PUBLICATIONS

2009

Lee, H. J.; Chen, P.; Moon, S.-J.; Sivula, K.; Besso, T.; Gamelin D. R.; Comte,P.; Zakeeruddin, S. M.; Grätzel, M.; Nazeeruddin, Md. K.,"Regenerative PbS and CdS Quantum Dot-Sensitized Solar Cells with a Cobalt Complex as a Hole Mediator." Langmuir , 2009 , 25 , 7602–7608.

Ochsenbein, S. T.; Feng, Y.; Whitaker, K. M.; Badaeva, E.; Liu, W. K.; Li, X.; Gamelin, D. R. “Charge-Controlled Magnetism in Colloidal Doped Semiconductor Nanocrystals.” Nat. Nanotechnol. , 2009 , 4, 681-687.

Vlaskin, V., Beaulac, R., Gamelin, D. R. “Dopant-carrier magnetic exchange coupling in colloidal inverted core/shell semiconductor nanocrystals.” Nano Lett. , 2009 , (published ASAP, DOI 10.1021/nl9026499.)

Beaulac, R., Scheider, L., Archer, P. I., Bacher, G., Gamelin, D. R. “Light-induced spontaneous magnetization in doped colloidal quantum dots.” Science , 2009 , 325, 973-976.

Zhong, D. K.; Sun, J. ; Gamelin, D. R. "Solar Water Oxidation by Composite Catalyst/a-Fe₂O₃ Photoanodes." J. Am. Chem. Soc., 2009, 131, 6086-6087.

Badaeva, E.; Isborn, C. M.; Feng, Y.; Ochsenbein, S. T.; Gamelin, D. R.; Li, X. "Theoretical Characterization of Electronic Transitions in Co²⁺- and Mn²⁺-Doped ZnO Nanocrystals." J. Phys. Chem. C, 2009, published ASAP.

Droubay, T. C.; Keavney, D. J.; Kaspar, T. C.; Heald, S. M.; Wang, C. M.; Johnson, C. A.; Whitaker, K. M.; Gamelin, D. R.; Chambers, S. A. "Correlated Substitution in Paramagnetic Mn²⁺-Doped ZnO Epitaxial Films." Phys. Rev. B, 2009, 79, 155203.

2008

White, M. A.; Ochsenbein, S. T.; Gamelin, D. R. "Colloidal Nanocrystals of Wurtzite Zn_1-xCo_xO (0 = x = 1): Models of Spinodal Decomposition in an Oxide Diluted Magnetic Semiconductor." Chem. Mater., 2008, 20, 7107-7116.

Beaulac, R.; Archer, P. I.; Ochsenbein, S. T.; Gamelin, D. R. "Mn²⁺-Doped CdSe Quantum Dots: New Inorganic Materials for Spin-Electronics and Spin-Photonics." Advanced Functional Materials, 2008, 18, 3873-3891 (Feature Article).

Beaulac, R.; Archer, P. I.; van Rijssel, J.; Meijerink, A.; Gamelin, D. R. "Exciton Storage by Mn²⁺ in Colloidal Mn²⁺-Doped CdSe Quantum Dots." Nano Letters, 2008, 8, 2949-2953.

Whitaker, K. M.; Ochsenbein, S. T.; Polinger, V. Z.; Gamelin, D. R. "Electron Confinement Effects in the EPR Spectra of Colloidal n-Type ZnO Quantum Dots." J. Phys. Chem. C, 2008, 112, 14331-14335.

Thomay, T.; Hanke, T.; Tomas, M.; Sotier, F.; Beha, K.; Knittel, V.; Kahl, M.; Whitaker, K. M.; Gamelin, D. R.; Leitenstorfer, A.; Bratschitsch, R. "Colloidal ZnO Quantum Dots in Ultraviolet Pillar Microcavities." Optics Express, 2008, 16, 9791-9794.

Janssen, N.; Whitaker, K. M.; Gamelin, D. R.; Bratschitsch, R. "Ultrafast Spin Dynamics in Colloidal ZnO Quantum Dots." Nano Letters, 2008, 8, 1991-1994.

