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: 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: An apparatus, for example, the imager of a printer is disclosed. The apparatus comprises an elongate member including an optical element. At least one bearing supports the member to allow rotation about a lengthwise axis of the member. An actuator comprises a plurality of load sharing motors to apply torque to the member at a plurality of locations, the locations being spaced apart along the length of the member.

Abstract: In an example, a method comprises: directing a sensing beam towards a reflective component of a print apparatus in a direction; detecting a reflected portion of the sensing beam at a detector comprising a two-dimensional sensing region; obtaining an indication of a location of the reflected portion of the sensing beam incident on the two-dimensional sensing region; and determining an orientation of the reflective component based on a correspondence between the location of the portion of the sensing beam on the two-dimensional sensing region and the direction of the sensing beam reflected by the component according to its orientation.

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: 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: In an example, a method includes determining an indication of pixel separation for an image region to be printed to a substrate. A power level of a laser light source to address a pixel on a region of a photoconductive surface corresponding to the image region may be adjusted based on the indication of pixel separation to compensate for print spot size variation associated with pixel separation.

Abstract: In an example, a method includes determining an indication of pixel separation for an image region to be printed to a substrate. A power level of a laser light source to address a pixel on a region of a photoconductive surface corresponding to the image region may be adjusted based on the indication of pixel separation to compensate for print spot size variation associated with pixel separation.

Abstract: One embodiment is a urinary catheter system comprising an optical flow tube for connecting a catheter tube to a collection tube; and a disinfection and detection device configured to enclose the optical flow tube for detecting and destroying bacteria within the optical flow tube.

Abstract: Certain examples described herein relate to an optical controller (140) for an exposure unit (115, 215) of a printer. In certain examples, memory (150) stores a plurality of data structures each comprising adjustment factors useable to adjust a plurality of optical elements (216) of the exposure unit. Different data structures correspond to different gray coverages in an image generated by the printer. In certain examples, a processor (160) determines gray levels for different image regions in input image data. In certain cases, the processor links the determined gray levels to corresponding data structures within the plurality of data structures to obtain adjustment factors for the different image regions. In certain cases, the processor adjusts the optical elements for each image region using the corresponding obtained adjustment factors to enable the generation of an exposed image using the exposure unit based on the input image data.

Abstract: A coated quantum dot is provided wherein the quantum dot is characterized by having a solid state photoluminescence external quantum efficiency at a temperature of 90° C. or above that is at least 95% of the solid state photoluminescence external quantum efficiency of the semiconductor nanocrystal at 25° C. Products including quantum dots described herein are also disclosed.

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: Certain examples described herein relate to an optical controller (140) for an exposure unit (115, 215) of a printer. In certain examples, memory (150) stores a plurality of data structures each comprising adjustment factors useable to adjust a plurality of optical elements (216) of the exposure unit. Different data structures correspond to different gray coverages in an image generated by the printer. In certain examples, a processor (160) determines gray levels for different image regions in input image data. In certain cases, the processor links the determined gray levels to corresponding data structures within the plurality of data structures to obtain adjustment factors for the different image regions. In certain cases, the processor adjusts the optical elements for each image region using the corresponding obtained adjustment factors to enable the generation of an exposed image using the exposure unit based on the input image data.

Abstract: A semiconductor nanocrystal characterized by having a solid state photoluminescence external quantum efficiency at a temperature of 90° C. or above that is at least 95% of the solid state photoluminescence external quantum efficiency of the semiconductor nanocrystal at 25° C. is disclosed. A semiconductor nanocrystal having a multiple LO phonon assisted charge thermal escape activation energy of at least 0.5 eV is also disclosed. A semiconductor nanocrystal capable of emitting light with a maximum peak emission at a wavelength in a range from 590 nm to 650 nm characterized by an absorption spectrum, wherein the absorption ratio of OD at 325 nm to OD at 450 nm is greater than 5.5. A semiconductor nanocrystal capable of emitting light with a maximum peak emission at a wavelength in a range from 545 nm to 590 nm characterized by an absorption spectrum, wherein the absorption ratio of OD at 325 nm to OD at 450 nm is greater than 7.

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 nanocrystals. Devices prepared from inks and methods of the invention are also described.

Abstract: A composition useful for altering the wavelength of visible or invisible light is disclosed. The composition comprising a solid host material and quantum confined semiconductor nanoparticles, wherein the nanoparticles are included in the composition in amount in the range from about 0.001 to about 15 weight percent based on the weight of the host material. The composition can further include scatterers. An optical component including a waveguide component and quantum confined semiconductor nanoparticles is also disclosed. A device including an optical component is disclosed. A system including an optical component including a waveguide component and quantum confined semiconductor nanoparticles and a light source optically coupled to the waveguide component is also disclosed. A decal, kit, ink composition, and method are also disclosed. A TFEL including quantum confined semiconductor nanoparticles on a surface thereof is also disclosed.

Abstract: A semiconductor nanocrystal characterized by having a solid state photoluminescence external quantum efficiency at a temperature of 90° C. or above that is at least 95% of the solid state photoluminescence external quantum efficiency of the semiconductor nanocrystal at 25° C. is disclosed. A semiconductor nanocrystal having a multiple LO phonon assisted charge thermal escape activation energy of at least 0.5 eV is also disclosed. A semiconductor nanocrystal capable of emitting light with a maximum peak emission at a wavelength in a range from 590 nm to 650 nm characterized by an absorption spectrum, wherein the absorption ratio of OD at 325 nm to OD at 450 nm is greater than 5.5. A semiconductor nanocrystal capable of emitting light with a maximum peak emission at a wavelength in a range from 545 nm to 590 nm characterized by an absorption spectrum, wherein the absorption ratio of OD at 325 nm to OD at 450 nm is greater than 7.

Abstract: A semiconductor nanocrystal characterized by having a solid state photoluminescence external quantum efficiency at a temperature of 90° C. or above that is at least 95% of the solid state photoluminescence external quantum efficiency of the semiconductor nanocrystal at 25° C. is disclosed. A semiconductor nanocrystal having a multiple LO phonon assisted charge thermal escape activation energy of at least 0.5 eV is also disclosed. A semiconductor nanocrystal capable of emitting light with a maximum peak emission at a wavelength in a range from 590 nm to 650 nm characterized by an absorption spectrum, wherein the absorption ratio of OD at 325 nm to OD at 450 nm is greater than 5.5. A semiconductor nanocrystal capable of emitting light with a maximum peak emission at a wavelength in a range from 545 nm to 590 nm characterized by an absorption spectrum, wherein the absorption ratio of OD at 325 nm to OD at 450 nm is greater than 7.

Abstract: A coated quantum dot is provided wherein the quantum dot is characterized by having a solid state photoluminescence external quantum efficiency at a temperature of 90° C. or above that is at least 95% of the solid state photoluminescence external quantum efficiency of the semiconductor nanocrystal at 25° C. Products including quantum dots described herein are also disclosed.

Abstract: An anamorphic optical element and an adjustment mechanism for selectively rotating the optical element either around an axis substantially in a vertical direction, an axis substantially in an optical axis direction, an axis substantially in a plane formed by the vertical direction and the optical axis direction, or combination of axes thereof is used to vary a vertical separation between two or more spots.