Abstract:
A method for etching Carbon Nanotube (CNT) sheet material for electrical circuit and thin film thermal structures. The method includes: forming an mask on a sheet of electrically conductive CNT material; and electrochemically removing unmasked portions of the CNT material.
Abstract:
In certain embodiments, a first semiconductor material is vaporized to generate a vapor phase condensate. The vapor phase condensate is allowed to form nanoparticles. The nanoparticles are annealed to yield nanoparticles or cores. The cores are overcoated by introducing a solution containing second semiconductor material precursors in a coordinating solvent into a suspension of cores at a desired elevated temperature and mixing for a period of time sufficient to cause diffusion of the shell into the core. The diffusion of the shell into the core causes the quantum dots to exhibit a broadened optical emission. The produced quantum dots may be incorporated into a quantum dot based radiation source.
Abstract:
A hyperspectral calibrator includes a composite light source disposed within a housing and including an ultraviolet light emitting diode (UV LED) and a phosphor arranged such that a first beam generated by the UV LED is transmitted through the phosphor to produce and emit a calibration beam that is spectrally continuous over a wavelength range extending from 0.4 μm to 0.7 μm, the housing having an output opening, and the housing and the composite light source being configured to direct the calibration beam emitted from the composite light source to the output opening to produce the calibration beam at the output opening.
Abstract:
An apparatus, method and thin-film structure for producing a blackbody spectrum is disclosed. A first layer (302) of the apparatus is configured to generate heat in response to an applied voltage. A second layer (306) is configured to emit the blackbody radiation spectrum in response to the heat from the first layer. A thermal spreading layer (304) is disposed between the first layer and the second layer. The thermal spreading layer includes a graphene sheet for reducing a spatial variation of the heat in a plane of the thermal spreading layer. The first layer may be a carbon nanotube layer.
Abstract:
A structure having a carbon nanotube material having a plurality of carbon nanotubes and an electrically or thermally conductive material disposed on at least a portion of the carbon nanotubes, such electrically or thermally conductive material being chemically bonded to such portion of the carbon nanotubes.