A fabricated nanotubular SOFC theoretically attains a 20-fold increase in the effective surface, while projections indicate the possibility of achieving up to 40-fold. Park, J. S., Holme, T. P., Shim, J. H., Prinz, F. B. O'Hayre, R., Braithwaite, D., Hermann, W., Lee, S. J., Fabian, T., Cha, S. W., Saito, Y., Prinz, F. B. Lead-time reduction through flexible routing: application to Shape Deposition Manufacturing, Metal embedded Fiber Bragg Grating sensors in layered manufacturing, Lateral ionic conduction in planar array fuel cells. Lee, W., Dasgupta, N. P., Trejo, O., Lee, J., Hwang, J., Usui, T., Prinz, F. B. Stanford Scientists Create a Billionaire Factory. The resulting fabricated patterns were characterized by scanning electron microscopy and Auger electron spectroscopy, which demonstrated that ALD PbS was well confined to defined patterns with high selectivity by ODTS SAMs. Open circuit voltages up to 660 mV (vs air) and power densities up to 1.3 W cm(-2) were measured at 550 C using H2 as fuel. H(2)S is used as a reactant for the ALD of metal sulfides. Cell suspensions were passed at a predetermined flow rate through biodegradable polymer layers that contained tapered microholes in a massively parallel process. While most local drug delivery devices made of biodegradable polymers relied on the degradation of the polymers, the degradation-based release control is often limited by the property of the polymers. Lee, H., Park, S. B., Oh, M., Coo, K., Park, Y., Suzuki, S., Nagai, M., Prinz, F. B. Atomistic simulations of surface segregation of defects in solid oxide electrolytes, Pulsed Direct Current Electric Fields Enhance Osteogenesis in Adipose-Derived Stromal Cells. Mack, J. F., Van Stockum, P. B., Yemane, Y. T., Logar, M., Iwadate, H., Prinz, F. B. Komadina, J., Kim, Y. Amon, C., H., Schmaltz, K., S., Merz, R., Prinz, F., B. Collision avoidance using asynchronous teams. Prinz, F., B., Zhou, Y., Pasquarelli, R., Holme, T., Berry, J., Ginley, D. ATOMIC LAYER DEPOSITION OF PbS-ZnS QUANTUM WELLS FOR HIGH-EFFICIENCY SOLAR CELLS. The stiffness differences are not dependent on cell culture density; hence, material differences between cells cannot be attributed solely to cell-cell constraints. See the full leadership team at Craft. B., Hsu, C., Connor, S. T., Guer, T. M., Cui, Y., Prinz, F. B. Catalysts with Pt Surface Coating by Atomic Layer Deposition for Solid Oxide Fuel Cells. Tafel plots and the fitted impedance data suggest that the charge transfer coefficient of interlayered SOFCs was 1.25 times higher, and the electrode/interfacial activation energy was reduced from 0.85 to 0.76 eV. Atomic layer deposition by reaction of molecular oxygen with tetrakisdimethylamido-metal precursors. We report a new flame reduction method to generate controllable amount of oxygen vacancies in TiO2 nanowires that leads to nearly three times improvement in the photoelectrochemical (PEC) water-splitting performance. Ultra-sharp nano-probes and customized atomic force microscopy (AFM) have previously been developed in our laboratory for in situ sub-cellular probing of electrochemical phenomena in living plant cells during their photosynthesis. To increase the electrochemically active surface area, yttria-stabilized zirconia membranes with thickness of 70 nm were deposited onto prepatterned silicon substrates. Pinilla, J., M., Kao, J., H., Prinz, F., B. By 2012, it claimed investors like Bill Gates and Volkswagen. Pt-N-HOPG shows modified electronic structure of the Pt catalyst and increased activity towards oxygen. Pornprasertsuk, R., Ramanarayanan, P., Musgrave, C. B., Prinz, F. B. Cantilever tip probe arrays for simultaneous SECM and AFM analysis, Rapid prototyping methods of silicon carbide micro heat exchangers. Mr. Singh joined the QuantumScape Board in May 2010. QuantumScape Gender Male Prof. Fritz Prinz is the Chairman of Mechanical Engineering at Stanford University. It is known from optical studies that the bandgap of semiconductor QDs increases as their size decreases due to the narrowing of the quantum confinement potential. Plasma Processing for Crystallization and Densification of Atomic Layer Deposition BaTiO3 Thin Films. The resulting micro-SOFC electrolyte membrane showed a hexagonal-pyramid array nanostructure and achieved a power density of 1.34 W/cm(2) at 500 