Abstract:
A surface enhanced Raman spectroscopy (SERS) apparatus employs a nanorod in an indentation in a surface of a substrate. The SERS apparatus includes the nanorod having a tip at a free end opposite to an end of the nanorod that is supported by the substrate indentation. The indentation has a tapered profile and supports the nanorod at a bottom of the indentation. The free end of the nanorod extends away from the indentation bottom. The SERS apparatus further includes a Raman-active material at a surface of one or both of the nanorod and the indentation. The indentation and the nanorod facilitate one or both of production and detection of a Raman scattering signal emitted by an analyte in a vicinity of the nanorod and indentation.
Abstract:
A chemical-analysis device (801) integrated with a metallic-nanofinger device (101) for chemical sensing. The chemical-analysis device (801) includes a metallic-nanofinger device (101), and a platform (820). The metallic-nanofinger device (101) includes a substrate (110), and a plurality (120) of nanofingers coupled with the substrate (110). A nanofinger (120-1) of the plurality (120) includes a flexible column (120-1A), and a metallic cap (120-1B) coupled to an apex (120-1C) of the flexible column (120-1A). At least the nanofinger (120-1) and a second nanofinger (120-2) of the plurality (120) of nanofingers are to self-arrange into a close-packed configuration with at least one analyte molecule (220-1). A morphology of the metallic cap (120-1B) is to generate a shifted plasmonic-resonance peak (622) associated with amplified luminescence from the analyte molecule (220-1). A method for using, and a chemical-analysis apparatus (901) including the chemical-analysis device (801) are also provided.
Abstract:
An environment sensitive device (10, 10', 10'') is disclosed. The device (10, 10', 10'') includes a substrate, a three-dimensional structure (24, 24', 24'') established on the substrate, a first coating (28) established on a first portion (P 1 ) of the three-dimensional structure (24, 24', 24''), and a second coating (30) established on a second portion (P 2 ) of the three-dimensional structure (24, 24', 24''). The first and second coatings (28, 30) contain different materials that are configured to respond differently when exposed to a predetermined external stimulus.
Abstract:
Embodiments of the present invention provide a method of forming an electrical connection on a device. In one embodiment, the electrical connection is attached to the device via an adhesive having electrically conductive particles disposed therein. In one embodiment, the adhesive is cured while applying pressure such that the conductive particles align, have a reduced particle-to-particle spacing, or come into contact with each other to provide a more directly conductive (less resistive) path between the electrical connection and the device. In one embodiment of the present invention, a method for forming an electrical lead on a partially formed solar cell during formation of the solar cell device is provided. The method comprises placing a side-buss wire onto a pattern of electrically conductive adhesive disposed on a back contact layer of a solar cell device substrate, laminating the side-buss wire and electrically conductive adhesive between the solar cell device substrate and a back glass substrate to form a composite solar cell structure, and curing the electrically conductive adhesive while applying pressure and heat to the composite solar cell structure.
Abstract:
A memory device (100) includes a semiconductor wire including a source region (132), a drain region (134), and a channel region (130) between the source region (132) and the drain region (134). A gate structure that overlies the channel region includes a memristive portion (120) and a conductive portion (110) overlying the memristive portion (120).
Abstract:
Various aspects of the prsent invention are directed to electric-field-enhancement structures (100) and detection apparatuses (600, 700, 800) that employ such electric-field-enhancement structures. In one aspect of the present invention, an electric-field-enhancement structure (100) includes a substrate (102) having a surface (104). The substrate (102) is capable of supporting a planar mode (114) having a planar-mode frequency. A plurality of nanofeatures (106) is associated with the surface (104), and each of nanofeatures (106) exhibits a localized-surface-plasmon mode (116) having a localized-surface-plasmon frequency approximately equal to the planar-mode frequency.
Abstract:
A contact lithography system (100, 200) includes a patterning tool (110, 228a, 510) bearing a pattern (112); a substrate chuck (214) for chucking a substrate (130, 228b) to receive the pattern (112) from the patterning tool (110, 228a, 510); where the system (100, 200) deflects a portion of either the patterning tool (110, 228a, 510) or the substrate (130, 228b) to bring the patterning tool (110, 228a, 510) and a portion of the substrate (130, 228b) into contact; and a stepper (260) for repositioning either or both of the patterning tool (110, 228a, 510) and substrate (130, 228b) to align the pattern (112) with an additional portion of the substrate (130, 228b) to also receive the pattern (112). A method of performing contact lithography comprising: deflecting a portion of either a patterning tool (110, 228a, 510) or a substrate (130, 228b) to bring the patterning tool (110, 228a, 510) and a portion of the substrate (130, 228b) into contact; and repositioning either or both of the patterning tool (110, 228a, 510) and substrate (130, 228b) to align a pattern (112) on the patterning tool (110, 228a, 510) with an additional portion of the substrate (130, 228b) to also receive the pattern (112).
Abstract:
A multi-tiered network (100, 100') for gathering detected condition information includes a first tier (102) having first tier nodes (104) and a second tier (106) having a second tier node (108). The second tier node (108) is operable to receive detected condition information from at least one of the first tier nodes (104) in a substantially autonomous manner. In addition, the second tier node (108) is operable to at least one of store, process, and transmit the detected condition information. The network (100, 100') also includes a third tier (110) having a third tier node (112) configured to receive the detected condition information and to at least one of store and process the detected condition information.
Abstract:
A multi-tiered network (100, 100') for gathering detected condition information includes a first tier (102) having first tier nodes (104) and a second tier (106) having a second tier node (108). The second tier node (108) is operable to receive detected condition information from at least one of the first tier nodes (104) in a substantially autonomous manner. In addition, the second tier node (108) is operable to at least one of store, process, and transmit the detected condition information. The network (100, 100') also includes a third tier (110) having a third tier node (112) configured to receive the detected condition information and to at least one of store and process the detected condition information.
Abstract:
A SERS-active structure (100, 150) is disclosed that includes a substrate (110) and at least one nanowire (120) disposed on the substrate. The at least one nanowire includes a core (118) including a first material and a coating (119) including a SERS-active material. A SERS system (160) is also disclosed that includes a SERS-active structure (100, 150). Also disclosed are methods for forming a SERS-active structure and methods for performing SERS with SERS-active structures.