Design of an atomic layer deposition reactor for hydrogen sulfide compatibility. Indeed, grain boundary engineering can alter transport and kinetic properties by several orders of magnitude. A Computational Comparison of Electron Transfer from Reduced Ferredoxin to Flavin Adenine Dinucleotide and a Gold Electrode. Cermet layers were deposited between the porous Pt cathode and the dense YSZ electrolyte wafer using atomic layer deposition (ALD). 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. 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. Tissues such as skin, blood vessels, and cartilage have multi-layer structures with different cells in each layer. Mr. Hettrich is QuantumScapes Chief Financial Officer. On September 3, 2020, QuantumScape announced an agreement to merge with the blank check special purpose acquisition company (SPAC) company Kensington Capital Acquisition Corp. Electrical properties of YSZ thin films deposited on nanoporous substrates. The reactor was designed with respect to materials compatibility of all wetted components with H(2)S. A customized safety interlock system was developed to shut down the system in the event of toxic gas leakage, power outage, loss of building ventilation or compressed air pressure. 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. 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. View details for DOI 10.1089/ten.tea.2010.0211, View details for Web of Science ID 000286661600023, View details for PubMedCentralID PMC3052278, View details for Web of Science ID 000300770102019, View details for Web of Science ID 000305937200034, View details for Web of Science ID 000300615700012, View details for Web of Science ID 000295626000032, View details for Web of Science ID 000292978600048, View details for DOI 10.1016/j.scriptamat.2010.08.057, View details for Web of Science ID 000284453300007, View details for Web of Science ID 000300770105038, View details for Web of Science ID 000295841200168, View details for Web of Science ID 000309464600012. 3D Microfluidic Approach to Mechanical Stimulation of Osteocyte Processes. 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. A typical issue with these oxide electrolytes is sluggish oxygen surface kinetics at the gas-electrolyte interface. 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. Previous studies of osteogenic potential in ASCs have focused on chemicals, growth factors, and mechanical stimuli. Prinz, F., B., Zhou, Y., Holme, T., Berry, J., Ohno, T., Ginley, D. First principles study of doped carbon supports for enhanced platinum catalysts. Prinz, F., B., Fasching, R., Kohl, F., Urban, G., Jobst, G., Keplinger, F. NEXT GENERATION MANUFACTURING TASK PLANNER FOR ROBOTIC ARC-WELDING. 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. Prior to joining QuantumScape, he was a Research Associate at Stanford University from June 2008 to January 2011. Cho, I. S., Logar, M., Lee, C. H., Cai, L., Prinz, F. B., Zheng, X. Nanostructuring Methods for Enhancing Light Absorption Rate of Si-Based Photovoltaic Devices: A Review. 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. On optimizing the dopant concentration at the surface of single-crystal YSZ, a 5-fold increase in the oxygen surface exchange coefficient of the electrolyte was observed using isotopic oxygen exchange experiments coupled with secondary ion mass spectrometer measurements. In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by Fritz Prinz in QS / Quantumscape Corp. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. Shape deposition manufacturing with microcasting: Processing, thermal and mechanical issues. Solid oxide fuel cell with corrugated thin film electrolyte. In the last 2 years at Quantumscape Corp, Fritz Prinz has sold an estimated value of $34.54M worth. We investigated the capability of ODTS self-assembled monolayers (SAMs) to deactivate the ALD PbS surface reactions as a function of dipping time in ODTS solution. It took five years of experimentation to find it, Singh said, and five more to . When Singh founded QuantumScape with Fritz Prinz and Tim Holme in 2010, he didn't know if that material existed. Kim, Y. Prior to joining QuantumScape, he was the Chief Administrative Officer at Infinera Corporation from April 2003 to March 2013. 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This result suggests the ability to significantly reduce Pt loading, thereby reducing the cost, and furthermore, can be easily applied to high performance fuel cells with complex 3-D structures. 