EP2347452A2 - Collecteur fluorescent et son utilisation - Google Patents

Collecteur fluorescent et son utilisation

Info

Publication number
EP2347452A2
EP2347452A2 EP09748992A EP09748992A EP2347452A2 EP 2347452 A2 EP2347452 A2 EP 2347452A2 EP 09748992 A EP09748992 A EP 09748992A EP 09748992 A EP09748992 A EP 09748992A EP 2347452 A2 EP2347452 A2 EP 2347452A2
Authority
EP
European Patent Office
Prior art keywords
collector
fluorescence
collector according
substrate
group
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09748992A
Other languages
German (de)
English (en)
Inventor
Jana Quilitz
Andreas BÜCHTEMANN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP2347452A2 publication Critical patent/EP2347452A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02—Details
    • H01L31/0232—Optical elements or arrangements associated with the device
    • H01L31/02322—Optical elements or arrangements associated with the device comprising luminescent members, e.g. fluorescent sheets upon the device
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/88—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing selenium, tellurium or unspecified chalcogen elements
    • C09K11/881—Chalcogenides
    • C09K11/883—Chalcogenides with zinc or cadmium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H01L31/055—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means where light is absorbed and re-emitted at a different wavelength by the optical element directly associated or integrated with the PV cell, e.g. by using luminescent material, fluorescent concentrators or up-conversion arrangements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/10—Homopolymers or copolymers of methacrylic acid esters
    • C08L33/12—Homopolymers or copolymers of methyl methacrylate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/52—PV systems with concentrators

