Abstract:
An electronic or opto-electronic device or a chemical sensor comprising: an interpenetrating network of a nanostructured high surface area to volume ratio film material and an organic/inorganic material forming a nanocomposite. The high surface area to volume film material is obtained onto an electrode substrate first, such that the nano-scale basic elements comprising this film material are embedded in a void matrix while having electrical connectivity with the electrode substrate. For example, the film material may comprise an array of nano-protrusions electrically connected to the electrode substrate and separated by a void matrix. The interpenetrating network is formed by introducing an appropriate organic/inorganic material into the void volume of the high surface area to volume film material. Further electrode(s) are defined onto the film or intra-void material to achieve a certain device. Charge separation, charge injection, charge storage, field effect devices, ohmic contacts, and chemical sensors are possible.
Abstract:
A non-vacuum-based, non-collodial chemistry-based method of synthesizing metal nanoparticles and nanoparticle-nanostructured material composites obtained by that method. An embodiment of the method of this invention for fabricating a nanoparticle-nanostructured material composite and synthesizing nanoparticles includes preparing a nanostructured/nanotextured material, and, contacting the nanostructured/nanotextured material with a solution. Nanoparticles are synthesized on the nanostructured/nanotextured material as a result of the contact. The method of the present invention can be utilized to fabricate SPR and SERS substrates for sensing and detection. Additional systems based on this approach (e.g., surface plasmon resonance absorption and alloying sensors and nanocatalysts) are described.
Abstract:
This invention presents a novel method to form uniform or heterogeneous, straight or curved and size-controllable nanostructures, nanowires, and nanotapes, including SiNW, in a nanochannel template. In the case of semiconductor nanowires, doping can be included during growth. Electrode contacts are present as needed and built in to the template structure. Thus completed devices such as diodes, transistors, solar cells, sensors, and transducers are fabricated, contacted, and arrayed as nanowire or nanotape fabrication is completed. Optionally, the template is not removed may become part of the structure. Nanostructures such as nanotweezers, nanocantiliver, and nanobridges are formed utilizing the processes of the invention.
Abstract:
The invention relates to a method of forming at least one nano-structure with a reusable template structure having a channel. The method includes introducing at least one reagent into the channel, and reacting the at least one reagent to form a nano-structure within the channel. The nano-structure forming channel may be positioned in alignment with one or more electrode structures, which may be positioned within or upon the substrate, may be embedded in the reusable template structure, and/or may be external electrode structures positioned outside of the reusable template structure and independent of the substrate. In addition, the electrode structures may be a source material for the formation of the nano-structure in the channel.
Abstract:
This invention presents a novel method to form uniform or heterogeneous, straight or curved and size-controllable nanostructures including, for example, nanotubes, nanowires, nanoribbons, and nanotapes, including SiNW, using a nanochannel template. In the case of semiconductor nanowires, doping can be included during growth. Electrode contacts are present as needed and may be built in to the template structure. Thus completed devices such as diodes, transistors, solar cells, sensors, and transducers are fabricated, contacted, and arrayed as nanowire or nanotape fabrication is completed. Optionally, the template is not removed and may become part of the structure. Nanodevices such as nanotweezers, nanocantilevers, and nanobridges are formed utilizing the processes of the invention.