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You searched on: Topic Area: Nanostructured Materials

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1. Detecting Carbon in Carbon: Application of Differential Charging to Obtain Information on the Chemical Identity and Spatial Location of Carbon Nanotube Aggregates in Composites by Imaging X-ray Photoelectron Spectroscopy
Topic: Nanostructured Materials
Published: 10/24/2015
Authors: Justin M Gorham, William A Osborn, Jeremiah W Woodcock, Keana C K Scott, John Michael Heddleston, Angela R Hight Walker, Jeffrey W Gilman
Abstract: The surface contributions and dispersion properties of multiwalled carbon nanotubes (MWCNT) within a composite are important measurements to perform on nano-enabled products in order to help answer environmental health and safety questions associated ...

2. Homogeneous Linewidth Narrowing of the Charged Exciton via Nuclear Spin Screening in an InAs/GaAs Quantum Dot Ensemble
Topic: Nanostructured Materials
Published: 11/18/2014
Authors: Galan A Moody, Mingming M. Feng, Corey Alexander McDonald, Richard P Mirin, Kevin Lawrence Silverman
Abstract: In semiconductor quantum dots, the electron hyperfine interaction with the nuclear spin bath is the leading source of spin decoherence at cryogenic temperature. Using high-resolution two-color differential transmission spectroscopy, we demonstra ...

3. Non-contact Conductance Measurement of Nanosize Objects using Reasonant Cavity
Topic: Nanostructured Materials
Published: 5/15/2014
Authors: Jan Obrzut, Nathan D Orloff, Oleg A Kirillov
Abstract: A cavity perturbation method is used to determine conductance of small volume nano-carbon materials. These are the building blocks of nanostructured materials and devices, and therefore their electrical characteristics are important in the materials ...

4. Storage Wars: How citrate capped silver nanoparticle suspensions are affected by not-so-trivial decisions
Topic: Nanostructured Materials
Published: 3/21/2014
Authors: Justin M Gorham, Anne B Rohlfing, Katrice A Lippa, Robert I. MacCuspie, Amy Hemmati, Richard D Holbrook
Abstract: A critical but often overlooked component of silver nanoparticle (AgNPs) suspensions involves their behavior following short- and long-term storage. The current study investigates the integrity of citrate-capped AgNP suspensions, nominally 20 nm in ...

5. Steering Acoustically Propelled Nanowire Motors towards Cells in a Biologically Compatible Environment using Magnetic Fields
Topic: Nanostructured Materials
Published: 12/10/2013
Authors: Suzanne Ahmed, Wei Wang, Lamar O. Mair, Robert D. Fraleigh, Sixing Li, Luz Angelica Castro, Mauricio Hoyos, Tony Jun Huang, Thomas E. Mallouk
Abstract: The recent discovery of fuel-free propulsion of nanomotors using acoustic energy has provided a new avenue for using nanomotors in biocompatible media. Crucial to the application of nanomotors in biosensing and biomedical applications is the ability ...

6. Strong Casimir force reduction by metallic surface nanostructuring
Topic: Nanostructured Materials
Published: 9/27/2013
Authors: Francesco Intravaia, Stefan T. Koev, Il Woong Jung, Albert A. Talin, Paul S Davids, Ricardo Decca, Vladimir A Aksyuk, Diego A. R. Dalvit, Daniel Lopez
Abstract: The Casimir force is a quantum-mechanical interaction arising from vacuum fluctuations of the electromagnetic (EM) field and is technologically significant in micro- and nanomechanical systems. Despite rapid progress in nanophotonics, the goal of e ...

7. Visualization of phase evolution in model organic photovoltaic structures via energy-filtered transmission electron microscopy
Topic: Nanostructured Materials
Published: 8/9/2013
Authors: Andrew A Herzing, Hyun Wook Ro, Christopher Soles, Dean M DeLongchamp
Abstract: The morphology of the active layer in an organic photovoltaic bulk-heterojunction device is controlled by the extent and nature of phase separation during processing. Herein, we have examined the effects of fullerene crystallinity in the most wi ...

8. Structure stability and electronic transport of gold nanowires on BeO (0001) surface
Topic: Nanostructured Materials
Published: 7/12/2013
Authors: Shmuel Barzilai, Francesca M Tavazza, Lyle E Levine
Abstract: Gold nanowire chains are considered a good candidate for nanoelectronics devices since they exhibit remarkable structural and electrical properties. For practical engineering devices, -wurtzite BeO may be a useful platform for supporting the ...

9. Resonant Microwave Absorption in Thermally Deposited Au Nanoparticle Films Near Percolation Coverage
Topic: Nanostructured Materials
Published: 6/19/2013
Authors: Jan Obrzut, Jack F Douglas, Oleg A Kirillov, Fred Sharifi, James Alexander Liddle
Abstract: We observe a resonant transition in microwave absorption in thin thermally deposited Au nanoparticle films near the geometrical percolation transition pc where the films exhibit a ,fractal‰ heterogeneous geometry. The absorption of incident microwa ...

10. ,Real-worldŠ precision, bias, and between-laboratory variation for surface area measurement of a titanium dioxide nanomaterial in powder form
Topic: Nanostructured Materials
Published: 6/1/2013
Authors: Vincent A Hackley, Aleksandr B. Stefaniak
Abstract: Accurate characterization of nanomaterial properties is a critical component of any nanotoxicology testing strategy. Data that describes the performance of various laboratories to measure the characteristics of the same nanomaterial is scarce. We c ...

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