Tiffany Kaspar

Elucidating chemical and structural changes of materials in extreme environments

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kayla Yano

Project type

Contracted Time

This proposal aims to elucidate atomic- to nanoscale fundamental mechanisms driving the evolution of materials in the extreme environments of energy production. Energy generating systems often…

Characterizing the structural and chemical evolution of materials exposed to extreme environments

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kayla Yano

The objective of this proposal is to illuminate atomic- to nanoscale mechanisms driving the fundamental evolution of materials in extreme environments relevant to energy production. Energy generating…

Site Specific Valence Above and Below the Verwey Transition in Magnetite

Lead Institution

Argonne National Laboratory

Principal Investigator

Julie Cross

Project type

Exploratory Research

ABSTRACT: The Verwey transition has historically been described as an electron-ordering transition in a mixed-valent system that results in ordering of the formal valence states in the low…

Tuning the electronic and optical properties of complex oxide epitaxial films and superlattices for efficient visible light harvesting

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Large-Scale EMSL Research

We propose an aggressive program of epitaxial film synthesis, detailed and definitive materials characterization, optical and electronic properties measurements, and carefully coordinated ab initio…

Fundamental Structure-Property Relationships Governing the Electrochemical Activity of Epitaxial Heterostructures

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Complex oxides have the widest range of properties of any class of materials explored to date. However, with many degrees of freedom come many possible outcomes. Consequently, controlled synthesis of…

Epitaxial Growth and Properties of Magnetically Doped ZnO Prepared by Pulsed Laser Deposition of Nanoparticle Targets

Lead Institution

University of Washington

Principal Investigator

Daniel Gamelin

Project type

Large-Scale EMSL Research

Semiconductor spintronics has the potential to create entirely new paradigms for analog and digital electronics which may have a significant impact on energy consumption and efficiency. However, in…

Development of new high-temperature piezoelectric materials for in-core diagnostics and prognostics

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Tiffany Kaspar

We will develop new high-temperature sensor materials with adequate radiation damage resistance to acquire local diagnostic data in extreme environments. Improved capabilities for measuring…

Deposition of Metal-Doped Oxides for Spintronic Applications

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Tiffany Kaspar

Project type

Exploratory Research

For spintronic devices such as spin-FETs, efficient injection of spin-polarized electrons into a semiconductor material is necessary. For devices compatible with current semiconductor technology,…

Spin Electronic Phenomena in Magnetically Doped Perovskites and Complex Oxide Interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Large-Scale EMSL Research

Semiconductor spintronics has the potential to create entirely new paradigms for analog and digital electronics which may have a significant impact on energy consumption and efficiency. However,…

Using Corroded Ancient Glasses as a Means to an Improved Understanding of the Long-term Chemical Reactivity of Glasses

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Joseph Ryan

EMSL resources are requested to enable an international team of collaborators to solve fundamental problems in interfacial glass corrosion chemistry. With the recent dismissal of Yucca Mountain as a…

Determining Mechanisms of Nonlinear Photo Response and Transport Properties in Scintillating Materials

Lead Institution

Oak Ridge National Laboratory

Principal Investigator

Yanwen Zhang

The objective of this proposed work is to develop fundamental understanding on photo response and charge carrier transport properties in advanced scintillating materials: (1) light output as a…

Advancing Materials for Quantum Information Science: CVD Growth and Functionalization of Graphene with Ordered Arrays of Nanodiamonds

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Marvin Warner

Quantum information science is an up and coming area of research aimed to transform computing capabilities in the future. The use of quantum bits, or qubits, in place of traditional bits is predicted…

Molecular Beam Epitaxy Growth of Barium Strotium Titanate

Lead Institution

Idaho National Laboratory

Principal Investigator

James (Bill) Rogers

Project type

Exploratory Research

Use molecular beam epitaxy for the deposition of barium strontium titanate thin films. Deposition on Pt substrates will allow formation of capacitor structures for measurement of electrical…

Combined Surface Characterization and Computation Study of a LaxZryOz Catalyst for the Catalytic Upgrading of Biomass-derived Compounds into Biofuels and Renewable Chemicals

Lead Institution

Archer Daniels Midland Company

Principal Investigator

Karl Albrecht

Catalytic upgrading of biomass is a challenging task in part because of the presence of water. Many conventional catalysts were developed for petroleum-based feedstocks. Often these catalysts are…

Material Interface Optimization in ETA-Photovoltaics

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Timothy Droubay

Project type

Exploratory Research

This project aims to provide a fundamental scientific foundation to understand the charge transport in novel oxide-based solar cells, and to tailor the transport by doping and/or interface…

Epitaxial oxide/oxide and oxide/semiconductor heterostructures for water electrolysis

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Large-Scale EMSL Research

This proposal focuses on the design, fabrication and evaluation of structurally and compositionally well-defined complex oxide heterostructures that can facilitate the harvesting of visible sunlight,…

ETA-Photovoltaics materials Interface optimization

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Timothy Droubay

Project type

Large-Scale EMSL Research

We will provide a fundamental scientific foundation to understand the charge transport in novel oxide-based solar cells, and to tailor the transport by doping and/or interface modification of the…

Advancing Materials for Quantum Information Science: CVD Growth and Functionalization of Graphene with Ordered Arrays of Nanodiamonds

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Marvin Warner

Quantum information science is an up and coming area of research aimed to transform computing capabilities in the future. The use of quantum bits, or qubits, in place of traditional bits is predicted…

Epitaxial and Nanoscale Fe-doped TiO2 and Ti-doped alpha-Fe2O3 - Magnetic, Electronic and Photochemical Properties Modification via Selective Doping