Beaulac, R.; Archer, P. I.; Gamelin, D. R."Luminescence in Colloidal Mn²⁺-Doped Semiconductor Nanocrystals." J. Solid State Chem. 2008, 181, 1585-1592.

Beaulac, R.; Archer, P. I.; Liu, X.; Lee, S.; Salley, G. M.; Dobrowolska, M. ; Furdyna, J. K.; Gamelin, D. R. "Spin Polarizable Excitonic Luminescence in Colloidal Mn²⁺-Doped CdSe Quantum Dots." Nano Letters, 2008, 8, 1197-1201.

Badaeva, E.; Feng, Y.; Gamelin, D. R.; Li, X. "Investigation of Pure and Co²⁺-Doped ZnO Quantum Dot Electronic Structures using Density Functional Theory: Choosing the Right Functional." New Journal of Physics, 2008, 10, 055013.

Kaspar, T. C.; Droubay, T.; Li, Y.; Heald, S. M.; Nachimuthu, P.; Wang, C. M.; Shutthanandan, V.; Johnson, C. A.; Gamelin, D. R.; Chambers, S. A. "Lack of Ferromagnetism in n-Type Cobalt-Doped ZnO Epitaxial Thin Films." New Journal of Physics, 2008, 10, 055010.

2007

Archer, P. I.; Santangelo, S. A.; Gamelin, D. R. "Inorganic Cluster Syntheses of TM²⁺-Doped Quantum Dots (CdSe, CdS, CdSe/CdS): Physical Property Dependence on Dopant Locale." J. Am. Chem. Soc., 2007, 129, 9808-9818.

Liu, W. K.; Whitaker, K. M.; Smith, A. L.; Kittilstved, K. R.; Robinson, B. H.; Gamelin, D. R. "Room-Temperature Electron Spin Dynamics in Free-Standing ZnO Quantum Dots." Phys. Rev. Lett., 2007, 98, 186804.

Archer, P. I.; Santangelo, S. A.; Gamelin, D. R. "Direct Observation of sp-d Exchange Interactions in Colloidal Mn²⁺- and Co²⁺-Doped CdSe Quantum Dots." Nano Letters, 2007, 7, 1037-1043.

Santangelo, S. A.; Hinds, E. A.; Vlaskin, V. A.; Archer, P. I.; Gamelin, D. R. "Bimodal Bond-Length Distributions in Cobalt-Doped CdSe, ZnSe, and Cd_1-xZn_xSe Quantum Dots." J. Am. Chem. Soc., 2007, 129, 3973-3978.

Chambers, S. A.; Schwartz, D. A.; Liu, W. K.; Kittilstved, K. R.; Gamelin, D. R. " Growth, Electronic and Magnetic Properties of Doped ZnO Epitaxial and Nanocrystalline Films. " Applied Physics A, 2007, 88, 1-5. (Invited Paper)

Archer, P. I.; Gamelin, D. R. "Chemical Approaches using Nanocrystals to Control Lattice Defect Formation and Explore the High- T_C Ferromagnetism of Oxide Diluted Magnetic Semiconductors." Chapter in Magnetism in New Semiconducting and Insulating Oxides , edited by N. H. Hong, 2007, Research Signpost Press. (Invited Review)

2006

Norberg, N. S.; Dalpian, G. M.; Chelikowsky, J. R.; Gamelin, D. R. "Energetic Pinning of Magnetic Impurity Levels in Quantum Confined Semiconductor Nanocrystals." Nano Letters, 2006, 6, 2887-2892.

Chambers, S. A.; Droubay, T. C.; Wang, C. M.; Rosso, K.; Heald, S. M.; Schwartz, D. A.; Kittilstved, K. R.; Gamelin, D. R. "Electron Mediated Ferromagnetism in Oxide Semiconductors?" Materials Today, 2006, 9, 28-35. (Invited Review)

Norberg, N. S.; Parks, G. L.; Salley, G. M.; Gamelin, D. R. "Giant Excitonic Zeeman Splittings in Colloidal Co²⁺-Doped ZnSe Quantum Dots." J. Am. Chem. Soc., 2006, 128, 13195-13203.