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. We show significant oxygen deficiency due to segregation of oxide-ion vacancies near the grain-boundary core with half-width < 0.6nm. Observing the Nucleation Phase of Atomic Layer Deposition In Situ. Dasgupta, N. P., Neubert, S., Lee, W., Trejo, O., Lee, J., Prinz, F. B. Effect of Cation Non-Stoichiometry and Crystallinity on the Ionic Conductivity of Atomic Layer Deposited Y:BaZrO3 Films. Processing and microstructures of fiber Bragg grating sensors embedded in stainless steel. Komadina, J., Walch, S., Fasching, R., Grossman, A., Prinz, F. B. Holme, T. P., Pornprasertsuk, R., Prinz, F. B. Since then, it has spent over $300 million on developing its product and manufacturing process to try to . 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. from Vanderbilt University Law School. We used atomic force microscopy-based force spectroscopy to record an increase in the cytoskeletal tension after treatment with electric fields. View details for Web of Science ID 000316846700034. QuantumScape was founded in 2010 by Jagdeep Singh, Fritz Prinz, and Tim Holme from Stanford University. in Economics from Pomona College, a M.B.A. from Stanford Graduate School of Business, and a M.S. 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. Weiss, L., Prinz, F., Neplotnik, G., Padmanabhan, K., Schultz, L., Merz, R. Miniaturisierte, integrierte Biosensoren fr Glucose- und Lactat - Monitoring. 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. 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. View details for Web of Science ID 000329586700005, View details for DOI 10.1007/s40684-014-0011, View details for Web of Science ID 000332646800011, View details for Web of Science ID 000335016400037. View details for DOI 10.1016/j.jconrel.2007.08.024. View details for DOI 10.1007/s40684-014-0025-0, View details for Web of Science ID 000340035500004. Shim, J., H., Kim, Y., B., Park, J., S., Prinz, F., B. High-performance ultrathin solid oxide fuel cells for low-temperature operation. He is a board member of National Research Council Committee. Shim, J. H., Park, J. S., An, J., Guer, T. M., Kang, S., Prinz, F. B. During their presentation to Gates, Singh said he Fritz, and Holme didn't have as much test data as they do now to indicate QuantumScape was on the right track, so they emphasized the enormous. 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). What is. A customized atomic layer deposition (ALD) reactor was designed with components compatible with hydrogen sulfide (H(2)S) chemistry. Shen, Y., Lee, M., Lee, W., Barnett, D. M., Pinsky, P., 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. Fabrication and Characterization of Lead Sulfide Thin Films by Atomic Layer Deposition. Mr. McCarthy currently serves as a member of the boards of several privately-held companies. 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. -C., Kao, J. Conceptual data model for advanced rapid prototyping. Chao, C., C., Park, J., S., Prinz, F., B. Evidence of Proton Transport in Atomic Layer Deposited Yttria-Stabilized Zirconia Films. . Were on a mission to revolutionize energy storage and power a decarbonized future, and were starting with transportation. Efficiency enhancement of solid-state PbS quantum dot-sensitized solar cells with Al2O3 barrier layer. 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. The stiffness differences are not dependent on cell culture density; hence, material differences between cells cannot be attributed solely to cell-cell constraints. Kietzman, J. W., Cooper, A. G., Weiss, L. E., Schultz, L., Lombardi, J. L., Prinz, F. B. Reflections on a concurrent design methodology: A case study in wearable computer design. The change in mechanical properties of the cells in response to reprogramming offers insight into how the cell interacts with its environment and might lend clues to how to efficiently reprogram cell populations as well as how to maintain their pluripotent state. An Image-Based Localization Algorithm for Catheter Navigation in the Left Atrium. H(2)S is used as a reactant for the ALD of metal sulfides. Pornprasertsuk, R., Holme, T., Prinz, F. B. Motoyama, M., Dasgupta, N. P., Prinz, F. B. Area-Selective Atomic Layer Deposition Using Self-Assembled Monolayer and Scanning Probe Lithography, SCANNING TUNNELING MICROSCOPY OF QUANTUM CONFINEMENT EFFECTS IN LEAD SULFIDE THIN FILMS, Atomic layer deposition of LSM cathodes for solid oxide fuel cells, Open micro-fluidic system for atomic force microscopy-guided in situ electrochemical probing of a single cell. Before that, she served in several HR leadership roles at Foxconn Interconnect Technology, Inc., a multinational electronics manufacturer, and NUMMI, an automotive manufacturing joint venture between Toyota and General Motors. Hammerick, K. E., Longaker, M. T., Prinz, F. B. Design and fabrication of materials for Laser Shape Deposition Manufacturing, Graph based process planning for Mold Shape Deposition Manufacturing. That has not stopped the company from forging ahead with a. 