Lassiter
Brian Lassiter, San Francisco, CA US
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20150207088 | MULTIJUNCTION ORGANIC PHOTOVOLTAICS INCORPORATING SOLUTION AND VACUUM DEPOSITED ACTIVE LAYERS - There is disclosed an organic photovoltaic device comprising at least one first subcell comprising at least one first small molecular weight material deposited by solution processing, and at least one second subcell comprising a weight at least one second small molecular material deposited by vacuum evaporation. Also disclosed herein is a method for preparing an organic photovoltaic device comprising at least one first subcell comprising at least one first small molecular weight material and at least one second subcell comprising at least one second small molecular weight material, the method comprising depositing at least one first small weight material by solution processing; and depositing at least one second small weight material by vacuum evaporation. | 07-23-2015 |
20150207090 | ORGANIC OPTOELECTRONICS WITH ELECTRODE BUFFER LAYERS - There is disclosed an organic optoelectronic device comprising two electrodes in superposed relation comprising an anode and a cathode, at least one donor material and at least one acceptor material located between the two electrodes forming a donor-acceptor heterojunction, an anode buffer layer adjacent to the anode and a cathode buffer layer adjacent to the cathode, and an intermediate layer adjacent to at least one of the anode and cathode buffer layers, wherein when the intermediate layer is adjacent to the anode buffer layer, the intermediate layer is chosen to facilitate the transport of holes to the anode buffer layer, and when the intermediate layer is adjacent to the cathode buffer layer, the intermediate layer is chosen to facilitate the transport of electrons to the cathode buffer layer. Also disclosed are methods of making the same. | 07-23-2015 |
Brian E. Lassiter, Ypsilanti, MI US
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20100084011 | ORGANIC TANDEM SOLAR CELLS - There is disclosed an organic photovoltaic device comprising two or more organic photoactive regions located between a first electrode and a second electrode, wherein each of the organic photoactive regions comprise a donor, and an acceptor, and wherein the organic photovoltaic device comprises at least one exciton blocking layer, and at least one charge recombination layer, or charge transfer layer between the two or more photoactive regions. It has been discovered that a high open circuit voltage can been obtained for organic tandem solar cells according to this disclosure. Methods of making and methods of using are also disclosed. | 04-08-2010 |
20120090685 | MATERIALS FOR CONTROLLING THE EPITAXIAL GROWTH OF PHOTOACTIVE LAYERS IN PHOTOVOLTAIC DEVICES - There is disclosed ultrathin film material templating layers that force the morphology of subsequently grown electrically active thin films have been found to increase the performance of small molecule organic photovoltaic (OPV) cells. There is disclosed electron-transporting material, such as hexaazatriphenylene-hexacarbonitrile (HAT-CN) can be used as a templating material that forces donor materials, such as copper phthalocyanine (CuPc) to assume a vertical-standing morphology when deposited onto its surface on an electrode, such as an indium tin oxide (ITO) electrode. It has been shown that for a device with HAT-CN as the templating buffer layer, the fill factor and short circuit current of CuPc:C60 OPVs were both improved compared with cells lacking the HAT-CN template. This is explained by the reduction of the series resistance due to the improved crystallinity of CuPc grown onto the ITO surface. | 04-19-2012 |
20120235125 | ORGANIC PHOTOVOLTAIC CELL INCORPORATING ELECTRON CONDUCTING EXCITON BLOCKING LAYERS - The present disclosure relates to photosensitive optoelectronic devices comprising a compound blocking layer located between an acceptor material and a cathode, the compound blocking layer comprising: at least one electron conducting material, and at least one wide-gap electron conducting exciton blocking layer. For example, 3,4,9,10 perylenetetracarboxylic bisbenzimidazole (PTCBI) and 1,4,5,8-napthalene-tetracarboxylic-dianhydride (NTCDA) function as electron conducting and exciton blocking layers when interposed between the acceptor layer and cathode. Both materials serve as efficient electron conductors, leading to a fill factor as high as 0.70. By using an NTCDA/PTCBI compound blocking layer structure increased power conversion efficiency is achieved, compared to an analogous device using a conventional blocking layers shown to conduct electrons via damage-induced midgap states. | 09-20-2012 |
