{"id":1,"date":"2016-03-08T18:44:32","date_gmt":"2016-03-08T18:44:32","guid":{"rendered":"http:\/\/knowlesgroup.wordpress.com\/?page_id=1"},"modified":"2026-05-17T10:49:05","modified_gmt":"2026-05-17T10:49:05","slug":"about","status":"publish","type":"page","link":"http:\/\/www.sas.rochester.edu\/chm\/groups\/knowles\/about\/","title":{"rendered":"Publications"},"content":{"rendered":"

46. Rajan, R.; Craddock, E. P.; Knowles, K. E.*<\/sup> <\/strong>Impact of Composition on the Optical Properties of Colloidal Ternary Spinel Oxide Nanocrystals: Spinel Ferrites versus Spinel Gallates. Chem. Mater.<\/em> 2026<\/strong>, 38<\/em>, 4561-4569. (link<\/a>)<\/p>\n

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45. Craddock, E. P.;\u00a0Knowles, K. E.\u00a0<\/strong>Signatures of photogenerated small polarons in transition metal oxides.\u00a0Chem. Commun.<\/em>\u00a02026<\/strong>,\u00a062<\/em>, 3151-3166. (Invited Perspective) (link<\/a>)\"\"<\/a><\/p>\n

44. Rajan, R.; Scalia, J. C.; De Jes\u00fas B\u00e1ez, L. R.;\u00a0Knowles, K. E.<\/strong>\u00a0Ligand-Dependent Optical Properties of Colloidal Ternary Spinel Oxide Nanocrystals Containing Transition Metals.\u00a0Inorg. Chem.\u00a0<\/em>2025<\/strong>, 64<\/em>, 15152-15164. (link<\/a>)<\/p>\n

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43. Craddock, E. P.; Shelton, J. L.; Ruggiero, M. T.; Knowles K. E.\u00a0<\/b>Local coordination geometry within cobalt spinel oxides mediates photoinduced polaron formation. Chem. Sci. <\/i>2025<\/b>, 16<\/em>, 10759-10770. (link<\/a>) (One of Chem. Sci.’s Most Popular Physical Chemistry articles of 2025<\/a>)\"\"<\/a><\/p>\n

42. Valerio, L. R.; Chowdhury, S. R.; Lewis, R.; Knowles, K. E.<\/strong>; Vlaisavljevich, B.; Matson, E. M. Photoluminescence of a Uranium(IV) Alkoxide Complex. JACS Au<\/em>, 2025<\/strong>, 5<\/em>, 332-342. (link<\/a>)<\/p>\n

41. Maldonado-Lopez, D.; Huang, P.-W.; Sanchez-Lievanos, K. R.; Jana, G.; Mendoza-Cortes, J. L.; Knowles, K. E.<\/b>; Hatzell, M. C. Nitrogen-containing Surface Ligands Lead to False Positives for Photofixation of N2 <\/sub>on Metal Oxide Nanocrystals: An Experimental and Theoretical Study. Adv. Funct. Mater.<\/i>, 2024<\/b>, 2413319. (link<\/a>)<\/p>\n

40. Sanchez-Lievanos, K. R.; Sun, T.; Gendrich, E. A.; Knowles, K. E.<\/b>\u00a0Surface Adsoprtion and Photoinduced Degradation: A Study of Spinel Ferrite Nanomaterials for Removal of a Model Organic Pollutant from Water. Chem. Mater. <\/i>2024<\/b>, 36<\/i>, 3981-3998. (Invited Perspective) (link<\/a>)<\/p>\n

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39. Ram\u00edrez, E.; Carmona-P\u00e9rez, D.; Marco, J. F.; Sanchez-Lievanos, K. R.; Sabinas-Hern\u00e1ndez, S. A.; Knowles, K. E.<\/b>; Elizalde-Gonz\u00e1lez, M. P. Comparison of MAF-32 and a One-Pot Synthesized Superparamagnetic Iron Oxide\/MAF-32 Composite for the Adsorption of Diclofenac. Materials<\/i>, 2024<\/b>, 17<\/i>, 2269. (link<\/a>)<\/p>\n

