In all respects, the findings agree with experiment. View details for Web of Science ID 000330163100003, View details for Web of Science ID 000330158900093, View details for DOI 10.1016/j.tsf.2013.05.092, View details for Web of Science ID 000321111100029, View details for DOI 10.1016/j.actamat.2013.03.027, View details for Web of Science ID 000319304400032. Approaching the limits of dielectric breakdown for SiO2 films deposited by plasma-enhanced atomic layer deposition. From September 1997 to April 2003, Mr. McCarthy served as Senior Vice President and General Counsel of Ciena Corporation, a network strategy and technology company. Chang, Y. Water Management at the Cathode of a Planar Air-Breathing Fuel Cell with an Electroosmotic Pump. Effects of surface chemistry and microstructure of electrolyte on oxygen reduction kinetics of solid oxide fuel cells. QuantumScape was founded in 2010 to create a battery that doesn't make compromises and after a decade of hard work, we've built a technology that enables the fast charging, long-lasting and safer batteries required to power zero-emissions transportation. Liu, H. C., Lee, S., Kang, S., Edwards, C. F., Prinz, F. B. AC Impedance Investigation of Transport Phenomena in Micro Flow Channels in Fuel Cells. 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. Also, individual contributions both from oxygen column occupancy and the static displacement of oxygen atoms due to occupancy change to the observed column intensities of TEM images were systematically investigated using HRTEM simulation. A programmable and biodegradable drug delivery device is desirable when a drug needs to be administered locally. QuantumScape was founded in 2010 by Jagdeep Singh, Fritz Prinz, and Tim Holme from Stanford University. The proposed devices consist of three functional layers: diffusion control layer via micro-orifices, diffusion layer, and drug reservoir layers. Li, X. C., Johnsen, J., Groza, J., Prinz, F. Rapid prototyping and manufacturing by gelcasting of metallic and ceramic slurries. Cooper, A., G., Pinilla, J., M., Kao, J., Prinz, F., B. Trejo, O., Roelofs, K. E., Xu, S., Logar, M., Sarangi, R., Nordlund, D., Dadlani, A. L., Kravec, R., Dasgupta, N. P., Bent, S. F., Prinz, F. B. As regenerative therapies continue to explore ways to control mesenchymal progenitor cells to recreate desirable tissues, it is increasingly necessary to characterize the vast nature of biological responses imposed by physical phenomena. Prinz, F., B., Aschauer, E., Fasching, R., Varahram, M., Jobst, G., Urban, G. Shape deposition manufacturing of heterogeneous structures. 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. 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. A variety of metals can be chosen as the tip material. Langston, M. C., Dasgupta, N. P., Jung, H. J., Logar, M., Huang, Y., Sinclair, R., Prinz, F. B. Thickness effects of yttria-doped ceria interlayers on solid oxide fuel cells, Nickel Silicide Nanowire Arrays for Anti-Reflective Electrodes in Photovoltaics. Back in 2010, tech entrepreneur Jagdeep Singh and Stanford professor Fritz Prinz founded QuantumScape. To study EFM measurements on bimetallic samples with surface potential inhomogeneities as a special case, we have simulated such measurements using the boundary element method and calculated the force component and force gradient component that would be measured by amplitude modulation (AM) EFM and frequency modulation (FM) EFM, respectively. O'Hayre, R., Lee, S. J., Cha, S. W., Prinz, F. B. Capacitive blade tip clearance measurements for a micro gas turbine. 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. View details for Web of Science ID 000288061500003, View details for DOI 10.1103/PhysRevB.83.052301, View details for Web of Science ID 000287358900001. Product Solid-state battery Local accumulation and dissipation of charges on the surface of oxide ion conductors resulting from electric potentials were observed with conductive atomic force microscopy (AFM). Ryu, W., Hammerick, K. E., Kim, Y. This is made possible by nanostructuring of the ultrathin (60 nm) electrolyte interposed with a nanogranular catalytic interlayer at the cathode/electrolyte interface. Pamela Fong is QuantumScapes Chief of Human Resources Operations, leading people strategy and operations, including talent acquisition, organizational development and employee engagement. One NW can be selected to remain by focused ion beam technique. 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. Exploring the local electronic structure and geometric arrangement of ALD Zn(O,S) buffer layers using X-ray absorption spectroscopy. 