Gamelin Research Group

Department of Chemistry, University of Washington

Development and Characterization of New Inorganic Materials
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Dr. Kathryn Knowles


Assistant Professor, University of Rochester
The Knowles Group

Education

Awards & Honors

Publications (Gamelin group and pre-Gamelin group only)


2017

Marchioro, A.; Whitham, P. J.; Nelson, H. D.; De Siena, M. C.; Knowles, K. E.; Polinger, V. Z.; Reid, P. J.; Gamelin, D. R. "Strong Dependence of Quantum-Dot Delayed Luminescence on Excitation Pulse Width." J. Phys. Chem. Lett. 2017, 8, 3997-4003. (view)

2016

Marchioro, A.; Whitham, P. J.; Knowles, K. E.; Kilburn, T. B.; Reid, P. J.; Gamelin, D. R. "Tunneling in the Delayed Luminescence of Colloidal CdSe, Cu+-Doped CdSe, and CuInS2 Semiconductor Nanocrystals, and Relationship to Blinking." J. Phys. Chem. C 2016, 120, 27040-27049. (view)

Yang, L.; Knowles, K. E.; Gopalan, A.; Hughes, K. E.; James, M. C.; Gamelin, D. R. "One-Pot Synthesis of Monodisperse Colloidal Copper-Doped CdSe Nanocrystals Mediated by Ligand-Copper Interactions." Chem. Mater. 2016, 28, 7375-7384. (view)

Whitham, P. J.; Marchioro, A.; Knowles, K. E.; Kilburn, T. B.; Reid, P. J.; Gamelin, D. R. "Single-Particle Photoluminescence Spectra, Blinking, and Delayed Luminescence of Colloidal CuInS2 Nanocrystals." J. Phys. Chem. C 2016, 120, 17136-17142. (view)

Knowles, K. E.; Hartstein, K. H.; Kilburn, T. B.; Marchioro, A.; Nelson, H. D.; Whitham, P. J.; Gamelin, D. R. "Luminescent Colloidal Semiconductor Nanocrystals Containing Copper: Synthesis, Photophysics, and Applications." Chem. Rev. 2016, 116, 10820-10851. (view)

2015

Knowles, K. E.; Nelson, H. D.; Kilburn, T. B.; Gamelin, D. R. "Singlet-Triplet Splittings in the Luminescent Excited States of Colloidal Cu+:CdSe, Cu+:InP, and CuInS2 Nanocrystals: Charge-Transfer Configurations and Self-Trapped Excitons." J. Am. Chem. Soc. 2015, 137, 13138-13147. (view)

Schimpf, A. M.; Knowles, K. E.; Carroll, G. M.; Gamelin, D. R. "Electronic Doping and Redox Potential Tuning in Colloidal Semiconductor Nanocrystals." Acc. Chem. Res. 2015, 48, 1929-1937. (view)

Whitham, P. J.; Knowles, K. E.; Reid, P. J.; Gamelin, D. R. "Photoluminescence Blinking and Reversible Electron Trapping in Copper-Doped CdSe Nanocrystals." Nano Lett. 2015. 15. 4045-4051. (view)

Knowles, K. E.; Kilburn, T. B.; Alzate, D. G.; McDowall, S.; Gamelin, D. R. "Bright CuInS2/CdS Nanocrystal Phosphors for High-Gain Full-Spectrum Luminescent Solar Concentrators." Chem. Commun. 2015, 51, 9129-9132. (view)

Bradshaw, L. R.; Knowles, K.; McDowall, S.; Gamelin, D. R. "Nanocrystals for Luminescent Solar Concentrators." Nano Lett. 2015, 15, 1315-1323. (view)

2013

Knowles, K. E.; Tagliazucchi, M.; Malicki, M.; Swenson, N. K.; Weiss, E. A. "Electron Transfer as a Probe of the Permeability of Organic Monolayers on the Surfaces of Colloidal PbS Quantum Dots." J. Phys. Chem. C 2013, 117, 15849-15857.