Definitions

  • the invention relates to a fluorescence collector for concentrating and converting solar radiation into electrical energy, which is constructed from a substrate and at least one polymer or sol-gel layer as support structures for at least one type of semiconducting nanoparticles and at least one fluorescent dye.
  • the solar radiation is coupled into the collector, reflected internally and then exits at a defined point at which a photovoltaic cell is arranged. Through this then takes place the conversion of solar energy into electrical energy.
  • a conventional fluorescence collector is understood to mean an optically transparent material of suitable shape, for example a plate form, in which fluorescence dyes are absorbed, which absorb the sunlight incident on the large area of the collector, whereby the emitted fluorescent light is absorbed by internal light Reflection focused to the narrow edges of the collector and there is converted by photovoltaic elements, such as solar cells, into electrical energy.
  • photovoltaic elements such as solar cells
  • at least one edge of the radiator is provided with a photovoltaic cell.
  • the remaining edges and the underside of the collector are mirrored or provided with diffuse reflectors.
  • fluorescent collectors are suitable for their photovoltaic use of solar energy.
  • the advantage of fluorescence collectors over solar cells alone is a cost reduction due to the space-saving nature of comparatively expensive solar cells.
  • a fluorescence collector can capture not only direct, but also diffused sunlight.
  • Another advantage is that the emitted light can be adapted to the spectral sensitivity of the solar cell and no expensive tracking systems are needed.
  • a disadvantage of these conventional fluorescence collectors is that the dye contained absorbs only a relatively small proportion of the solar radiation and thus a large part of the solar spectrum is not used for photovoltaic power generation.
  • ST Bailey et al. thin polymer layers are doped with a plurality of fluorescent dyes and applied to a transparent substrate (US Pat. No. 4,329,535)
  • collector stacks which contain a plurality of spectrally complementary dyes (DE 41 10 123) of the solar spectrum, however Dyes that absorb especially the high-energy UV radiation are not long-term stable.
  • Innovations compared to the dye concentrates described are quantum dot concentrators (US Pat. No. 6,476,312 B1), liquid concentrators (V. Sholin et al., J. Am.
  • a major problem in the preparation of nanocomposite materials containing fluorescent semiconducting nanoparticles is that contact with AIBN initiator radicals during the current thermal polymerization process leads to a decrease in fluorescence quantum yield (C. Woelfle et al., In US Pat Nanotechnology, 2007, 18, 025402). Based on this, it was an object of the present invention to provide a fluorescence collector which eliminates the disadvantages described in the prior art and enables a high quantum efficiency for the fluorescence radiation.
  • a fluorescence collector for concentrating and converting solar radiation into electrical energy which has at least one fluorescent dye at least one type of semiconducting nanoparticles and two support structures for the semiconducting nanoparticles and the at least one fluorescent dye.
  • the surface of the fluorescence collector is completely mirrored except for the coupling-in of solar light and for coupling out the fluorescence radiation specific areas or has diffuse reflectors, so that an internal reflection of the solar radiation entering the collector is made possible.
  • At the decoupling region at least one photovoltaic cell for converting the coupled-out radiation is arranged in e- lectric energy.
  • the semiconducting nanoparticles and the at least one fluorescent dye are arranged in separate carrier structures.
  • the support structures are preferably transparent or formed from transparent materials.
  • Carrier structures may be polymer, sol-gel layers or layers, liquids or the substrate, wherein the substrate in a multilayer hybrid collector can also be undoped. Because of the possible multi-layered or layered structure, any combination is possible here, provided that not both semi-conductive nanoparticles and fluorescent dye are integrated in the same support structure.
  • the present invention thus describes the combination of fluorescent dyes with semiconducting nanoparticles.
  • the long-term stable semiconducting nanoparticles which strongly absorb in the UV range, are combined with fluorescence dyes which have high quantum yields of> 90%.
  • An energy transfer between the spectrally complementary semiconducting nanoparticles and fluorescent dyes is expressly desired.
  • An essential advantage of the present invention compared to the collectors known from the prior art is that almost all spectral regions of the incident sunlight (UV, VIS, NIR) are used for the photovoltaic power generation.
  • a further advantage according to the invention is also that the semiconducting nanoparticles can be embedded in the corresponding matrix without polymerization process and therefore free of radicals.
  • UV polymerization also allowed the fluorescence quantum yield to be nearly unaffected by the polymerization reaction.
  • the separation of semiconducting nanoparticles and fluorescence Dye necessary, ie the semiconducting nanoparticles and fluorescent dyes should not be combined in one and the same support structure. It had surprisingly been found that the combination of fluorescent dyes and semiconducting nanoparticles in one and the same support structure can lead to the destruction of the dye, since semiconducting nanoparticles can apparently also act as photocatalysts (PK Khanna et al., Journal of Luminescence , 2007, 127, 474-482).
  • the at least one polymer layer or layer is preferably formed from a transparent polymer.
  • a transparent polymer This is preferably selected from the group consisting of poly (meth) acrylates, polystyrene, polycarbonates, silicones and cellulose esters, e.g. Cellulose triacetate, and their copolymers.
  • Transparent SoI gel materials in particular those based on silicon, titanium, zirconium and / or aluminum, may be considered as a sol-gel layer or layer.
  • the substrate is preferably made of a material selected from the group consisting of polymers, e.g. Poly (meth) acrylates, polystyrene, polycarbonates, silicones, cellulose esters and their copolymers, in particular polymethyl methacrylates; Glasses, in particular soda-lime glass, borosilicate glass and / or quartz glass; at least one sol-gel layer based on silicon, titanium, zirconium and / or aluminum and / or liquids.
