Low Temperature Direct Methanol Fuel Cell with YSZ Electrolyte. Combined Heat and Mass Transfer Model of a Passive Air Breathing Fuel Cell Cathode. Exploring the local electronic structure and geometric arrangement of ALD Zn(O,S) buffer layers using X-ray absorption spectroscopy. 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. Thermal behavior of a metal embedded fiber Bragg grating sensor, Miniature fuel cells with non-planar interface by microfabrication. Prior to joining QuantumScape, he was a Research Associate at Stanford University from June 2008 to January 2011. Mr. McCarthy also currently serves on the board of QSV Operations LLC. View details for Web of Science ID 000276969700113. For a sample with a surface potential discontinuity, the FM-EFM resolution expression agrees with the literature; however, the simulation for AM-EFM suggests the existence of an optimal tip radius of curvature in terms of resolution. Conceptual data model for advanced rapid prototyping. What is QuantumScape? We used atomic force microscopy-based force spectroscopy to record an increase in the cytoskeletal tension after treatment with electric fields. From least to most stiff, the order of cell stiffness was as follows: hASC-iPSC, human embryonic stem cell, fibroblast-iPSC, fibroblasts, and, lastly, as the stiffest cell, hASC. View details for PubMedCentralID PMC3775093. Water management in proton exchange membrane fuel cells using integrated electroosmotic pumping. O'Hayre, R., Barnett, D. M., Prinz, F. B. Effect of Cation Non-Stoichiometry and Crystallinity on the Ionic Conductivity of Atomic Layer Deposited Y:BaZrO3 Films. We conclude, based on Hif2, that a gold electrode is approximately 14 times less efficient as an electron acceptor than FAD and that the mercaptopyridine SAM enhances electron transfer. Quantumscape's Founder & CEO, Board Chairman is Jagdeep Singh. Cai, L., Cho, I. S., Logar, M., Mehta, A., He, J., Lee, C. H., Rao, P. M., Feng, Y., Wilcox, J., Prinz, F. B., Zheng, X. Fan, Z., Chao, C., Hossein-Babaei, F., Prinz, F. B. Stress-driven grain growth in nanocrystalline Pt thin films. Ryu, W., H., Prinz, F., B., Greco, R., S., Fasching, R. Nanofabrication of electrochemical planar probes for single cell analysis, Thin-film SOFCs using gastight YSZ thin films on nanoporous substrates. 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. Comparison of electron transfer from reduced ferredoxin to FAD and a gold electrode, FUEL 192-Conversion of a plant chloroplast to a biological fuel cell, Atomic layer deposition of yttria-stabilized zirconia for solid oxide fuel cells. in Mechanical Engineering, and a Ph.D. in Mechanical Engineering from Stanford University. Its resolution is limited by the finite probe size and the long-range characteristics of electrostatic forces. Park, Y. I., Su, P. C., Cha, S. W., Saito, Y., Prinz, F. B. From a living algal cell, Chlamydomonas reinhardtii, photosynthetic electrons (1.2 pA at 6000 mA/m(2)) were directly extracted without a mediator electron carrier by inserting a nanoelectrode into the algal chloroplast and applying an overvoltage. This work provides an intriguing and effective approach on tuning electronic structures for optimizing the catalytic activity. O'Hayre, R., Lee, S. J., Cha, S. W., Prinz, F. B. Capacitive blade tip clearance measurements for a micro gas turbine. Cha, S. W., O'Hayre, R., Park, Y., Prinz, F. B. A variety of metals can be chosen as the tip material. The devices were constructed by micro-molding and thermal assembly of 85/15 poly(L-lactide-co-glycolide) sheets. Shim, J. H., Jiang, X., Bent, S. F., Prinz, F. B. DEMES, G. H., Fenves, S. J., GROSSMANN, I. E., Hendrickson, C. T., Mitchell, T. M., Prinz, F. B., Siewiorek, D. P., Subrahmanian, E., Talukdar, S., Westerberg, A. W. Amon, C., Beuth, J., Kirchner, H., Merz, R., Prinz, F., Schmaltz, K. Electrochemical thin-film carbondioxide sensors on novel polymer membrane system for in vitro and in vivo applications. Shim, J. H., Kim, Y. Tim Holme, and Fritz B. Prinz in May 2010 and is . Amon, C. H., Beuth, J. L., Weiss, L. E., Merz, R., Prinz, F. B. B., Park, J. S., Guer, T. M., Kang, S., Prinz, F. B. Yoneoka, S., Liger, M., Yama, G., Schuster, R., Purkl, F., Provine, J., Prinz, F. B., Howe, R. T., Kenny, T. W. Electrodeposited Metallic Nanowires as a Scanning Probe Tip, Scanning tunneling spectroscopy of lead sulfide quantum wells fabricated by atomic layer deposition. s) are accessible superseding the use of extrinsic doping, which generally produces orders of magnitude smaller values. Using such nanofilms after different degree of Li intercalation, we show