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. Solvent-vapor based bonding of micro-molded layers preserved 20 microm sized structures. The use of H(2)S in an ALD reactor requires special attention to safety issues due to its highly toxic, flammable, and corrosive nature. Plasma-induced crystallization presented in this work may have an immediate impact on fabricating and manufacturing DRAM capacitors due to its simplicity and compatibility with industrial standard thin film processes. Enhancing ionic conductivity of bulk single-crystal yttria-stabilized zirconia by tailoring dopant distribution, Elastic Properties of Induced Pluripotent Stem Cells. Huang, H., Nakamura, M., Su, P., Fasching, R., Saito, Y., Prinz, Fritz, B. B., Park, J. S., Guer, T. M., Prinz, F. B. QuantumScape was worth $54 billion on the stock market shortly after it went public in 2020. Huang, H., Holme, Tim, P., Prinz, Fritz, B. View details for Web of Science ID 000270670500043, View details for Web of Science ID 000269485300008, View details for Web of Science ID 000268174400038. Use of a high-flow diaphragm valve in the exhaust line of atomic layer deposition reactors, Patterned Silver Nanomesh Cathode for Low-Temperature Solid Oxide Fuel Cells. Fabian, T., Posner, J. D., O'Hayre, R., Cha, S., Eaton, J. K., Prinz, F. B., Santiago, J. G. High ionic conductivity in ultrathin nanocrystalline gadolinia-doped ceria films. Prinz, F., B., Fasching, R., Keplinger, F., Kohl, F. Impact of axial and radial rotor offset on the measurtement error of a capacitive angular-position sensor with modofied front-end topology,Instrumentation and Measurement Technology Conference,IMTC/99. 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. Wang, H., Lu, Z., Xu, S., Kong, D., Cha, J. J., Zheng, G., Hsu, P., Yan, K., Bradshaw, D., Prinz, F. B., Cui, Y. However, three-dimensional (3-D) fabrication of tissue scaffolds containing complex microarchitectures still remains a challenge. Kim, Y. O'Hayre, R., Barnett, D. M., Prinz, F. B. Fuel Cells for Intermediate Temperature Operation. A microfabricated direct methanol fuel cell with integrated electroosmotic pump. Park, J. S., Holme, T. P., Shim, J. H., Prinz, F. B. View details for Web of Science ID 000266093700034, View details for Web of Science ID 000268803300024, View details for Web of Science ID 000337731900001, View details for Web of Science ID 000337724700103, View details for Web of Science ID 000337724700111, View details for Web of Science ID 000337731900031, View details for Web of Science ID 000280345900490, View details for Web of Science ID 000265837900031, View details for Web of Science ID 000280345900456, View details for Web of Science ID 000271218900019, View details for Web of Science ID 000270133400050, View details for Web of Science ID 000268405400043, View details for Web of Science ID 000280345900274, View details for DOI 10.1016/j.ssi.2007.12.100, View details for Web of Science ID 000259276200058. O'Hayre, R., Feng, G., Nix, W. D., Prinz, F. B. LayTracks: a new approach to automated geometry adaptive quadrilateral mesh generation using medial axis transform. The researchers are developing solid-state batteries for EVs and other uses in industry. Mechanical masking of films deposited by atomic layer deposition, Surface-Modified Low-Temperature Solid Oxide Fuel Cell. Park, J. S., Kim, Y., An, J., Prinz, F. B.
PDF CORPORATE FACT SHEET - QuantumScape The methodology and the high spatial resolution characterization tool employed in the present study provide insights into the distribution of oxygen vacancies in the bulk as well as near grain boundaries and pave the way for further investigation and atomic-scale analysis in other important oxide materials. Prinz, F., B., Weiss, L., Amon, C., Beuth, J. CNC Cutter Path Generation in Shape Deposition Manufacturing. The porous-template technique can produce NWs of various kinds of metals, with diameters down to 10-20 nm, which compete with multiwall carbon nanotube diameters. When Singh founded QuantumScape with Fritz Prinz and Tim Holme in 2010, he didn't know if that material existed. Cooper, A., G., Kang, S., Stampfl, J., Prinz, F., B. 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. Effects of Ion Irradiation on the Performance of Solid Oxide Fuel Cells. The diketonate precursors have stronger bonds to the metals than the Cp precursors, but weaker bonds within the ligand, explaining the carbon contamination found in experimentally grown films. Cheng, J., Pornprasertsuk, R., Saito, Y., Prinz, F. B. Silver Nanomesh as a Cathode for Solid Oxide Fuel Cells. Here we report a 3-D biodegradable microscaffolding (3D-BMS) technology and its process characterization as well as a microscale cellular loading technology as an efficient way to massively populate biodegradable polymers with cells at single cell resolution. Combined Heat and Mass Transfer Model of a Passive Air Breathing Fuel Cell Cathode. This enhancement of OER activity for TiO2:Co NWs is attributed to both improved surface charge transfer kinetics and increased bulk conductivity. Electric potentials of NWs at the probe tip can be measured.
