Patent application number | Description | Published |
20080242806 | Water-Soluble Fluorescent Particle Comprising Entangled Fluorescent Polymer and Amphiphilic Molecule - Water-soluble fluorescent particles are formed in a simple process. A mixture comprising a solvent, water, a fluorescent polymer dissolved in the solvent, and an amphiphilic molecule is provided. The fluorescent polymer comprises a hydrophobic segment. The amphiphilic molecule comprises hydrophilic and hydrophobic segments. The solvent is removed from the mixture to allow the fluorescent polymer and the amphiphilic molecule to entangle in the presence of water, thus forming the water-soluble fluorescent particles. In the formed particles, the hydrophilic segments of the amphiphilic molecule are entangled with one another, and the hydrophobic segments of the fluorescent polymer and amphiphilic molecule are entangled with one another. The amphiphilic molecule encapsulates the fluorescent polymer and at least some of the hydrophilic segments are exposed to render the particle soluble in water. | 10-02-2008 |
20080272691 | Poly(Arylenevinylene) and Poly(Heteroarylenevinylene) Light Emitting Polymers and Polymer Light-Emitting Devices - The invention provides novel luminescent poly(arylenevinylene) and poly(heteroarylenevinylene) polymers. The polymers of the invention may be prepared as films and such films may be used as an emissive layer in polymeric light emitting devices. In one embodiment, a bulky aryl group is attached at position (2) of at least one phenylene ring of a poly(phenylenevinylene) backbone. In another embodiment, the bulky aryl is attached at position 3 of at least one 5-membered heteroarylene ring of a poly(heteroarylenevinylene) backbone. | 11-06-2008 |
20090032106 | N-type conjugated materials based on 2-vinyl-4,5-dicyanoimidazoles and their use in organic photovoltaics - There is provided novel n-type conjugated compounds based on 2-vinyl-4,5-dicyanoimidazole moieties conjugated via the vinyl group to an aromatic moiety. Also provided are thin films and photovoltaics comprising the novel compounds, as well as methods of synthesizing the compounds. | 02-05-2009 |
20090123720 | SOLUTION PROCESSED ORGANOMETALLIC COMPLEXES AND THEIR USE IN ELECTROLUMINESCENT DEVICES - The invention provides phosphorescent organometallic complexes. The complexes of the invention may be prepared as films further comprising a charge carrying host material may be used at an emissive layer in organic light emitting devices. In one embodiment, the complex is a hyper-branched organoiridium complex comprising a 2-phenylpuridine ligand wherein the phenyl ring or the pyridine ring contains 4 non-hydrogen substituents. In another embodiment, the complex is an organoiridium complex comprising a substituted 2-phenyl pyridine ligand, wherein at least one substituent contains a spiro group. | 05-14-2009 |
20090267058 | SOLUTION-PROCESSED INORGANIC FILMS FOR ORGANIC THIN FILM TRANSISTORS - A method for fabricating a sol-gel film composition for use in a thin film transistor is disclosed. The method BB includes fabricating the sol-gel dielectric composition by solution processing at a temperature in the range 60° C. to 225° C. The sol-gel film made by the method, and an organic thin-film Si wafer Si wafer transistor incorporating the sol-gel film are also disclosed. | 10-29-2009 |
20100133519 | ARYLAMINE COMPOUNDS AND ELECTRONIC DEVICES - There is provided conductive organic arylamine compounds. The compounds may be prepared as films and such films may be used as a hole transporting layer, an emissive layer or an electron transporting layer in organic light emitting devices. | 06-03-2010 |
20100331550 | THIENOTHIOPHENE DERIVATIVES - An organic compound represented by the following general formula (I) and characterised by the conjugation of thieno[3,2-b]thiophene, thiophene and phenylene units in the conjugated compound. | 12-30-2010 |
20110303909 | PLANAR CONJUGATED COMPOUNDS AND THEIR APPLICATIONS FOR ORGANIC ELECTRONICS - The invention relates to organic semiconducting materials, methods for their preparation and organic electronic devices incorporating the said organic semiconducting materials. The organic semiconductors contain a compound of formula (I) | 12-15-2011 |
20120156829 | POLYMERIC SEMICONDUCTORS, DEVICES, AND RELATED METHODS - A polymer comprises a polymeric chain represented by formula (I) or (II). In formula (I), a, b, c, d, and n are integers, a from 0 to 3, b from 1 to 5, c from 1 to 3, d from 1 to 5, and n from 2 to 5000; R | 06-21-2012 |
20120161117 | P-TYPE MATERIALS AND ORGANIC ELECTRONIC DEVICES - There is presently provided compounds of formula (I), which are useful as p-type semiconductor materials and in devices comprising such p-type semiconductor materials. | 06-28-2012 |
20120266957 | ORGANIC PHOTOVOLTAIC CELL WITH POLYMERIC GRATING AND RELATED DEVICES AND METHODS - A photovoltaic cell comprises first and second electrode layers, an organic photoactive layer between the first and second electrode layers, and a polymeric grating structure in the first electrode layer. The first and second electrode layers are configured to collect electrical charges from the photoactive layer and to allow light to transmit through the first electrode layer to reach the photoactive layer. The grating structure is configured to provide a grating periodicity of about 100 nm to about 500 nm and grating amplitude of about 100 nm to about 500 nm. A device comprising the photovoltaic cell is disclosed. A photovoltaic cell may be formed by printing a polymer on a substrate to form a grating structure, forming a first electrode layer on the polymeric grating structure and the substrate, forming an organic photoactive layer above the first electrode layer, and forming a second electrode layer above the photoactive layer. | 10-25-2012 |
20120298976 | N-Type Materials And Organic Electronic Devices - There is presently provided organic compounds of formula I, n-type acceptor materials derived from such compounds and devices comprising such n-type acceptor materials. | 11-29-2012 |
20130163928 | Polymer Waveguide for Coupling with Light Transmissible Devices and Method of Fabricating the Same - A polymer waveguide for coupling with one or more light transmissible devices, a method of fabricating a polymer waveguide for coupling with one or more light transmissible devices, and a method of coupling a polymer waveguide with one or more light transmissible devices. The polymeric waveguide comprises a grating structure. | 06-27-2013 |
20140231784 | POLYMERIC SEMICONDUCTORS, DEVICES, AND RELATED METHODS - A polymer comprises a polymeric chain represented by formula (I) or (II). In formula (I) a, b, d, and n are integers, a from 0 to 3, b from 1 to 5, c from 1 to 3, d from 1 to 5, and n from 2 to 5000; R | 08-21-2014 |