Patent application number | Description | Published |
20090050207 | Photovoltaic Cell - A photovoltaic cell has two electrodes and a hole injection layer. A liquid crystal material and a plurality of particles can be disposed between the electrodes. | 02-26-2009 |
20100032018 | Novel Photoactive Polymers - Novel photoactive polymers, as well as related components, articles, systems, and methods are disclosed. | 02-11-2010 |
20100180944 | Polymers with low band gaps and high charge mobility - Polymers with low band gaps and high charge mobility, as well as related systems, methods and components are disclosed. | 07-22-2010 |
20100307594 | Conjugated Polymers and Their Use in Optoelectronic Devices - Disclosed are certain polymeric compounds and their use as organic semiconductors in organic and hybrid optical, optoelectronic, and/or electronic devices such as photovoltaic cells, light emitting diodes, light emitting transistors, and field effect transistors. The disclosed compounds can provide improved device performance, for example, as measured by power conversion efficiency, fill factor, open circuit voltage, field-effect mobility, on/off current ratios, and/or air stability when used in photovoltaic cells or transistors. The disclosed compounds can have good solubility in common solvents enabling device fabrication via solution processes. | 12-09-2010 |
20100310424 | ORGANIC MATERIALS ABLE TO DETECT ANALYTES - The present invention generally relates to polymers with lasing characteristics that allow the polymers to be useful in detecting analytes. In one aspect, the polymer, upon an interaction with an analyte, may exhibit a change in a lasing characteristic that can be determined in some fashion. For example, interaction of an analyte with the polymer may affect the ability of the polymer to reach an excited state that allows stimulated emission of photons to occur, which may be determined, thereby determining the analyte. In another aspect, the polymer, upon interaction with an analyte, may exhibit a change in stimulated emission that is at least 10 times greater with respect to a change in the spontaneous emission of the polymer upon interaction with the analyte. The polymer may be a conjugated polymer in some cases. In one set of embodiments, the polymer includes one or more hydrocarbon side chains, which may be parallel to the polymer backbone in some instances. In another set of embodiments, the polymer may include one or more pendant aromatic rings. In yet another set of embodiments, the polymer may be substantially encapsulated in a hydrocarbon. In still another set of embodiments, the polymer may be substantially resistant to photobleaching. In certain aspects, the polymer may be useful in the detection of explosive agents, such as 2,4,6-trinitrotoluene (TNT) and 2,4-dinitrotoluene (DNT). | 12-09-2010 |
20110284080 | Photovoltaic Cell With Silole-Containing Polymer - Photovoltaic cells with silole-containing polymers, as well as related systems, methods and components are disclosed. | 11-24-2011 |
20110290324 | Photovoltaic Cell With Thiazole-Containing Polymer - Photovoltaic cells with thiazole-containing polymers, as well as related components, systems, and methods, are disclosed. | 12-01-2011 |
20120186652 | Conjugated Polymers and Their Use in Optoelectronic Devices - Disclosed are certain polymeric compounds and their use as organic semiconductors in organic and hybrid optical, optoelectronic, and/or electronic devices such as photovoltaic cells, light emitting diodes, light emitting transistors, field effect transistors, and photodetectors. The disclosed compounds can provide improved device performance, for example, as measured by power conversion efficiency, fill factor, open circuit voltage, field-effect mobility, on/off current ratios, and/or air stability when used in photovoltaic cells or transistors. The disclosed compounds can have good solubility in common solvents enabling device fabrication via solution processes. | 07-26-2012 |
20120187385 | Conjugated Polymers and Their Use in Optoelectronic Devices - Disclosed are certain oligomeric and polymeric compounds and their use as organic semiconductors in organic and hybrid optical, optoelectronic, and/or electronic devices such as photovoltaic cells, light emitting diodes, light emitting transistors, and field effect transistors. The disclosed compounds can provide high power conversion efficiency, fill factor, open circuit voltage, field-effect mobility, on/off current ratios, and/or air stability when used in photovoltaic cells or transistors. The disclosed compounds can have good solubility in common solvents enabling device fabrication via solution processes. | 07-26-2012 |