Tim Holme | ENERGY - Stanford University Motoyama, M., Chao, C., Guer, T. M., Prinz, F. B. Epitaxial and Polycrystalline Gadolinia-Doped Ceria Cathode Interlayers for Low Temperature Solid Oxide Fuel Cells.
QuantumScape's Battery Technology Is Huge for EVs. Here's a Primer. The photocathodic hydrogen evolution reaction (HER) from p-type Si nanowire (NW) arrays was evaluated using platinum deposited by atomic layer deposition (ALD) as a HER cocatalyst. View details for PubMedCentralID PMC3775093. Cha, S. W., O'Hayre, R., Saito, Y., Prinz, F. B. Analytical and experimental study on noncontact sensing with embedded fiber-optic sensors in rotating metal parts, Ionic and electronic impedance imaging using atomic force microscopy, RP of Si3N4 burner arrays via assembly mould SDM. Park, Y. I., Cha, S. W., Saito, Y., Prinz, F. B. With 400 employees, the company is working on next-generation technologies that will accelerate the adoption of electric vehicles around the world. Jagdeep Singh, Tim Holme and Fritz Prinz, a trio from Stanford University, formed the company in 2010. He has a clear opinion about the e-mobility transition. The method emphasizes micro-fluidic interconnections between layers within the scaffolds and maintenance of high-resolution geometries during the bonding process for the creation of multi-layered scaffolds. For more information, please visit www.quantumscape.com . Photoluminescence measurements on the quantum dot/nanowire composites show a blue shift when the number of ALD cycles is decreased, suggesting a route to fabricate unique three-dimensional nanostructured devices such as solar cells. We found that 180 cycles or approximately 10 nm of ALD Pt, with a Pt loading of only 0.02 mg cm(-2), were sufficient for the purpose of a catalytic cathode. 8-K 001-39345 10.11 December 2, 2020 4.7 QuantumScape Corporation 2020 Employee Stock Purchase Plan 8-K 001 . This result may represent an initial step in generating "high efficiency" bioelectricity by directly harvesting high energy photosynthetic electrons. An, J., Bae, J., Hong, S., Koo, B., Kim, Y., Guer, T. M., Prinz, F. B. Stream Pietro Mascagni - L'Amico Fritz, piano - Oliveira - Titinger - Lago - So Paulo - 2016 by Jorge Coli on desktop and mobile. To lower the SOFC operating temperature, we fabricated a corrugated thin-film electrolyte membrane by nanosphere lithography and atomic layer deposition to reduce the polarization and ohmic losses at low temperatures. Komadina, J., Walch, S., Fasching, R., Grossman, A., Prinz, F. B. We attribute the superior cell performance to significant reduction in both the ohmic and the polarization losses due to the combined effects of employing an ultrathin film electrolyte, enhancement of effective area by 3-D architecture, and superior catalytic activity by the ceria-based interlayer at the cathode. 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.
QuantumScape's CEO Explains His Solid-State Battery Breakthrough Effect of cation non-stoichiometry and crystallinity on the ionic conductivity of atomic layer deposited Y:BaZrO3 films. Prinz, F., B., Zhou, Y., Holme, T., Berry, J., Ohno, T., Ginley, D. First principles study of doped carbon supports for enhanced platinum catalysts. Correlation of film density and wet etch rate in hydrofluoric acid of plasma enhanced atomic layer deposited silicon nitride. Mr. McCarthy holds a B.A. The tubular MEAs are nominally 5 m long and have <500 nm outside diameter with total MEA thickness of nearly 50 nm. Walch, S. P., Komadina, J. D., Prinz, F. B. To investigate differences between two iPS cell lines (fibroblast-iPSC and hASC-iPSC), and also the gold standard human embryonic stem cell, we looked at cell stiffness as a possible indicator of cell differentiation-potential differences. We show significant oxygen deficiency due to segregation of oxide-ion vacancies near the grain-boundary core with half-width < 0.6nm. Hartmann, K., Krishnan, R., Merz, R., Neplotnik, G., Prinz, F., Schultz, L. Creating an Advanced Collaborative Open Resource Network. Yttria-stabilized zirconia (YSZ) electrolyte membranes were surface modified by adding a 1 nm thin, high-yttria concentration YSZ film with the help of atomic layer deposition. Park, J. S., Kim, Y. Improving solid oxide fuel cells with yttria-doped ceria interlayers by atomic layer deposition. Liu, H. C., Tsuru, H., Cooper, A. G., Prinz, F. B. Capacitive sensor for active tip clearance control in a palm-sized gas turbine generator, Gas-tight alumina films on nanoporous substrates through oxidation of sputtered metal films. A $43 billion lab.