the significant improvement of the hydrogen evolution reaction activity. Prinz, F., B., Fasching, R., Keplinger, F., Aschauer, E., Urban, G. Miniaturisierte Dnnschicht-Blutgassensoren fr die in vivo und ex vivo Diagnostik. Buie, C. R., Posner, J. D., Fabian, T., Cha, S., Prinz, F. B., Eaton, J. K., Santiago, J. G. A microfabricated intravascular ultrasound scanner for intravascular interventions. QuantumScape (ticker: QS) was founded in 2010 by Stanford University scientists Jagdeep Singh, Fritz Prinz and Tim Holme to develop what are known as solid-state batteries for electric. However, existing doping methods face the challenge of simultaneous control over the morphology, crystallinity, dopant distribution and concentration at the nanometer scale. Effect of High Surface Area Pd Electrodes on SOFC Performance at 350 degrees C. Komadina, J., Motoyama, M., Kim, Y. B., Kim, J. 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. Employing 50 Hz direct current electric fields in concert with and without osteogenic factors, we demonstrated increased early osteoblast-specific markers. Discharged Charged Next-Generation Mobility Live from New York, is focused on bringing you. Further extension of these techniques to create a micro-vascular network within or between layers is possible. Dasgupta, N. P., Neubert, S., Lee, W., Trejo, O., Lee, J., Prinz, F. B. We present atomic-scale imaging of oxygen columns and show quantitative analysis on the occupancy of the columns in yttria-stabilized zirconia (YSZ) using aberration-corrected TEM operated under the negative Cs condition. Material strength in polymer shape deposition manufacturing, INTEGRATED DESIGN AND RAPID MANUFACTURING OVER THE INTERNET. in Management from Stanford Graduate School of Business. Prof. Fritz Prinz, co-founder of . Part strength improvement in polymer shape deposition manufacturing, Medial Axis Transform (MAT) of general 2D shapes and 3D polyhedra for engineering applications. 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. Then, the UME was used for an in vivo amperometric experiment at a fixed potential and electrochemical impedance spectroscopy to detect oxygen evolution of the single cell under various light intensities. QuantumScape was founded in 2010 to create a battery that doesnt make compromises and after a decade of hard work, weve built a technology that enables the fast charging, long-lasting and safer batteries required to power zero-emissions transportation. B., Fasching, R., Prinz, F. B. Jee, Y., Cho, G. Y., An, J., Kim, H., Son, J., Lee, J., Prinz, F. B., Lee, M. H., Cha, S. W. Electrodeposition and Behavior of Single Metal Nanowire Probes, Proton incorporation in yttria-stabilized zirconia during atomic layer deposition. Forward-Looking Statements This high resolution cell seeding method allows accurate manipulation of cell placement in thin layers of biodegradable polymers. Design and tuning of a vacuum microplasma spray system: Particle entrainment. The recent technique of transducing key transcription factors into unipotent cells (fibroblasts) to generate pluripotent stem cells (induced pluripotent stem cells [iPSCs]) has significantly changed the stem cell field. Relating Electronic and Geometric Structure of Atomic Layer Deposited BaTiO3 to its Electrical Properties. Stanford Scientists Create a Billionaire Factory. Prinz, F., B., Aschauer, E., Fasching, R., Jobst, G., Varahram, M., Svasek, P. Numerical and Experimental Investigation of Interface Bonding Via Substrate Remelting of an Impinging Molten Metal Droplet. Park, J. S., An, J., Lee, M. H., Prinz, F. B., Lee, W. The Use of Contact Mode Atomic Force Microscopy in Aqueous Medium for Structural Analysis of Spinach Photosynthetic Complexes. Walch, S. P., Komadina, J. D., Prinz, F. B. For cells with unmixed and fully mixed cermet interlayers, the maximum power density was enhanced by a factor of 1.5 and 1.8 at 400 C, and by 2.3 and 2.7 at 450 C, respectively, when compared to control cells with no cermet interlayer. Stampfl, J., Liu, H. C., Nam, S. W., Kang, S., Prinz, F. B. By 2012, it claimed investors like Bill Gates and Volkswagen. Park, Y. I., Cha, S. W., Saito, Y., Prinz, F. B. Shim, J., H., Kim, Y., B., Park, J., S., Prinz, F., B. LIFETIME PREDICTIONS FOR A CERAMIC CUTTING-TOOL MATERIAL AT HIGH-TEMPERATURES. Most recently, Fritz Prinz sold 270,301 shares of the business's stock in a transaction on Monday, August 15th. HEMMERLE, J. S., Terk, M., GURSOZ, E. L., Prinz, F. B., Doyle, T. E. Integrated miniaturized biosensors for clinical analyzers and in vivo applications. After a negative bias was applied at the tip, a