  • polymers e.g. Poly (meth) acrylates, polystyrene, polycarbonates, silicones, cellulose esters and their copolymers, in particular polymethyl methacrylates
  • Glasses in particular soda-lime glass, borosilicate glass and / or quartz glass
  • at least one sol-gel layer based on silicon, titanium, zirconium and / or aluminum and / or liquids e.g. Poly (meth) acrylates, polystyrene, polycarbonates
  • the support structures doped with at least one fluorescent dye may also preferably contain additives, e.g. Free radical scavengers, or contain antioxidants, which lead to increase the dye stability.
  • additives e.g. Free radical scavengers, or contain antioxidants, which lead to increase the dye stability.
  • fluorescent dyes all dyes are suitable which have a fluorescence quantum yield of
  • the dyes should have the greatest possible photostability, i. after one year, preferably after two years, particularly preferably after three and more years, they should have a residual fluorescence of> 50%, preferably> 70%, particularly preferably
  • fluorescent dyes e.g. some perylenediimides of the lumogens
  • the semiconducting nanoparticles may vary in size, shape, or chemical composition, eg, quantum dots / micros / multipods, eg, CdSe, CdS, or core / shell quantum dots / micros / multipods, eg, CdSe / ZnS, CdSe / CdS, CdS / ZnS, or core / multishell quantum dots / -rods / multipods, such as CdSe / CdS / ZnS or CdSe / CdS x ZnSi x / ZnS or CdS / CdS x ZnSi -x / ZnS.
  • quantum dots / micros / multipods eg, CdSe, CdS, or core / shell quantum dots / micros / multipods, eg, CdSe / ZnS, CdSe / CdS, CdS /
  • the shell should have a larger band gap than the core.
  • the center and the arms as well as the arms among each other can be constructed of different semiconducting materials.
  • the chemical composition can also vary within an arm.
  • Semiconductive nanoparticles are preferably composed of materials consisting of either element of the 2nd or 12th group and element of the 16th group of the periodic table, for example CdSe, CdS, ZnS, or of one element of the 13th and one element of the 15th group of the Periodic Table, for example GaAs, InP, InAs, or contain an element of the 14th group of the Periodic Table, for example PbSe.
  • the particles must be crystalline, monocrystalline or predominantly crystalline or monocrystalline.
  • the semiconducting nanoparticles must show the "quantum-size" effect, ie the semiconducting nanoparticles must be of the order of magnitude of the Boron exciton radius, thus the bandgap and the emitted fluorescent light can be controlled directly by the particle size and geometry.
  • quantum dots are spherical particles.
  • Quantum electrodes are rod-shaped particles, ie the length and their diameter are different.
  • Multipods eg tripods, tetrapods, have a center from which at least two arms (diodes) emanate. Each arm has the characteristic features of nanorods.
  • the arms may be the same or different lengths and may have different diameters, wherein the diameter along an arm need not necessarily be constant.
  • the center may consist of a different semiconducting material than the arms, which may also have a different crystal structure than the center. The crystal structure and the semiconducting material that makes up the arms can be different for each arm and also change within an arm.
  • Surface of the semiconducting nanoparticles preferably be modified with surface ligands such as amines, carboxylates, phosphines, Phosphinoxi-, thiols, mercaptocarboxylic acids, thiol alcohols, amino alcohols, monomers or polymers.
  • the ligands may be adsorbed or anionically, cationically or covalently bound to the surface of the semiconducting nanoparticle. They must cover at least part of the surface of the semiconducting nanoparticle.
  • the collector consists of a hybrid collector.
  • Hybrid collectors are understood as meaning a transparent substrate (eg glass or Plexiglas) doped with at least one fluorescent dye or nanoparticles, onto which a polymer or sol gel layer is applied, which contains at least one sort of semiconducting nanoparticles or a fluorescent dye contains.
  • the hybrid collec- tors have a multilayer structure.
  • Multilayer hybrid collectors are understood as meaning a plurality of carrier substrates coated on top of one another, for example a transparent substrate, for example a glass or polymer, for example Plexiglas, or a transparent substrate doped with at least one fluorescent dye, for example a polymer, such as Plexiglas, onto which several polymer layers are applied containing various fluorescent substances, eg fluorescence dyes, semiconducting nanoparticles, with the possibility of partial layer penetration.
  • At least one polymer layer must have at least one Contain sort of semiconducting nanoparticles.
  • the polymer layers may also contain at least one fluorescent dye.
  • a second variant provides that the collector consists of a collector stack.
  • a collector stack is an arrangement (stacking) of a plurality of collector plates and / or hybrid collectors.
  • Collector plates are polymer layers or polymer plates which contain at least one type of semiconducting nanoparticles or at least one fluorescent dye.
  • Collector stacks combine one or more polymer plates and / or hybrid collectors containing at least one sort of semiconducting nanoparticles with at least one collector plate and / or hybrid collectors containing one or more fluorescent dyes.
  • a polymer plate should have a thickness between 0.5 to 10 mm, preferably 1 to 5 mm.
  • the collector stack preferably contains a plurality of solar cells.
  • the collector consists of a liquid-solid collector, wherein the substrate is formed from an encapsulated glass case, in the cavity of which are contained in a solvent-dispersed semiconductive nanoparticles, wherein on the substrate at least one with one or more Fluorescent dyes doped polymer layer is applied.
  • the encapsulation of the glass box may be achieved by means of a suitable adhesive, e.g. Epoxy adhesive, or by means of a glass solder (low-melting glass) done.
  • a polymer or sol-gel layer preferably has a thickness in the range of 10 nm to 10 mm.
  • the substrate preferably has a thickness in the range from 0.5 to 10 mm, in particular from 3 to 5 mm.
  • the substrate and the at least one polymer layer have a substantially identical refractive index, ie, the refractive indices differ by a maximum of 0.2, so that the boundary surface or interfaces to the surrounding air are determined for the total reflection of the emitted light.
  • the fluorescence collectors according to the invention are preferably provided on one edge with a photovoltaic cell, e.g. a solar cell provided, which serves to generate electrical energy. It should contact the highest possible contact medium
  • Collector to be coupled.
