摘要:
A method for creating a nanostructure according to one embodiment includes depositing material in a template for forming an array of nanocables; removing only a portion of the template such that the template forms an insulating layer between the nanocables; and forming at least one layer over the nanocables. A nanostructure according to one embodiment includes a nanocable having a roughened outer surface and a solid core. A nanostructure according to one embodiment includes an array of nanocables each having a roughened outer surface and a solid core, the roughened outer surface including reflective cavities; and at least one layer formed over the roughened outer surfaces of the nanocables, the at least one layer creating a photovoltaically active p-n junction. Additional systems and methods are also presented.
摘要:
A photovoltaic nanostructure according to one embodiment of the present invention includes an electrically conductive nanocable coupled to a first electrode, a second electrode extending along at least two sides of the nanocable, and a photovoltaically active p-n junction formed between the nanocable and the second electrode. A photovoltaic array according to one embodiment includes a plurality of photovoltaic nanostructures as recited above. Methods for forming nanostructures are also presented.
摘要:
Irradiation devices and methods of amplification and irradiation are disclosed for displaying pixels and Surface Enhanced Raman Spectroscopy (SERS) analysis. The devices include an optical modulator, which may be configured for operation in a variably transmissive state. An active region may be formed in an optical waveguide with the optical modulator configured substantially adjacent at least one surface of the active region.
摘要:
Different types of cooling devices using nanowires are described. For example, a cooling device may include a plurality of diamond nanowires coupled to a surface. The diamond nanowires conduct heat energy from the surface and dissipate the heat energy into a neighboring fluid.
摘要:
A nano-colonnade VCSEL device and a method of fabrication utilize a nanowire column grown nearly vertically from a (111) horizontal surface of a first layer to another horizontal surface of a second layer to connect the layers. The VCSEL device includes a first layer having the (111) horizontal surface; a second layer; and an insulator support between the first layer and the second layer that separates the first layer from the second layer. A portion of the second layer overhangs the insulator support, such that a horizontal surface of the overhanging portion is spaced from and faces the (111) horizontal surface of the first layer. The VCSEL device further includes a nanowire column extending nearly vertically from the (111) horizontal surface to the facing horizontal surface, and distributed Bragg mirrors adjacent to opposite end of the nanowire column.
摘要:
Devices, systems, and methods for enhancing Raman spectroscopy and hyper-Raman are disclosed. A molecular analysis device for performing Raman spectroscopy comprises a substrate and a laser source disposed on the substrate. The laser source may be configured for emanating a laser radiation, which may irradiate an analyte disposed on a Raman enhancement structure. The Raman enhancement structure may be disposed in a waveguide. The molecular analysis device also includes a wavelength demultiplexer and radiation sensors disposed on the substrate and configured for receiving a Raman scattered radiation, which may be generated by the irradiation of the analyte and Raman enhancement structure.
摘要:
One embodiment in accordance with the invention is an apparatus that can include a light emitting diode that is for of outputting light in the blue wavelength. Furthermore, the apparatus can also include a nanowire or nanoparticle coupled to a surface of the light emitting diode. Additionally, the apparatus can include an electrode coupled to the light emitting diode, wherein the nanowire or nanoparticle is for receiving and converting the light into red and green light that is output from the nanowire or nanoparticle.
摘要:
Nanowire-based opto-electronic devices including nanowire lasers, photodetectors and semiconductor optical amplifiers are disclosed. The devices include nanowires grown from single crystal and/or non-single surfaces. The semiconductor optical amplifiers include nanowire arrays that act as ballast lasers to amplify a signal carried by a signal waveguide. Embodiments of the nanowire lasers and photodetectors include horizontal and vertical nanowires that can provide different polarizations.
摘要:
A patterned array of metallic nanostructures and fabrication thereof is described. A device comprises a patterned array of metallic columns vertically extending from a substrate. Each metallic column is formed by metallically coating one of an array of non-metallic nanowires catalytically grown from the substrate upon a predetermined lateral pattern of seed points placed thereon according to a nanoimprinting process. An apparatus for fabricating a patterned array of metallic nanostructures is also described.
摘要:
A method for forming a nanostructure according to one embodiment includes creating a hole in an insulating layer positioned over an electrically conductive layer; and forming a nanocable in the hole such that the nanocable extends through the hole in the insulating layer and protrudes therefrom, the nanocable being in communication with the electrically conductive layer. Additional systems and methods are also presented.