Effect of High Surface Area Pd Electrodes on SOFC Performance at 350 degrees C. Komadina, J., Motoyama, M., Kim, Y. Pornprasertsuk, R., Kosasang, O., Somroop, K., Jinawath, S., Prinz, F. B. 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. Previous studies of osteogenic potential in ASCs have focused on chemicals, growth factors, and mechanical stimuli. Residual stresses in layered manufacturing. Ultra-sharp High-aspect-ratio Probe Array for SECM and AFM Analysis. Engineering model of a passive planar air breathing fuel cell cathode. Prinz, F., B., Fasching, R., Urban, G., Aschauer, E., Jachimowicz, A., Kohl, F. OPTIMAL PATH PLACEMENT FOR KINEMATICALLY REDUNDANT MANIPULATORS. Improving solid oxide fuel cells with yttria-doped ceria interlayers by atomic layer deposition. Brad Buss . Privacy Policy | Terms of Use 2022 QuantumScape Corporation1730 Technology Drive, San Jose, CA [email protected]. Atomic Layer Deposited Yttria Stabilized Zirconia Barrier Layer for Proton Conducting Oxide (Invited). 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. In 2018, Volkswagen invested $100 million in the company, becoming the largest shareholder. 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. Parquia Santa Rita de Cssia in So Paulo, reviews by real people. Dr. Holme holds a B.S. We have carried out calculations of the electronic structure of ferredoxin and of the electronic coupling matrix element Hif for electron transfer from reduced ferredoxin to flavin adenine dinucleotide (FAD) and to cluster models of the Au111 surface and a Au111 surface with a mercaptopyridene self-assembled monolayer (SAM). In this role, he oversees advanced materials research, technical product development, machine learning, and intellectual . Active water management for proton exchange membrane fuel cells using an integrated electroosmotic pump. in Physics, a M.S. Lee, S. J., Cha, S. W., O'Hayre, R., Chang-Chien, A., Prinz, F. B. B., Park, J. S., Prinz, F. B. Band gap measurements were carried out by STS, and an effective mass theory was developed to compare the experimental results. Insider Purchases QS / Quantumscape Corp - Short Term Profit Analysis. Kim, Y. Ryu, W., Hammerick, K. E., Kim, Y. Efficiency enhancement of solid-state PbS quantum dot-sensitized solar cells with Al2O3 barrier layer. An, J., Kim, Y., Gr, T. M., Prinz, F. B. Variation of Energy Density of States in Quantum Dot Arrays due to Interparticle Electronic Coupling. INCREASED CATHODIC KINETICS IN IT-SOFCs BY INSERTING HIGHLY-CONDUCTIVE NANOCRYSTALLINE MATERIALS, Opportunities of ALD for Thin Film Solid Oxide Fuel Cells, Oxidative Removal of Self-Assembled Monolayers for Selective Atomic Layer Deposition. The electric fields caused marked changes in the cytoskeleton. B., Guer, T. M., Kang, S., Jung, H., Sinclair, R., Prinz, F. B. Fasching, R. J., Bai, S., Fabian, T., Prinz, F. B. Thin-film solid oxide fuel cells on porous nickel substrates with multistage nanohole array. 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. Cheng, J., Pornprasertsuk, R., Saito, Y., Prinz, F. B. Prinz, F., B., Fasching, R., Olcaytug, F., Schalko, J., Ebel, H., Gazicki, M. Layered manufacturing material issues for SDM of polymers and ceramics. Significantly, we show that flame reduction greatly improves the saturation photocurrent densities of TiO2 nanowires (2.7 times higher), -Fe2O3 nanowires (9.4 times higher), ZnO nanowires (2.0 times higher), and BiVO4 thin film (4.3 times higher) in comparison to untreated control samples for PEC water-splitting applications. ENERGY TRANSFER BETWEEN QUANTUM DOTS OF DIFFERENT SIZES FOR QUANTUM DOT SOLAR CELLS, Kinetic Monte Carlo Simulations of Solid Oxide Fuel Cell. Atomic Layer Deposited Yttria Stabilized Zirconia Barrier Layer for Proton Conducting Oxide. Tissues such as skin, blood vessels, and cartilage have multi-layer structures with different cells in each layer. Development of portable fuel cell arrays with printed-circuit technology. Prinz, F., B., Aschauer, E., Fasching, R., Urban, G., Nicolussi, G., Husinsky, W. ROBOT-ASSISTED SHAPE DEPOSITION MANUFACTURING. 