sequence of surface potential maps appeared compatible with electron injection onto the electrolyte surface. No deposition was measured with tmhd precursors, and SrO films were deposited with PrMe(4)Cp with a source temperature of 200 degrees C and at substrate temperatures between 250 and 350 degrees C with growth rates increasing for oxygen sources in this order: O2 < H2O < O2 + H2O. Approaching the limits of dielectric breakdown for SiO2 films deposited by plasma-enhanced atomic layer deposition. Hammerick, K. E., Huang, Z., Sun, N., Lam, M. T., Prinz, F. B., Wu, J. C., Commons, G. W., Longaker, M. T. Gadolinia-doped Ceria Cathode Interlayer for Low Temperature Solid Oxide Fuel Cell, Low Temperature Direct Methanol Fuel Cell With YSZ Electrolyte. 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. A thin layer of fast degrading 50/50PLGA was placed as the diffusion layer between the 85/15PLGA layers to prevent any burst-type release. He is a board member of National Research Council Committee. The tubular MEAs are nominally 5 m long and have <500 nm outside diameter with total MEA thickness of nearly 50 nm. Comparison of the experiments to the simulated results identified that the variation of micro-geometry influenced also the volume-dependent degradation rate and induced the osmotic pressure. Buie, C. R., BANIN, Y., Tang, C. Y., Santiago, J. G., Prinz, F. B., Pruitt, B. L. Finding narrow passages with Probabilistic Roadmaps: The small-step retraction method. Fasching, R. J., Tao, Y., Hammerick, K., Prinz, F. B. Crabb, K., M., Park, J., S., Chao, C. -C., Prinz, F., B. Dopant-Induced Electronic Structure Modification of HOPG Surfaces: Implications for High Activity Fuel Cell Catalysts. Prinz, F., B., Kohl, F., Fasching, R., Urban, G., Steurer, J., Olcaytug, F. A measurement algorithm for capacitive speed encoder with a modified front-end topology , Instrumentation and Measurement, Material Strength in Polymer Shape Deposition Manufacturing Proceedings of the Solid Freeform Fabrication Symposium, Optimal motion planning for deposition in layered manufacturing, A robust capacitive angular speed sensor, Instrumentation and Measurement, Thin film thermo-mechanical sensors embedded in metallic structures, Process planning and automation for additive-subtractive solid freeform fabrication, Automated fabrication of complex molded parts using mold SDM. Ms. Fong holds a B.S. Atomic layer deposition of SrO was tested with Sr(tmhd)2 and Sr(PrMe(4)Cp)2 and oxygen, ozone, and water as oxygen sources. QuantumScape was founded in 2010 by Jagdeep Singh, Tim Holme and Professor Fritz Prinz of Stanford University. Tim Holme is the Co-Founder and Chief Technology Officer of QuantumScape, a leading developer of solid-state lithium-metal batteries, designed to enable greater energy density, faster charging and enhanced safety to support the transition away from legacy energy sources. Chao, C., Park, J. S., Tian, X., Shim, J. H., Guer, T. M., Prinz, F. B. Spatial Variation of Available Electronic Excitations within Individual Quantum Dots. On the other hand, for samples with strip-and disk-shaped surface potential inhomogeneities, we have obtained quantitative expressions for the detectability size requirements as a function of experimental conditions for both AM-and FM-EFMs, which suggest that a larger tip radius of curvature is moderately favored for detecting the presence of such inhomogeneities. Previous studies of osteogenic potential in ASCs have focused on chemicals, growth factors, and mechanical stimuli. Novel Technologies for the Assembling of ASIC's and MEMS, Current Developments of Microelectronics, Seminar organized by the society for microelectronics. Shim, J. H., Park, J. S., Holme, T. P., Crabb, K., Lee, W., Kim, Y. Transmission electron microscope (TEM) observations revealed the optimized number of ALD cycles of Pt for the catalytic electrode, which renders both contiguity and high triple-phase boundary (TPB) density. Kroo, I., Prinz, F., Leitgeb, R., Cheng, Y., L. Automated layer decomposition for additive/subtractive Solid Freeform Fabrication. from Vanderbilt University Law School. Dasgupta, N. P., Walch, S. P., Prinz, F. B. Huang, H., Shim, J., H., Chao, C., C., Pornprasertsuk, R., Sugawara, M., Gr, T., M., Prinz, F. B. In-Plane Conductivities of Atomic Layer Deposited Yttria-Stabilized Zirconia Electrolytes for Solid Oxide Fuel Cells. Evidence of Proton Transport in Atomic Layer Deposited Yttria-Stabilized Zirconia Films. Komadina, J., Kim, Y. The observed enhancement in cell performance is believed to be due to the increased triple phase boundary (TPB) density in the cermet interlayer. 