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NIST Authors in Bold

Displaying 551 - 575 of 2122

Experimental and Theoretical Evidence of Hydrogen Doping in Solution Processed Indium Gallium Oxide via Polymer Incorporation

July 23, 2020
Author(s)
Wei Huang, Joshua Tedesco, Po-Hsiu Chien, Kyle McMillen, Li Zeng, Subhrangsu Mukherjee, Binghao Wang, Yao Chen, Gang Wang, Yang Wang, Yanshan Gao, Michael Bedzyk, Dean DeLongchamp, Julia E. Medvedeva, Yan-Yan Hu, Tobin Marks, Antonio Facchetti
Aqueous solution processed high performance indium gallium oxide (IGO) thin-film transistors (TFTs) are realized by the simple addition of a hydroxyl (C-OH) containing polymer [polyvinyl alcohol (PVA)] into an IGO precursor solution. The field-effect

Capillary RheoSANS: Measuring the Rheology and Nanostructure of Complex Fluids at High Shear Rates

July 15, 2020
Author(s)
Ryan P Murphy, Zachary W. Riedel, Marshall A. Nakatani, Paul Salipante, Javen S. Weston, Steven D. Hudson, Kathleen M Weigandt
Complex fluids containing micelles, proteins, polymers and inorganic nanoparticles are often processed and used in high shear environments that can lead to structural changes at the nanoscale. Here, capillary rheometery is combined with small-angle neutron

Scientific AI in Materials Science: a Path to a Sustainable and Scalable Paradigm

July 14, 2020
Author(s)
Brian L. DeCost, Jason R. Hattrick-Simpers, Zachary T. Trautt, Aaron G. Kusne, Martin L. Green, Eva Campo
Recent years have seen an ever-increasing trend in the use of machine learning (ML) and artificial intelligence (AI) methods by the materials science, condensed matter physics, and chemistry communities. This perspective article identifies key scientific

Charpy Instrumented Test Suite and User's Manual

July 9, 2020
Author(s)
Damian Lauria, Enrico Lucon, Felipe Baldner
The NIST Instrumented Charpy Test Suite is a set of standalone programs intended to allow anyone with appropriate hardware to perform and analyze instrumented Charpy impact tests. The software is provided in both raw code and executable formats with an

Reversible Room-Temperature Fluoride-Ion Insertion in a Tunnel-Structured Transition Metal Oxide Host

July 6, 2020
Author(s)
Cherno Jaye, Wasif Zaheer, Justin L. Andrews, Forrest P. Hyler, Conan Weiland, David A. Shapiro, Jinghua Guo, Jesus M. Velazquez, Sarbajit Banerjee, Abhishek Parija, Daniel A. Fischer
An energy storage paradigm orthogonal to conventional Li-ion battery chemistries can be conceptualized by employing anions as the primary charge carriers. F-ion conversion chemistries show promise but have limited cyclability as a result of the significant

On the precipitation kinetics, microstructure evolution and mechanical behavior of a developed Al- Mn-Sc alloy fabricated by selective laser melting

July 1, 2020
Author(s)
Qingbo Jia, Fan Zhang, Paul Rometsch, Jitendra Mata, Jingwei Li, Matthew Weyland, Laure Bourgeois, Manling Sui, Xinhua Wu
The dynamic metallurgical characteristics of the selective laser melting (SLM) process offer fabricated materials with non-equilibrium microstructures compared to their cast and wrought counterparts. To date, few studies on the precipitation kinetics of

Materials for Hydrogen-Based Energy Storage - Past, Recent Progress and Future Outlook

June 25, 2020
Author(s)
Michael Hirscher, Volodymir A. Yartys, Marcello Baricco, Jose Bellosta von Colbe, Didier Blanchard, Jr. Bowman, Darren P. Broom, Craig E. Buckley, Fei Chang, Ping Chen, Young Whan Cho, Jean-Claude Crivello, Fermin Cuevas, William I. F. David, Petra E. de Jongh, Roman V. Denys, Martin Dornheim, Michael Felderhoff, Yaroslav Filinchuk, George E. Froudakis, David M. Grant, Evan MacA. Gray, Bjorn C. Hauback, Teng He, Terry D. Humphries, Torben R. Jensen, Sangryun Kim, Yoshitsugu Kojima, Michel Latroche, Hai-Wen Li, Mykhaylo V. Lototskyy, Joshua W Makepeace, Kasper T. Moller, Lubna Naheed, Peter Ngene, Dag Noreus, Magnus Moe Nygard, Shin-Ichi Orimo, Mark Paskevicius, Luca Pasquini, Dorthe B. Ravnsbaek, M Veronica Sofianos, Terrence J. Udovic, Tejs Vegge, Gavin S. Walker, Colin J. Webb, Claudia Weidenthaler, Claudia Zlotea

Water-Polyamide Chemical Interplay in Desalination Membranes explored by Ambient Pressure X-ray Photoelectron Spectroscopy