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. We used atomic force microscopy-based force spectroscopy to record an increase in the cytoskeletal tension after treatment with electric fields. Park, J. S., Kim, Y., An, J., Prinz, F. B. Play over 265 million tracks for free on SoundCloud. Dr. Holme is QuantumScapes Chief Technology Officer. We have built a combined scanning tunneling microscope-atomic layer deposition (STM-ALD) tool that performs in situ imaging of deposition. Design of heterogeneous catalysts and the application to the oxygen reduction reaction, Improving PEM fuel cell catalyst activity and durability using nitrogen-doped carbon supports: observations from model Pt/HOPG systems. 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. Headquartered in San Jose, California, the company is currently worth $ 50 billion and is funded by Bill Gates and Volkswagen. Additionally, their galvanotactic response appears to share classic chemotactic signaling pathways that are involved in the migration of other cell types. Usui, T., Dasgupta, N. P., Jiang, X., Lee, W., Prinz, F. B. Electron energy loss spectroscopy measurements with scanning TEM indicated increased oxide-ion vacancy concentration at the grain boundary core. An, J., Bae, J., Hong, S., Koo, B., Kim, Y., Guer, T. M., Prinz, F. B. 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. 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. Prinz, F., B., Litster, S., Buie, C., R., Fabian, T., Eaton, J., K., Santiago, J., G. Oxygen Reduction Characteristics on Ag, Pt, and Ag-Pt Alloys in Low-Temperature SOFCs. There are numerous sources of bioenergy that are generated by photosynthetic processes, for example, lipids, alcohols, hydrogen, and polysaccharides. Prinz, F., B., Fasching, R., Kohl, F., Urban, G., Jobst, G., Keplinger, F. NEXT GENERATION MANUFACTURING TASK PLANNER FOR ROBOTIC ARC-WELDING. Shim, J. H., Kang, S., Cha, S., Lee, W., Kim, Y. Hammerick, K. E., Longaker, M. T., Prinz, F. B. View details for Web of Science ID 000291322600002, View details for DOI 10.1016/j.elecom.2011.02.004, View details for Web of Science ID 000290741500006. Cell suspensions were passed at a predetermined flow rate through biodegradable polymer layers that contained tapered microholes in a massively parallel process. Torgersen, J., Acharya, S., Dadlani, A. L., Petousis, I., Kim, Y., Trejo, O., Nordlund, D., Prinz, F. B. Oscillatory barrier-assisted Langmuir-Blodgett deposition of large-scale quantum dot monolayers. This system affords easy AFM access and allows for maintenance of the cells in a well-defined chemical environment, which sustains their biological activity. Increased Cathodic Kinetics on Platinum in IT-SOFCs by Inserting Highly Ionic-Conducting Nanocrystalline Materials, In vitro effects of direct current electric fields on adipose-derived stromal cells. Solid Oxide Fuel Cells with Atomic Layer Deposited Platinum Catalyst, Geometric Effects at Triple Phase Boundary in Solid Oxide Fuel Cells. Bae, J., Hong, S., Koo, B., An, J., Prinz, F. B., Kim, Y. Using such nanofilms after different degree of Li intercalation, we show the significant improvement of the hydrogen evolution reaction activity. Enhanced oxygen exchange on surface-engineered yttria-stabilized zirconia. Wang, H., Lu, Z., Xu, S., Kong, D., Cha, J. J., Zheng, G., Hsu, P., Yan, K., Bradshaw, D., Prinz, F. B., Cui, Y. The quantitative exploration of the lower limits of Pt cocatalyst loading reported here, and its application to high-surface-area NW photoelectrodes, establish a general approach for minimizing the cost of precious-metal cocatalysts for efficient and affordable solar-to-fuel applications. Atomic Scale Verification of Oxide-Ion Vacancy Distribution near a Single Grain Boundary in YSZ. The sol-flame doping method not only preserves the morphology and crystallinity of the TiO2 NWs, but also allows fine control over the Co dopant profile by varying the concentration of Co precursor solution. 