Kittilstved, K. R.; Zhao, J.; Liu, W. K.; Bryan, J. D.; Schwartz, D. A.; Gamelin, D. R. "Magnetic Circular Dichroism of Ferromagnetic Co²⁺-Doped ZnO." Appl. Phys. Lett., 2006, 89, 062510.

Kittilstved, K. R.; Schwartz, D. A.; Tuan, A. C.; Heald, S. M.; Chambers, S. A.; Gamelin, D. R. "Direct Kinetic Correlation of Carriers and Ferromagnetism in Co²⁺:ZnO." Phys. Rev. Lett., 2006, 97, 037203.

Kaspar, T. C.; Droubay, T.; Shutthanandan, V.; Heald, S. M.; Wang, C. M.; McCready, D. E.; Thevuthasan, S.; Bryan, J. D.; Gamelin, D. R.; Kellock, A. J.; Toney, M. F.; Hong, X.; Ahn, C. H.; Chambers, S. A. "Ferromagnetism and Structure of Epitaxial Cr-Doped Anatase TiO₂ Thin Films." Phys. Rev. B, 2006, 73, 155327.

Kittilstved, K. R.; Liu, W. K.; Gamelin, D. R. "Electronic Structure Origins of Polarity Dependent High-T_C Ferromagnetism in Oxide Diluted Magnetic Semiconductors." Nature Materials, 2006, 5, 291-297

Liu, W. K.; Whitaker, K. M.; Kittilstved, K. R.; Gamelin, D. R. "Stable Photogenerated Carriers in Magnetic Semiconductor Nanocrystals ." J. Am. Chem. Soc., 2006, 128, 3910-3911.

Kittilstved, K. R.; Gamelin, D. R. "Manipulating Polar Ferromagnetism in Transition Metal Doped ZnO: Why Manganese is Different from Cobalt." J. Appl. Phys., 2006, 99, 08M112. (Invited Paper)

Archer, P. I.; Gamelin, D. R. "Controlled Grain-Boundary Defect Formation and its Role in the High-T_C Ferromagnetism of Ni²⁺:SnO₂." J. Appl. Phys., 2006, 99, 08M107.

Norberg, N. S.; Gamelin, D. R. "Giant Zeeman Effects in Colloidal Diluted Magnetic Semiconductor Quantum Dots with Homogeneous Dopant Speciation." J. Appl. Phys., 2006, 99, 08M104.

2005

Kaspar, T.C.; Heald, S.M.; Wang, C.M.; Bryan, J. D.; Droubay, T.; Shutthanandan, V.; Thevuthasan, S.; McCready, D.E.; Kellock, A.J.; Gamelin, D. R.; Chambers, S.A. "Negligible Magnetism in Excellent Structural Quality Cr_x:Ti_1-xO₂ Anatase: Contrast with High-T_C Ferromagnetism in Structurally Defective Cr_x:Ti_1-xO₂." Phys. Rev. Lett., 2005, 95, 217203.

Norberg, N. S.; Gamelin, D. R. "Influence of Surface Modification on the Luminescence of Colloidal ZnO Nanocrystals." J. Phys. Chem. B, 2005, 109, 20810-20816.

Bryan, J. D.; Santangelo, S. A.; Keveren, S. C.; Gamelin, D. R. "Activation of High-T_C Ferromagnetism in Co ²⁺:TiO₂ and Cr³⁺:TiO₂ Nanorods and Nanocrystals by Grain Boundary Defects." J. Am. Chem. Soc., 2005, 127, 15568-15574.

Archer, P. I.; Radovanovic, P. V.; Heald, S. M.; Gamelin, D. R. "Low-Temperature Activation and Deactivation of High-T_C Ferromagnetism in a New Diluted Magnetic Semiconductor: Ni²⁺-Doped SnO₂." J. Am. Chem. Soc., 2005, 127, 14479-14487.

Kittilstved, K. R.; Zhao, J.; Liu, W. K.; Bryan, J. D.; Gamelin, D. R. "300K Ferromagnetic Magnetic Circular Dichroism in Co²⁺-Doped ZnO Activated by Shallow Donors." 2005 (arXiv:cond-mat/0507121)

Liu, W. K.; Salley, G. M.; Gamelin, D. R. "Spectroscopy of Photovoltaic and Photoconductive Nanocrystalline Co²⁺-doped ZnO Electrodes." J. Phys. Chem. B, 2005, 109, 14486-14495.