38. Beidelman, B. A.; Zhang, X.; Matson, E. M.;\u00a0Knowles, K. E.<\/strong> Acidity of Carboxylic Acid Ligands Influences the Formation of VO2<\/sub>(A) and VO2<\/sub>(B) Nanocrystals under Solvothermal Conditions. ACS Nanosci. Au<\/em>,\u00a02023<\/strong>, 3<\/em>, 381-388. (link<\/a>)<\/p>\n

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37. Shelton, J. L.;\u00a0Knowles, K. E.<\/strong> Polaronic Optical Transitions in Hematite (\u03b1-Fe2<\/sub>O3<\/sub>) Revealed by First-Principles Electron-Phonon Coupling.\u00a0J. Chem. Phys.<\/em>, 2022<\/strong>, 157<\/em>, 174703.\u00a0(link<\/a>)<\/p>\n

36.\u00a0Beidelman, B. A.; Zhang, X.; Sanchez-Lievanos, K. R.; Selino, A. V.; Matson, E. M.; Knowles, K. E.\u00a0<\/strong>Influence of Water Concentration on the Solvothermal Synthesis of VO2<\/sub>(B) Nanocrystals.\u00a0CrystEngComm<\/em>, 2022<\/strong>, 24<\/em>, 6009-6017.\u00a0<\/em>(link<\/a>)<\/p>\n

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35.\u00a0Sanchez-Lievanos, K. R.; Knowles, K. E.\u00a0<\/strong>Controlling Cation Distribution and Morphology in Colloidal Zinc Ferrite Nanocrystals. Chem. Mater.<\/em>, 2022<\/strong>, 34<\/em>, 7446-7459. (link<\/a>)<\/p>\n

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34. Chakraborty, S.*; Schreiber, E.*; Sanchez-Lievanos, K. R.; Tariq, M.; Brennessel, W. W.;\u00a0Knowles, K. E.<\/b>; Matson, E. M.\u00a0Modelling local structural and electronic consequences of proton and hydrogen-atom uptake in VO2\u00a0<\/sub>with polyoxovanadate clusters.\u00a0Chem. Sci.<\/i>,\u00a02021<\/b>, 12<\/em>, 12744-12753.\u00a0(*these authors made equal contributions to this work) (link<\/a>)<\/p>\n

33. Brewster, D. A.*; Koch, M. D.*;\u00a0Knowles, K. E.<\/strong> Evaluation of electrochemical properties of nanostructured metal oxide electrodes immersed in redox-inactive organic media.\u00a0Phys. Chem. Chem. Phys.<\/em>,\u00a02021<\/strong>, 23<\/em>, <\/em>17904-17916. <\/em>DOI:10.1039\/D1CP02370E. (*these authors made equal contributions to this work)\u00a0(link<\/a>)<\/p>\n

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32. Shelton, J. L.;\u00a0Knowles, K. E.<\/strong> Thermally Activated Optical Absorption into Polaronic States in Hematite.\u00a0J.\u00a0Physical. Chem. Lett.\u00a0<\/i>2021<\/strong>, 12<\/i>, 3343-3351. (link<\/a>)<\/p>\n

\"\"<\/a><\/p>\n

31. Sanchez-Lievanos, K. R.; Stair, J. L.;\u00a0Knowles, K. E.\u00a0<\/strong>Cation Distribution in Spinel Ferrite Nanocrystals: Characterization, Impact on their Physical Properties, and Opportunities for Synthetic Control.\u00a0Inorg. Chem.<\/em>\u00a02021<\/strong>,\u00a060<\/em>, 4291-4305.(Invited contribution to the Forum on\u00a0Inorganic Chemistry of Nanoparticles<\/i>) (link<\/a>)<\/p>\n

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30. Sanchez-Lievanos, K. R.; Tariq, M.; Brennessel, W. W.;\u00a0Knowles, K. E.<\/strong> Heterometallic Trinuclear Oxo-centered Clusters as Single-Source Precursors for Synthesis of Stoichiometric Monodisperse Transition Metal Ferrite Nanocrystals.\u00a0Dalton Trans.<\/em>\u00a02020<\/strong>, 49<\/em>, 16348-16358.\u00a0<\/em>(Invited Contribution to the New Talent: Americas<\/em> special issue) (link<\/a>)<\/p>\n