  • the remaining edges and the underside of the collector are mirrored or provided with a diffuse reflection layer.
  • a special bandstop filter e.g. a photonic crystal layer may be applied, which is as transparent as possible to incident light, but prevents as far as possible or at least greatly reduces the escape of the e-centered, long-wave-shifted fluorescence light by reflection.
  • the fluorescence collectors of the invention can be used in conjunction with solar thermal systems for the simultaneous production of thermal
  • the absorbed energy which is not emitted in the form of emitted light but in the form of heat, can be dissipated by a heat transfer material, eg water / glycol mixtures.
  • the thermal energy gained in this way can eg be used to heat water or to convert it thermal energy in other forms of energy, such as electrical, mechanical or chemical energy can be used.
  • Fig. 1 shows a first variant according to the invention in the form of a collector stack.
  • Fig. 2 shows a second variant according to the invention in the form of a hybrid collector.
  • FIG 3 shows a third variant according to the invention in the form of a multilayer hybrid collector.
  • FIG. 4 shows a fourth variant according to the invention in the form of a liquid-solid hybrid collector.
  • FIG. 5 shows a fifth variant according to the invention in the form of a multilayer hybrid collector.
  • FIG. 6 shows a sixth variant according to the invention in the form of a two-layered hybrid collector.
  • FIG. 1 shows a variant of a fluorescence collector according to the invention, which is based on a collector stack.
  • the collector has diffuse reflection layers or reflective coatings 2 and 2 'on the underside and on three edges of the polymer plate.
  • FIG. 2 shows a further variant according to the invention, in which a substrate 5 is coated with a polymer layer 6 on the side facing the solar radiation.
  • the polymer or sol-gel layer 6 contains the semiconducting nanoparticles and in the substrate of the fluorescent dye.
  • the underside and the three edges of the collector have a reflective coating 2 or 2 ', which may also be a diffuse reflection layer as well.
  • FIG. 3 shows a further variant according to the invention, which is based on a multilayer hybrid collector.
  • This consists of an undoped transparent substrate 7.
  • On the substrate further polymer layers 9, 9 'and 9' 'are deposited, in which at least one fluorescent dye and a variety of semiconducting nanoparticles are included.
  • the semiconducting nanoparticles and the fluorescent dye are in different layers.
  • FIG. 4 shows a variant of the collector according to the invention, which is based on a liquid-solid hybrid collector.
  • the semiconducting nanoparticles 10 are encapsulated in a solvent 11 in the substrate 12.
  • the substrate consists, for example, of a glass case, wherein the encapsulation of the glass frame can be effected by means of an adhesive, for example an epoxy adhesive, or a glass solder.
  • the collector shown here has a polymer layer 13 which is doped with the fluorescent dye.
  • FIG. 5 shows a further variant according to the invention, which is based on a multilayer hybrid collector.
  • This consists of a transparent substrate 8, which is doped with at least one fluorescent dye and on the semiconducting nanoparticle-containing polymer layers 9, 9 'are deposited.
  • the variant described in FIG. 5 also has a reflective coating or diffuse reflection layers on the underside and on three edges of the collector. The incident solar radiation 3 is converted by means of the solar cell 1 into electrical energy.
  • FIG. 6 shows a further variant according to the invention, which is based on a two-layered hybrid collector.
  • This contains two undoped substrates 7 and 7 'and two layers 9 and 9' containing the fluorescent dye or the nanoparticles.
  • the two substrate layers 7 and 7 ' are separated from one another by a layer 9 containing the fluorescent dye or the nanoparticles, while the second layer 9' is applied to the uppermost substrate 7 '.
  • either layer 9 may contain nanoparticles or the fluorescent dye; The same applies to the layer 9 '.
  • the fluorescence collector shown in this embodiment has two solar cells 1 and 1 ', which are arranged on the non-mirrored end of the fluorescence collector. The remaining sides have a mirror coating 2, 2 '.
  • Lauryl methacrylate (LMA), 20% ethylene glycol dimethacrylate (EGDM) and 0.1% of the UV initiator Darocure 4265 are weighed together with 0.025 to 1.0% CdSe core / multicell quantum dots or CdSe core / shell nanorods and homogenized by means of stirring and a sonotrode.
  • the batch is filtered through a 5 micron PTFE syringe filter in a cuvette with a size of up to 10 cm x 10 cm x 0.5 cm and degassed at 200 mbar in a vacuum oven.
  • the UV polymerization is carried out for 10 min under nitrogen purging.
  • the plate is removed from the cuvette and polymerized for 1 to 2 hours under UV irradiation.
  • a cuvette consists of two glass plates and a fluoro-ethylene-polymer seal, which serves as a spacer for the two glass plates. The cuvette is held together with metal clamp
  • a 1% layer of the fluorescent dye Lumogen F Red 305 is prepared by dissolving the dye in a 10% PMMA / CHCl 3 solution and adding 3 ml of the solution to a glass (5 cm x 5 cm x 0 , 3 cm). The layer is allowed to dry overnight at room temperature and then annealed for 30 min at 60 0 C. Subsequently, 1% CdSe core / shell nanorods are dispersed in a 7% PMMA / CHC1 3 - solution using a sonotrode. 2 g of the solution are applied to the F Red / PMMA layer. After drying of the layer, the sample is annealed for 30 min at 60 0 C.
  • a layer of 1% of the fluorescent dye Lumogen F Red 305 is prepared by dissolving the dye in a 10% PMMA / CHCl 3 solution and adding 3 ml of the solution to a glass (5 cm x 5 cm x 0 , 3 cm). Leave the layer overnight dry at room temperature and anneals it followed by 30 min at 60 0 C. Subsequently strength PMMA / CHCl be in a 9% 3 solution CdSe core / multishell- quantum dots (1%, based on. PMMA dry matter) raschall dispersed by UIT. It will be 2 g of
  • QD / PMMA / CHCl 3 solution is applied to the F red / PMMA layer and after evaporation of the solvent, the layer is annealed for 30 min at 60 0 C. Subsequently, in a 7% PMMA / CHCl 3 solution CdSe core / shell nanorods (1% with respect to PMMA dry matter) dispersed by means of a sonotrode. 2 g of the solution are applied to the F Red / QD / PMMA layer. The layer is also after drying for 30 min at 60 0 C annealed.
  • the percentages of the fluorescent particles given in the examples are to be understood as percent by weight based on the polymer dry mass.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Photovoltaic Devices (AREA)