Kittilstved, K. R.; Norberg, N. S.; Gamelin, D. R. "Chemical Manipulation of High-T_C Ferromagnetism in ZnO Diluted Magnetic Semiconductors." Phys. Rev. Lett., 2005, 94, 147209.

Kittilstved, K. R.; Gamelin, D. R. "Activation of High-T_C Ferromagnetism in Mn²⁺:ZnO using Amines." J. Am. Chem. Soc., 2005, 127, 5292-5293.

Bryan, J. D.; Schwartz, D. A.; Gamelin, D. R. "The Influence of Dopants on the Nucleation of Semiconductor Nanocrystals from Homogeneous Solution " J. Nanosci. Nanotech., 2005, 5, 1472-1479. (Invited Paper) (cond-mat/0502079)

Bryan, J. D.; Gamelin, D. R. "Doped Semiconductor Nanocrystals: Synthesis, Characterization, Physical Properties, and Applications" Progress in Inorganic Chemistry, 2005, 54, 47-126. (Invited Review)

2004

Schwartz, D. A.; Gamelin, D. R. "Reversible 300K Ferromagnetic Ordering in a Diluted Magnetic Semiconductor" Advanced Materials, 2004, 16, 2115-2119.

Schwartz, D. A.; Kittilstved, K. R.; Gamelin, D. R. "Above-Room-Temperature Ferromagnetic Ni²⁺:ZnO Thin Films Prepared from Colloidal Diluted Magnetic Semiconductor Quantum Dots" Appl. Phys. Lett., 2004, 85, 1395-1397.

Bryan, J. D.; Heald, S. M.; Chambers, S. A.; Gamelin, D. R. "Strong Room-Temperature Ferromagnetism in Co²⁺-Doped TiO₂ made from Colloidal Nanocrystals" J. Am. Chem. Soc., 2004, 126, 11640-11647.

Tuan, A.; Bryan, J. D.; Pakomov, A.; Shutthanandan, V.; Thevuthasan, S.; McCready, D.; Gaspar, D.; Engelhard, M.; Rogers, Jr., J. W.; Krishnan, K.; Gamelin, D. R.; Chambers S. A.; "Epitaxial Growth and Properties of Cobalt-doped ZnO on a-Al₂O₃ Single Crystal Substrates" Phys. Rev. B, 2004, 70, 054424.

Norberg, N. S.; Kittilstved, K. R.; Amonette, J. E.; Kukkadapu, R. K.; Schwartz, D. A.; Gamelin, D. R. "Synthesis of Colloidal Mn²⁺:ZnO Quantum Dots and High-T_C Ferromagnetic Nanocrystalline Thin Films" J. Am. Chem. Soc., 2004, 126, 9387-9398.

2003

Schwartz, D. A.; Gamelin, D. R. "A Simple Room-Temperature Preparation of Colloidal ZnO Quantum Dots from Homogeneous Polar Aprotic Solutions" Proc. SPIE-Int. Soc. Opt. Eng., 2003, 5224, 1-7. (Invited Paper)

Radovanovic, P. V.; Gamelin, D. R. "High-Temperature Ferromagnetism in Ni²⁺-doped ZnO Aggregates Prepared from Colloidal Diluted Magnetic Semiconductor Quantum Dots" Phys. Rev. Lett., 2003, 91, 157202/1-4.

Schwartz, D. A.; Norberg, N. S.; Nguyen, Q. P.; Parker, J. M.; Gamelin, D. R. "Magnetic Quantum Dots: Synthesis, Spectroscopy, and Magnetism of Co²⁺- and Ni²⁺-Doped ZnO Nanocrystals" J. Am. Chem. Soc., 2003, 125, 13205-13218.

2002

Radovanovic, P. V.; Norberg, N. S.; McNally, K. E.; Gamelin, D. R. "Colloidal Transition-Metal-Doped ZnO Quantum Dots" J. Am. Chem. Soc., 2002, 124, 15192-15193.