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29. Brewster, D. A.; Bian, Y.;\u00a0Knowles, K. E.\u00a0<\/strong>Direct Solvothermal Synthesis of Phase-Pure Colloidal NiO Nanocrystals.\u00a0Chem. Mater.<\/em>\u00a02020<\/strong>,\u00a032<\/em>, 2004-2013.\u00a0(link<\/a>)<\/p>\n

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28. Tariq, M.; Koch, M. D.; Andrews, J. W.;\u00a0Knowles, K. E.<\/strong> Correlation Between Surface Chemistry and Optical Properties in Colloidal Cu2<\/sub>O Nanoparticles.\u00a0J. Phys. Chem. C\u00a0<\/em>2020<\/strong>, 124, <\/em>4810-4819. (link<\/a>)<\/p>\n

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27. Brewster, D. A.; Sarappa, D. J.; Knowles, K. E.\u00a0<\/strong>Role of Aliphatic Ligands and Solvent Composition in the Solvothermal Synthesis of Iron Oxide Nanocrystals.\u00a0Polyhedron<\/em>\u00a02019<\/strong>,\u00a0157<\/em>, 54-62. (link<\/a>)<\/p>\n

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26.\u00a0Knowles, K. E.<\/strong>; Koch, M. D.; Shelton, J. L. Three Applications of Ultrafast Transient Absorption Spectroscopy of Semiconductor Thin Films: Spectroelectrochemistry, Microscopy, and Identification of Thermal Contributions. J. Mater. Chem. C <\/em>2018<\/strong>, 6,\u00a0<\/em>11853-11867. (Invited Article: Emerging Investigators Issue) (link<\/a>)<\/p>\n

\"\"<\/p>\n

From postdoc work at the University of Washington<\/strong><\/em><\/p>\n

25. Marchioro, A.; Whitham P. J.; Nelson, H. D.; De Siena, M. C.; Knowles, K. E.<\/strong>; Polinger, V. Z.; Reid, P. J.; Gamelin, D. R. Strong Dependence of Quantum-Dot Delayed Luminescence on Excitation Pulse Width. J. Phys. Chem. Lett. <\/i>2017<\/b>,\u00a0<\/b>8<\/i>, 3997-4003. (link<\/a>)<\/p>\n

24. Marchioro, A.; Whitham P. J.;\u00a0Knowles, K. E.<\/strong>, Kilburn, T. B.; Reid, P. J.; Gamelin, D. R. Tunneling in the Delayed Luminescence of Colloidal CdSe, Cu+<\/sup>-Doped CdSe, and CuInS2<\/sub> Semiconductor Nanocrystals, and Relationship to Blinking.\u00a0J. Phys. Chem. C<\/em>\u00a02016<\/strong>,\u00a0120<\/em>, 27040-27049. (link<\/a>)<\/p>\n

23. Yang, L.;\u00a0Knowles, K. E.<\/strong>; Gopalan, A.; Hughes, J. E.; James, M. C.; Gamelin, D. R. One-Pot Synthesis of Monodisperse Colloidal Copper-Doped CdSe Nanocrystals Mediated by Ligand-Copper Interactions.\u00a0Chem. Mater.<\/em>\u00a02016<\/strong>,\u00a028<\/em>, 7375-7384. (link<\/a>)<\/p>\n

22. Whitham, P. J.; Marchioro, A.; Knowles, K. E.<\/strong>, Kilburn, T. B.; Reid, P. J.; Gamelin, D. R. Single-Particle Photoluminescence Spectra, Blinking, and Delayed Luminescence of Colloidal CuInS2<\/sub> Nanocrystals. J. Phys. Chem. C<\/em> 2016<\/strong>, 120<\/em>, 17136-17142. (link<\/a>)<\/p>\n

21. Knowles, K. E.*<\/strong>; 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. Invited Review, Chem. Rev.\u00a0<\/em>2016<\/strong>, 10820-10851. *<\/em>denotes co-corresponding author\u00a0(link<\/a>)<\/p>\n

