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Search Publications

NIST Authors in Bold

Displaying 1 - 25 of 1729

Salts as additives: A route to improve performance and stability of n-type organic electrochemical transistors

March 9, 2023
David Ohayon, Lucas Flagg, Andrea Giugni, Shofarul Wustoni, Ruipeng Li, Tania Hidalgo, Abdul Hamid Emwas, Rajendar Sheelamanthula, Iain McCulloch, Lee J. Richter, Sahika Inal
Organic electrochemical transistors (OECTs) are becoming increasingly ubiquitous in a wide variety of applications at the interface with biological systems, including biosensing, neuromorphic computing, and logic circuits. The widespread use of these

Resolving Complex Photoconductivity of Perovskite and Organic Semiconductor Films Using Phase-Sensitive Microwave Interferometry

March 2, 2023
Jasleen Bindra, Pragya Shrestha, Sebastian Engmann, Chad Cruz, Lea Nienhaus, Emily Bittle, Jason Campbell
Complex transient photoconductivity (Δσ) contains rich fingerprints of charge recombination dynamics in photoactive films. However, a direct measure of both real (Δσ′) and imaginary (Δσ″) components has proven difficult using conventional cavity-based time

Control of Micro-and Nanostructure of Layered Double Hydroxides by Hydrothermal Treatment

February 23, 2023
Keiichiro Maegawa, Fan Zhang, Qiaxian Johnson, Mihaela Jitianu, Tan Wai Kian, Go Kawamura, Atsunori Matsuda, Andrei Jitianu
Layered double hydroxides (LDHs) are mixed M(II) and M(III) hydroxides with positively charged lamellar brucite layers and interlayered anions. LDHs attracted significant attention due to their anion and cation-exchange ability, adsorption capacity, and


February 7, 2023
Vladimir Diky, Rich Elliott
Methods are presented in this chapter foremost for estimating the volumetric behavior of pure gases and liquids as a function of temperature and pressure. Relationships between P, V, and T are formally known as equations of state (EOSs).


February 7, 2023
Rich Elliott, Vladimir Diky
Methods are presented in this chapter to estimate the volumetric, enthalpic, and entropic properties and their derivatives for mixtures of gases and liquids as a function of temperature, pressure, and composition as expressed in mole, mass, or volume


February 7, 2023
Vladimir Diky, Rich Elliott
Vapor liquid equilibrium (VLE) in mixtures is strongly influenced by the vapor pressures of the pure components, especially when one compound is highly concentrated. This means that the bubble pressure is relatively insensitive to infinite dilution

Properties of Gases and Liquids. Chapter 3. Pure-component constants

February 7, 2023
Vladimir Diky, Thomas Knotts, Vincent Wilding, Rich Elliott
The properties of pure components are important for all aspects of process design and optimization. Pure-component properties also underlie much of the observed behavior of mixtures. For example, property models intended for the whole range of composition

Sustainable Additive Manufacturing of Polyelectrolyte Photopolymer Complexes

January 29, 2023
Thomas Kolibaba, Jason Killgore, Callie Higgins
Polyelectrolyte complexes (PECs), assemblies of oppositely charged polymers with powerful properties and wide-ranging applications, are currently not melt-processable via any conventional means and have been limited commercially to applications only as

Field-Deployable Devices

January 1, 2023
Thomas P. Forbes, Raychelle Burks
Reductions in instrument size, weight, and power continue to facilitate the development and application of field-deployable devices for investigative purposes. Portable analytical instrumentation supporting the rapid and reliable identification of two

An Overview of Ukrainian Thermophysics Research (1926 to 2022)

November 8, 2022
Vladimir Diky, Roman Zakusylo, Kostya Trachenko
We provide an overview of Ukrainian thermophysical research, its historical part and current state. The overview is supplemented by a database indexing thermophysical properties for molecular systems and alloys, as well as lists of scientific journals and

Enhanced Atomic Precision Fabrication by Adsorption of Phosphine into Engineered Dangling Bonds on H-Si Using STM and DFT

November 1, 2022
Jonathan Wyrick, Xiqiao Wang, Pradeep Namboodiri, Ranjit Kashid, Fan Fei, Joseph Fox, Richard M. Silver
Doping of Si using the scanning probe technique of hydrogen depassivation lithography has been shown to enable placing and positioning small numbers of P atoms with nanometer accuracy. Several groups have now used this capability to build devices that

Towards the Physical Reliability of 3D-Integrated Systems: Broadband Dielectric Spectroscopic (BDS) Studies of Material Evolution and Reliability in Integrated Systems

September 30, 2022
Papa Amoah, Joseph J. Kopanski, Yaw S. Obeng, Christopher Sunday, Chukwudi Okoro, Lin You, Dmirty Veksler
In this paper, we present an overview of our current research focus in developing non-destructive metrology for monitoring reliability issues in 3D-integrated electronic systems. We introduce a suite of non-destructive metrologies that can serve as early

High-Throughput Nanopore Fabrication and Classification Using Xe-Ion Irradiation and Automated Pore-Edge Analysis

September 26, 2022
Michal Macha, Sanjin Marion, Mukesh Tripathi, Martina Lihter, Alex Smolyanitsky, Andras Kis, Aleksandra Radenovic
Large-area nanopore drilling is a major bottleneck in state-of-the-art nanoporous 2D membrane fabrication protocols. In addition, high-quality structural and statistical descriptions of as-fabricated porous membranes are key to predicting the corresponding

Magnetic Characterization of Electrodeposited Pt1-xNix Alloy Films: Influence of Deposition Potential and the Presence of Boric Acid

September 21, 2022
Eric Rus, Eduardo De Lima Correa, Evan Groopman, Todd Williamson, Hussein Hijazi, Leila Kasaei, Leonard Feldman, Cindi L. Dennis, Thomas P. Moffat
Pt1-xNix (x = 0.25 to 0.92) thin films were examined for possible application as temperature sensing magnetic reporters. The alloys were prepared by charge-limited potentiostatic electrodeposition from aqueous chloride-based solutions in the presence and

Certification of Standard Reference Material(R) 915c Calcium Carbonate

September 20, 2022
Thomas W. Vetter, Jason Waters, Adam L. Pintar
Standard Reference Material (SRM) 915c Calcium Carbonate is certified as a chemical substance of known purity. It is intended for use in the calibration and standardization of procedures for calcium (Ca) determinations employed in clinical analysis and for
Displaying 1 - 25 of 1729