20130240840 | METAL OXIDE CHARGE TRANSPORT MATERIAL DOPED WITH ORGANIC MOLECULES - Doping metal oxide charge transport material with an organic molecule lowers electrical resistance while maintaining transparency and thus is optimal for use as charge transport materials in various organic optoelectronic devices such as organic photovoltaic devices and organic light emitting devices. | 09-19-2013 |
20150064837 | ORGANIC ELECTRONIC DEVICES WITH MULTIPLE SOLUTION-PROCESSED LAYERS - A method of fabricating a tandem organic photosensitive device involves depositing a first layer of an organic electron donor type material film by solution-processing of the organic electron donor type material dissolved in a first solvent; depositing a first layer of an organic electron acceptor type material over the first layer of the organic electron donor type material film by a dry deposition process; depositing a conductive layer over the interim stack by a dry deposition process; depositing a second layer of the organic electron donor type material over the conductive layer by solution-processing of the organic electron donor type material dissolved in a second solvent, wherein the organic electron acceptor type material and the conductive layer are insoluble in the second solvent; depositing a second layer of an organic electron acceptor type material over the second layer of the organic electron donor type material film by a dry deposition process, resulting in a stack. | 03-05-2015 |
Brian E. Lassiter, San Francisco, CA US
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20150318505 | USE OF INVERSE QUASI-EPITAXY TO MODIFY ORDER DURING POST-DEPOSITION PROCESSING OR ORGANIC PHOTOVOLTAICS - Disclosed herein are methods for fabricating an organic photovoltaic device comprising depositing an amorphous organic layer and a crystalline organic layer over a first electrode, wherein the amorphous organic layer and the crystalline organic layer contact one another at an interface; annealing the amorphous organic layer and the crystalline organic layer for a time sufficient to induce at least partial crystallinity in the amorphous organic layer; and depositing a second electrode over the amorphous organic layer and the crystalline organic layer. In the methods and devices herein, the amorphous organic layer may comprise at least one material that undergoes inverse-quasi epitaxial (IQE) alignment to a material of the crystalline organic layer as a result of the annealing. | 11-05-2015 |
20150340634 | HYBRID PLANAR-GRADED HETEROJUNCTION FOR ORGANIC PHOTOVOLTAICS - Disclosed herein are organic photosensitive optoelectronic devices comprising at least one hybrid planar-graded heterojunction. In particular, organic photosensitive optoelectronic devices are disclosed having two electrodes ( | 11-26-2015 |
Brian Einstein Lassiter, Ypsilanti, MI US
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20120061658 | STRUCTURAL TEMPLATING FOR ORGANIC ELECTRONIC DEVICES HAVING AN ORGANIC FILM WITH LONG RANGE ORDER - An organic photosensitive device having an organic film with a desired crystalline order includes a first electrode layer and at least one structural templating layer disposed on the first electrode A photoactive region is disposed on the templating layer and includes a donor material and an acceptor material, wherein the donor or the acceptor is templated by the templating layer, and further wherein a majority of the molecules of the templated material are in a non-preferential orientation with respect to the first electrode An organic light emitting device incorporating such organic films includes a first electrode layer, a second electrode layer, at least one structural templating layer disposed between the first and second electrodes, and a functional layer disposed over the templating layer A majority of the molecules of the functional layer are in a non-preferential orientation with respect to the layer below the templating layer | 03-15-2012 |
Eric Reid Lassiter, Monroe, GA US
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20090080968 | BICYCLE SEAT TUBE CLAMP AND ASSOCIATED METHODS - A bicycle seat tube clamp may include a clamp body having an opening for a bicycle seat tube. The clamp body may have a separation defining first and second opposing clamp ends which may have respective first and second aligned fastener shaft-receiving passageways therein. The first clamp end may have a cylindrically shaped nut-receiving passageway intersecting the first fastener shaft-receiving passageway. The second clamp end may have an enlarged fastener head-receiving passageway aligned with the second fastener shaft-receiving passageway. The clamp may also include a fastener having an enlarged head with a convex lower surface. A cylindrically shaped nut may be positioned in the nut-receiving passageway and engage the fastener shaft. A shaped washer may surround the shaft and have a concave upper surface engaging the convex lower surface of the fastener head. Alternatively, the concave surface may be integrally formed in the enlarged fastener head-receiving passageway. | 03-26-2009 |
