Abstract: The disclosed technology includes an infrared-emitting quantum dot comprising a core comprising a first semiconductor material, a shell comprising a second semiconductor material, and a gradient interface between the core and the shell. The disclosed technology also includes methods of manufacturing the same.

Abstract: A container is disclosed with two lids, the first or outer lid can be torn off and discarded after a product is received by a recipient, such as a customer. Alternatively, the outer lid may be left in place with the container then being used as a return shipper with the outer lid remaining as part of the returned container.

Abstract: A gas sensor utilizing carbon nanotubes (CNTs) is disclosed. The sensor can include a patch antenna, a feed line, and a stub line. The stub line can include a carbon nanotube (CNT) thin-film layer for gas detection. The CNTs can be functionalized to detect one or more analytes with specificity designed to detect, for example, environmental air contaminants, hazardous gases, or explosives. The sensor can provide extremely sensitive gas detection by monitoring the shift in resonant frequency of the sensor circuit resulting from the adsorption of the analyte by the CNT thin-film layer. The sensor can be manufactured using inkjet printing technologies to reduce costs. The integration of an efficient antenna on the same substrate as the sensor enables wireless applications of the sensor without additional components, for wireless standoff chemical sensing applications including, for example, defense, industrial monitoring, environmental sensing, automobile exhaust analysis, and healthcare applications.

Abstract: Various embodiments of the present invention provide a method of detecting inaccessible radiation sources by measuring corresponding ions and excited molecules created by radiation, using LIDAR technology. The LIDAR system of the present invention employs a pulsed laser transmitter, a telescope receiver, and associated control and acquisition systems. Light propagates out from the laser transmitted and is directed into the volume surrounding the radioactive source, or the “ion cloud.” The ion cloud absorbs the transmitted light, which induces the non-fluorescing ions to fluoresce. Light from the ion cloud is then backscattered and the telescope receiver subsequently collects the photons from the backscattered light. The intensity of the fluorescence (determined by the photon count) is measured, which provides an indication of the number density of the ionized atoms. Algorithms can then be used to relate the measured ionization rates to the source activity.

Abstract: A gas sensor utilizing carbon nanotubes (CNTs) is disclosed. The sensor can include a patch antenna, a feed line, and a stub line. The stub line can include a carbon nanotube (CNT) thin-film layer for gas detection. The CNTs can be functionalized to detect one or more analytes with specificity designed to detect, for example, environmental air contaminants, hazardous gases, or explosives. The sensor can provide extremely sensitive gas detection by monitoring the shift in resonant frequency of the sensor circuit resulting from the adsorption of the analyte by the CNT thin-film layer. The sensor can be manufactured using inkjet printing technologies to reduce costs. The integration of an efficient antenna on the same substrate as the sensor enables wireless applications of the sensor without additional components, for wireless standoff chemical sensing applications including, for example, defense, industrial monitoring, environmental sensing, automobile exhaust analysis, and healthcare applications.

Abstract: Various embodiments of the present invention provide a method of detecting inaccessible radiation sources by measuring corresponding ions and excited molecules created by radiation, using LIDAR technology. The LIDAR system of the present invention employs a pulsed laser transmitter, a telescope receiver, and associated control and acquisition systems. Light propagates out from the laser transmitted and is directed into the volume surrounding the radioactive source, or the “ion cloud.” The ion cloud absorbs the transmitted light, which induces the non-fluorescing ions to fluoresce. Light from the ion cloud is then backscattered and the telescope receiver subsequently collects the photons from the backscattered light. The intensity of the fluorescence (determined by the photon count) is measured, which provides an indication of the number density of the ionized atoms. Algorithms can then be used to relate the measured ionization rates to the source activity.

Abstract: Methods of forming thin film layers and structures including the thin film layer are disclosed herein.

