Class / Patent application number | Description | Number of patent applications / Date published |
252301330 | With inorganic luminescent material | 14 |
20100051870 | Semiconductor nanocrytals and compositions and devices including same - A semiconductor nanocrystal capable of emitting light with an improved photoluminescence quantum efficiency. The present invention further relates to compositions and devices including semiconductor nanocrystals capable of emitting light with an improved photoluminescence quantum efficiency. A semiconductor nanocrystal wherein the semiconductor nanocrystal is capable of emitting light with a photoluminescence quantum efficiency greater than about 50% upon excitation and including a maximum peak emission with a FWHM less than 20 nm is disclosed. Also disclosed are a device, a population of semiconductor nanocrystals, and a composition including a semiconductor nanocrystal wherein the semiconductor nanocrystal is capable of emitting light with a photoluminescence quantum efficiency greater than about 50% upon excitation and including a maximum peak emission with a FWHM less than 20 nm. A semiconductor nanocrystal that is capable of emitting light upon excitation with a photoluminescence quantum efficiency greater than about 90%. Also disclosed are a device, a population, and a composition including a semiconductor nanocrystal. | 03-04-2010 |
20100207066 | POLYMER-NANOCRYSTAL QUANTUM DOT COMPOSITES AND OPTOELECTRONIC DEVICES - Disclosed are compositions including semiconducting polymers and quantum dot nanocrystals. Also disclosed are optoelectronic devices prepared from semiconducting polymers and quantum dot nanocrystals. Also are disclosed methods of increasing the quantum efficiency in optoelectronic devices and methods of generating a photocurrent. | 08-19-2010 |
20100224832 | Modified nano-dot, fabrication method thereof and composition element thereof - The present invention discloses a modified nano-dot and a fabrication method thereof. The modified nano-dot comprises a surface portion having a functional group and a core portion comprising a polymeric metal oxide, polymeric metalloid oxide or polymeric metal alloy oxide. The mean particle size of the modified nano-dot is 1-100 nm, preferably 1-10 nm. The modified nano-dot capable of modulating a carrier flux can be further applied to the element manufacture in the organic semiconductor industry, optoelectronics industry, and solar cell industry. | 09-09-2010 |
20120061616 | MODIFIED NANO-DOT, FABRICATION METHOD THEREOF AND COMPOSITION ELEMENT THEREOF - The present invention discloses a modified nano-dot and a fabrication method thereof. The modified nano-dot comprises a surface portion having a functional group and a core portion comprising a polymeric metal oxide, polymeric metalloid oxide or polymeric metal alloy oxide. The mean particle size of the modified nano-dot is 1-100 nm, preferably 1-10 nm. The modified nano-dot capable of modulating a carrier flux can be further applied to the element manufacture in the organic semiconductor industry, optoelectronics industry, and solar cell industry. | 03-15-2012 |
20120138857 | SIZE DEPENDENT MARKER CODES - A security marker material comprising emissive particles selected from at least two groups with different size distributions and the size distributions satisfy the formula: | 06-07-2012 |
20120153229 | Fluorescent Dye-Siloxane Hybrid Resin - The present invention provides a fluorescent dye-silane hybrid resin manufactured by polycondensing an alkoxysilane bonded with a fluorescent dye with an organo-silane. More particularly, the present invention provides a fluorescent dye-siloxane hybrid resin that is manufactured by reacting a fluorescent dye having one or more functional groups with an alkoxysilane having an organic functional group to form an alkoxysilane bonded with the fluorescent dye and then polycondensing the alkoxysilane bonded with a fluorescent dye with an organo-silanediol and an organo-alkoxysilane having a thermocurable or ultraviolet-curable functional group without water. The fluorescent dye-silane hybrid resin has excellent thermostability, photostability, fluorescence characteristics, and processibility. | 06-21-2012 |
20140001405 | Highly Luminescent Nanostructures and Methods of Producing Same | 01-02-2014 |
20140124704 | BRIGHTNESS OF Y2O3:EU AT REDUCED EU WEIGHT PERCENTAGE - A yttrium europium oxide phosphor material having reduced Eu content is disclosed, together with methods for preparing and using the same. | 05-08-2014 |
