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You searched on: Topic Area: Nanomaterials

Displaying records 141 to 150 of 158 records.
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141. Comparative Measures of Single Wall Carbon Nanotube Dispersion
Topic: Nanomaterials
Published: 9/14/2006
Authors: Jeffrey A Fagan, Brian Landi, Idan Mandelbaum, Vardhan Bajpai, Barry J. Bauer, Kalman D Migler, Jeffrey Ray Simpson, Angela R Hight Walker, Ryan Raffaelle, Erik K. Hobbie
Abstract: Model polymer composites of DNA wrapped single-wall carbon nanotubes (SWNTs) dispersed in polyacrylic acid are used for a systematic comparison of the different metrologies currently used to evaluate SWNT dispersion. Application of a pH-controlled v ...

142. Real Time Shape Evolution of Nanoimprinted Polymer Structures During Thermal Annealing
Topic: Nanomaterials
Published: 7/18/2006
Authors: Ronald Leland Jones, T Hu, Christopher L Soles, Eric K Lin, R M Reano, Stella W Pang, D M Casa
Abstract: The real time shape of nanoimprinted polymer patterns are measured as a function of annealing temperature and time using a new metrology technique, Critical Dimension Small Angle X-ray Scattering (CD-SAXS). Periodicity, linewidth, line height, and s ...

143. Mapping substrate/film adhesion with contact-resonance-frequency AFM
Topic: Nanomaterials
Published: 7/12/2006
Authors: Donna C. Hurley, Malgorzata Kopycinska-Mueller, Eric Langlois, Tony B. Kos, Nicholas Barbosa
Abstract: We demonstrate contact-resonance-frequency atomic force microscopy (AFM) techniques to nondestructively image variations in adhesion at a substrate/film interface. Contact-resonance-frequency imaging is a dynamic AFM technique to measure the contact ...

144. Effect of Self-Assembled Monolayer Film Order on Nanofriction
Topic: Nanomaterials
Published: 7/6/2006
Authors: S Sambasivan, S Hsieh, Daniel A Fischer, Stephen M. Hsu
Abstract: Friction at the nanoscale has become a significant challenge for microsystems, including MEMS, NEMS and other devices. At nanoscale, lateral loading often causes component breakage and loss of functions in devices, therefore, accurate measurement and ...

145. Mesoporous nanoparticle TiO2 thin films for conductometric gas sensing on microhotplate plateforms
Topic: Nanomaterials
Published: 1/1/2006
Authors: Kurt D Benkstein, Stephen Semancik

146. Multiscale Modeling of Germanium Quantum Dots in Silicon
Topic: Nanomaterials
Published: 12/30/2005
Authors: Vinod K Tewary, David Thomas Read
Abstract: A method is described for multiscale modeling of a quantum dot in a semiconductor containing a free surface. The method is based upon the use of the lattice-statics and continuum Green's functions integrated with classical molecular dynamics. It full ...

147. Acoustic Modes and Elastic Properties of Polymeric Nanostructures
Topic: Nanomaterials
Published: 10/21/2005
Authors: R Hartschuh, A Kisliuk, V N Novikov, Alexei Sokolov, Paul R Heyliger, Colm Flannery, Ward L Johnson, Christopher L Soles, Wen-Li Wu
Abstract: Fabricating mechanically robust polymer structures with nanoscale dimensions is critical for a wide range of emerging technologies. The rigidity of such structures is expected to change as the feature sizes approach the characteristic dimensions of ...

148. Brillouin light scattering from pumped uniform-precession and low-k magnons in Ni81Fe19
Topic: Nanomaterials
Published: 3/4/2005
Authors: Ward L Johnson, Sudook A Kim, Stephen E Russek, Pavel Kabos
Abstract: A method is presented for performing Brillouin-light-scattering measurements on uniform-precession and low-wave-number (Iow-k) magnons excited by a microwave magnetic field in opaque magnetic specimens. The optical configuration is similar to that e ...

149. Multiscale Green's Function Modeling of Defects in a Semi-Infinite Silicon Substrate
Topic: Nanomaterials
Published: 3/3/2005
Authors: B. Yang, Vinod K Tewary
Abstract: We have developed a Green's function (GF) based multiscale modeling of defects in a semi-infinite Si-substrate. Point defects and substrate surface (i.e., extended defect) at two different scales are modeled in a unified manner. Behaviors of the poin ...

150. Development of Multilayer Analyzer Array Detectors for X-ray Fluorescence at the Third Generation Synchrotron Source
Topic: Nanomaterials
Published: 8/5/2004
Authors: Z M Zhang, G Rosenbaum, Q Liu, Daniel A Fischer
Abstract: It is a natural to use multilayer analyzers as energy resolving x-ray fluorescence detection in the lower energy region to use multilayer analyzers. The analyzer array detectors can afford large detection solid angle, superb energy resolution, and ...

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