Semprius, Inc. Patent applications |
Patent application number | Title | Published |
20140373898 | OPTICAL SYSTEMS FABRICATED BY PRINTING-BASED ASSEMBLY - Provided are optical devices and systems fabricated, at least in part, via printing-based assembly and integration of device components. In specific embodiments the present invention provides light emitting systems, light collecting systems, light sensing systems and photovoltaic systems comprising printable semiconductor elements, including large area, high performance macroelectronic devices. Optical systems of the present invention comprise semiconductor elements assembled, organized and/or integrated with other device components via printing techniques that exhibit performance characteristics and functionality comparable to single crystalline semiconductor based devices fabricated using conventional high temperature processing methods. Optical systems of the present invention have device geometries and configurations, such as form factors, component densities, and component positions, accessed by printing that provide a range of useful device functionalities. Optical systems of the present invention include devices and device arrays exhibiting a range of useful physical and mechanical properties including flexibility, shapeability, conformability and stretchablity. | 12-25-2014 |
20140264763 | ENGINEERED SUBSTRATES FOR SEMICONDUCTOR EPITAXY AND METHODS OF FABRICATING THE SAME - In a method for fabricating an engineered substrate for semiconductor epitaxy, an array of seed structures is assembled on a surface of the substrate. The seed structures in the array have substantially similar directional orientations of their crystal lattices, and are spatially separated from each other. Semiconductor materials are selectively epitaxially grown on the seed structures, such that a rate of growth of the semiconductor materials on the seed structures is substantially higher than a rate of growth of the semiconductor materials on regions of the surface. The semiconductor materials assume a lattice constant and directional orientation of crystal lattice that are substantially similar or identical to those of the seed structures. Related devices and methods are also discussed. | 09-18-2014 |
20140261628 | HIGH EFFICIENCY SOLAR RECEIVERS INCLUDING STACKED SOLAR CELLS FOR CONCENTRATOR PHOTOVOLTAICS - A solar receiver includes at least two electrically independent photovoltaic cells which are stacked. An inter-cell interface between the photovoltaic cells includes a multi-layer dielectric stack. The multi-layer dielectric stack includes at least two dielectric layers having different refractive indices. Related devices and fabrication methods are also discussed. | 09-18-2014 |
20140261627 | POWER AUGMENTATION IN CONCENTRATOR PHOTOVOLTAIC MODULES BY COLLECTION OF DIFFUSE LIGHT - A concentrator-type photovoltaic module includes a backplane substrate, a plurality of concentrator photovoltaic (CPV) receivers on a surface of the backplane substrate, and concentrating optics positioned over the surface of the backplane substrate and configured to focus on-axis incident light onto the CPV receivers. A plurality of non-concentrator photovoltaic (PV) cells are provided on the surface of the backplane substrate. The PV cells are positioned to receive light that passes off-axis through the concentrating optics. Related devices and methods are also discussed. | 09-18-2014 |
20140048128 | SURFACE MOUNTABLE SOLAR RECEIVER WITH INTEGRATED THROUGH SUBSTRATE INTERCONNECT AND OPTICAL ELEMENT CRADLE - A concentrator-type photovoltaic (CPV) device includes a solar cell comprising a substrate including a light receiving surface and a mounting surface opposite the light receiving surface. A conductive through-substrate interconnect having insulated sidewalls extends through the substrate from the mounting surface to the light receiving surface to provide an electrical connection to a conductive terminal on the light receiving surface. A lens support structure is formed on the light receiving surface, and a lens element is provided on the support structure opposite the light receiving surface. The support structure supports and aligns the lens element with the light receiving surface to concentrate incident light thereon. Related fabrication processes are also discussed. | 02-20-2014 |