20130069018 | SEMICONDUCTOR NANOCRYSTALS AND METHODS OF PREPARATION - A method for preparing semiconductor nanocrystals comprises reacting cation precursors and anion precursors in a reaction mixture including one or more acids, one or more phenol compounds, and a solvent to produce semiconductor nanocrystals having a predetermined composition. A method for forming a coating on at least a portion of a population of semiconductor nanocrystals is also disclosed. The method comprises forming a first mixture including a population of semiconductor nanocrystals, one or more amine compounds, and a first solvent; adding cation precursors and anion precursors to the first mixture at a temperature sufficient for growing a semiconductor material on at least a portion of an outer surface of at least a portion of the population of semiconductor nanocrystals; and initiating addition of one or more acids to the first mixture after addition of the cation and anion precursors is initiated. Semiconductor nanocrystals and populations thereof are also disclosed. | 03-21-2013 |
20130098448 | Conjugated Polymers and Their Use in Optoelectronic Devices - Disclosed are certain polymeric compounds and their use as organic semiconductors in organic and hybrid optical, optoelectronic, and/or electronic devices such as photovoltaic cells, light emitting diodes, light emitting transistors, and field effect transistors. The disclosed compounds can provide improved device performance, for example, as measured by power conversion efficiency, fill factor, open circuit voltage, field-effect mobility, on/off current ratios, and/or air stability when used in photovoltaic cells or transistors. The disclosed compounds can have good solubility in common solvents enabling device fabrication via solution processes. | 04-25-2013 |
20130200354 | Conjugated Polymers and Their Use in Optoelectronic Devices - Disclosed are certain polymeric compounds and their use as organic semiconductors in organic and hybrid optical, optoelectronic, and/or electronic devices such as photovoltaic cells, light emitting diodes, light emitting transistors, and field effect transistors. The disclosed compounds can provide improved device performance, for example, as measured by power conversion efficiency, fill factor, open circuit voltage, field-effect mobility, on/off current ratios, and/or air stability when used in photovoltaic cells or transistors. The disclosed compounds can have good solubility in common solvents enabling device fabrication via solution processes. | 08-08-2013 |
20130200355 | Conjugated Polymers and Their Use in Optoelectronic Devices - Disclosed are certain polymeric compounds and their use as organic semiconductors in organic and hybrid optical, optoelectronic, and/or electronic devices such as photovoltaic cells, light emitting diodes, light emitting transistors, and field effect transistors. The disclosed compounds can provide improved device performance, for example, as measured by power conversion efficiency, fill factor, open circuit voltage, field-effect mobility, on/off current ratios, and/or air stability when used in photovoltaic cells or transistors. The disclosed compounds can have good solubility in common solvents enabling device fabrication via solution processes. | 08-08-2013 |
20130271090 | DEVICES AND METHODS INCLUDING POLYACETYLENES - Embodiments described herein relate to compositions, devices, and methods for storage of energy (e.g., electrical energy). In some cases, devices including polyacetylene-containing polymers are provided. | 10-17-2013 |
20130273247 | SEMICONDUCTOR NANOCRYSTALS AND METHODS OF PREPARATION - A method for preparing semiconductor nanocrystals is disclosed. The method comprises adding a precursor mixture comprising one or more cation precursors, one or more anion precursors, and one or more amines to a ligand mixture including one or more acids, one or more phenol compounds, and a solvent to form a reaction mixture, wherein the molar ratio of (the one or more phenol compounds plus the one or more acids plus the one or more amine compounds) to the one or more cations initially included in the reaction mixture is greater than or equal to about 6, and heating the reaction mixture at a temperature and for a period of time sufficient to produce semiconductor nanocrystals having a predetermined composition. Methods for forming a buffer layer and/or an overcoating layer thereover are also disclosed. Semiconductor nanocrystals and compositions including semiconductor nanocrystals of the invention are also disclosed. In certain embodiments, a semiconductor nanocrystal includes one or more Group IIIA and one or more Group VA elements. | 10-17-2013 |
20140034129 | Photovoltaic Cell With Thiazole-Containing Polymer - Photovoltaic cells with thiazole-containing polymers, as well as related components, systems, and methods, are disclosed. | 02-06-2014 |