MATH CONSULTORIA MED TRABALHO - Occupational Therapy - R. Doutor Fritz QS Stock Forecast, Price & News (QuantumScape) - MarketBeat High performance Bi-layered electrolytes via atomic layer deposition for solid oxide fuel cells. Fritz Prinz Director. An, J., Koh, A. L., Park, J. S., Sinclair, R., Guer, T. M., Prinz, F. B. Connecting decision makers to a dynamic network of information, people and ideas, Bloomberg quickly and accurately delivers business and financial information, news and insight around the world.
Quantumscape CEO and key executive team | Craft.co QuantumScape: Building The Battery Of The Future - SeekingAlpha Laser-SNMS depth profiling of thin film multilayers: study of a Pt-Ti biosensor for glucose detection. O'Hayre, R., Fabian, T., Litster, S., Prinz, F., B., Santiago, J., G. Biodegradable Micro-Fluidic Sheet-Devices for Programmed Drug Release. Holme, T. P., Pornprasertsuk, R., Prinz, F. B. Lee, W., Jung, H. J., Lee, M. H., Kim, Y., Park, J. S., Sinclair, R., Prinz, F. B. Nanoscale membrane electrolyte array for solid oxide fuel cells, Enhanced oxygen exchange and incorporation at surface grain boundaries on an oxide ion conductor. In the case of tmhd and Cp precursors, the energy required to break bonds in the precursor ligand was studied to evaluate the most likely mechanism of carbon incorporation into the film. Prior to joining QuantumScape, he was the Chief Administrative Officer at Infinera Corporation from April 2003 to March 2013. Atomic Layer Deposition of Al-doped ZnO Films: Effect of Grain Orientation on Conductivity. 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. Chao, C., C., Park, J., S., Prinz, F., B. This study presents atomic scale characterization of grain boundary defect structure in a functional oxide with implications for a wide range of electrochemical and electronic behavior. A typical issue with these oxide electrolytes is sluggish oxygen surface kinetics at the gas-electrolyte interface. Batteries Move From Labs to Mass Production, Bloomberg, QuantumScape CEO on the Evolution of EV Batteries. Frank Blome Independent Director. Mr. Hettrich is QuantumScapes Chief Financial Officer. B., Kim, J. Atomic Layer Deposited Yttria Stabilized Zirconia Barrier Layer for Proton Conducting Oxide (Invited). The Air/Platinum/Nafion triple-phase boundary: Characteristics, scaling, and implications for fuel cells, Ion irradiation effects in solid oxide fuel cell electrolytes. Damage in yttria-stabilized zirconia by Xe irradiation measured by X-ray diffraction, The triple phase boundary - A mathematical model and experimental investigations for fuel cells. 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. In this work, ultra-thin (10 nm) platinum (Pt) cathode/catalyst layers were patterned by atomic layer deposition (ALD) and tested as catalytic electrodes (cathode) for low-temperature solid oxide fuel cells. View details for Web of Science ID 000276557100007. The stiffness differences are not dependent on cell culture density; hence, material differences between cells cannot be attributed solely to cell-cell constraints. 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the Advancement of Science (AAAS) (2007), Woodruff Colloquium in the Theme of Energy, Georgia Institute of Technology, Atlanta, GA (2008), Munushian Lecture, University of Southern California (2009), PhD, University of Vienna, Physics (1975), Department: Materials Science and Engineering, NPL Affiliate Program Manager, NPL Administrator, Plasma-enhanced atomic layer deposition of tungsten nitride.