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. Trends for Ba and Sr followed each other closely, reflecting the similar chemistry among alkaline earth metals. Utilizing the aberration-corrected TEM capability and HRTEM simulation results, we experimentally verified that oxygen vacancies segregate near the single grain boundary of a YSZ bicrystal. 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. Active water management for proton exchange membrane fuel cells using an integrated electroosmotic pump. Roelofs, K. E., Brennan, T. P., Trejo, O., Xu, J., Prinz, F. B., Bent, S. F. Atomic layer deposition of thin-film ceramic electrolytes for high-performance fuel cells. Coyne, R., Finger, S., Konda, S., Prinz, F., B., Siewiorek, Daniel, P., Subrahmanian, E. Prinz, F., B., Urban, G., Jobst, G., Keplinger, F., Aschauer, E., Fasching, R. Thermal Modelling and Experimental Testing of MD* Spray Shape Deposition Processes. Characterizations of the TiO2:Co NWs show that Co dopants exhibit 2+ oxidation state and substitutionally occupy Ti sites in the TiO2 lattice. Therefore, quantitative analysis is crucial to understanding the relationship between the actual local surface potential distribution and the quantities obtained from EFM measurements. However, this AFM-based electrochemical probing still has numerous engineering challenges such as immobilization of the live cells, compatibility of the immobilization procedure with AFM manipulation of the probe, maintenance of biological activity of the cells for an extended time while performing the measurements, and minimization of electrochemical noise. QuantumScape was worth $54 billion on the stock market shortly after it went public in 2020. Active Water Management for PEM Fuel Cells. The oxygen evolution of single cells was investigated using a nano-probe with an ultra-micro electrode (UME) in a submicron sized system in combination with a micro-fluidic system. QuantumScape was founded in 2010 by Jagdeep Singh, Tim Holme and Professor Fritz Prinz of Stanford University. View details for Web of Science ID 000259676000007. Tim Holme | ENERGY - Stanford University 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. Solid oxide fuel cell with corrugated thin film electrolyte. Stampfl, J., Liu, H. C., Nam, S. W., Sakamoto, K., Tsuru, H., KANG, S. Y., Cooper, A. G., Nickel, A., Prinz, F. B. Kobayashi, K. G., Fujii, M., Prinz, F. B. A $43 billion lab. Shim, J. H., Park, J. S., An, J., Guer, T. M., Kang, S., Prinz, F. B. Born in Vienna, he has spent many years working on various aspects of e-mobility. Atomic Layer Deposition of Mixed Conducting Cathodes for Solid Oxide Fuel Cells, Fabrication and Characterization of Lead Sulfide Thin Films by Atomic Layer Deposition". It is illegal for insiders to make trades in their companies based on specific, non-public information. Mr. McCarthy has served as QuantumScapes Chief Legal Officer and Head of Corporate Development since March 2013. QS.N - | Stock Price & Latest News | Reuters Thermal behavior of a metal embedded fiber Bragg grating sensor, Miniature fuel cells with non-planar interface by microfabrication. 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. Observing the Nucleation Phase of Atomic Layer Deposition In Situ. Doping nanowires (NWs) is of crucial importance for a range of applications due to the unique properties arising from both impurities' incorporation and nanoscale dimensions. Stampfl, J., Liu, H. C., Nam, S. W., Kang, S., Prinz, F. B. Cheng, J., Pornprasertsuk, R., Saito, Y., Prinz, F. B. 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. Mechanical and thermal expansion behavior of laser deposited metal matrix composites of Invar and TiC, Electro-discharge machining of mesoscopic parts with electroplated copper and hot-pressed silver tungsten electrodes. Liu, H., C., Stampfl, J., Kang, S., Prinz, F., B. Our innovative battery cell technology can store energy more efficiently and reliably than today's lithium-ion batteries. In order to avoid the worst consequences of climate change, we must electrify transportation and turn internal combustion engines into a way of the past. B., Park, J. S., Gr, T., Kang, S. K., Prinz, F. B. 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. View details for DOI 10.1016/j.jconrel.2007.08.024. Ryu, W., Hammerick, K. E., Kim, Y. B., Jung, H. J., Park, J. S., Cha, S. W., Guer, T. M., Prinz, F. B. Nanoscale impedance and complex properties in energy-related systems. Cha, S. W., O'Hayre, R., Park, Y., Prinz, F. B. An, J., Park, J. S., Koh, A. L., Lee, H. B., Jung, H. J., Schoonman, J., Sinclair, R., Gr, T. M., Prinz, F. B. Three-Dimensional Nanostructured Bilayer Solid Oxide Fuel Cell with 1.3 W/cm(2) at 450 C. Prior to joining the company, Ms. Fong served as the Vice President of Global Human Resources at PDF Solutions (NASDAQ: PDFS), a semiconductor SAAS company. The key to our technology is a patented solid ceramic electrolyte separator, the material that keeps the anode and cathode from touching and moves lithium ions from one side of the battery to the other during charge and discharge. This work provides an intriguing and effective approach on tuning electronic structures for optimizing the catalytic activity. B., Tian, X., Guer, T. M., Prinz, F. B. His focus is on micro and nano research in the field of energy, where he researches new materials and methods for efficient energy conversion and storage. Motoyama, M., Fukunaka, Y., Ogata, Y. H., Prinz, F. B. Crabb, K. M., Park, J. S., Chao, C., Prinz, F. B. Nanopore Patterned Pt Array Electrodes for Triple Phase Boundary Study in Low Temperature SOFC. By 2012, it claimed investors like Bill Gates and Volkswagen. 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. This result may represent an initial step in generating "high efficiency" bioelectricity by directly harvesting high energy photosynthetic electrons. QuantumScape, the leading developer of next-generation solid-state batteries for electric vehicles, listed today on the NYSE. Engineering artificial tissue scaffolds with a similar organization to that of the natural tissue is a key element to the successful recapitulation of function. High-performance ultrathin solid oxide fuel cells for low-temperature operation. Park, J., S., Kang, S., K., Gr, T., M., Prinz, F., B. Prior to joining QuantumScape, Mr. Hettrich served as a Private Equity Associate of Bain Capital, an investment firm, from September 2007 to July 2009. The focus was on the development solid-state lithium-ion batteries, which are generally . Shim, J. H., Chao, C., Huang, H., Prinz, F. B. Culturing of human coronary artery endothelial cells (HCAECs) on the sample scaffolds demonstrated the biocompatibility of the developed process and the strong influence of high-resolution micro-geometries on HCAEC growth. High-k, low leakage thin films are crucial components for dynamic random access memory (DRAM) capacitors with high storage density and a long storage lifetime. These insights will help design high-efficiency SOFCs that operate at low temperatures with power densities that are of practical significance. 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. Prinz, F., B., Aschauer, E., Fasching, R., Varahram, M., Jobst, G., Urban, G. Shape deposition manufacturing of heterogeneous structures. Stanford Scientists Create a Billionaire Factory From QuantumScape Jung, H. J., Dasgupta, N. P., Van Stockum, P. B., Koh, A. L., Sinclair, R., Prinz, F. B. 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