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Large-Scale EMSL Research

The wide-ranging properties of transition metal oxides can in principle be expanded even further through selective doping. We propose to investigate the effect of doping TiO2 and alpha-Fe2O3 with…

Thin film deposition for oxygen ionic conduction layer of solid oxide fuel cell by pulsed-laser deposition (PLD) technique

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Hardy

In order to prevent the unwanted chemical reactions of conventional yttrium stabilized zirconia (YSZ) electrolytes of solid oxide fuel cells (SOFCs) with lanthanum strontium cobalt ferrite (LSCF)…

Exploring the Radiation Damage Resistance of Nanoscale Interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Richard Kurtz

Project type

Exploratory Research

The objective of this research is to rigorously test the hypothesis that internal interfaces can be manipulated at the nanoscale to enhance recombination of radiation-produced defects to dramatically…

Model epitaxial heterostructures for water electrolysis

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

This proposal focuses on the design, fabrication and evaluation of structurally and compositionally well-defined complex oxide heterostructures that can facilitate the harvesting of visible sunlight,…

Exploring the Radiation Damage Resistance of Nanoscale Interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Richard Kurtz

Project type

Exploratory Research

The objective of this research is to rigorously test the hypothesis that internal interfaces can be manipulated at the nanoscale to enhance recombination of radiation-produced defects to dramatically…

Fundamental Structure-Property Relationships Governing the Electrochemical Activity of Epitaxial Heterostructures

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Complex oxides have the widest range of properties of any class of materials explored to date. However, with many degrees of freedom come many possible outcomes. Consequently, controlled synthesis of…

Effect of Structure and Impurities on Charge Transfer Reactions in Solid State Electrochemical Devices

Lead Institution

Boston University

Principal Investigator

Srikanth Gopalan

Project type

Exploratory Research

We are investigating epitaxial thin films of SOFC cathodes on single crystal substrates and polycrystalline thin films on yttria doped zirconia substrates. The goal is to use these films to perform…

Microstructural Evolution under Shear Deformation

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Arun Devaraj

Solid phase processing (SPP) of alloys using shear-deformation results in nanoscale metastable phases and enhanced mechanical properties. High-speed mass and energy transfer during such process makes…

Exploring the Radiation Damage Resistance of Nanoscale Interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Richard Kurtz

Project type

Exploratory Research

The objective of this research is to rigorously test the hypothesis that internal interfaces can be manipulated at the nanoscale to enhance recombination of radiation-produced defects to dramatically…

Resolving the structural and chemical evolution in materials exposed to extreme environments at the nano-scale

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Sandra Taylor

The objective of this work is to elucidate atomic- to nano-scale mechanisms driving the evolution of materials in extreme environments, relevant to energy applications. Current understanding of the…

Unraveling Oxygen Reduction Reaction at Solid Oxide Fuel Cell Cathodes

Lead Institution

Boston University

Principal Investigator

Srikanth Gopalan

Project type

Exploratory Research

We seek to uncover the role of the structure and chemistry of the surfaces of solid oxide fuel cell cathodes in the oxygen reduction reaction. In particular we seek to understand the relationship of…

Resolving the structural and chemical evolution in materials exposed to extreme environments at the nano-scale

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Karen Kruska

The objective of this proposal is to elucidate atomic- to nanoscale mechanisms driving the evolution of materials in extreme environments relevant to energy applications. In energy generating systems…

Photoresponse, electronic transport and magnetic properties of Ti-doped alpha-(CrxFe1-x)2O3

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

The nucleation, growth and properties Ti-doped alpha-(CrxFe1-x)2O3 epitaxial films, prepared by oxygen assisted molecular beam epitaxy, will be explored in detail. Our goal is to understand the…

Fundamental Structure-Property Relationships Governing the Electrochemical Activity of Epitaxial Heterostructures

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Complex oxides have the widest range of properties of any class of materials explored to date. However, with many degrees of freedom come many possible outcomes. Consequently, controlled synthesis of…

Deposition of Cobalt-doped Oxides for Spintronic Applications

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Tiffany Kaspar

Project type

Capability Research

The mechanism of magnetism in novel oxide-based dilute ferromagnetic semiconductors is not understood. Knowing the nature and relative position of the magnetic species in the material can help…

The Effects of Radiation Damage on Heteroepitaxial Interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Richard Kurtz

The interaction of radiation with materials controls the performance, reliability, and safety of conventional and advanced nuclear power systems. Energetic particles produced by nuclear reactions…

Non-destructive Evaluation of LiAlO2 Pore Structure and Microstructure

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Tiffany Kaspar

Tritium (3H) is a strategically important isotope of hydrogen. In the U.S. Tritium Sustainment Program (operated by DOE National Nuclear Security Administration (NNSA)), tritium is generated through…

Epitaxial Growth and Properties of Candidate Diluted Magnetic Oxide Semiconductors - Chemistry and Physics of Ceramic Surfaces (Scott Chambers' BES Project - 10122)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Exploratory Research

We propose to grow and characterize by MBE, MOCVD, and PLD doped transition metal oxide epitaxial films to assess suitability for potential use in spin electronics. We will use RHEED and XPS (in…

The effects of doping and chemical ordering on the optical, electronic and photochemical properties of alpha-(Fe,Cr,V)2O3 epitaxial films and interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

We propose to modify hematite - an abundant, naturally occurring mineral with some potential as a highly efficient photovoltaic and photocatalytic material - by doping with other transition metals…

Resolving the structural and chemical evolution in materials exposed to extreme environments at the nano-scale

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Karen Kruska

The objective of this proposal is to elucidate atomic- to nanoscale mechanisms driving the evolution of materials in extreme environments relevant to energy applications. In energy generating systems…

Projects