Radovanovic, P. V.; Gamelin, D. R. "Isocrystalline Core/Shell Synthesis of High Quality II-VI Diluted Magnetic Semiconductor Quantum Dots: Ligand Field Spectroscopic Studies" Proc. SPIE-Int. Soc. Opt. Eng., 2002, 4807, 223-231.

Radovanovic, P. V.; Gamelin, D. R. "Magnetic Circular Dichroism Spectroscopy of Co²⁺:CdS diluted Magnetic Semiconductor Quantum Dots" Proc. SPIE-Int. Soc. Opt. Eng., 2002, 4809, 51-61.

2001

Radovanovic, P. V.; Gamelin, D. R. "Electronic Absorption Spectroscopy of Cobalt Ions in Diluted Magnetic Semiconductor Quantum Dots: Demonstration of an Isocrystalline Core/Shell Synthetic Method" J. Am. Chem. Soc., 2001, 123, 12207-12214.

2000

Gamelin, D. R.; Güdel, H. U. "Excited-State Dynamics and Sequential Two-Photon Upconversion Excitation of Mo³⁺-Doped Chloro- and Bromo-Elpasolites" J. Phys. Chem. B, 2000, 104, 11045-11057.

Wenger, O. S.; Gamelin, D. R.; Güdel, H. U. "Chemical Manipulation of Ni²⁺ Upconversion through Magnetic Exchange Interactions" J. Am. Chem. Soc., 2000, 122, 7408-7409.

Gamelin, D. R.; Lüthi, S. R.; Güdel, H. U. "The Role of Laser Heating in the Intrinsic Optical Bistability of Yb³⁺-Doped Bromide Lattices" J. Phys. Chem. B, 2000, 104, 10222-10234.

Brunold, T. C.; Gamelin, D. R.; Solomon, E. I. "Excited-State Exchange Coupling in Bent Mn(III)-O-Mn(III) Complexes: Dominance of the p/s Superexchange Pathway and Its Possible Contributions to the Reactivities of Binuclear Metalloproteins" J. Am. Chem. Soc., 2000, 122, 8511-8523.

Gamelin, D. R.; Güdel, H. U. "Upconversion Processes in Transition Metal and Rare Earth Metal Systems" Topics in Current Chemistry, 2000, 214, 1-56.

Wenger, O. S.; Gamelin, D. R.; Güdel, H. U.; Butashin, A. V.; Kaminskii, A. A. "Site-Selective Yellow to Violet and Near-Infrared to Green Upconversion in BaLu₂F₈:Nd³⁺" Phys. Rev. B, 2000, 61, 16530-16537.

Gamelin, D. R.; Güdel, H. U. "Design of Luminescent Inorganic Materials: New Photophysical Processes studied by Optical Spectroscopy" Acct. Chem. Res., 2000, 33, 235-242.

Pollnau, M.; Gamelin, D. R.; Luthi, S. R.; Güdel, H. U.; Hehlen, M. P. "Power Dependence of Upconversion Luminescence in Lanthanide and Transition-Metal-Ion Systems" Phys. Rev. B, 2000, 61, 3337-3346.

Randall, D. W.; Gamelin, D. R.; LaCroix, L. B.; Solomon, E. I. "Electronic Structure Contributions to Electron Transfer in Blue Cu and Cu_A" J. Biol. Inorg. Chem., 2000, 5, 16-29.

1999

Gamelin, D. R.; Wermuth, M.; Güdel, H. U. "Upconversion Processes of 5d Transition Metal Ions in Crystals" J. Lumin., 1999, 83-84, 405-410.

Gamelin, D. R.; Güdel, H. U. "Spectroscopy and Dynamics of Re⁴⁺ Near-IR-to-Visible Luminescence Upconversion" Inorg. Chem., 1999, 38, 5154-5164.

Wenger, O. S.; Gamelin, D. R.; Güdel, H. U.; Butashin, A. V.; Kaminskii, A. A. "Site-Selective Optical Spectroscopy and Upconversion Mechanisms of the Laser Material BaLu₂F₈:Er³⁺" Phys. Rev. B, 1999, 60, 5312-5320.

