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You searched on: Topic Area: Nanomaterials

Displaying records 31 to 40 of 75 records.
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31. A three-dimensional, polarization-insensitive superconducting nanowire avalanche photodetector
Topic: Nanomaterials
Published: 12/20/2012
Authors: Varun Boehm Verma, Francesco F. Marsili, Adriana Eleni Lita, Richard P Mirin, Sae Woo Nam
Abstract: Single-photon detectors are an essential tool for a wide range of applications in quantum information, quantum communications, and quantum optics. Over the past decade, superconducting nanowire single-photon detectors (SNSPDs) have become promising a ...

32. Differentiation and characterization of isotopically modified silver nanoparticles in aqueous media using asymmetric-flow field flow fractionation coupled to optical detection and mass spectrometry
Topic: Nanomaterials
Published: 12/10/2012
Authors: Julien C. Gigault, Vincent A Hackley
Abstract: The principal objective of this work was to develop and demonstrate a new methodology for silver nanoparticle (AgNP) detection and characterization based on asymmetric-flow field flow fractionation (A4F) coupled to multiple detectors and using stable ...

33. High-energy Ultra-Small Angle X-ray Scattering Instrument at the Advanced Photon Source
Topic: Nanomaterials
Published: 12/1/2012
Authors: Andrew John Allen, Lyle E Levine, Fan Zhang, Gabrielle Gibbs Long, Jan Ilavsky, Pete R. Jemian
Abstract: This paper reports recent tests performed on the Bonse-Hart-type ultra-small angle X-ray scattering (USAXS) instrument at the Advanced Photon Source with higher-order reflection optics , Si (440) instead of Si (220) , and with X-ray energies greate ...

34. Evaluation of Metal Oxide Nanowire Materials with Temperature-Controlled Microsensor Substrates
Topic: Nanomaterials
Published: 11/30/2012
Authors: Kurt D Benkstein, Baranidharan Raman, David L. Lahr, Stephen Semancik
Abstract: Nanomaterials are becoming increasingly important for next-generation chemical sensing devices. In particular, quasi-one-dimensional materials, such as nanowires, are attracting a great deal of interest. While early examples of nano-wire-based chemic ...

35. Capillary Wave Dynamics of Thin Polymer films over Submerged Nanostructures
Topic: Nanomaterials
Published: 11/16/2012
Authors: Christopher Soles, Hyun Wook Ro, K. J. Alvine, Oleg Shpyrko, Yenling Dai, Alec Sandy, Suresh Narayanan
Abstract: The surface dynamics of thin molten polystyrene films supported by nanoscale periodic silicon line-space gratings were investigated with X-ray photon correlation spectroscopy. Surface dynamics over these nanostructures exhibit high directional aniso ...

36. Giant piezoelectricity in PMN-PT thin films: Beyond PZT
Topic: Nanomaterials
Published: 11/1/2012
Authors: S. H. Baek, M. S. Rzchowski, Vladimir A Aksyuk
Abstract: Micro-electromechanical systems (MEMS) incorporating piezoelectric layers provide active transduction between electrical and mechanical energy, which enables highly sensitive sensors and low-voltage driven actuators surpassing the passive operation o ...

37. Anomalous Friction in Suspended Graphene
Topic: Nanomaterials
Published: 9/20/2012
Authors: Alexander Y Smolyanitsky, Jason Philip Killgore
Abstract: Since the discovery of the Amonton's law and with support of modern tribological models, friction between surfaces of three-dimensional materials is known to generally increase when the surfaces are in closer contact. Here, using molecular dynamics s ...

38. Colorimetric Detection with Aptamer-Gold Nanoparticle Conjugates: Effect of Aptamer Length on Response
Topic: Nanomaterials
Published: 9/14/2012
Authors: Jorge L Chavez, Robert I. MacCuspie, Nancy Kelley-Loughnane, Morley O Stone
Abstract: A riboflavin binding aptamer (RBA) was used in combination with gold nanoparticles (AuNPs) to detect riboflavin in vitro. The RBA-AuNPs responded colorimetrically to the presence of riboflavin and this response could be followed by the naked eye. We ...

39. Microwave measurements and systematic circuit-model extraction of nanowire metal semiconductor field-effect transistors
Topic: Nanomaterials
Published: 8/24/2012
Authors: Dazhen Gu, Thomas M Wallis, Pavel Kabos, Paul T Blanchard, Kristine A Bertness, Norman A Sanford
Abstract: We present detailed on-wafer scattering parameter measurements and equivalent circuit modeling of metal semiconductor field effect transistor (MESFET) that incorporates a GaN nanowire (NW). A systematic procedure is established to extract intrinsic m ...

40. Contact resistance of low-temperature carbon nanotube vertical interconnects
Topic: Nanomaterials
Published: 8/20/2012
Authors: Ann Chiaramonti Chiaramonti Debay, Sten Vollebregt, R. Ishihara, Hugo Schellevis, Kees Beenakker
Abstract: In this work the electrical contact resistance and length dependant resistance of vertically aligned carbon nano- tubes (CNT) grown at 500 °C with high tube density (1011) are investigated by measuring samples with different CNT lengths. From scannin ...

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