June 24, 2020
Author(s)
Sabrina Gericke, William D. Mulhearn, Dana E. Goodacre, Joseph Raso, Daniel J. Miller, Lauryn Carver, Slavomir Nemsak, Osman Karslioglu, Lena Trotochaud, Hendrik Bluhm, Christopher Stafford, Christin Buechner
Reverse osmosis using aromatic polyamide membranes is currently the most important technology for seawater desalination. The performance of reverse osmosis membranes is highly dependent on the interplay of their surface chemical groups with water and water

Negative Cooperativity upon Hydrogen Bond-Stabilized O 2 Adsorption in a Redox-Active Metal-Organic Framework

June 18, 2020
Author(s)
Julia Oktawiec, Henry Z. H. Jiang, Jenny G. Vitillo, Douglas A. Reed, Lucy E. Darago, Benjamin Trump, Varinia Bernales, Harriet Li, Kristen A. Colwell, Hiroyasu Furukawa, Craig Brown, Laura Gagliardi, Jeffrey R. Long
The design of stable adsorbents capable of selectively capturing dioxygen with a high reversible capacity is a crucial goal in functional materials development. Drawing inspiration from biological O 2 carriers, we demonstrate that coupling metal-based

Differentiation between Strain and Charge Mediated Magnetoelectric Coupling in La 0.7 Sr 0.3 MnO 3 /Pb(Mg 1/3 Nb 2/3) d0.7^Ti 0.3 O 3 (001)

June 17, 2020
Author(s)
T. Bhatnagar-Schoffmann, Emmanuel Kentzinger, A. Sarkar, P. Schoffmann, Q. Lan, L. Jin, A. Kovacs, Alexander Grutter, Brian Kirby, R. Beerwerth, M. Waschk, Annika Stellhorn, U. Rucker, R. E. Dunin-Borkowski, Th. Bruckel
Magnetoelectric (ME) coupling in La 0.7Sr 0.3MnO 3/Pb(Mg 1/3Nb 2/3)d0.7^Ti 0.3O 3 (LSMO/PMN-PT (001)) has been probed in the past years to identify the underlying mechanism behind it. PMN-PT, which is well known for its excellent piezoelectric properties

Manipulation of Coupling and Magnon Transport in Magnetic Metal-Insulator Hybrid Structures

June 15, 2020
Author(s)
Yabin Fan, Patrick Quarterman, Joseph Finley, Jiahao Han, Pengxiang Zhang, Justin T. Hou, Mark D. Stiles, Alexander Grutter, Luqiao Liu
Ferromagnetic metals and insulators are widely used for generation, control and detection of magnon spin signals. Most magnonic structures are based primarily on either magnetic insulators or ferromagnetic metals, while heterostructures integrating both of

Color, Structure, and Rheology of a Diblock Bottlebrush Copolymer Solution

June 7, 2020
Author(s)
Matthew A. Wade, Dylan Walsh, Johnny Ching-Wei Lee, Elizabeth Kelley, Kathleen Weigandt, Damien Guironnet, Simon A. Rogers
A structure-property-process relation is established for a diblock bottlebrush copolymer solution, through a combination of rheo-neutron scattering, imaging, and rheological measurements. Polylactic acid-b-polystyrene diblock bottlebrush copolymers were

Sub-Millisecond Time-Resolved Small-Angle Neutron Scattering Measurements at NIST

June 3, 2020
Author(s)
Charles J. Glinka, Markus NMN Bleuel, Peter NMN Tsai, Dominika Zakutna, Dirk Honecker, Dominique Dresen, Flore Mees, Sabrina Disch
Instrumentation for sub-millisecond time-resolved SANS measurements at the National Institute of Standards and Technology (NIST) is described and applied to the reorientation dynamics of elongated hematite nanoparticles. Instrumentation for time-resolved

High-throughput Density Functional Perturbation Theory and Machine Learning Predictions of Infrared, Piezoelectric and Dielectric Responses

May 27, 2020
Author(s)
Kamal Choudhary, Kevin F. Garrity, Vinit Sharma, Adam J. Biacchi, Francesca M. Tavazza, Angela R. Hight Walker
In this work, combining high-throughput (HT) density functional perturbation theory and supervised machine learning approaches, we explored the territory of compounds with interesting infrared, piezoelectric and dielectric properties. We have computed Γ

Embracing Uncertainty: Modeling Uncertainty in EPMA - Part I

May 21, 2020
Author(s)
Nicholas Ritchie
This is the first in a series of articles which present a new framework for computing the uncertainty in electron excited X-ray microanalysis measurements. This article will discuss the framework and apply it to a handful of simple but useful sub

Quantifying Strain via Buckling Instabilities in Surface Modified Polymer Brushes

May 21, 2020
Author(s)
Cassandra M. Reese, Wei Guo, Brittany J. Thompson, Phillip K. Logan, Christopher Stafford, Derek L. Patton
We present a quantitative method of measuring the compressive strain of wrinkled polymer films and coatings with knowledge of the "skin" thickness, wrinkle wavelength, and wrinkle amplitude. The derived analytical expression is validated with a well
Displaying 551 - 575 of 2122