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. O'Hayre, R., Fabian, T., Litster, S., Prinz, F., B., Santiago, J., G. Biodegradable Micro-Fluidic Sheet-Devices for Programmed Drug Release. Stanford Scientists Create a Billionaire Factory. High aspect ratio and high breakdown strength metal-oxide capacitors. CORPORATE FACT SHEET About QuantumScape QuantumScape, founded in 2010 in California, is a leader in the development . In vivo electrochemical impedance measurement on single cell membrane, Effect of crystallinity on proton conductivity in yttrium-doped barium zirconate thin films. Mr. Singh joined the QuantumScape Board in May 2010. 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. Park, J., S., Kang, S., K., Gr, T., M., Prinz, F., B. 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. Active Water Management for PEM Fuel Cells. The results demonstrate that electrolyte surface engineering with ALD can have a meaningful impact on the performance of electrochemical devices. 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. in Computer Science from the University of Maryland College Park, an M.B.A. from the University of California, Berkeley, Haas School of Business, and a M.S. Oxygen activation over engineered surface grains on YDC/YSZ interlayered composite electrolyte for LT-SOFC. 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. What is QuantumScape? Kim, Y. Huang, H., Nakamura, M., Su, P., Fasching, R., Saito, Y., Prinz, Fritz, B. We found that oxygen column intensity is governed primarily by column occupancy rather than by static displacement of oxygen atoms. Here we report successful demonstration of a thin-film three-dimensional (3-D) SOFC architecture achieving a peak power density of 1.3 W/cm(2) obtained at 450 C. Ryu, W., Bai, S., Park, J. S., Huang, Z., Moseley, J., Fabian, T., Fasching, R. J., Grossman, A. R., Prinz, F. B. QuantumScape is a leader in developing next-generation solid-state lithium-metal batteries for electric vehicles. Ultra-sharp High-aspect-ratio Probe Array for SECM and AFM Analysis. Ultra-thin platinum catalytic electrodes fabricated by atomic layer deposition. Additionally, their galvanotactic response appears to share classic chemotactic signaling pathways that are involved in the migration of other cell types. 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. Schindler, P., Logar, M., Provine, J., Prinz, F. B. A variety of metals can be chosen as the tip material. However, three-dimensional (3-D) fabrication of tissue scaffolds containing complex microarchitectures still remains a challenge. Prinz, F., B., Aschauer, E., Fasching, R., Varahram, M., Jobst, G., Urban, G. Shape deposition manufacturing of heterogeneous structures. The STM-ALD system has a complete passive vibration isolation system that counteracts both seismic and acoustic excitations. A sharp peak in the performance of sputtered platinum fuel cells at ultra-low platinum loading. Material strength in polymer shape deposition manufacturing, INTEGRATED DESIGN AND RAPID MANUFACTURING OVER THE INTERNET. Kim, Y. Pinilla, J., M., Kao, J., H., Prinz, F., B. 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. Reduction and oxidation of oxide ion conductors with conductive atomic force microscopy, Surface Modification of Yttria-Stabilized Zirconia Electrolyte by Atomic Layer Deposition, Atomic Layer Deposition of Lead Sulfide Thin Films for Quantum Confinement, Intermediate-Temperature Ceramic Fuel Cells with Thin Film Yttrium-Doped Barium Zirconate Electrolytes. Park, J. S., Kim, Y., An, J., Prinz, F. B. Brennan, T. P., Trejo, O., Roelofs, K. E., Xu, J., Prinz, F. B., Bent, S. F. STANFORD ENGINEERS DEVELOP FUEL CELL THAT CAN DELIVER RECORD POWER-PER-SQUARE INCH AT RECORD-LOW TEMPERATURES (http://engineering.stanford.edu/research-profile/stanford-engineers-develop-fuel-cell-can-deliver-record-power-square-inch-record-lo). 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. A microfabricated direct methanol fuel cell with integrated electroosmotic pump. 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. Design and fabrication of a micro fuel cell array with "flip-flop" interconnection. 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. View details for Web of Science ID 000334990600047, View details for DOI 10.1016/j.ijhydene.2013.11.023, View details for Web of Science ID 000331920100022. B., Tian, X., Guer, T. M., Prinz, F. B. Prior to joining QuantumScape, he was the founder and Chief Executive Officer at Infinera Corporation (NASDAQ: INFN), a telecommunications company, from 2001 to 2009. Improving solid oxide fuel cells with yttria-doped ceria interlayers by atomic layer deposition. 