James Lassiter, Los Angeles, CA US
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20110010308 | MANAGING DEMOGRAPHIC-BASED CUSTOMER RATINGS - Embodiments are directed to implementing demographic-based user ratings and to aggregating and displaying anonymous user comments. A computer system receives user demographics from multiple different resource users. The computer system receives resource ratings from the resource users, where the resource ratings indicate a level of satisfaction with the resource. The computer system receives a request from a requesting user for a rating of the resource, where the request includes various demographics of the requesting user. The computer system also determines which of the resource users has demographics that optimally match the demographics of the requesting user and present the rating from the resource user determined to optimally match the demographics of the requesting user. | 01-13-2011 |
Matthew Lassiter, Knoxville, TN US
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20130206199 | Device and Method for Hybrid Solar-Thermal Energy Harvesting - A thermoelectric generator and methods of fabricating a thermoelectric generator are disclosed. An exemplary thermoelectric generator includes an upper electrode, a lower electrode, and a thermocouple disposed between the upper electrode and the lower electrode. The upper electrode, the lower electrode, and the thermocouple are configured to effect heat flux laterally through the thermocouple. In a further aspect, the thermoelectric generator is integrated with a solar cell to form a solar/thermal energy conversion device | 08-15-2013 |
Melissa W. Lassiter, Chamblee, GA US
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20150327379 | BED MOUNTED INTERACTIVE DISPLAY SYSTEM - An interactive product display system includes a display unit for displaying media regarding a product and a mounting structure for mounting the display unit to the product in a manner that allows a user to change an orientation of the display unit based on a position of the user. | 11-12-2015 |
Michael L. Lassiter, Holly Springs, NC US
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20140053500 | MONOPOLE TOWER REINFORCEMENT CONFIGURATION AND RELATED METHODS - Antenna tower reinforcement configurations use bolted gusset plate and splice plate configurations that allow for increased clearance access using short threaded bolts and threaded gusset plate apertures for increased clearance access and/or ease of installation. The gusset plates are welded to the reinforcement plates rather than bolted. Splice plates are bolted to the gusset plates using splice bolts. | 02-27-2014 |
20150368922 | MONOPOLE TOWER REINFORCEMENT CONFIGURATION AND RELATED METHODS - Antenna tower reinforcement configurations use bolted gusset plate and splice plate configurations that allow for increased clearance access using short threaded bolts and threaded gusset plate apertures for increased clearance access and/or ease of installation. The gusset plates are welded to the reinforcement plates rather than bolted. Splice plates are bolted to the gusset plates using splice bolts. | 12-24-2015 |
20150376910 | MONOPOLE TOWER REINFORCEMENT CONFIGURATION AND RELATED METHODS - Antenna tower reinforcement configurations use bolted gusset plate and splice plate configurations that allow for increased clearance access using short threaded bolts and threaded gusset plate apertures for increased clearance access and/or ease of installation. The gusset plates are welded to the reinforcement plates rather than bolted. Splice plates are bolted to the gusset plates using splice bolts. | 12-31-2015 |
Michael L. Lassiter, Apex, NC US
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20100026604 | METHODS OF MODIFYING ERECT CONCEALED ANTENNA TOWERS AND ASSOCIATED MODIFIED TOWERS AND DEVICES THEREFOR - The disclosure describes installing an antenna canister in a portion of a concealed antenna pole at a location that is below a top of the pole while the antenna pole is erect and associated components to facilitate the procedure, as well as multi-piece vertical rods, pole mounting bracket assemblies and retrofit kits. | 02-04-2010 |
20110156984 | METHODS OF MODIFYING ERECT CONCEALED ANTENNA TOWERS AND ASSOCIATED MODIFIED TOWERS AND DEVICES THEREFOR - The disclosure describes installing an antenna canister in a portion of a concealed antenna pole at a location that is below a top of the pole while the antenna pole is erect and associated components to facilitate the procedure, as well as multi-piece vertical rods, pole mounting bracket assemblies and retrofit kits. | 06-30-2011 |
