Abstract: In one aspect, light emitting devices are described herein. In some embodiments, a light emitting device described herein comprises an inorganic semiconductor substrate and a layer of quantum dots (QDs) covalently bonded to the inorganic semiconductor substrate. Such a device may further comprise an electrode and an overlayer positioned between the electrode and the layer of QDs. Moreover, the overlayer can be immediately adjacent to and in contact with the layer of QDs. Further, in some cases, the layer of QDs is a close-packed layer of QDs. Additionally, the light emitting device can be a green-emitting light emitting diode (LED) or an amber-emitting LED.

Abstract: In one aspect, light emitting devices are described herein. In some embodiments, a light emitting device described herein comprises an inorganic semiconductor substrate and a layer of quantum dots (QDs) covalently bonded to the inorganic semiconductor substrate. Such a device may further comprise an electrode and an overlayer positioned between the electrode and the layer of QDs. Moreover, the overlayer can be immediately adjacent to and in contact with the layer of QDs. Further, in some cases, the layer of QDs is a close-packed layer of QDs. Additionally, the light emitting device can be a green-emitting light emitting diode (LED) or an amber-emitting LED.

Abstract: A multi-gas sensor device for the detection of dissolved hydrocarbon gases in oil-filled electrical equipment. The device comprising a semiconductor substrate, one or more catalytic metal gate-electrodes deposited on the surface of the semiconductor substrate operable for sensing various gases, and an ohmic contact deposited on the surface of the semiconductor substrate. The semiconductor substrate comprises one of GaN, SiC, AlN, InN, AlGaN, InGaN and AlInGaN. A method for sensing gas in an oil-filled reservoir of electrical equipment, comprising providing a sensor device, immersing the sensor device in the oil-filled reservoir, allowing the gases emitted from the oil to interact with the one or more catalytic metal gate-electrodes, altering the gas as it contacts the catalytic metal gate-electrodes and altering the sensitivity of the sensor.

Abstract: A liquid containment system for an ocean-going vessel. The liquid containment system includes a tank having converging upper walls. The converging upper walls of the tank contain a substantial portion of the liquid therebetween and reduce the free surface area associated with the liquid. The upper converging walls of the tank extend above the horizontal deck of the vessel, but still allow sufficient deck space for supporting various required equipment. In one embodiment, the liquid containment system is a prismatic membrane tank designed to receive and hold liquefied natural gas (LNG).

Abstract: Apparatus for stripping ceramic coatings from the surfaces of articles. The apparatus includes a dedicated pressure vessel, such as an autoclave, which is maintained at an elevated temperature. Caustic solution is preheated to a first elevated temperature before injecting it into the autoclave, and the caustic solution is filtered and cooled after use in the autoclave. The articles are stripped of coating by maintaining the articles at an elevated temperature and pressure for a predetermined time. Various options include the use of analytical equipment to maintain the chemistry of the caustic solution and use of a volatile organic solution to prepressurize the autoclave and shorten cycle time. The autoclave is maintained in a nitrogen chamber to minimize the risks associated with volatile components.

Abstract: A liquid containment system for an ocean-going vessel. The liquid containment system includes a tank having converging upper walls. The converging upper walls of the tank contain a substantial portion of the liquid therebetween and reduce the free surface area associated with the liquid. The upper converging walls of the tank extend above the horizontal deck of the vessel, but still allow sufficient deck space for supporting various required equipment. In one embodiment, the liquid containment system is a prismatic membrane tank designed to receive and hold liquefied natural gas (LNG).

Abstract: A light emitting device comprised of a light emitting diode on a mounting surface, the light emitting diode includes a substrate layer and at least one active region. A resilient substantially transparent and substantially phosphor free polymer layer extends from the mounting surface to above at least one quarter of a height of the substrate layer but below a top surface of the light emitting diode. A second phosphor containing layer extends from the phosphor free polymer layer to above the top surface of the light emitting diode.

Abstract: A method for increasing carrier concentration in a semiconductor includes providing a group III nitride semiconductor device, determining a wavelength that increases carrier concentration in the semiconductor device, and directing at least one infrared light source, at the determined wavelength, into a semiconductor device excitation band.

