Department of Chemistry
Harry and Catherine Jaynne Boand Endowed Professor of Chemistry
Ph.D. Stanford University, 1998
(Physical Inorganic Chemistry)
(206) 685-0901
Email: gamelin@chem.washington.edu
Gamelin group website
Research in the Gamelin group combines the use of synthetic, spectroscopic, and magnetic experiments to advance the development of new multifunctional inorganic materials. This research has components of inorganic, physical, and materials chemistries as well as nanoscience and technology.
A central research theme is the discovery and study of materials that combine conductivity with room-temperature ferromagnetism, materials currently of interest in the area of spin-based electronics. This research addresses new materials development, basic aspects of crystal nucleation and growth, long-range magnetic ordering, and microscopic spintronics-relevant physical properties (e.g. giant Zeeman splittings and exchange energies). Images of some transition-metal-doped ZnO quantum dots are shown below.
The Gamelin group's research emphasizes the use of electronic spectroscopic methods as dopant-specific probes. Electronic absorption spectroscopy is used as an analytical technique to understand and improve our synthetic procedures. Electronic absorption, magnetic circular dichroism (MCD), magnetic susceptibility, and electron paramagnetic resonance (EPR) techniques are used to characterize the optical, magnetic, and magneto-optical properties of these materials. Some representative MCD, absorption, and magnetic data are shown here.
This interdisciplinary approach allows relationships between synthesis, electronic structure, magnetism, and other physical properties to be explored. Additional research interests include exploration of the photophysical, photochemical, and photoelectronic properties of these and related materials.
For more information, please visit the Gamelin Group website
"Direct Kinetic Correlation of Carriers and Ferromagnetism in Co2+:ZnO." K. R. Kittilstved, D. A. Schwartz, A. C. Tuan, S. M. Heald, S. A. Chambers, D. R. Gamelin, Phys. Rev. Lett., 2006, 97, 037203.
"Stable Photogenerated Carriers in Magnetic Semiconductor Nanocrystals." W. K. Liu, K. M. Whitaker, K. R. Kittilstved, D. R. Gamelin, J. Am. Chem. Soc., 2006, 128, 3910-3911.
"Electronic Structure Origins of Polarity Dependent High-Tc Ferromagnetism in Oxide Diluted Magnetic Semiconductors." K. R. Kittilstved, W. K. Liu, D. R. Gamelin, Nature Materials, 2006, 5, 291-297.
"Spectroscopy of Photovoltaic and Photoconductive Nanocrystalline Co2+-doped ZnO Electrodes." W. K. Liu, G. M. Salley, D. R. Gamelin, J. Phys. Chem. B, 2005, 109, 14486-14495.
"Doped Semiconductor Nanocrystals: Synthesis, Characterization, Physical Properties, and Applications." J. D. Bryan, D. R. Gamelin, Prog. Inorg. Chem., 2005, 54, 47-126. (Review)
"Synthesis of Colloidal Mn2+:ZnO Quantum Dots and High-TC Ferromagnetic Nanocrystalline Thin Films." N. S. Norberg, K. R. Kittilstved, J. E. Amonette, R. K. Kukkadapu, D. A. Schwartz, D. R. Gamelin, J. Am. Chem. Soc., 2004, 126, 9387-9398.
"Magnetic Quantum Dots: Synthesis, Spectroscopy, and Magnetism of Co2+- and Ni22+-Doped ZnO Nanocrystals." D. A. Schwartz, N. S. Norberg, Q. P. Nguyen, J. M. Parker, D. R. Gamelin, J. Am. Chem. Soc., 2003, 125, 13205-13218.
Please visit the Gamelin Group's website.
2006 Alfred P. Sloan Research Fellowship, Sloan Foundation
2005 Camille Dreyfus Teacher-Scholar Award, Dreyfus Foundation
2005 Dow Lecturer in Inorganic Chemistry, Caltech
2003 Presidential Early Career Award for Scientists and Engineers (PECASE)
2003 Cottrell Scholar Award, Research Corporation
2003 Faculty Early Career Development Award (CAREER) National Science Foundation
2002 Research Innovation Award (Research Corporation)
Please visit the Gamelin Group's website.