20. Knowles, K. E.<\/strong>; Nelson, H. D.; Kilburn, T. B.; Gamelin, D. R. Singlet-Triplet Splittings in the Luminescent Excited States of Colloidal Cu+<\/sup>:CdSe, Cu+<\/sup>:InP, and CuInS2<\/sub> Nanocrystals: Charge-Transfer Configurations and Self-Trapped Excitons, J. Am. Chem. Soc.\u00a0<\/span><\/em>2015<\/span><\/strong>,\u00a0 137<\/span><\/em>,\u00a0 13138-13147. (link<\/a>)<\/span><\/p>\n

19. Schimpf, A. M.; Knowles, K. E.<\/strong>; Carroll, G. M.; Gamelin, D. R. Electronic Doping and Redox-Potential Tuning in Colloidal Semiconductor Nanocrystals, Acc. Chem. Res.<\/em> 2015<\/strong>, 48<\/em>, 1929-1937. (link<\/a>)<\/p>\n

18. Whitham, P. J.; Knowles, K. E.<\/strong>; Reid, P. J.; Gamelin, D. R. Photoluminescence Blinking and Reversible Electron Trapping in Copper-Doped CdSe Nanocrystals, Nano Lett. <\/em>2015<\/strong>, 15<\/em>, 4045-4051. (link<\/a>)<\/p>\n

17. Knowles, K. E.<\/strong>; Kilburn, T. B.; Alzate, D. G.; McDowall, S.; Gamelin, D. R. Bright CuInS2<\/sub>\/CdS Nanocrystal Phosphors for High-Gain Full-Spectrum Luminescent Solar Concentrators, Chem. Commun.<\/em> 2015<\/strong>, 51<\/em>, 9129-9132. (link<\/a>)<\/p>\n

16. Bradshaw, L. R.; Knowles, K. E.<\/strong>; McDowall, S.; Gamelin, D. R. Nanocrystals for Luminescent Solar Concentrators, Nano Lett.<\/em> 2015<\/strong>, 15<\/em>, 1315-1323. (link<\/a>)\u00a0<\/b>Featured in Nature: News and Views<\/em>: Debije, M. Renewable Energy: Better luminescent solar panels in prospect. Nature<\/em> 2015<\/strong>, 519<\/em>, 298. (link<\/a>)<\/p>\n

From graduate work at Northwestern University<\/em><\/strong><\/p>\n

15. Lefler, K. M.; Brown, K. E.; Salamant, W. A.; Dyar, S. M.; Knowles, K. E.<\/strong>; Wasielewski,\u00a0R. Triplet State Formation in Photoexcited Slip-Stacked Perylene-3,4:9,10-bis(dicarboximide) Dimers on a Xanthene Scaffold, J. Phys. Chem. A<\/em> 2013<\/strong>, 117<\/em>, 10333-10345. (link<\/a>)<\/p>\n

14. Knowles, K. E.<\/strong>; 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<\/em> 2013<\/strong>, 117<\/em>, 15849-15857. (link<\/a>)<\/p>\n

13. Knowles, K. E.<\/strong>; 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<\/em> 2013<\/strong>, 117<\/em>, 10229-10243. (link<\/a>)<\/p>\n

12. Knowles, K. E.<\/strong>; 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.<\/em> 2013<\/strong>, 135<\/em>, 7264-7271. (link<\/a>)<\/p>\n

11. Knowles, K. E.<\/strong>; Malicki, M.; Weiss, E. A. Dual-Timescale Photoinduced Electron Transfer from PbS Quantum Dots to a Molecular Acceptor, J. Am. Chem. Soc.<\/em> 2012<\/strong>, 134<\/em>, 12470-12473. (link<\/a>)<\/p>\n

10. Malicki, M.; Knowles, K. E.<\/strong>; Weiss, E. A. Gating of Hole Transfer from Photoexcited PbS Quantum Dots to Aminoferrocene by the Ligand Shell of the Dots, Chem. Commun.<\/em> 2013<\/strong>, 49<\/em>, 4400-4402. (link<\/a>)<\/p>\n

