Hanrath, Tobias - Cornell University - Smith School of Chemical and Biomolecular Engineering

个人简介

Tobias received a B.S. from University of Tulsa, OK (2000), M.S. from University of Texas at Austin (2002) and Ph.D., University of Texas at Austin (2004). He served as Postdoctoral Research Fellow, MIT (2005) Postdoctoral Research Fellow, TU Eindhoven, and The Netherlands (2006-2007) before coming to Cornell. Education B.S.(Chemical Engineering & Chemistry),University of Tulsa,2000 M.S.(Chemical Engineering),University of Texas at Austin,2002 Ph.D.(Chemical Engineering),University of Texas at Austin,2004

研究领域

There is a tremendous opportunity space for nanostructured materials to play a key role in next generation energy technologies. Our research efforts focus on the fundamental study of optoelectronic properties of semiconductor nanocrystals; this work is inspired by the potential application of these materials in solar energy conversion and energy storage devices. The semiconductor nanocrystals used in our work provide a diverse set of building blocks whose electronic and optical properties differ from their bulk counterparts due to the spatial wavefunction confinement. This quantum confinement effect allows us to engineer the materials properties through simple adjustments in nanocrystal size, shape, composition, and surface chemistry. In addition to their immense potential for technological applications, these materials also provide a material system to experimentally test fundamental quantum mechanical concepts. Nanotechnology Advanced Materials Processing Advanced Materials Surface Science Sustainable Energy Systems Nanoscale Electronics, Photonics and Materials Processing.

近期论文

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Kimura, K.W., Casebolt, R., DaSilva, J., Kauffman, E., Kim, J., Dunbar, T.A., Pollock, C.J., Suntivich, J., Hanrath, T. Selective electrochemical CO2 reduction during pulsed potential stems from dynamic interface. ACS Catal. 2020, 10 (15), 8632–8639. DaSilva, J., Smeaton, M.A., Dunbar, T.A., Xu, Y., Balazs, D.M., Kourkoutis, L.F., Hanrath, T. Mechanistic insights into superlattice transformation at a single nanocrystal level using nanobeam electron diffraction. Nano Lett. 2020, 20 (7), 5267-5274. Balazs, D.M., Dunbar, T.A., Smilgies, D.M., Hanrath, T. The coupled dynamics of colloidal nanoparticle spreading and self-assembly at a fluid-fluid interface. Langmuir 2020, accepted. Hanrath, T. Mesoscale metamorphosis. Nature Materials 2020, 19 (1), 2-3. Williamson, C.B., Nevers, D.R., Nelson, A., Hadar, I., Banin, U., Hanrath, T., Robinson, R.D. Chemically reversible isomerization of inorganic clusters. Science 2019, 363 (6428), 731-735. Huang, J.Y., Xu, H., Peretz, E., Wu, D.Y., Ober, C.K., Hanrath, T. Three-Dimensional Printing of Hierarchical Porous Architectures. Chemistry of Materials 2019, 31 (24), 10017-10022. McCray, A.R.C., Savitzky, B.H., Whitham, K., Hanrath, T, Kourkoutis, L.F. Orientational Disorder in Epitaxially Connected Quantum Dot Solids. ACS Nano 2019, 13 (10), 11460-11468. Smeaton, M.A., Balazs, D.M., Hanrath, T, Kourkoutis, L.F. Quantifying Atomic-Scale Quantum Dot Superlattice Behavior Upon in situ Heating. Microscopy and Microanalysis 2019, 25 (S2), 1538-1539. Richards, B.T., McShane, E.J., Schraer, S.R., Whitham, K., Hanrath, T. Monitoring Seed Formation Dynamics of Bulk-nucleated Vapor-Solid-Solid Germanium Nanowires via Resistance Measurements . Chem. Mater. 2018, accepted. Kimura, K.W., Fritz, K.E., Kim, J., Suntivich, J, Abruña, H.D., Hanrath, T. Controlled Selectivity of CO2 Reduction on Copper by Pulsing the Electrochemical Potential . ChemSusChem 2018, 11 (11), 1781-1786. Nevers, D.R., Williamson, C.B, Savitzky, B.H., Hadar, I., Banin, U., Kourkoutis, L.F., Hanrath, T., Robinson, R.D. Mesophase Formation Stabilizes High-Purity Magic-Sized Clusters. J. Am. Chem. Soc. 2018, 140 (10), 3652–3662. Whitham, K., Smilgies, D.-M., Hanrath, T. Entropic, Enthalpic, and Kinetic Aspects of Interfacial Nanocrystal Superlattice Assembly and Attachment. Chem. Mater. 2018, 30 (1), 54–63. Padgett, E., Hovden, R., DaSilva, J., Levin, B., Grazul, J., Hanrath, T., Muller, D. A Simple Preparation Method for Full-Range Electron Tomography of Nanoparticles and Fine Powders. Microsc. Microanal. 2017, 23 (6), 1150-1158. Padgett, E., Hovden, R., Da Silva, J., Hanrath, T., Muller, D. New Full-Range Electron Tomography Procedure for Accurate Quantification of Surfaces, Curvature, and Porosity in Energy-Related Nanomaterials. Microsc. Microanal. 2017, 23 (S1), 2002-2003. Gupta, U., Hanrath, T., Escobedo, F.A. Modeling the orientational and positional behavior of polyhedral nanoparticles at fluid-fluid interfaces. Phys. Rev. Materials 2017, 1, 055602. Smilgies, D.-M., Hanrath, T. Superlattice self-assembly: Watching nanocrystals in action. EPL 2017, 119 (2), 28003. Whitham, K., Hanrath, T. On the formation of epitaxially connected quantum dot solids: nucleation and coherent phase transition. J. Phys. Chem. Lett. 2017, 8 (12), 2623–2628. Treml, B. E., Savitzky, B. H., Tirmzi, A. M., DaSilva, J., Kourkoutis, L. F., Hanrath, T. Successive ionic layer absorption and reaction for post-assembly control over inorganic inter-dot bonds in long-range ordered nanocrystal films. ACS Appl. Mater. Interfaces 2017, 9 (15), 13500-13507. Tirmzi, A. M., Dwyer, R. P., Hanrath, T., Marohn, J. A. Coupled slow and fast charge dynamics in cesium lead bromide perovskite. ACS Energy Lett. 2017, 2 (2), 488-496. Richards, B., Schraer, S., McShane, E., Quintana, J., Levin, B., Muller, D., Hanrath, T. Reaction kinetics of germanium nanowire growth on inductively heated copper surfaces. Chem. Mater. 2017, 29 (11), 4792-4800. Nevers, D. R., Williamson, C. B., Hanrath, T., Robinson, R. D. Surface chemistry of cadmium sulfide magic-sized clusters: a window into ligand-nanoparticle interactions. Chem. Comm. 2017, 53 (19), 2866-2869.