Abstract: A flip chip light emitting diode die (10, 10?, 10?) includes a light-transmissive substrate (12, 12?, 12?) and semiconductor layers (14, 14?, 14?) that are selectively patterned to define a device mesa (30, 30?, 30?). A reflective electrode (34, 34?, 34?) is disposed on the device mesa (30, 30?, 30?). The reflective electrode (34, 34?, 34?) includes a light-transmissive insulating grid (42, 42?, 60, 80) disposed over the device mesa (30, 30?, 30?), an ohmic material (44, 44?, 44?, 62) disposed at openings of the insulating grid (42, 42?, 60, 80) and making ohmic contact with the device mesa (30, 30?, 30?), and an electrically conductive reflective film (46, 46?, 46?) disposed over the insulating grid (42, 42?, 60, 80) and the ohmic material (44, 44?, 44?, 62). The electrically conductive reflective film (46, 46?, 46?) electrically communicates with the ohmic material (44, 44?, 44?, 62).

Abstract: Optoelectronic devices are provided that incorporate quantum dots as the electroluminescent layer in an inorganic wide-bandgap heterostructure. The quantum dots serve as the optically active component of the device and, in multilayer quantum dot embodiments, facilitate nanoscale epitaxial lateral overgrowth (NELOG) in heterostructures having non-lattice matched substrates. The quantum dots in such devices will be electrically pumped and exhibit electroluminescence, as opposed to being optically pumped and exhibiting photoluminescence. There is no inherent “Stokes loss” in electroluminescence thus the devices of the present invention have potentially higher efficiency than optically pumped quantum dot devices. Devices resulting from the present invention are capable of providing deep green visible light, as well as, any other color in the visible spectrum, including white light by blending different sizes and compositions of the dots and controlling manufacturing processes.

Abstract: A light emitting device comprised of a light emitting diode on a mounting surface, the light emitting diode includes a substrate layer and at least one active region. A resilient substantially transparent and substantially phosphor free polymer layer extends from the mounting surface to above at least one quarter of a height of the substrate layer but below a top surface of the light emitting diode. A second phosphor containing layer extends from the phosphor free polymer layer to above the top surface of the light emitting diode.

Abstract: The illuminator includes a housing having thereon a transparent work supporting stage overlying an opening formed in the top of the housing. A plurality of light sources in the housing emit an array of spaced, parallel light beams through a like plurality of collimating lenses which collimate each of the beams emitted by the sources. The collimated light beams pass through a light transmissive diffuser which is interposed in the housing between its opening and the collimating lenses, which homogenizes the collimated light beams produced by said lenses. The homogenized light then passes through the housing opening, either directly or via one or more reflective surfaces, onto a workpiece located on the stage. In certain embodiments the collimated light beams pass through a beamsplitter before passage through the diffuser.

Abstract: An enhanced performance dual port I/O bus bridge to connect a first I/O bus of bandwidth B and a second like-type I/O bus of bandwidth B with a simultaneously bi-directional data path operating at a bandwidth of at least B and typically at a bandwidth of from 2B to 4B. The enhanced dual port I/O bus bridge includes a first bridge interface and a second bridge interface to a first I/O bus and a second I/O bus respectively. The bridge also includes a first data access path buffering data and having a bandwidth of at least B between the first bridge interface and a data cache, and a second data access path buffering data and having a bandwidth of at least B between the second bridge interface and the same data cache. The data cache can be a RAID type cache. The enhanced I/O bus bridge is operated asynchronously by a means for controlling simultaneous bi-directional data flow between the first bridge interface and the second bridge interface by way of concurrent dual port access to the shared data cache.

Abstract: A fluorescent lamp having multiple discrete zones with different levels of radiation intensity along its length has a tube with a fluorescent coating on the interior of the tube adapted to produce ultraviolet radiation of substantially uniform intensity. A reflective coating is provided along a finite length of the tube adjacent one end thereof and about only a portion of the circumference thereof to provide an increased intensity of radiation emanating from the uncoated portion of the periphery of the lamp in the finite portion due to reflection of radiation from the reflective coating. This lamp is especially useful in an array for a tanning chamber to provide a higher intensity of ultraviolet radiation in the facial area.