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1. A Highly Practical Route for Large-Area, Single Layer Graphene from Liquid Carbon Sources such as Benzene and Methanol
Published: 10/28/2011
Authors: Gadipelli Srinivas, Irene G. Calizo, Jamie Ford, Guangjun Cheng, Angela R Hight Walker, Taner Yildirim
Abstract: Through a detailed systematic study, we determined the parameters critical for high-quality, single-layer graphene formation and developed a straightforward synthesis that requires no explosive hydrogen or methane gas flow. The synthesis is further ...

2. An Assessment of Passive Microwave and Millimeterwave Sensors for the Standoff Detection of Chemical Agents
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7172
Published: 7/1/2004
Authors: Gerald T Fraser, Angela R Hight Walker

3. Analytical Applications of Fourier Transform Microwave (FTMW) Spectroscopy to Trace Gas Analysis
Published: 1/1/1996
Authors: R D. Suenram, Francis John Lovas, J U Grabow, Angela R Hight Walker, C Lugez, P M Chu

4. Centrifugal Length Separation of Carbon Nanotubes
Published: 10/1/2008
Authors: Jeffrey A Fagan, Matthew Becker, Jae H. Chun, Barry J. Bauer, Jeffrey Ray Simpson, Angela R Hight Walker, Erik K. Hobbie
Abstract: Separation of single wall carbon nanotubes (SWCNTs) by length via centrifugation in a high density medium, and the characterization of both the separated fractions and the centrifugation process are presented. Significant quantities of the separated ...

5. Characteristics of Graphene for Quantized Hall Effect Measurements
Published: 6/1/2012
Authors: Randolph E Elmquist, Mariano A. Real, Irene G. Calizo, Brian G Bush, Tian T. Shen, Nikolai Nikolayevich Klimov, David B Newell, Angela R Hight Walker, Randall M. Feenstra
Abstract: This paper describes concepts and measurement techniques necessary for characterization of graphene in the development of graphene-based quantized Hall effect (QHE) devices and resistance standards. We briefly contrast the properties of graphene prod ...

6. Characterization of the Coherent Microwave Emission From the Surf II Synchrotron Storage Ring
Published: 7/1/1997
Authors: Gerald T Fraser, Angela R Hight Walker, Thomas B Lucatorto, Uwe Arp, K. K. Lehmann
Abstract: The temporal profile and frequency spectrum of the microwave emission from the Synchrotron Ultraviolet Radiation Facility [SURF II] electron storage ring at the National Institute of Standards and Technology have been studied to access the utility of ...

7. Comparative Measures of Single Wall Carbon Nanotube Dispersion
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 ...

8. Complete Structure of Gauche 1,1,2,2-Tetrafluoroethane Determined by Microwave Spectroscopy
Published: 10/1/2000
Authors: B Mate, Angela R Hight Walker, R D. Suenram, N Craig
Abstract: The complete molecular structure of the high-energy, gauche rotamer of 1,1,2,2-tetrafluoroethane (TFEA), Freon F134, has been determined using Fourier transform microwave spectroscopy. A total of five different ^u13^C and ^u2^H substituted isotopomer ...

9. Conformational Analysis of the Jet-Cooled Peptide Mimetic Ethylacetamidoacetate from Torsion-Rotation Spectra
Published: 9/1/2003
Authors: R J. Lavrich, Angela R Hight Walker, David F Plusquellic, I Kleiner, R D. Suenram, Jon Torger Hougen, Gerald T Fraser
Abstract: Rotational spectra of two conformers of the dipeptide mimetic, ethyl acetamidoacetate, were measured in a molecular beam using a Fourier-transform microwave spectrometer. In each conformer, internal rotation of the acetyl methyl group gives rise to ...

10. Conformational Analysis of the Jet-cooled Peptide Mimetic Ethylacetamidoacetate from Torsion-Rotation Spectra
Published: 1/1/2003
Authors: R J. Lavrich, Angela R Hight Walker, David F Plusquellic, I Kleiner, R D. Suenram, Jon Torger Hougen, Gerald T Fraser

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