C. Phuthong, W., Huang, Z., Wittkopp, T. M., Sznee, K., Heinnickel, M. L., Dekker, J. P., Frese, R. N., Prinz, F. B., Grossman, A. R. Grain boundary blocking of ionic conductivity in nanocrystalline yttria-doped ceria thin films. A strong correlation between such tunable material properties and hydrogen evolution reaction activity is established. Seo, Y. H., Kim, L. H., Prinz, F. B., Ryu, W. Electrochemical tuning of vertically aligned MoS2 nanofilms and its application in improving hydrogen evolution reaction. In this work, we demonstrate a method to increase the dielectric constant and decrease the leakage current density of atomic layer deposited BaTiO3 thin films at low process temperature (250 C) using postdeposition remote oxygen plasma treatment. in Management from Stanford Graduate School of Business. Prior to joining QuantumScape, he was the Chief Administrative Officer at Infinera Corporation from April 2003 to March 2013. View details for PubMedCentralID PMC3775093. Obtaining high power density at low operating temperatures has been an ongoing challenge in solid oxide fuel cells (SOFC), which are efficient engines to generate electrical energy from fuels. Share Your Design Ideas, New JerseysMurphy Defends $10 Billion Rainy Day Fund as States Economy Slows, What Led to Europe's Deadliest Train Crash in a Decade, This Week in Crypto: Ukraine War, Marathon Digital, FTX, Chief Scientific Advisor/Co-Founder, Quantumscape Corp. Cermet layers were deposited between the porous Pt cathode and the dense YSZ electrolyte wafer using atomic layer deposition (ALD). We found that oxygen column intensity is governed primarily by column occupancy rather than by static displacement of oxygen atoms. We used atomic force microscopy as a tool to determine stem cell stiffness, and hence differences in material properties between cells. HEMMERLE, J. S., Terk, M., GURSOZ, E. L., Prinz, F. B., Doyle, T. E. Integrated miniaturized biosensors for clinical analyzers and in vivo applications. The reaction mechanism was investigated using density functional theory (DFT), which showed that the initial ALD half-reaction is energetically unfavorable on a methyl-terminated SAM surface. QuantumScape was founded in 2010 by Jagdeep Singh, Fritz Prinz, and Tim Holme from Stanford University. Finally, reaction energetics are calculated for two likely reaction pathways over Pt clusters supported on different HOPG substrates. ALD of lead sulfide (PbS) and zinc sulfide (ZnS) were demonstrated with no chemical contamination or detectable release of H(2)S. View details for Web of Science ID 000277243100039, View details for DOI 10.3938/jkps.56.1215, View details for Web of Science ID 000276783000035, View details for DOI 10.1016/j.actamat.2009.12.005, View details for Web of Science ID 000275511700028. We were also able to establish that commonly reported artifacts of electric field stimulation are not the primary mediators of the observed effects. In this study, we engineered the surface doping concentration of a common oxide electrolyte, yttria-stabilized zirconia (YSZ), with the help of atomic layer deposition (ALD). The OMFC was further studied using simulation packages for optimal design conditions. Oxygen diffusion across the grain boundary in bicrystal yttria stabilized zirconia. This page provides a comprehensive analysis of the known insider trading history of Fritz Prinz. Fabrication of an electrochemical tip-probe system embedded in SiNx-cantilevers for simultaneous SECM and AFM analysis, Geometric scale effect of flow channels on performance of fuel cells. In comparing hASC-iPSCs to their origin cell, the hASC, the reprogrammed cell is significantly less stiff, indicating that greater differentiation potentials may correlate with a lower cellular modulus. Murine adipose-derived stromal cells (mASCs) migrated toward the cathode in direct current (DC) fields of physiologic strength and show a dose dependence of migration rate to stronger fields. A quantum simulation verified both trends and illustrated the wave function extension effect. Li, X. C., Johnsen, J., Groza, J., Prinz, F. Rapid prototyping and manufacturing by gelcasting of metallic and ceramic slurries. Elam, J. W., Dasgupta, N. P., Prinz, F. B. Jiang, X., Guer, T. M., Prinz, F. B., Bent, S. F. Silicon-based Thin Film Solid Oxide Fuel Cell Array, Proton Conductivity Studies of Y-Doped Barium Zirconate: Theoretical and Experimental