20140034127 | SURFACE-MOUNTABLE LENS CRADLES AND INTERCONNECTION STRUCTURES FOR CONCENTRATOR-TYPE PHOTOVOLTAIC DEVICES - A concentrator-type photovoltaic (CPV) receiver includes a solar cell on a substrate. The solar cell includes a light receiving surface having a conductive terminal thereon. A conductive lens support frame is mounted on the substrate and includes an opening therein that exposes the light receiving surface of the solar cell. A lens element is provided on the support frame opposite the light receiving surface of the solar cell. The support frame is electrically connected to the conductive terminal on the light receiving surface and an electrical node on the substrate. The support frame also supports and self-aligns the lens element with the light receiving surface to concentrate incident light thereon. Related fabrication processes are also discussed. | 02-06-2014 |
20130273695 | SELECTIVE TRANSFER OF ACTIVE COMPONENTS - A method for selectively transferring active components ( | 10-17-2013 |
20130215929 | INDIRECT TEMPERATURE MEASUREMENTS OF DIRECT BANDGAP (MULTIJUNCTION) SOLAR CELLS USING WAVELENGTH SHIFTS OF SUB-JUNCTION LUMINESCENCE EMISSION PEAKS - Methods and structures may be used to measure operating temperatures of isolated cells and/or fully interconnected cells inside a Concentrator Photovoltaic (CPV) module. The method may use spectrometers to measure wavelength shifts of a sub-cell electro-luminescence and/or photo-luminescence emission spectrum. A sub-cells' intrinsic bandgap temperature-dependence relations may be used to indirectly compute the operating temperature of each subcell. A sub-cells' intrinsic bandgap temperature-dependence coefficients can be measured by performing quantum efficiency measurements and/or by recording the electro-luminescence and/or photo-luminescence emission profile of a solar cell at multiple temperatures. | 08-22-2013 |
20130036909 | BREATHING AND DESICCANT REGENERATING CYCLE FOR REDUCING CONDENSATION IN CONCENTRATOR PHOTOVOLTAIC MODULES - A concentrator photovoltaic apparatus for controlling internal condensation includes a light receiving module including one or more photovoltaic cells in a waterproof enclosure, at least one primary lens sealed to the waterproof enclosure for concentrating sunlight, a waterproof breather membrane regulating the pressure of the air located inside the enclosure, and a regenerative desiccant in a thermally decoupled dryer tube or thermally coupled to an internal surface of the enclosure. Smaller breather membrane vents and/or positive time delays between the temperature of the desiccant and the temperature of the enclosure may prolong an adsorption phase of the desiccant, which may substantially contribute to efficiency, reliability, and autonomous control of condensation. | 02-14-2013 |
20120314388 | SUBSTRATES WITH TRANSFERABLE CHIPLETS - A method for fabricating a substrate having transferable chiplets includes forming a photo-sensitive adhesive layer on a process side of a source substrate including active components or on a patterned side of a transparent intermediate substrate. The intermediate substrate is brought into contact with the source substrate to adhere the active components on the process side to the patterned side of the intermediate substrate via the photo-sensitive adhesive layer therebetween. Portions of the source substrate opposite the process side thereof are removed to singulate the active components. Portions of the photo-sensitive adhesive layer are selectively exposed to electromagnetic radiation through the intermediate substrate to alter an adhesive strength thereof. Portions of the photo-sensitive adhesive layer having a weaker adhesive strength are selectively removed to define breakable tethers comprising portions of the adhesive layer having a stronger adhesive strength. The breakable tethers physically secure the active components to the intermediate substrate. | 12-13-2012 |
20120313241 | METHODS FOR SURFACE ATTACHMENT OF FLIPPED ACTIVE COMPONENTS - A method for selectively transferring active components from a source substrate to a destination substrate includes pressing a first stamp having first pillars protruding therefrom against active components on the source substrate to adhere respective primary surfaces of the active components including electrical connections thereon to respective transfer surfaces of the first pillars. A second stamp having second pillars protruding therefrom is pressed against the active components on the first stamp to adhere respective secondary surfaces of the active components to respective transfer surfaces of the second pillars. The transfer surfaces of the second pillars have greater adhesive strength than the first pillars. The second stamp is pressed against a destination substrate to adhere the respective primary surfaces of the active components including the electrical connections thereon to a receiving surface of the destination substrate. | 12-13-2012 |