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Topic Area: Nanomaterials

Displaying records 1 to 10 of 158 records.
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1. Citrate-stabilized gold nanoparticles do not impact neural progenitor cell development
Topic: Nanomaterials
Published: 1/5/2015
Authors: Kavita M Jeerage, Tammy L. Oreskovic, Alexandra E Curtin, Aric Warner Sanders, Rani K. Schwindt, Ann Chiaramonti Chiaramonti Debay
Abstract: Gold nanoparticles are promising candidates for medical diagnostics and therapeutics, due to their chemical stability, optical properties, and ease of functionalization. Citrate-stabilized gold nanoparticle reference materials also have potential ...

2. Reliability of Low Temperature Grown Multi-Wall Carbon Nanotube Bundles Integrated as Vias in Monolithic Three-Dimensional Integrated Circuits
Topic: Nanomaterials
Published: 8/26/2014
Authors: Ann Chiaramonti Chiaramonti Debay, Sten Vollebregt, Aric Warner Sanders, Alexandra E Curtin, R. Ishihara, David Thomas Read
Abstract: In this extended abstract we present our recent results on the reliability testing of multi-wall carbon nanotube vertical interconnects (vias).

3. Dielectric characterization by microwave cavity perturbation corrected for non-uniform fields
Topic: Nanomaterials
Published: 7/23/2014
Authors: Nathan Daniel Orloff, Jan Obrzut, Christian John Long, Thomas Fung Lam, James C Booth, David R Novotny, James Alexander Liddle, Pavel Kabos
Abstract: The non-uniform fields that occur due to the slot in the cavity through which the sample is inserted and those due to the sample geometry itself decrease the accuracy of dielectric characterization by cavity perturbation at microwave frequencies. ...

4. Cathodoluminescence Quantum Efficiency of Quantum Dot Thin Films
Topic: Nanomaterials
Published: 7/7/2014
Authors: Heayoung Yoon, Christopher Bohn, Youngmin Lee, Seung H. Ko, Jonathan S. Steckel, Seth Coe-Sullivan, Nikolai B Zhitenev
Abstract: A thin film of quantum dots (QD) was used to visualize the local photo-response of polycrystalline CdTe solar cells by down-converting an electron beam of high energy to photons of visible light. The efficient photon generation in the QD film is comp ...

5. Effects of surface compliance and relaxation on the frictional properties of lamellar materials
Topic: Nanomaterials
Published: 6/10/2014
Authors: Alexander Y Smolyanitsky, Shuze Zhu, Zhao Z. Deng, Teng Li, Rachel J. Cannara

6. Microsensors for Mars: Trace Analyte Detection in a Simulated Martian Environment
Topic: Nanomaterials
Published: 5/23/2014
Authors: Kurt D Benkstein, Phillip H. Rogers, Christopher B Montgomery, C. Jin, Baranidharan Raman, Stephen Semancik
Abstract: Chemiresistive microsensor arrays are being developed and tested in a simulated Martian environment. Target analyte species include trace small molecules that may indicate current geological or, potentially, biological activity on Mars. The sensi ...

7. Twin Plane Re-entrant Mechanism for Catalytic Nanowire Growth
Topic: Nanomaterials
Published: 3/12/2014
Authors: Andrew D. Gamalski, Peter W. Voorhees, Renu Sharma, Caterina Ducati, Stephan Hofmann
Abstract: We observe a twin plane re-entrant based growth mechanism for Au catalyzed Ge nanowire growth using video-rate lattice-resolved environmental transmission electron microscopy. For a [112] growth direction, we find a convex, V-shaped liquid catalyst ...

8. Characterization of InGaN quantum disks in GaN nanowires
Topic: Nanomaterials
Published: 3/4/2014
Authors: Alexana Roshko, Roy Howard Geiss, John B Schlager, Matthew David Brubaker, Kristine A Bertness, Norman A Sanford, Todd E Harvey
Abstract: Catalyst-free GaN nanowires with InGaN quantum disks (QDs) were characterized by scanning/transmission elec-tron microscopy (S/TEM) and photoluminescence. A va-riety of structures, from QDs with large strain fields to apparently strain free QDs were ...

9. Laser-assisted atom probe tomography of MBE grown GaN nanowire heterostructures
Topic: Nanomaterials
Published: 2/24/2014
Authors: Norman A Sanford, Paul Timothy Blanchard, Matthew David Brubaker, Kristine A Bertness, John B Schlager, R Kirchofer, David R Diercks, Brian Gorman
Abstract: Laser-assisted atom probe tomography (L-APT) was performed on GaN nanowires (NWs) and axial GaN/InGaN nanowire heterostructures. All samples were grown by MBE on Si(111) substrates. The laser pulse energy (PE) at 355 nm used in L-APT analysis of Ga ...

10. Nanoscale mechanics by tomographic contact resonance atomic force microscopy
Topic: Nanomaterials
Published: 1/23/2014
Authors: Gheorghe Stan, Santiago Solares, Bede Pittenger, Natalia Erina, Chanmin Su
Abstract: We report on a quantifiable depth-dependent contact resonance AFM (CR-AFM) measurements over polystyrene-polypropylene (PS-PP) polymer blends to detail surface and sub-surface features in terms of elastic modulus and mechanical dissipation. The depth ...

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