Abstract: The invention provides compositions, which are mixtures of phosphors. The compositions comprise a first component described by the formula: M1SxSey:B1 and a second component that comprises a material described by the formula M2Am(SpSeq)n:B2, in which: M1 and M2 may be any metal species and B1 and B2 may be any activator, typically a metal species, with the remaining variables representing effective numerical values necessary for conferring electrical neutrality to the compositions. A phosphor mixture according to the invention is produced by first preparing individual components, and then physically mixing the components, as in a mortar or ball mill.

Abstract: A device and method for emitting output light utilizes orange/red light emitting ZnSe0.5S0.5:Cu,Cl phosphor material and green light emitting BaSrGa4S7:Eu phosphor material to convert some of the original light emitted from a light source of the device to a longer wavelength light to change the optical spectrum of the output light. The device and method can be used to produce white color light using the light source, which may be a blue light emitting diode (LED) die. The orange/red light emitting ZnSe0.5S0.5:Cu,Cl phosphor material and green light emitting BaSrGa4S7:Eu phosphor material are included in a wavelength-shifting region optically coupled to the light source.

Abstract: Provided herein are novel phosphors useful in the manufacture of white light emitting diodes. The phosphors provided by the invention are described by the formulae: MA2(SxSey)4:B and/or M2A4(SxSey)7:B in which x, and y are each independently any value between 0 and 1, including 0 and 1 subject to the proviso that the sum of x and y is equal to any number in the range of between about 0.75 and about 1.25; M is at least one of Be, Mg, Ca, Sr, Ba, Zn; A is at least one of Al, Ga, In, Y, La, and Gd; and wherein the activator(s), B, comprises one or more element selected from the group consisting of: Eu, Ce, Cu, Ag, Al, Tb, Cl, Br, F, I, Mg, Pr, K, Na, and Mn, including mixtures comprising any two, any three, any four, any five, any six, any seven, or more of these elements in any proportion, and wherein the elements in these mixtures may each independently be present in any amount between 0.0001% and about 10% in mole percent based on the total molar weight of said composition.

Abstract: Provided herein are novel phosphors useful in the manufacture of white light emitting diodes. The phosphors provided by the invention are described by the formulae: MSxSey: B in which x, and y are each independently any value between about 0 and about 1, subject to the proviso that the sum of x and y is equal to any number in the range of between about 0.75 and about 1.25; M is at least one of Be, Mg, Ca, Sr, Ba, Zn, excepting Zn alone; and wherein the activator(s) B comprises one or more elements selected from the group consisting of: Eu, Ce, Cu, Ag, Al, Tb, Sb, Bi, K, Na, Cl, F, Br, I, Mg, Pr, and Mn, including mixtures comprising any two, any three, any four, any five, any six, any seven, or more of these elements in any proportion, and wherein the elements in these mixtures may each independently be present in any amount between 0.0001% and about 10% in mole percent based on the total molar weight of said composition.

Abstract: An awning drive assembly with a motor internal to an awning roll-up tube and/or the awning using the awning drive assembly. A transmission linkage is attached to a motor assembly which is at least partially inserted into the roll-up tube of the awning. The transmission linkage is a disk connected to a motor shaft and the disk has notches which engage corresponding projections within the roll-up tube, allowing the motor to deploy and retract the awning. The awning drive assembly also has a mechanism for releasably connecting the motor assembly to a support arm mounting assembly. When the means for releasably connecting is released, a spring retracts the awning, even when the motor is not operable.

Abstract: An awning drive assembly with a motor internal to an awning roll-up tube and/or the awning using the awning drive assembly. A transmission linkage is attached to a motor assembly which is at least partially inserted into the roll-up tube of the awning. The transmission linkage is a disk connected to a motor shaft and the disk has notched which engage corresponding projections within the roll-up tube, allowing the motor to deploy and retract the awning. The awning drive assembly also has a means for reassembly connecting the motor assembly to a support arm mounting assembly. When the means for releasably connecting is released, a spring retracts the awning,even when the motor in not operable.