1998

Gamelin, D. R.; Güdel, H. U. "Two-Photon Spectroscopy of Transition Metals: Near-IR-to-Visible Upconversion Luminescence by Re⁴⁺ and Mo³⁺" J. Am. Chem. Soc., 1998, 120, 12143-12144.

Brunold, T. C.; Gamelin, D. R.; Stemmler, T. L.; Penner-Hahn, J. E.; Armstrong, W. E.; Solomon, E. I. "Spectroscopic Studies of Oxidized Manganese Catalase and m-oxo-bridged Dimanganese(III) Model Complexes: Electronic Structure of the Active Site and its Relation to Catalysis" J. Am. Chem. Soc., 1998, 120, 8724–8738.

Gamelin, D. R.; Randall, D. W.; Hay, M. T.; Houser, R. P.; Mulder, T. C.; Canters, G. W.; de Vries, S.; Tolman, W. B.; Lu, Y.; Solomon, E. I. "Electronic Spectroscopy of Mixed-Valence Cu_A-Type Centers: Ligand-Field Control of Ground-State Properties Related to Electron Transfer" J. Am. Chem. Soc., 1998, 120, 5246–5263.

1997

Hay, M. T.; Ang, M. C.; Gamelin, D. R.; Solomon, E. I.; Antholine, W. E.; Blackburn, N. J.; Massey, P. D.; Kwon, A. H.; Lu, Y. "Spectroscopic Characterization of an Engineered Purple Cu_A Center in Azurin" Inorg. Chem., 1998, 37, 191–198.

Williams, K. R.; Gamelin, D. R.; LaCroix, L. B.; Houser, R. P.; Tolman, W. B.; Mulder, T. C.; de Vries, S.; Hedman, B.; Hodgson, K. O.; Solomon, E. I. "The Influence of Copper-Sulfur Covalency and Copper-Copper Bonding on Valence Delocalization and Electron Transfer in the Cu_A Site of Cytochrome c Oxidase" J. Am. Chem. Soc., 1997, 119, 613–614.

1996

Gamelin, D. R.; Bominaar, E. L.; Kirk, M. L.; Wieghardt, K.; Solomon, E. I. "Excited-State Contributions to Ground-State Properties of Mixed-Valence Dimers: Spectral and Electronic-Structural Studies of [Fe₂(OH)₃(tmtacn)₂]²⁺ Related to the [Fe₂S₂]⁺ Active Sites of Plant-Type Ferredoxins" J. Am. Chem. Soc., 1996, 118, 8085–8097.

Gamelin, D. R.; Bominaar, E. L.; Mathonière, C.; Kirk, M. L.; Wieghardt, K.; Girerd, J.-J.; Solomon, E. I. "Excited-State Distortions and Electron Delocalization in Mixed-Valence Dimers: Vibronic Analysis of the Near-IR Absorption and Resonance Raman Profiles of [Fe₂(OH)₃(tmtacn)₂]²⁺" Inorg. Chem., 1996, 35, 4323–4335.

1995

Solomon, E. I.; Kirk, M. L.; Gamelin, D. R.; Pulver, S. "Bioinorganic Spectroscopy" Methods in Enzymology, 1995, 246, 71–110.

1994

Gamelin, D. R.; Kirk, M. L.; Stemmler, T. L.; Pal, S.; Armstrong, W. H.; Penner-Hahn, J. E.; Solomon, E. I. "Electronic Structure and Spectroscopy of Manganese Catalase and Di-m-oxo [Mn^IIIMn^IV] Model Complexes" J. Am. Chem. Soc., 1994, 116, 2392–2399.

Gamelin, D. R.; George, M. W.; Glyn, P.; Grevels, F.-W.; Johnson, F. P. A.; Klotzbücher, W.; Morrison, S. L.; Russel, G.; Schaffner, K.; Turner, J. J. "Structural Investigation of the Ground and Excited States of ClRe(CO)₃(4,4'-bipyridyl)₂ Using Vibrational Spectroscopy" Inorg. Chem., 1994, 33, 3246–3250.