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. Fritz Prinz and the entire QuantumScape team for reaching this . Islands with sub-10 nm diameters were observed during the initial ALD cycles by transmission electron microscopy, and in situ observations of the coalescence and sublimation behavior of these islands show the possibility of further modifying the size and density of dots by annealing. Finally, reaction energetics are calculated for two likely reaction pathways over Pt clusters supported on different HOPG substrates. 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. Replacing this century-old technology wont happen overnight, but with the help of our automotive partners, our dedicated team of world-class scientists and engineers is working around the clock to put our breakthrough, solid-state technology on the road as soon as possible. A quantum simulation verified both trends and illustrated the wave function extension effect. Chao, C., Park, J. S., Tian, X., Shim, J. H., Gr, T. M., Prinz, F. B. Effects of surface chemistry and microstructure of electrolyte on oxygen reduction kinetics of solid oxide fuel cells. Koolwal, A. O'Hayre, R., Lee, S. J., Cha, S. W., Prinz, F. B. Capacitive blade tip clearance measurements for a micro gas turbine. Walch, S. P., Komadina, J. D., Prinz, F. B. Prinz, F., B., Fabian, T., Brasseur, G., Hauser, H. The Mesicopter: A Meso-Scale Flight Vehicle. 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. Pornprasertsuk, R., Kosasang, O., Somroop, K., Jinawath, S., Prinz, F. B. This discovery enables entirely new categories of TiO2 devices and applications, and unlocks the potential to improve existing ones. Solid Oxide Fuel Cells with Atomic Layer Deposited Platinum Catalyst, Geometric Effects at Triple Phase Boundary in Solid Oxide Fuel Cells. The tubular MEAs are nominally 5 m long and have <500 nm outside diameter with total MEA thickness of nearly 50 nm. Amon, C. H., Schmaltz, K. S., Merz, R., Prinz, F. B. Laser deposition of metals for shape deposition manufacturing. We observe a consistent increase in the energy onset of electronic excitations from the lateral center of the dot toward the edges, which we attribute purely to shape. Kao, J. H., HEMMERLE, J. S., Prinz, F. B. Entwicklung elektrochemischer Dnnschicht CO2-Sensoren, Grundlagen und Technologie elektronischer Bauelemente. Prinz, F., B., Fasching, R., Husinsky, W., Urban, G., Betz, G., Aschauer, E. THICKNESS EFFECTS MAY NOT DO WHAT YOU THINK THEY DO. An, J., Kim, Y., Park, J., Gr, T. M., Prinz, F. B. A. Micro-Scale Radial-Flow Compressor Impeller Made of Silicon Nitride: Manufacturing and Performance. However, bFGF is degraded quickly in vivo and difficulty of controlling the dose level impedes its effective use in angiogenesis and tissue regeneration. An, J., Koh, A. L., Park, J. S., Sinclair, R., Guer, T. M., Prinz, F. B. 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. It was recently worth about $4 billion. Finger, S., Stivoric, J., Amon, C., Gursoz, L., Prinz, F., Siewiorek, D., Smailagic, A., Weiss, L. Rapid design and manufacture of wearable computers. 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. 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. Prior to joining QuantumScape, Mr. Hettrich served as a Private Equity Associate of Bain Capital, an investment firm, from September 2007 to July 2009. Kobayashi, K. G., Fujii, M., Prinz, F. B. Mack, J. F., Van Stockum, P. B., Iwadate, H., Prinz, F. B. ALD for clean energy conversion, utilization, and storage. 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. Park, J., S., Kim, Y., B., An, J., Shim, J., H., Gr, T., M., Prinz, F., B. Ultra-Thin Catalytic Electrodes for LT-SOFC, Editors Choice (Materials Science: 3D Lowers T), Three-Dimensional Nanostructured Bilayer Solid Oxide Fuel Cell with 1.3 W/cm2 at 450C. Schindler, P., Kim, Y., Thian, D., An, J., Prinz, F. B. Self-limiting atomic layer deposition of barium oxide and barium titanate thin films using a novel pyrrole based precursor. Weiss, L. E., Merz, R., Prinz, F. B., Neplotnik, G., Padmanabhan, P., Schultz, L., Ramaswami, K. Application of cylindrical electro-magnetrons for glow discharge deposition of amorpous carbon and amorphous carbon/germanium films. 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. Furthermore, this ALD Pt resulted in fuel cell performance comparable to that achieved by 80 nm-thick sputtered Pt. 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. We have built a combined scanning tunneling microscope-atomic layer deposition (STM-ALD) tool that performs in situ imaging of deposition.