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. Nickel, A., BARNETT, D., Link, G., Prinz, F. Reducing part: Deformation by inducing phase transformation. We used atomic force microscopy as a tool to determine stem cell stiffness, and hence differences in material properties between cells. However, bFGF is degraded quickly in vivo and difficulty of controlling the dose level impedes its effective use in angiogenesis and tissue regeneration. In this paper, we describe the design of the tool and demonstrate its capability for atomic resolution STM imaging, atomic layer deposition, and the combination of the two techniques for in situ characterization of deposition. Bai, S., Fabian, T., Prinz, F. B., Fasching, R. J. Prinz, F., B., Zhou, Y., Holme, T., Berry, J., Ohno, T., Ginley, D. First principles study of doped carbon supports for enhanced platinum catalysts. Maximum power densities of the corrugated fuel cells of 677 mW/cm2 and 861 mW/cm2 were obtained at 400 and 450 degrees C, respectively. A combined scanning tunneling microscope-atomic layer deposition tool. On September 3, 2020, QuantumScape announced an agreement to merge with the blank check special purpose acquisition company (SPAC) company Kensington Capital Acquisition Corp. Galvanotaxis is one predominant result of electric fields on mASCs and it may be exploited to engineer adult stem cell concentrations and locations within implanted grafts or toward sites of wound repair. Investigation of transport phenomena in micro flow channels for miniature fuel cells. Park, J. S., Kim, Y. Su, P., Chao, C., Shim, J. H., Fasching, R., Prinz, F. B. The future is solid. When Singh founded QuantumScape with Fritz Prinz and Tim Holme in 2010, he didn't know if that material existed. Dong, J. P., Kao, J. H., Pinilla, J. M., Chang, Y. C., Prinz, F. B. Xu, S., Thian, D., Wang, S., Wang, Y., Prinz, F. B. Nanostructuring Materials for Solar-to-Hydrogen Conversion, MEMS-based thin-film solid-oxide fuel cells. Bai, S., Ryu, W., Fasching, R. J., Grossman, A. R., Prinz, F. B. Cup-shaped yttria-doped barium zirconate membrane fuel cell array, Improved Solid Oxide Fuel Cell Performance with Nanostructured Electrolytes, Nonprecious Metal Catalysts for Low Temperature Solid Oxide Fuel Cells, Enhancing Oxide Ion Incorporation Kinetics by Nanoscale Yttria-Doped Ceria interlayers, Crater patterned 3-D proton conducting ceramic fuel cell architecture with ultra thin Y:BaZrO3 electrolyte. The calculations attribute the catalytic activity changes primarily to changes in the workfunction and secondarily to the d-band structure of supported Pt particles. We found smaller values of the lowest available transition energies and an increased density of electronic states in the space between quantum dots with shorter interparticle spacing, indicating extension of carrier wave functions as a result of interparticle electronic coupling. Back in 2010, tech entrepreneur Jagdeep Singh and Stanford professor Fritz Prinz founded QuantumScape. Xu, S., Dadlani, A. L., Acharya, S., Schindler, P., Prinz, F. B. Plasma-enhanced atomic layer deposition of BaTiO3. Provine, J., Schindler, P., Kim, Y., Walch, S. P., Kim, H. J., Kim, K., Prinz, F. B. Atomically Flat Silicon Oxide Monolayer Generated by Remote Plasma. The stiffness differences are not dependent on cell culture density; hence, material differences between cells cannot be attributed solely to cell-cell constraints. Prinz, F., B., Fasching, R., Aschauer, E., Urban, G. Surface characterization of thin film platinum electrodes applied for biosensors by means of cyclic voltammetry and laser - SNMS. 3D Microfluidic Approach to Mechanical Stimulation of Osteocyte Processes. Application of atomic layer deposition of platinum to solid oxide fuel cells. 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. Mr. Singh is QuantumScapes Chief Executive Officer and Chairman of the Board of Directors. This work demonstrates the kinetic role of 2 nm thin YSZ/Pt cermet layers on enhancing the oxygen reduction kinetics for low temperature solid oxide fuel cells. Two barrier materials were selected based on barrier height: aluminum oxide as a high barrier material and zinc oxide as a low barrier material. Ryu, W., Bai, S., Park, J. S., Huang, Z., Moseley, J., Fabian, T., Fasching, R. J., Grossman, A. R., Prinz, F. B. For precise control of the cell distribution within the microstructured scaffolds a high precision microsieve structure was designed to localize rat hepatocytes and human articular chondrocytes in the biodegradable polymers.
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