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. Pt) are one of the main contributors to low-temperature (<500 C) fuel cell costs, significant efforts have been made to lower the noble metal loading in constructing fuel cell electrodes. Shim, Joon, H., Cha, S. W., Gr, Turgut, M., Prinz, F., B. Mr. McCarthy has served as QuantumScapes Chief Legal Officer and Head of Corporate Development since March 2013. View details for Web of Science ID 000270670500043, View details for Web of Science ID 000269485300008, View details for Web of Science ID 000268174400038. The results demonstrate that electrolyte surface engineering with ALD can have a meaningful impact on the performance of electrochemical devices. Amon, C. H., Beuth, J. L., Weiss, L. E., Merz, R., Prinz, F. B. 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. Interlayering 17.5 nm of Yttria-doped ceria (YDC) thin films between bulk yttria-stabilized-zirconia electrolyte and a porous Pt cathode enhanced the performance of low-temperature solid oxide fuel cells. 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. Shim, J. H., Kim, Y. Electrical properties of YSZ thin films deposited on nanoporous substrates. Influence of the grain size of samaria-doped ceria cathodic interlayer for enhanced surface oxygen kinetics of low-temperature solid oxide fuel cell. We ascribe such improvements to the crystallization and densification of the film induced by high-energy ion bombardments on the film surface during the plasma treatment. 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. EV battery startup QuantumScape starts shipping prototype to automakers, a key milestone, CNBC, Battery Insiders Reflection Batteries, Data & Solid-State, Battery Associates, How VW Can Leap Over Tesla: QuantumScape CEO Interview, E For Electric, SAE Tomorrow Today, Transforming EV Batteries with Solid-State Energy, The New York Times, Advanced E.V. Trends for Ba and Sr followed each other closely, reflecting the similar chemistry among alkaline earth metals. Prinz, F., B., Gowrishankar, V., Hutton, D., Fluhrer, C., Dasgupta, N. Water Removal from Proton Exchange Membrane Fuel Cells via Electroosmotic Pumping. Highly oriented pyrolytic graphite (HOPG) implanted with N, Ar and B is studied as a support for platinum nanoparticle catalysts for fuel cells. Subnanometer-resolved local electron energy structure was measured in PbS quantum dot superlattice arrays using valence electron energy loss spectroscopy with scanning transmission electron microscopy. Because noble metal catalysts (e.g. 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. Logar, M., Xu, S., Acharya, S., Prinz, F. B. Cha, S. W., O'Hayre, R., Lee, S. J., Saito, Y., Prinz, F. B. Enhanced Oxygen Exchange on Surface-Engineered Yttria-Stabilized Zirconia. 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. Prinz, F., B., Zhou, Y., Holme, T., Berry, J., Ohno, T., Ginley, D. First principles study of doped carbon supports for enhanced platinum catalysts. Oxygen activation over engineered surface grains on YDC/YSZ interlayered composite electrolyte for LT-SOFC. Schindler, P., Logar, M., Provine, J., Prinz, F. B. Ryu, W., Huang, Z., Prinz, F. B., Goodman, S. B., Fasching, R. Fabrication of multi-layered biodegradable drug delivery device based on micro-structuring of PLGA polymers. Endogenous electric fields play an important role in embryogenesis, regeneration, and wound repair and previous studies have shown that many populations of cells, leukocytes, fibroblasts, epithelial cells, and endothelial cells, exhibit directed migration in response to electric fields. However, the high operating temperatures of current SOFCs limit their adoption in mobile applications. The addition of the 1 nm film led to an increase of the maximum power density of a low-temperature solid oxide fuel cell (LT-SOFC) by a factor of 1.50 at 400 degrees C. The enhanced performance can be attributed to an increased oxide ion incorporation rate on the surface of the modified electrolyte. Water management in proton exchange membrane fuel cells using integrated electroosmotic pumping. Ryu, W., H., Fasching, R., Hammerick, K., Min, S., Prinz, F., B. However, the barrier to electron transfer in the strong coupling limit is computed to be small due to minimal geometry change between oxidized and reduced ferredoxin. 