Daniel Gamelin

Spectroscopy and microscopy of doped TiO2 nanocrystalline materials

Lead Institution

University of Washington

Principal Investigator

Daniel Gamelin

Project type

Exploratory Research

We propose to synthesize and characterize by XRD, TEM, and possibly EPR spectroscopy a series of nanocrystalline ferromagnetic oxide semiconductor materials of direct relevance to spintronics…

Photochemistry of a Diluted Magnetic Semiconductor Quantum Dot: A Possible Photocatalyst for Water-Splitting

Lead Institution

University of Washington

Principal Investigator

Kevin Kittilstved

Project type

Exploratory Research

Nanoscale catalysts have attracted much attention due to their high surface area to volume ratios. Photocatalytic water-splitting materials are likewise a subject of intense research, as attention…

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…

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…

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…

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…

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,…

Physical Characterization of Defects in ZnO Diluted Magnetic Semiconductors

Lead Institution

University of Washington

Principal Investigator

Kevin Kittilstved

Project type

Exploratory Research

We have recently reported above-room-temperature ferromagnetism in Mn2+-, Co2+, and Ni2+-doped ZnO nanocrystalline aggregates and thin films using high-quality colloids as solution precursors. The…

Preparation of ZnO thin films by MOCVD

Lead Institution

University of Washington

Principal Investigator

Daniel Gamelin

Project type

Exploratory Research

This research is aimed at manipulating the carriers in oxide based diluted magnetic semiconductors by adsorbing and decomposing small molecules on their surfaces. This chemical manipulation however…

Study of the ferromagnetic activation in ZnO diluted magnetic semiconductors

Lead Institution

University of Washington

Principal Investigator

Daniel Gamelin

Project type

Exploratory Research

We wish to study the in situ activation of ferromagnetic ordering in Mn2+:ZnO using vibrating sample magnetometry. We have previously shown that decomposition of amines activated ferromagnetism, but…

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…

Spectroscopy and microscopy of doped TiO2 nanocrystalline materials

Lead Institution

University of Washington

Principal Investigator

Daniel Gamelin

Project type

Exploratory Research

We propose to synthesize and characterize by XRD, TEM, and possibly EPR spectroscopy a series of nanocrystalline ferromagnetic oxide semiconductor materials of direct relevance to spintronics…

EMSL Science Overview

Daniel Gamelin

Projects

Spectroscopy and microscopy of doped TiO2 nanocrystalline materials

Photochemistry of a Diluted Magnetic Semiconductor Quantum Dot: A Possible Photocatalyst for Water-Splitting

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

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

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

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

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

Physical Characterization of Defects in ZnO Diluted Magnetic Semiconductors

Preparation of ZnO thin films by MOCVD

Study of the ferromagnetic activation in ZnO diluted magnetic semiconductors

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

Spectroscopy and microscopy of doped TiO2 nanocrystalline materials