Approaches. Provine, J., Schindler, P., Torgersen, J., Kim, H. J., Karnthaler, H., Prinz, F. B. Quantifying Geometric Strain at the PbS QD-TiO2 Anode Interface and Its Effect on Electronic Structures. This high resolution cell seeding method allows accurate manipulation of cell placement in thin layers of biodegradable polymers. Local delivery of basic fibroblast growth factor (bFGF) over a specific dose and time course is critical for mesenchymal tissue regeneration. A micro-fabrication technology was used to shape an array of micro-orifices and micro-cavities in 85/15PLGA layers. View details for DOI 10.1088/0957-4484/19/03/035710, View details for DOI 10.1016/j.jpowsour.2007.09.066, View details for Web of Science ID 000252513100009, View details for Web of Science ID 000272018400004, View details for Web of Science ID 000258976500020, View details for Web of Science ID 000262710700009, View details for Web of Science ID 000272018400002, View details for Web of Science ID 000272018400018, View details for Web of Science ID 000271859300058. The ability to intercalate guest species into the van der Waals gap of 2D layered materials affords the opportunity to engineer the electronic structures for a variety of applications. in Economics from Pomona College, a M.B.A. from Stanford Graduate School of Business, and a M.S. Prinz, F., B., Fasching, R., Aschauer, E., Jobst, G., Urban, G. THE ENGINEERING DESIGN RESEARCH-CENTER OF CARNEGIE-MELLON-UNIVERSITY. And the ceramic separator is non-flammable and noncombustible, making our batteries safer than conventional lithium-ion batteries. Fuel Cells for Intermediate Temperature Operation. An, J., Kim, Y., Guer, T. M., Prinz, F. B. Park, J., S., Kang, S., K., Gr, T., M., Prinz, F., B. Through a combination of analyses and experiments, we provide evidence that this behavior is primarily due to an excess of oxygen in the films. The precursors studied were M(x)2 (M = Sr, Ba; x = tetramethylheptanedionate (tmhd), acetylacetonate (acac), hexafluoroacetylacetonate (hfac), cyclopentadienyl (H(5)C(5)), pentamethylcyclopentadienyl (Me(5)C(5)), n-propyltetramethylcyclopentadienyl (PrMe(4)C(5)), tris(isopropylcyclopentadienyl) (Pr(3)(i)H(2)C(5)), tris(isopropylcyclopentadienyl)(THF) (Pr(3)(i)H(2)C(5))(OC(4)H(8)), tris(isopropylcyclopentadienyl)(THF)2 (Pr(3)(i)H(2)C(5))(OC(4)H(8))2, tris(tert-butylcyclopentadienyl) (Bu(3)(t)H(2)C(5)), tris(tert-butylcyclopentadienyl)(THF) (Bu(3)(t)H(2)C(5))(OC(4)H(8)), heptafluoro-2,2-dimethyl-3,5-octanedionate (fod)). Link, G., Huntley, T., Nickel, A., Leitgeb, R., Nguyen, T., Prinz, F. Expanding the design space through innovative design and manufacturing processes, Additive/subtractive material processing for mesoscopic parts. Lee, W., Prinz, F. B., Chen, X., Nonnenmann, S., Bonnell, D. A., O'Hayre, R. P. Nanostructured Platinum Catalysts by Atomic-Layer Deposition for Solid-Oxide Fuel Cells, Oxygen Surface Exchange at Grain Boundaries of Oxide Ion Conductors. However, the high operating temperatures of current SOFCs limit their adoption in mobile applications. Bae, K., Son, K. S., Kim, J. W., Park, S. W., An, J., Prinz, F. B., Shim, J. H. Motoyama, M., Chao, C., An, J., Jung, H. J., Gr, T. M., Prinz, F. B. Atomic Scale Verification of Oxide-Ion Vacancy Distribution near a Single Grain Boundary in YSZ. Microelectromechanical system (MEMS) technology not only provides the possibility of integration of multiple functions but also enables more precise control of dosing of therapeutic agents when the therapeutic window is very limited. Chang, Y. C., Kao, J. H., Pinilla, J. M., Dong, J., Prinz, F. B. Weiss, L., Prinz, F., Neplotnik, G., Padmanabhan, K., Schultz, L., Merz, R. Miniaturisierte, integrierte Biosensoren fr Glucose- und Lactat - Monitoring. We also believe that the sustained kinetics for the fully mixed cermet layer sample stems from better thermal stability of Pt islands separated by the ALD YSZ matrix, which helped to maintain the high-density TPBs even at elevated temperature. B., Shim, J. H., Guer, T. M., Prinz, F. B. Ryu, W., Min, S. W., Hammerick, K. E., Vyakarnam, M., Greco, R. S., Prinz, F. B., Fasching, R. J. Electrochemical impedance analysis of solid oxide fuel cell electrolyte using kinetic Monte Carlo technique. Atomic Layer Deposition of Undoped TiO2 Exhibiting p-Type Conductivity.
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