Knowles, K. E.; Peterson, M. D.; McPhail, M R.; Weiss, E. A. "Exciton Dissociation within Quantum Dot-Organic Complexes: Mechanisms, Use as a Probe of Interfacial Structure, and Applications." J. Phys. Chem. C 2013, 117, 10229-10243.

Knowles, K. E.; Malicki, M.; Parameswaran, R.; Cass, L. C.; Weiss, E. A. "Spontaneous Multi-Electron Transfer from the Surfaces of PbS Quantum Dots to Tetracyanoquinodimethane." J. Am. Chem. Soc. 2013, 135, 7264-7271.

Malicki, M.; Knowles, K. E.; Weiss, E. A. "Gating of Hole Transfer from Photoexcited PbS Quantum Dots to Aminoferrocene by the Ligand Shell of the Dots." Chem. Commun. 2013, 49, 4400-4402.

2012

Knowles, K. E.; Malicki, M.; Weiss, E. A. "Dual-Timescale Photoinduced Electron Transfer from PbS Quantum Dots to a Molecular Acceptor." J. Am. Chem. Soc. 2012, 134, 12470-12473.

Evans, C. M.; Cass, L. C.; Knowles, K. E.; Tice, D. B.; Chang, R. P. H.; Weiss, E. A. "Review of the Synthesis and Properties of Colloidal Quantum Dots: The Evolving Role of Coordinating Surface Ligands." J. Coord. Chem. 2012, 65, 2391-2414.

Knowles, K. E.; Frederick, M. T.; Tice, D. B.; Morris-Cohen, A. J.; Weiss, E. A. "Colloidal Quantum Dots: Think Outside the (Particle-in-a-)Box." J. Phys. Chem. Lett. 2012, 3, 18-26.

2011

Knowles, K. E.; McArthur, E. A.; Weiss, E. A. "A Multi-Timescale Map of Radiative and Nonradiative Decay Pathways for Excitons in CdSe Quantum Dots." ACS Nano 2011, 5, 2026-2035.

Frederick, M. T.; Achtyl, J. A.; Knowles, K. E.; Weiss, E. A.; Geiger, F. M. "Surface-Amplified Ligand Disorder in CdSe Quantum Dots Determined by Electron and Coherent Vibrational Spectroscopies." J. Am. Chem. Soc. 2011, 133, 7476-1481.

2010

Donakowski, M. D.; Godbe, J. M.; Sknepnek, R.; Knowles, K. E.; Olvera de la Cruz, M.; Weiss, E. A. "A Quantitative Description of the Binding Equilibria of para-Substituted Aniline Ligands and CdSe Quantum Dots." J. Phys. Chem. C. 2010, 114, 22526-22534.

McArthur, E. A.; Morris-Cohen, A. J.; Knowles, K. E.; Weiss, E. A. "Charge Carrier Resolved Relaxation of the First Excitonic State in CdSe Quantum Dots Probed with Near-Infrared Transient Absorption Spectroscopy." J. Phys. Chem. B 2010, 114, 14514-14520.

Morris-Cohen, A. J.; Donakowski, M. D.; Knowles, K. E.; Weiss, E. A. "The Effect of a Common Purification Procedure on the Chemical Composition of Surfaces of CdSe Quantum Dots Synthesized with Trioctylphosphine Oxide (TOPO)." J. Phys. Chem. C 2010, 114, 897-906.

Knowles, K. E.; Tice, D. B.; McArthur, E. A.; Solomon, G. C.; Weiss, E. A. "Chemical Control of the Photoluminescence of CdSe Quantum Dot-Organic Complexes with a Series of p-Substituted Aniline Ligands." J. Am. Chem. Soc. 2010, 132, 1041-1050.

2008

Du, P.; Knowles, K.; Eisenberg, R. "A Homogeneous System for the Photogeneration of Hydrogen from Water Based on a Platinum(II) Terpyridyl Acetylide Chromophore and a Molecular Cobalt Catalyst." J. Am. Chem. Soc. 2008, 130, 12576-12577.