Scott Chambers

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,…

Controlled Doping of TiO2 for Visible Light Photoactivity

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Michael Henderson

Project type

Large-Scale EMSL Research

The ambition of supplementing the nation's energy needs through solar photocatalytic water splitting is a far from being realized with current photocatalytic materials. TiO2-based materials …

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,…

Controlling the Thermal and Non-Thermal Reactivities of Metal Oxide Structures Through Nanoscaling - Controlling Reactivities of Metal Oxide Strcutures(Mike Henderson's BES Project - 43626)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Michael Henderson

Project type

Exploratory Research

The constrained dimensions in nanoscaled materials produces unique chemical properties that will form the basis for important new technologies. A key scientific challenge is to understand how to…

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…

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…

Light Source Photocathode Performance and Development

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Theva Thevuthasan

Accelerator photocathode technology must be advanced to meet the needs of fourth generation light sources. The ultimate output characteristics and cost of next generation UV or X-ray sources, whether…

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 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…

Atomic and electronic structures of interfaces of complex oxides: insight from ab initio calculations

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Petr Sushko

Project type

Exploratory Research

Oxide interfaces, superlattices and solid solutions provide opportunities for generating materials with novel properties. A critical issue is to control the quality of the interfaces and atom…

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…

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…

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…

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,…

MBE Growth and Properties of Model TiO2 Surfaces for Fundamental Studies of Heterogeneous Photocatalysis

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Large-Scale EMSL Research

The overall objective of this project is to provide the field of heterogeneous photocatalysis with unique insights into the molecular-level properties of photocatalytic transformations on TiO2…

Atomic and electronic structures of interfaces of complex oxides

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Petr Sushko

Project type

Large-Scale EMSL Research

Oxide interfaces, superlattices and solid solutions provide opportunities for generating materials with novel properties, providing the atomic structures of the interface and near interface regions…

Photochemical studies on N-doped TiO2 single crystals - Fundamental Investigations of Water Splitting on Model TiO2 (Mike Henderson's BES Project - 48526)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Michael Henderson

Project type

Exploratory Research

This program's overall goals are aimed at the development of new energy sources for the 21st century. Hydrogen has considerable potential as an alternative fuel. Research includes examining the…

MBE Growth and Properties of N-doped TiO2 for Enhanced Visible Light Absorption and Water Splitting

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Large-Scale EMSL Research

Development of new energy sources is a major need for the 21st century. Hydrogen has considerable potential as an alternative fuel. Fujishima and coworkers discovery in 1969 that water could be…

Modeling-Assisted Growth of New Multiferroics in the MTiO3 (M = Fe, Mn, Ni) Family as Epitaxial Thin Films

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Tamas Varga

Materials that simultaneously show electric and magnetic order are currently gaining increasing attention due to the fact that such multiferroics are promising materials for the design of new…

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…

Light Source Photocathode Performance and Development

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Wayne Hess

Project type

Exploratory Research

Accelerator photocathode technology must be advanced to meet the needs of fourth generation light sources. The ultimate output characteristics and cost of next-generation ultraviolet or x-ray…

Photochemical studies on N-doped TiO2 single crystals - Fundamental Investigations of Water Splitting on Model TiO2 (Mike Henderson's BES Project - 48526)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Michael Henderson

Project type

Large-Scale EMSL Research

Development of new energy sources is a major need for the 21st century. Hydrogen has considerable potential as an alternative fuel. The discovery by Fujishima and coworkers in 1969 that water could…

Electronic and Optical Properties of Doped Complex Oxide Epitaxial Films and Interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Large-Scale EMSL Research

The effect of A-cation site and anion-site doping, as well as heteroepitaxial interface formation, on the electronic and optical properties of La-based perovskites will be investigated. Specimens…

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,…

Light Source Photocathode Performance and Development

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Wayne Hess

Accelerator photocathode technology must be advanced to meet the needs of fourth generation light sources. The ultimate output characteristics and cost of next generation UV or X-ray sources, whether…

Expiremental Measurements of the Band Offsets of Epitaxial Silicon on LaAlO3 Single Crystals

Lead Institution

Pennsylvania State University

Principal Investigator

Lisa Edge

Project type

Exploratory Research

The objective of this work is to determine the band offsets of LaAlO3 on silicon. LaAlO3 is a candidate material to replace SiO2 as a high K gate dielectric in CMOS technology. It is predicted that…

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…

High sensitivity atomic absorption flux sensing and control for next-generation oxide molecular beam epitaxy in EMSL

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Scientific Partner

Next-generation atomic absorption based technology will be developed as a real-time atomic beam flux sensor to allow in-situ monitoring and control in EMSL oxide molecular beam epitaxial growth…

Electronic and optical properties modification of complex oxide epitaxial films and superlattices for efficient light harvesting

Lead Institution

Drexel University

Principal Investigator

Steven May

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 ab initio simulations with the…

MBE Growth and Properties of Model TiO2 Anatase Surfaces for Fundamental Studies of Heterogeneous Photocatalysis

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Large-Scale EMSL Research

The overall objective of this work is to provide the field of heterogeneous photocatalysis with unique insights into the molecular-level properties of photocatalytic transformations on TiO2 anatase…

Improving magnetoelectric coupling in novel single-phase multiferroic thin films of the MTiO3
(M = Fe, Mn, Ni, …) family

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Tamas Varga

Multiferroics exhibit simultaneous electric and magnetic order. They are receiving increasing attention due to the fact that they show promise for the design of new multifunctional devices where…

MBE Growth and Properties of Epitaxial C-doped TiO2 for Visible Light Harvesting and Water Splitting

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Large-Scale EMSL Research

Development of new energy sources is a major need for the 21st century. Hydrogen has considerable potential as an alternative fuel. Fujishima and coworkers discovery in 1969 that water could be…

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…

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…

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…

Complex Oxide Heteroepitaxial Growth of Novel Electronic and Magnetic Heterostructures

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Large-Scale EMSL Research

Complex oxide heteroepitaxial growth of pure and magnetically doped perovskite films will be studied with the dual goals of: (i) enhancing understanding of the details of the growth process, and, (ii…

Improving magnetoelectric coupling in novel single-phase multiferroic thin films of the MTiO3
(M = Fe, Mn, Ni, …) family

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Tamas Varga

Multiferroics exhibit simultaneous electric and magnetic order. They are receiving increasing attention due to the fact that they show promise for the design of new multifunctional devices where…

Projects