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 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. Kim, Y., Provine, J., Waich, S. P., Park, J., Phuthong, W., Dadlani, A. L., Kim, H., Schindier, P., Kim, K., Prinz, F. B. 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. Chao, C., C., Park, J., S., Prinz, F., B. View details for Web of Science ID 000313149800053, View details for DOI 10.1016/j.ssc.2012.09.019, View details for Web of Science ID 000312238200010, View details for Web of Science ID 000313769300012, View details for Web of Science ID 000311190800041, View details for DOI 10.1016/j.jpowsour.2012.06.103, View details for Web of Science ID 000309038100030, View details for DOI 10.1002/adfm.201200398, View details for Web of Science ID 000308329800015, View details for DOI 10.1088/0965-0393/20/6/065006, View details for Web of Science ID 000308251800006, View details for Web of Science ID 000314592100008, View details for Web of Science ID 000306748000089, View details for DOI 10.1007/s12541-012-0170-8, View details for Web of Science ID 000305804200038, View details for DOI 10.1557/mrs.2012.145, View details for Web of Science ID 000306367300013, View details for DOI 10.1002/aenm.201200002, View details for Web of Science ID 000305179000006, View details for DOI 10.1002/adfm.201101996, View details for Web of Science ID 000300931500008, View details for DOI 10.1016/j.elecom.2011.12.002, View details for Web of Science ID 000301617200020, View details for DOI 10.1016/j.actamat.2011.09.050, View details for Web of Science ID 000297822300001, View details for Web of Science ID 000316017000005, View details for Web of Science ID 000298992800061, View details for Web of Science ID 000298992800010, View details for Web of Science ID 000307714100010, View details for Web of Science ID 000298992800053, View details for DOI 10.1002/adfm.201101058, View details for Web of Science ID 000298017900010, View details for DOI 10.1016/j.jpowsour.2011.08.075, View details for Web of Science ID 000296928100002. Ms. Fong holds a B.S. 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. View details for DOI 10.1016/j.jconrel.2007.08.024. B., Park, J. S., Shim, J. H., Guer, T. M., Prinz, F. B. Atomic Layer Deposition of Mixed Conducting Cathodes for Solid Oxide Fuel Cells, Fabrication and Characterization of Lead Sulfide Thin Films by Atomic Layer Deposition". in Business Administration from U.C. Local delivery of basic fibroblast growth factor (bFGF) over a specific dose and time course is critical for mesenchymal tissue regeneration. These cells have great promise for many clinical applications, including that of regenerative medicine. A Computational Comparison of Electron Transfer from Reduced Ferredoxin to Flavin Adenine Dinucleotide and a Gold Electrode. Insiders are officers, directors, or significant investors in a company. 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. Were on a mission to revolutionize energy storage and power a decarbonized future, and were starting with transportation. Fabrication and Characterization of Lead Sulfide Thin Films by Atomic Layer Deposition. Lee, S., J., Cha, S., W., Liu, Y., C., O'Hayre, R., Prinz, F., B. Nam, S., W., Liu, H., C., Stampfl, J., Kang, S., Prinz, F., B. Prinz, F., B., Kohl, F., Fasching, R., Glanninger, A., Jachimowicz, A., Chabicovsky, R. Compact graph representation for Solid Freeform Fabrication (SFF).