Abstract

L'invention concerne un collecteur fluorescent conçu pour concentrer et transformer le rayonnement solaire en énergie électrique. Ce collecteur est constitué d'un substrat et d'au moins une couche polymère ou sol-gel en tant que structures de support pour au moins un type de nanoparticules semi-conductrices et au moins un colorant fluorescent. Le rayonnement solaire entre dans le collecteur, se réfléchit à l'intérieur du collecteur et sort au niveau d'un emplacement défini où se situe une cellule photovoltaïque destinée à transformer l'énergie solaire en énergie électrique.
EP09748992A 2008-10-16 2009-10-16 Collecteur fluorescent et son utilisation Withdrawn EP2347452A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008052043A DE102008052043A1 (de) 2008-10-16 2008-10-16 Fluoreszenz-Kollektor und dessen Verwendung
PCT/EP2009/007453 WO2010043414A2 (fr) 2008-10-16 2009-10-16 Collecteur fluorescent et son utilisation

Publications (1)

Publication Number Publication Date
EP2347452A2 true EP2347452A2 (fr) 2011-07-27

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EP09748992A Withdrawn EP2347452A2 (fr) 2008-10-16 2009-10-16 Collecteur fluorescent et son utilisation

Country Status (4)

Country Link
US (1) US20120060897A1 (fr)
EP (1) EP2347452A2 (fr)
DE (1) DE102008052043A1 (fr)
WO (1) WO2010043414A2 (fr)

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US20120060897A1 (en) 2012-03-15
WO2010043414A2 (fr) 2010-04-22
DE102008052043A1 (de) 2010-04-22
WO2010043414A3 (fr) 2010-08-26

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