20150108406 | LIGHT EMITTING MATERIAL AND METHOD FOR PRODUCTION THEREOF - A method of synthesizing a hybrid nanomaterial substrate for use in a light emitting structure is provided comprising the steps of: (a) defining one or more light emission characteristics for the light emitting structure; (b) selecting a nanocrystal and a compatible light emitting molecule; and (c) based on the light emission characteristics synthesizing a hybrid nanomaterial substrate by selectively varying the size of the nanocrystals in the substrate, and selectively bonding the light emitting molecules to surfaces of the nanocrystals, thereby synthesizing a nanomaterial structure that is operable to define a single illuminating entity operable upon application of a single excitation energy value to generate light emissions consistent with the light emission characteristics. A novel hybrid nanomaterial is also provided consisting of a nanocrystal-luminescent molecule structure defining a single illuminating entity with light emission affecting structural characteristics that vary across surfaces defined by the nanocrystals based on (a) selective variability of the size of the nanocrystals; and (b) selective variability across the substrate of the concentration of the luminescent molecule bonded to surfaces of the nanocrystals. Upon application to for example a diode comprising the hybrid nanomaterial of a single excitation energy value, the hybrid nanomaterial substrate converts the energy value into light emissions that across the variable substrate generates light emissions in white light range. The hybrid nanomaterial is tunable to achieve desired light emitting characteristics of the light emitting structure. | 04-23-2015 |
20150315460 | LUMINESCENT QUANTUM DOT - The present invention relates to a light-emitting quantum dot, and more particularly, to a light-emitting quantum dot of which ligand for capping the quantum dot contains a light-emitting material and which has excellent dispersibility and stability in an aqueous solution and has high color purity and light-emitting properties when applied to a light-emitting device, and a method for the preparation of the same. | 11-05-2015 |
20150329774 | COMPOSITE FILM AND FABRICATION METHOD THEREOF, PHOTOELECTRIC ELEMENT AND PHOTOELECTRIC APPARATUS - Embodiments of the invention relate to a composite film and a fabrication method thereof, a photoelectric element and a photoelectric apparatus. The fabrication method of the composite film includes: preparing a polyfluorene-based compound solution, wherein the polyfluorene-based compound solution includes polyfluorene or polyfluorene derivatives; preparing a quantum dot solution; mixing the polyfluorene-based compound solution and the quantum dot solution together to prepare a mixed solution; removing a solvent in the mixed solution to prepare the composite film. | 11-19-2015 |
20160075943 | QUANTUM ROD COMPOUND INCLUDING ELECTRON ACCEPTOR AND QUANTUM ROD LUMINESCENT DISPLAY DEVICE INCLUDING THE SAME - A quantum rod luminescent display device includes a first substrate having a plurality of pixel regions; a plurality of first electrodes alternately arranged with a plurality of second electrodes in each of the plurality of pixel regions; a plurality of quantum rod compound layers over the first electrodes and the second electrodes, respectively in each of the plurality of pixel regions, each of the quantum rod compound layers including a quantum rod having a core, a shell surrounding the core, and an electron acceptor; a second substrate facing the first substrate; and a backlight unit at an outer surface of the first substrate. The electron acceptor is attached to or adjacent to the quantum rod. | 03-17-2016 |
20160096992 | Highly Luminescent Nanostructures and Methods of Producing Same - Highly luminescent nanostructures, particularly highly luminescent quantum dots, are provided. The nanostructures have high photoluminescence quantum yields and in certain embodiments emit light at particular wavelengths and have a narrow size distribution. The nanostructures can comprise ligands, including C5-C8 carboxylic acid ligands employed during shell formation and/or dicarboxylic or polycarboxylic acid ligands provided after synthesis. Processes for producing such highly luminescent nanostructures are also provided, including methods for enriching nanostructure cores with indium and techniques for shell synthesis. | 04-07-2016 |
20160115383 | SEMICONDUCTOR PHOSPHOR NANOPARTICLE AND LIGHT-EMITTING ELEMENT INCLUDING SEMICONDUCTOR PHOSPHOR NANOPARTICLE - A semiconductor phosphor nanoparticle includes a semiconductor nanoparticle core containing a compound semiconductor, a shell layer coating the semiconductor nanoparticle core, and a modifying organic compound bonded to the shell layer through siloxane bonding. The modifying organic compound has an alkyl chain. | 04-28-2016 |