9. Evans, C. M.; Cass, L. C.; Knowles, K. E.<\/strong>; 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.<\/em> 2012<\/strong>, 65<\/em>, 2391-2414. (link<\/a>)<\/p>\n

8. Knowles, K. E.<\/strong>; Frederick, M. T.; Tice, D. B.; Morris-Cohen, A. J.; Weiss, E. A. Colloidal\u00a0\u00a0\u00a0 Quantum Dots: Think Outside the (Particle-in-a-)Box, J. Phys. Chem. Lett.<\/em> 2012<\/strong>, 3<\/em>, 18-26.<\/em> (link<\/a>)<\/p>\n

7. Knowles, K. E.<\/strong>; McArthur, E. A.; Weiss, E. A. A Multi-Timescale Map of Radiative and Nonradiative Decay Pathways for Excitons in CdSe Quantum Dots. ACS Nano <\/em>2011<\/strong>, 5<\/em>, 2026.<\/p>\n

6. Frederick, M. T.; Achtyl, J. A.; Knowles, K. E.<\/strong>; 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.<\/em> 2011<\/strong>, 133<\/em>, 7476-7481. (link<\/a>)<\/p>\n

5. Donakowski, M. D.; Godbe, J. M.; Sknepnek, R.; Knowles, K. E.<\/strong>; Olvera de la Cruz, M.; Weiss, E. A. A Quantitative Description of the Binding Equilibria of para-Substituted Aniline Ligands and CdSe Quantum Dots.\u00a0 J. Phys. Chem. C<\/em> 2010<\/strong>, 114<\/em>, 22526-22534. (link<\/a>)<\/p>\n

4. McArthur, E. A.; Morris-Cohen, A. J.; Knowles, K. E.<\/strong>; 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<\/em> 2010<\/strong>, 114<\/em>, 14514-14520. (link<\/a>)<\/p>\n

3. Morris-Cohen, A. J.; Donakowski, M. D.; Knowles, K. E.<\/strong>; 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<\/em> 2010<\/strong>, 114<\/em>, 89-906. (link<\/a>)<\/p>\n

2. Knowles, K. E.<\/strong>; 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 Para-Substituted Aniline Ligands, J. Am. Chem. Soc.<\/em> 2010<\/strong>, 132<\/em>, 1041-1050. (link<\/a>)<\/p>\n

From undergraduate research at the University of Rochester<\/em><\/strong><\/p>\n

1. Du, P.; Knowles, K.<\/strong>; 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. <\/em>\u00a02008<\/strong>, 130<\/em>,\u00a012576-12577. (link<\/a>)<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

46. Rajan, R.; Craddock, E. P.; Knowles, K. E.* Impact of Composition on the Optical Properties of Colloidal Ternary Spinel Oxide Nanocrystals: Spinel Ferrites versus Spinel Gallates. Chem. Mater. 2026, 38, 4561-4569. (link) 45. Craddock, E. P.;\u00a0Knowles, K. E.\u00a0Signatures of … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":22,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.sas.rochester.edu\/chm\/groups\/knowles\/wp-json\/wp\/v2\/pages\/1","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sas.rochester.edu\/chm\/groups\/knowles\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.sas.rochester.edu\/chm\/groups\/knowles\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.sas.rochester.edu\/chm\/groups\/knowles\/wp-json\/wp\/v2\/users\/22"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sas.rochester.edu\/chm\/groups\/knowles\/wp-json\/wp\/v2\/comments?post=1"}],"version-history":[{"count":46,"href":"https:\/\/www.sas.rochester.edu\/chm\/groups\/knowles\/wp-json\/wp\/v2\/pages\/1\/revisions"}],"predecessor-version":[{"id":5962,"href":"https:\/\/www.sas.rochester.edu\/chm\/groups\/knowles\/wp-json\/wp\/v2\/pages\/1\/revisions\/5962"}],"wp:attachment":[{"href":"https:\/\/www.sas.rochester.edu\/chm\/groups\/knowles\/wp-json\/wp\/v2\/media?parent=1"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}