Abstract: Improved ultraviolet field-emission lamps can be safely deployed close to people because they eliminate the use of toxic materials, mitigate heating issues, and emit light in a wavelength range that is safe for human exposure.

Abstract: An ink composition including a nanomaterial and a liquid vehicle, wherein the liquid vehicle includes a composition including one or more functional groups that are capable of being cross-linked is disclosed. An ink composition including a nanomaterial, a liquid vehicle, and scatterers is also disclosed. An ink composition including a nanomaterial and a liquid vehicle, wherein the liquid vehicle includes a perfluorocompound is further disclosed. A method for inkjet printing an ink including nanomaterial and a liquid vehicle with a surface tension that is not greater than about 25 dyne/cm is disclosed. In certain preferred embodiments, the nanomaterial includes semiconductor nanocrystals. Devices prepared from inks and methods of the invention are also described.

Abstract: To produce hexagonal boron nitride (h-BN), boron and nitrogen are added to a metallic solvent in a crucible in a reaction chamber and heat-treated. In an absorption step, a first soak is performed at a first temperature that is high enough to cause absorption of the nitrogen and boron into the metallic solvent. In a nucleation step after the absorption step, the first temperature is rapidly reduced to a second temperature, and h-BN nuclei are formed in the metallic solvent. In a growth step after the nucleation step, a second soak is performed at the second temperature to grow the h-BN nuclei. After the growth step, the h-BN nuclei are separated from the metallic solvent.

Abstract: Improved ultraviolet field-emission lamps can be safely deployed close to people because they eliminate the use of toxic materials, mitigate heating issues, and emit light in a wavelength range that is safe for human exposure.

Abstract: Nanowire light emitting diodes (LEDs) are operable for spontaneous emission of light at significantly reduced current densities and with very narrow linewidths relative to conventional LEDs.

Abstract: An ink composition including a nanomaterial and a liquid vehicle, wherein the liquid vehicle includes a composition including one or more functional groups that are capable of being cross-linked is disclosed. An ink composition including a nanomaterial, a liquid vehicle, and scatterers is also disclosed. An ink composition including a nanomaterial and a liquid vehicle, wherein the liquid vehicle includes a perfluorocompound is further disclosed. A method for inkjet printing an ink including nanomaterial and a liquid vehicle with a surface tension that is not greater than about 25 dyne/cm is disclosed. In certain preferred embodiments, the nanomaterial includes semiconductor nanocrystals. Devices prepared from inks and methods of the invention are also described.

Abstract: Improved ultraviolet field-emission lamps can be safely deployed close to people because they eliminate the use of toxic materials, mitigate heating issues, and emit light in a wavelength range that is safe for human exposure.

Abstract: Improved ultraviolet field-emission lamps can be safely deployed close to people because they eliminate the use of toxic materials, mitigate heating issues, and emit light in a wavelength range that is safe for human exposure.

Abstract: An ink composition comprising a nanomaterial and a liquid vehicle, wherein the liquid vehicle comprises a composition including one or more functional groups that are capable of being cross-linked is disclosed. An ink composition comprising a nanomaterial, a liquid vehicle, and scatterers is also disclosed. An ink composition comprising a nanomaterial and a liquid. vehicle, wherein the liquid vehicle comprises a perfluorocompound is further disclosed. A method for inkjet printing an ink including nanomaterial and a liquid vehicle with a surface tension that is not greater than about 25 dyne/cm is disclosed. In certain preferred embodiments, the nanomaterial comprises semiconductor nanoerystals. Devices prepared from inks and methods of the invention are also described.

Abstract: Processes for synthesizing the hexagonal polymorph of boron nitride (h-BN) produce h-BN of a grade that is highly suitable for ultraviolet (UV) field-emission lights and other UV applications.

Abstract: Improved ultraviolet field-emission lamps can be safely deployed close to people because they eliminate the use of toxic materials, mitigate heating issues, and emit light in a wavelength range that is safe for human exposure.

Abstract: An ink composition including a nanomaterial and a liquid vehicle, wherein the liquid vehicle includes a composition including one or more functional groups that are capable of being cross-linked is disclosed. An ink composition including a nanomaterial, a liquid vehicle, and scatterers is also disclosed. An ink composition including a nanomaterial and a liquid vehicle, wherein the liquid vehicle includes a perfluorocompound is further disclosed. A method for inkjet printing an ink including nanomaterial and a liquid vehicle with a surface tension that is not greater than about 25 dyne/cm is disclosed. In certain preferred embodiments, the nanomaterial includes semiconductor nanocrystals. Devices prepared from inks and methods of the invention are also described.

Abstract: Improved ultraviolet field-emission lamps can be safely deployed close to people because they eliminate the use of toxic materials, mitigate heating issues, and emit light in a wavelength range that is safe for human exposure.

Abstract: Light-emitting devices and displays with improved performance are disclosed. A light-emitting device includes a first electrode including an anode opposite a second electrode including a cathode, a hole injection layer adjacent the first electrode, a hole transporting layer disposed on the hole injection layer, and an emissive layer of inorganic semiconductor nanocrystals disposed between the hole transporting layer and the second electrode. The inorganic semiconductor nanocrystals comprising a plurality of semiconductor nanocrystals capable of emitting light upon excitation.

Abstract: This application discloses an in-line system and method for measuring the optical performance of an HOE in motion during a roll-to-roll fabrication process.

Abstract: This application discloses a system and method for measuring the optical performance of an HOE or a population of HOEs in a single or mass production environment using light.

Abstract: This application discloses an automated system for measuring the quality of an HOE using incoherent light and a camera or image screen.

Abstract: The present inventions relate to optical components which include quantum confined semiconductor nanoparticles, wherein at least a portion of the nanoparticles include a ligand attached to a surface thereof, the ligand being represented by the formula: X-Sp-Z, wherein: X represents a primary amine group, a secondary amine group, a urea, a thiourea, an imidizole group, an amide group, an other nitrogen containing group, a carboxylic acid group, a phosphonic or arsonic acid group, a phosphinic or arsinic acid group, a phosphate or arsenate group, a phosphine or arsine oxide group; Sp represents a spacer group, such as a group capable of allowing a transfer of charge or an insulating group; and Z represents: (i) a reactive group capable of communicating specific chemical properties to the nanocrystal as well as provide specific chemical reactivity to the surface of the nanocrystal, and/or (ii) a group that is cyclic, halogenated, or polar a-protic.

Abstract: A lighting system is disclosed. The lighting system comprises at least one light source comprising a light emitting diode (LED) and one or more phosphors optically coupled to the LED to convert at least a portion of original light emitted by the LED to provide a modified LED light having a first predetermined spectral output, and an optical material that is optically coupled to at least a portion of a surface of a light guide plate and optically coupled to receive at least a portion of the modified LED light and to convert at least a portion of the modified LED light to at least one predetermined wavelength to provide modified light having a second predetermined spectral output, wherein the optical material comprises one or more types of quantum confined semiconductor nanoparticle. A device including a lighting system is also disclosed.

Abstract: The present disclosure provides an anticounterfeiting system based on optical technology that verify the authenticity of protected cinema screens. The optical technology includes taggants embedded or attached to the screen and an optical readout system that can interrogate the taggant layer and receive the taggant output. The taggants are capable of reflecting a pattern that unambiguously demonstrates that the screen contains the taggant. The taggants are covert because they are not visible under normal lighting conditions or during cinema operation, but are detected when interrogated by the optical readout system.