A DISPERSION COMPRISING EU2+ DOPED INORGANIC LUMINESCENT NANOPARTICLES FOR GREENHOUSE APPLICATIONS AND SHEET STRUCTURES AND COATINGS FOR GREENHOUSES COMPRISING SUCH NANOPARTICLES

• Main Authors: JUNG, Ana, PEETERS, Sicco Henricus Godefridus, KAO, Chung-che, VAN OVERBEEK, Sadiq, HSU, Chao-chun
• Format: Patent
• Language: English; French
• Published: 21.01.2021
• Subjects: ADHESIVES; AGRICULTURE; ANIMAL HUSBANDRY; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; DYES; FISHING; FORESTRY; GLASS; HORTICULTURE; HUMAN NECESSITIES; HUNTING; JOINING GLASS TO GLASS OR OTHER MATERIALS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MINERAL OR SLAG WOOL; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PAINTS; PERFORMING OPERATIONS; PHYSICS; POLISHES; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TRANSPORTING; TRAPPING; WATERING

A luminescent layer is described comprising an Eu2+ doped inorganic luminescent material comprising or consisting essentially of the elements Al and/or Si and the elements O and/or N, the doped inorganic luminescent material converting radiation of the UV region between 200 nm and 400 nm of the solar spectrum into the photosynthetically active radiation (PAR) region (400 nm - 700 nm) of the solar spectrum, wherein the Si concentration in the inorganic luminescent material is selected between 0 and 45 at.%, the Al concentration between 0 and 50 at.%, the O concentration between 0 and 70 at.%, the N concentration between 0 and 60 at.% and the Eu2+ between 0.01 and 30 at.%. L'invention concerne une couche luminescente comprenant un matériau luminescent inorganique dopé par Eu2+ comprenant ou constitué essentiellement des éléments Al et/ou Si et des éléments O et/ou N, le matériau luminescent inorganique dopé convertissant le rayonnement de la région UV entre 200 nm et 400 nm du spectre solaire dans la région du rayonnement photosynthétiquement actif (PAR) (400 nm-700 nm) du spectre solaire, la concentration en Si dans le matériau luminescent inorganique étant choisie entre 0 et 45 % atomique, la concentration en Al entre 0 et 50 % atomique, la concentration en O entre 0 et 70 % atomique, la concentration en N entre 0 et 60 % atomique et l'Eu2+ entre 0,01 et 30 % atomique.