摘要:
An emitter includes an electron supply layer, a dielectric layer on the electron supply layer defining an emission area, and a filled zeolite emission layer within the defined emission area and in contact with the electron supply layer. The filled zeolite emission layer holds a semiconductor material within the cage of the zeolite.
摘要:
An emitter includes an electron supply layer, a dielectric layer on the electron supply layer defining an emission area, and a filled zeolite emission layer within the defined emission area and in contact with the electron supply layer. The filled zeolite emission layer holds a semiconductor material within the cage of the zeolite.
摘要:
A re-recordable data storage medium is disclosed. One embodiment of the medium includes a dielectric material and a filler material. The dielectric material is organized in columnar channels over which memory cells are logically distributed. The filler material is within the columnar channels to realize the memory cells. The filler material of each memory cell has at least a first configuration and a second configuration. The first configuration corresponds to a first storable logical value, and the second configuration corresponds to a second storable logical value.
摘要:
A photovoltaic device has nanoparticles sandwiched between a conductive substrate and a charge selective transport layer. Each of the nanoparticles has a ligand shell attached to the nanoparticle core. A first type of ligand is electron rich and attached to one hemisphere of the nanoparticle core, while a second type of ligand is electron poor and attached to an opposite hemisphere of the core. Consequently, the ligand shell induces an electric field within the nanoparticle, enhancing the photovoltaic effect. The arrangement of ligands types on different sides of the nanoparticle is obtained by a process involving ligand substitution after adhering the nanoparticles to the conductive substrate.
摘要:
An optical upconverting nanomaterial includes a nanocrystal, a ligand layer directly bonded to the nanocrystal, and an optical antenna directly or indirectly bonded to the nanocrystal. The nanocrystal includes a transition metal-doped material exhibiting upconversion to optical wavelengths. The transition metal-doped material includes energy transfer facilitating transition metal dopants and (not necessarily distinct) emitter transition metal dopants, where an absorption spectrum of the energy transfer facilitating transition metal dopants overlaps with an emission spectrum of the optical antenna. The optical upconverting nanomaterial has at least one linear dimension (e.g., width or thickness) that is less than 150 nm in extent.
摘要:
This invention provides, in one aspect, a procedure to use optically transparent nanocrystalline quantum dots to absorb UV light. This absorption process leads to an energy transfer to a chemically bound and chelated lanthanide ion that may emit light in either the visible spectrum (400-700 nm) or in the near infrared (700-1600 nm). This invention also provides methods for the use of these taggant materials in inks and aerosols used to disperse the taggant.
摘要:
A method of processing a type III–VI semiconductor material on a silicon substrate to improve minority carrier diffusion length and EBIC response is provided. The semiconductor material is heated to a temperature in the range of 300° C.–600° C. for a period in the range of 20 seconds to 60 minutes in an atmosphere having a composition of 0–10% of hydrogen in nitrogen.
摘要:
A method of improving ink stability. A block co-polymer is added to either an under-/overprinting vehicle or an ink vehicle. The polymer increases chemical interactions between the ink the print media. The under-/overprinting vehicle and the ink vehicle interact through electrostatic interactions while the polymer increases smearfastness by interacting with the print media through non-covalent interactions.
摘要:
A photonic-crystal filament is formed by mixing a slurry comprising particles of substantially uniform size and a precursor material for a desired metal, urging the slurry through an orifice to force the particles and precursor material into a combination having a desired crystallographic configuration, drying the combination emerging from the orifice, and sintering the precursor material.
摘要:
A photovoltaic device has nanoparticles sandwiched between a conductive substrate and a charge selective transport layer. Each of the nanoparticles has a ligand shell attached to the nanoparticle core. A first type of ligand is electron rich and attached to one hemisphere of the nanoparticle core, while a second type of ligand is electron poor and attached to an opposite hemisphere of the core. Consequently, the ligand shell induces an electric field within the nanoparticle, enhancing the photovoltaic effect. The arrangement of ligands types on different sides of the nanoparticle is obtained by a process involving ligand substitution after adhering the nanoparticles to the conductive substrate.