Search Results - "Perea, D. E"

Role of Photoexcitation and Field Ionization in the Measurement of Accurate Oxide Stoichiometry by Laser-Assisted Atom Probe Tomography by Devaraj, A, Colby, R, Hess, W. P, Perea, D. E, Thevuthasan, S

“…The addition of pulsed lasers to atom probe tomography (APT) extends its high spatial and mass resolution capability to nonconducting materials, such as…”
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Highly Efficient Charge Separation and Collection across in Situ Doped Axial VLS-Grown Si Nanowire p–n Junctions by Mohite, A. D, Perea, D. E, Singh, S, Dayeh, S. A, Campbell, I. H, Picraux, S. T, Htoon, H

“…VLS-grown semiconductor nanowires have emerged as a viable prospect for future solar-based energy applications. In this paper, we report highly efficient…”
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Purity Evaluation of As-Prepared Single-Walled Carbon Nanotube Soot by Use of Solution-Phase Near-IR Spectroscopy by Itkis, M. E, Perea, D. E, Niyogi, S, Rickard, S. M, Hamon, M. A, Hu, H, Zhao, B, Haddon, R. C

“…We report a rapid, quantitative procedure for the evaluation of the carbonaceous purity of bulk quantities of as-prepared single-walled carbon nanotube (SWNT)…”
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A method for site-specific and cryogenic specimen fabrication of liquid/solid interfaces for atom probe tomography by Schreiber, D.K., Perea, D.E., Ryan, J.V., Evans, J.E., Vienna, J.D.

“…•Cryogenic FIB used to produce APT specimens at a buried frozen water/solid interface.•Approach uses novel redeposition nanowelds to facilitate site-specific…”
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Optimization of the Ni−Y Catalyst Composition in Bulk Electric Arc Synthesis of Single-Walled Carbon Nanotubes by Use of Near-Infrared Spectroscopy by Itkis, M. E, Perea, D. E, Niyogi, S, Love, J, Tang, J, Yu, A, Kang, C, Jung, R, Haddon, R. C

“…The influence of Ni−Y catalyst composition on the bulk scale synthesis of single-walled carbon nanotubes (SWNTs) is studied using solution phase near-infrared…”
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New frontiers in atom probe tomography: a review of research enabled by cryo and/or vacuum transfer systems by McCarroll, I.E., Bagot, P.A.J., Devaraj, A., Perea, D.E., Cairney, J.M.

“…There has been a recent surge in the use of cryo and/or vacuum specimen preparation and transfer systems to broaden the scope of research enabled by the…”
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Cryo-based structural characterization and growth model of salt film on metal by Li, Tianshu, Perea, D.E., Schreiber, D.K., Wirth, Mark G., Orren, Graham J., Frankel, G.S.

“…•Salt film formed on SS304 was characterized using flash freezing and cryo-FIB/SEM.•Salt film exhibits porous structure with many pores, gaps and…”
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Extinction coefficients and purity of single-walled carbon nanotubes by Zhao, B, Itkis, M E, Niyogi, S, Hu, H, Perea, D E, Haddon, R C

“…Single-walled carbon nanotubes (SWNTs) hold great promise for advanced applications in aerospace, electronics and medicine, yet these industries require…”
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Ultrasonic Dispersions of Single-Walled Carbon Nanotubes by Niyogi, S., Hamon, M. A., Perea, D. E., Kang, C. B., Zhao, B., Pal, S. K., Wyant, A. E., Itkis, M. E., Haddon, R. C.

“…The nature of single-walled carbon nanotube (SWNT)−solvent interaction that is responsible for the stabilization of ultrasonicated dispersions was investigated…”
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Tracking Ultrafast Carrier Dynamics in Single Semiconductor Nanowire Heterostructures by Seo, M.A., Yoo, J., Perea, D.E., Dayeh, S. A., Picraux, S. T., Taylor, A.J., Prasankumar, R.P.

“…An understanding of non-equilibrium carrier dynamics in silicon (Si) nanowires (NWs) and NW heterostructures is very important due to their many nanophotonic…”
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Cryo-based structural characterization and growth model of salt film on metal by Li, Tianshu, Perea, D. E., Schreiber, D. K., Wirth, Mark G., Orren, Graham J., Frankel, G. S.

“…Metal salt films play a critical role in high rate dissolution processes such as within an active pit. However, structural and compositional characterization…”
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Pushing the limits: Resolving paleoseawater signatures in nanoscale fluid inclusions by atom probe tomography by Taylor, S.D., Gregory, D.D., Perea, D.E., Kovarik, L., Cliff, J.B., Lyons, T.W.

“…New insight into the geochemistry of ancient environments can be gained through structural and chemical analyses of nanometer-scale features within minerals…”
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A method for site-specific and cryogenic specimen fabrication of liquid/solid interfaces for atom probe tomography by Schreiber, D. K., Perea, D. E., Ryan, J. V., Evans, J. E., Vienna, J. D.

“…A site-specific, cryogenic, focused ion beam (FIB) method is presented for the preparation of atom probe tomography (APT) specimens from a frozen liquid/solid…”
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Petrogenesis, alteration, and shock history of intermediate shergottite Northwest Africa 7042: Evidence for hydrous magmatism on Mars? by Kizovski, T.V., Izawa, M.R.M., Tait, K.T., Moser, D.E., Day, J.M.D., Hyde, B.C., White, L.F., Kovarik, L., Taylor, S.D., Perea, D.E., Barker, I.R., Joy, B.R.

“…Northwest Africa (NWA) 7042 is an intermediate, permafic shergottite consisting of two generations of olivine (early zoned olivine Fo41-76, and late-stage…”
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Tomographic analysis of dilute impurities in semiconductor nanostructures by Perea, D.E., Wijaya, E., Lensch-Falk, J.L., Hemesath, E.R., Lauhon, L.J.

“…We describe the application of pulsed-laser atom probe (PLAP) tomography to the analysis of dopants and unintentional impurities in Si and Ge nanowires grown…”
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Silicon and germanium nanowires: Growth, properties, and integration by Picraux, S. Tom, Dayeh, Shadi A., Manandhar, Pradeep, Perea, Daniel E., Choi, Sukgeun G.

“…Semiconducting nanowires are an area of widespread interest in nanomaterials research because of the ability to fabricate one-dimensional structures with…”
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Composition analysis of single semiconductor nanowires using pulsed-laser atom probe tomography by Perea, D.E., Lensch, J.L., May, S.J., Wessels, B.W., Lauhon, L.J.

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Comparison of Analytical Techniques for Purity Evaluation of Single-Walled Carbon Nanotubes by Itkis, Mikhail E, Perea, Daniel E, Jung, Richard, Niyogi, Sandip, Haddon, Robert C

“…We compare popular analytical techniques, including scanning and transmission electron microscopy (SEM and TEM), thermogravimetric analysis (TGA), and Raman…”
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Tomographic analysis of dilute impurities in semiconductor nanostructures: Solid State Chemistry on the Nanoscale: Achievements, Challenges, and Opportunities by PEREA, D. E, WIJAYA, E, LENSCH-FALK, J. L, HEMESATH, E. R, LAUHON, L. J

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Three-Dimensional Nanoscale Composition Mapping of Semiconductor Nanowires by Perea, Daniel E, Allen, Jonathan E, May, Steven J, Wessels, Bruce W, Seidman, David N, Lauhon, Lincoln J

“…We demonstrate the three-dimensional composition mapping of a semiconductor nanowire with single-atom sensitivity and subnanometer spatial resolution using…”
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