Abstract:
Die Erfindung betrifft plättchenförmige Effektpigmente, dadurch gekennzeichnet, dass sie aus transparenten oder semitransparenten Materialien bestehen und eine Rillen- oder Gitterstruktur aufweisen, Verfahren zur ihrer Herstellung sowie ihre Verwendung.
Abstract:
A composition is provided, including one or more quantum dots and at least one organic emitter. Further, a formulation including the composition, a use of the formulation and a device comprising the composition or formulation is provided.
Abstract:
The present invention relates to photovoltaic cells comprising group IV-VI semiconductor nanocrystals as photoactive components. In particular, these nanocrystals are of core-shell or core-alloyed shell configuration, each comprising a core of a first group IV-VI semiconductor material having a selected band gap energy, and either a core-overcoating shell consisting of a second group IV-VI semiconductor material or a core-overcoating alloyed shell consisting of an alloy of said first group IV-VI semiconductor material and a second group IV-VI semiconductor material, respectively.
Abstract:
An electronic device comprising a quantum dot and an organic host, a mixture comprising a quantum dot and an organic host, a quantum dot, a method for preparing a quantum dot (QD), and a formulation including the mixture or the quantum dot are provided.
Abstract:
The invention relates to novel manganese dioxide electrodes containing modified, electrochemically active manganese dioxide, a method for their production and their use in primary electrochemical cells. The manganese dioxide electrode contains coated or uncoated inorganic particles, in which the carrier particles consist of a material chosen from the group: mica, SiO2, Al2O3, ZrO2 and ZnO.
Abstract:
A light emitting device (10) comprises pluralities of aligned nanorods. A display device (100) includes the light emitting device (10), a light source unit (50), and a control unit (60) configured to operate the electrode arrangement (20), i.e. provide electric voltage between electrodes (22A, 22B) of appropriate pixels (12) to modulate emission of the corresponding nanorods. By selectively modulating emission of nanorods in different pixels of the device (10), variation of displayed images can be achieved. The light source (50) is configured to illuminate the nanorods by a relatively short wavelength, e.g. in the UV or violet range, thereby providing optical pumping to the nanorods. The perpendicular alignment axes of the nanorods within two pixel groups (12A, 12B) enable generation of an illumination pattern having two orthogonal polarizations (PI, P2). Such illumination patterns can be used to provide a three-dimensional effect in display systems and enable a viewer using polarizer glasses to observe three-dimensional images. A patterned polarization filter is preferably located in the optical path of the emitted light to improve the polarization ratio of the emitted light.
Abstract:
The present invention relates to photovoltaic cells comprising group IV-VI semiconductor nanocrystals as photoactive components. In particular, these nanocrystals are of core-shell or core-alloyed shell configuration, each comprising a core of a first group IV-VI semiconductor material having a selected band gap energy, and either a core-overcoating shell consisting of a second group IV-VI semiconductor material or a core-overcoating alloyed shell consisting of an alloy of said first group IV-VI semiconductor material and a second group IV-VI semiconductor material, respectively.
Abstract:
The optical display device comprises a region of nanostructures operable as an optically active media (4), such that said nanostructures are responsive to input electromagnetic radiation, e.g. a UV source (2) with a backlight diffuser (1), to emit output electromagnetic radiation, and an arrangement of electrodes (3,5) being configured to create an external electric field to said region of nanostructures, said region of nanostructures and said arrangement of electrodes defining together a pixel arrangement of said display devices; said external electric field affecting said region of nanostructures to selectively modulate emission of said output electromagnetic radiation, e.g. emitted light, which is an output of a pixel element of the display device. Layer (6) is transparent in the visible range and reflective or absorbing in the UV range. Liquid crystal layer (7) is arranged such that the color of the emitted light corresponds to the color of the pixel of the liquid crystal layer (7).
Abstract:
The present invention provides and optical display device and a method for use in displaying an image. The optical display device comprises An optical display device comprising: at least one region of nanostructures operable as an optically active media, such that said nanostructures are responsive to input electromagnetic radiation to emit output electromagnetic radiation, and an arrangement of electrodes being configured and operable to be selectively addressable to create an external electric field to said at least one region of nanostructures, said region of nanostructures and said arrangement of electrodes defining together a pixel arrangement of said display device; said external electric field affecting said at least one region of nanostructures to selectively modulate emission of said output electromagnetic radiation, said output electromagnetic radiation being an output of at least one pixel element of the display device.
Abstract:
Die vorliegende Erfindung betrifft Pigmente auf der Basis von Zylindern oder Prismen, wobei die Höhe der Zylinder oder Prismen 100 nm bis 500 µm beträgt und der Durchmesser der Grundfläche der Zylinder oder die kürzeste Diagonale der Grundfläche der Prismen 100 nm bis 500 µm beträgt und die Zylinder oder Prismen aus nebeneinander angeordneten und in Richtung der Höhenachse der Zylinder oder der Prismen liegenden Röhren und/oder Stäben bestehen. Weiterhin betrifft die vorliegende Erfindung Verfahren zur Herstellung dieser Pigmente sowie deren Verwendung in Farben, Lacken, Druckfarben, Kunststoffen, Folien, kosmetischen oder pharmazeutischen Formulierungen, keramischen Materialien, Gläsern, Papier, zur Lasermarkierung, in Sicherheitsmaterialien, im Wärmeschutz, zur Saatguteinfärbung, zur Lebensmitteleinfärbung, in Arzneimittelüberzügen, in Trockenpräparaten, in Pigmentpräparationen, für analytische Zwecke, als Schalter oder als Tracer.