20120256810 | METHODS OF MODIFYING ERECT CONCEALED ANTENNA TOWERS AND ASSOCIATED MODIFIED TOWERS AND DEVICES THEREFOR - The disclosure describes installing an antenna canister in a portion of a concealed antenna pole at a location that is below a top of the pole while the antenna pole is erect and associated components to facilitate the procedure, as well as multi-piece vertical rods, pole mounting bracket assemblies and retrofit kits, | 10-11-2012 |
20140240193 | METHODS OF MODIFYING ERECT CONCEALED ANTENNA TOWERS AND ASSOCIATED MODIFIED TOWERS AND DEVICES THEREFOR - The disclosure describes installing an antenna canister in a portion of a concealed antenna pole at a location that is below a top of the pole while the antenna pole is erect and associated components to facilitate the procedure, as well as multi-piece vertical rods, pole mounting bracket assemblies and retrofit kits. | 08-28-2014 |
Shelby J. Lassiter, Odessa, FL US
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20090048895 | QUALITY MODEL CERTIFICATION ASSESSMENT COST ESTIMATION AND OPTIMIZATION - A method includes determining a standard set of activities to perform an assessment and certification process, and identifying cost elements and cost drivers for each activity of the standard set of activities. Additionally, the method includes determining requirements for a particular assessment and certification project, and determining a cost estimation based upon at least one of the standard set of activities, the cost elements, the cost drivers, and the requirements. | 02-19-2009 |
Thomas W. Lassiter, Garland, TX US
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20150380363 | Methods and Apparatus to Reduce Semiconductor Wafer Warpage in the Presence of Deep Cavities - Methods and apparatus for forming structures to reduce wafer warpage. A method includes providing a semiconductor wafer having a plurality of integrated circuits; providing a photomask defining a plurality of cavities to be formed by an etch on a backside surface of the semiconductor wafer; defining structural support areas for the backside surface, the structural support areas being contiguous areas; providing areas on the photomask that correspond to the structural support areas, the structural support areas being areas that are not to be etched; using the photomask, performing an etch on the backside surface of the semiconductor wafer to form the cavities by removing semiconductor material from the backside surface of the semiconductor wafer; and the structural supports on the backside of the semiconductor wafer formed as areas that are not subjected to the etch. Additional methods and apparatus are also disclosed. | 12-31-2015 |
Thomas Warren Lassiter, Garland, TX US
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20150338604 | BOND-PAD INTEGRATION SCHEME FOR IMPROVED MOISTURE BARRIER AND ELECTRICAL CONTACT - An apparatus includes first and second electrodes separated by an insulative material (such as a piezoelectric material). The apparatus also includes a protective layer over the first and second electrodes. The protective layer has a first opening that exposes a portion of the first electrode and a second opening that exposes a portion of the second electrode. The apparatus further includes a first electrical contact at least partially within the first opening and electrically coupled to the first electrode. In addition, the apparatus includes a second electrical contact at least partially within the second opening and electrically coupled to the second electrode. Each of the first and second electrical contacts includes a stack of metal layers. The stack of metal layers includes a titanium nitride layer, a titanium layer over the titanium nitride layer, and an aluminum copper layer over the titanium nitride layer and the titanium layer. | 11-26-2015 |
20150340245 | HIGH-TEMPERATURE ISOTROPIC PLASMA ETCHING PROCESS TO PREVENT ELECTRICAL SHORTS - A method includes placing a device having a titanium nitride layer into a chamber. The device also has a mask that includes a photoresist material and an aluminum copper hardmask. The method also includes performing an ashing process on the mask using the chamber. The method further includes, after the ashing process, performing an etching process using the chamber to etch through portions of the titanium nitride layer. Performing the etching process includes flowing a gas mixture containing tetrafluoromethane (CF | 11-26-2015 |
20150380637 | PIEZOELETRIC WET ETCH PROCESS WITH REDUCED RESIST LIFTING AND CONTROLLED UNDERCUT - A microelectronic device containing a piezoelectric thin film element is formed by oxidizing a top surface of a piezoelectric layer with an oxygen plasma, and subsequently forming an etch mask containing photoresist on the oxidized top surface. The etch mask is conditioned with an oven bake followed by a UV bake. The piezoelectric layer is etched using a three step process: a first step includes a wet etch of an aqueous solution of about 5% NH | 12-31-2015 |