nanoparticle-based coating - 4. Super hydrophobic coating - 5. TiO2 based coatingPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20337
in PAINTINDIA > Vol. LXIII, N° 11 (11/2013) . - p. 68-76[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15933 - Périodique Bibliothèque principale Documentaires Disponible Developments in colour space analysis / Brij Mohal in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 204, N° 4596 (05/2014)
Titre : Developments in colour space analysis Type de document : texte imprimé Auteurs : Brij Mohal, Auteur Année de publication : 2014 Article en page(s) : p. 39-43 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anti-réflectance
Pigments
Réflectivité thermique
Revêtements en bâtiment:Peinture en bâtimentIndex. décimale : 667.6 Peintures Résumé : With the advent of the 21st Century, many challenges and opportunities have arisen. Increased global competition has brought down the prices of speciality pigments that were once were too high for practical use in architectural coatings. Increased legislation for limiting VOCs and the growing consumer awareness of 'green' products has moved the industry toward low or no VOC products in both architectural, as well as industrial coatings. Consumers, when choosing products, are wanting it all - per-formance, quality and colour choice. Consumers want to convey their individuality and colour choice is one of the most expressive ways to accomplish that.
Although colour palettes in general, have grown smaller, since too large a selection makes it difficult to select, it is important to have a wide range of colour types to choose. With the increased competition, product differentiation has become more important. Additionally, with current dispenser technology, that has increased accuracy and more canisters commonly available, the colourant options now available allow for customisation of colourant modules. The colourants offer expansion of colour space in multiple ways: the use of speciality pigments expands the colour palette for façade systems, while maintaining durability. High performance colourants also either maintain or expand colour space, while at the same time increasing the fade resistance. High strength colourants allow for palette expansion by optimising the bases. Probably, one of the strongest statements made in the market are the high opacity colourants.Note de contenu : - Pigment application
- Pigment selection
- IR reflective pigments
- Industrial applications
- Architectural applicationEn ligne : https://drive.google.com/file/d/1sbczD7EbvcjZlolypXL8pkV-8qyUEldQ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21513
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 204, N° 4596 (05/2014) . - p. 39-43[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16262 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Glycerol /phthalic anhydride novel nano composite for microwave absorbing applications Type de document : texte imprimé Auteurs : Batool Abdul Rasool Zaki, Auteur ; Farhan Lafta Rashid, Auteur ; Mohammad N. Al-Baiati, Auteur Année de publication : 2022 Article en page(s) : p. 133-139 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anti-réflectance
Copolymère glycérol anhydride phtalique
Matériaux hybrides
Micro-ondes
Ondes électromagnétiques -- Absorption
Oxyde de fer
Revêtements -- Propriétés thermiques:Peinture -- Propriétés thermiquesIndex. décimale : 668.4 Plastiques, vinyles Résumé : High-efficiency radar wave absorbing material was prepared utilizing nanoparticles poly (glycerol /phthalic anhydride), and the effect of using these nanocomposites with thermal paint on the properties of electromagnetic absorbing was analyzed and investigated. Results show that when the percentage of nano polymers is increased from 1% to 3%, with the presence of 2.5% of iron oxide, the reflectivity loss value rises dramatically. For the reflectivity up to 27.2dB at a frequency of 8.3 GH and a bandwidth of (8.1-8.2GH), there is a clear attenuation of the radar waves, which is confined within a bandwidth of GH (9-9.3GH). This material can be utilized as a high- efficiency radar wave absorbing applications. Note de contenu : - EXPERIMENTAL PART : Preparation of the polymeric nano material - Preparation of different mixtures proportions- Specimens
- RESULTS AND DISCUSSION : Characterization of prepared novel nano co-polymer- Reflectivity loss
- Table 1 : Mixing ratios and weights of the polymeric material and thermal dyeDOI : https://doi.org/10.18280/rcma.320304 En ligne : https://www.iieta.org/download/file/fid/77315 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38205
in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES > Vol. 32, N° 3 (06/2022) . - p. 133-139[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23830 - Périodique Bibliothèque principale Documentaires Disponible
Titre : Industrial displays and touch panels : Optically transparent adhesives improve readability and ruggedness Type de document : texte imprimé Auteurs : Daniel Lenssen, Auteur Année de publication : 2012 Article en page(s) : p. 20-22 Langues : Américain (ame) Catégories : Anti-réflectance
Ecran de visualisation
Verre -- CollageIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Displays are omnipresent nowadays. Not only are they found in portable devices such as mobile phones and tablet PCs, but they are also used in parking ticket terminals, ticket machines, and ATMs. Display requirements have escalated as continuously as the variety of applications; users now expect complete transparency and the utmost quality.
However, liquid crystal displays (LCDs) are difficult to read in bright surroundings (e.g., in direct sunlight). The reason for this is that the displays are often covered by a glass plate to protect them against vandalism. The sunlight is partly reflected at the interfaces, and these reflections superpose the generated image. This effect can be reduced by bonding the glass cover directly to the LCD using an index-matched adhesive. For this purpose, innovative adhesives have been developed that cure by a combination of light and humidity. Reliable curing of adhesive in shadowed areas is possible.
Bonding provides additional benefits beyond improved readability. Contamination caused by dust between the glass plates is prevented. In addition, the glass plate will not fog up in humid surroundings. The ruggedness and resistance to vibrations and shock is also increased. Typical application areas include large-area displays in the automotive, aircraft and military industries.Note de contenu : - Index-matched LCD adhesives
- Challenging requirements
- Bonding processes
- Yellowing resistance and optical transparency
- A better displayEn ligne : http://www.adhesivesmag.com/articles/91369-industrial-displays-and-touch-panels Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18335
in ADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 19, N° 10 (10/2012) . - p. 20-22[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14485 - Périodique Bibliothèque principale Documentaires Disponible
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