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Events List

  1. Prof. S. Srinivasa Murthy Seminar

    SOLID STATE HYDROGEN STORAGE & DELIVERY FOR PORTABLE & MOBILE APPLICATIONS; THERMAL ENGINEERING ASPECTS Efficient, economical, & safe storage & delivery is essential for using hydrogen as a fuel in mobile and portable applications. The thermal design of solid state hydrogen storage devices involves coupled heat and mass transfer with heat generation and chemical reactions. Important design considerations include gravimetric hydrogen storage capacity and charging/discharging...

  2. Prof. Joachim Knoch Seminar

    Tunnel FETs – Device Physics and Realizations In recent years, tunnel field-effect transistors (TFETs) have attracted a great deal of attention for future nanoelectronics devices. The reason for the interest is that TFETs potentially enable a significant reduction of the power consumption of highly integrated circuits. However, to date most of the experimental demonstrations of TFETs exhibit a performance inferior to conventional MOSFETs. Here, the operating principles of TFETs will...

  3. Aaron D. Franklin seminar - "The Road Ahead for Carbon Nanotube Transistors"

    Brief Bio: Aaron Franklin received his Ph.D. from Purdue University in 2008 and his B.S.E. degree from Arizona State University in 2004, both in electrical engineering. Since 2009, he has been a Research Staff Member at IBM's T. J. Watson Research Center working in the area of low-dimensional nanoelectronics. His research focuses on the integration of nanomaterials into electronic devices, including high-performance transistors, thin-film transistors, supercapacitors, and photovoltaic...

  4. Integrated Imaging Seminar - Prof. Jeff Fessler

    Title: Accelerating Image Reconstruction using Variable Splitting Method Abstract:Statistical image reconstruction methods have been used in PET and SPECT commercially for well over a decade and have recently begun to appear commercially in X-ray CT systems, offering the possibility of reducing X-ray dose.  Iterative methods are also poised to impact clinical MRI. Computation time is a significant challenge for iterative image reconstruction methods, particularly in X-ray CT and MRI....

  5. Solar Seminar Series - Dr. Richard Schwartz

    Title: A Partial History of Solar Cell Modeling at Purdue Abstract: There is a long history of the modeling of solar cells at Purdue that has led to the prominence that the work here now enjoys. The early work in this area was not directed at photovoltaic cells as solar cells but as thermophotovoltaic (TPV) cells. This talk will trace the path that was followed from the development and modeling of TPV cells to Interdigitated Back Contact (IBC) cells. We will discuss how this then led to...

  6. Integrated Imaging Seminar - Prof. Daniela Bortoletto

    The Discovery of a New Particle. Is it the Higgs? Abstract: On July 4th 2012 physicists working at the Large Hadron Collider (LHC), the world’s highest-energy proton accelerator, at CERN in Geneva, Switzerland announced the discovery of a new particle that is about 135 times heavier than a proton. This particle seems to closely resemble the Higgs boson that was hypothesized over forty years ago to explain the masses of all elementary particles in the universe. In this talk, I will...

  7. Solar talk by Stephen Katsaros, Nokero Intl. Ltd

    Recently, Steve Katsaros  (Purdue alumnus) received the Patent for Humanity Award from the U.S. Department of Commerce's U.S. Patent and Trademark Office. The award is supported by the Ewing Marion Kauffman Foundation. He is a founder and CEO of Nokero International Ltd. He will describe his patented technology as well as his entrepreneurial experiences. Nokero uses the world’s best solar cells, made by SunPower: ·        ...

  8. Billy J. "BJ" Stanbery - Solar Seminar Series

    High-rate processing and advanced emitter structures for CIGS PV module manufacturing Achieving both macroscopic homogeneity and nanoscale heterogeneity for non-stoichiometric multinary compounds is a critical challenge for the success of copper indium gallium selenide (CIGS) photovoltaic cells.  Co-evaporation yields world record performance, but is also a high-temperature vacuum process that is difficult to scale.  Here, we consider reactive transfer processing (RTP), which has...

  9. Solar Seminar - Kurt R Mikeska

    Crystalline Silicon Solar Cell Metallization Crystalline silicon solar cell technology has advanced by improvements to all aspects of cell design including metallization. Improvements to metal contacts have been synergistic with other cell improvements such as passivation, lightly doped emitters, and boron doped emitters. Recent improvements in metallization contacts have allowed the solar cell industry to move from highly doped emitters (HDE), designed to enable sufficiently low contact...

  10. Integrated Imaging Seminar - Prof. Peyman Milanfar

    Title: Data-adaptive Filtering and the State of the Art in Image Processing Abstract: Recent approaches to processing and restoration of images and video have brought together several powerful data-adaptive methods from different fields of work. Examples include Moving Least Square (from computer graphics), the Bilateral Filter and Anisotropic Diffusion (from computer vision), Boosting and Spectral Methods (from Machine Learning), Non-local Means (from Signal Processing), BregmanIterations...

  11. Integrated Imaging Seminar - Prof. Lawrence Carin

    Title: Coded Aperture Compressive Spectral and Temporal Imaging Abstract:Compressive sensing is a new technology that allows one to acquire data with high information content, based on measurements that are much fewer in number than would be expected by Nyquist theory. This is achieved by leveraging signal models that go beyond signal bandwidth, to exploit the fact that signals of interest typically reside in a low-dimensional subspace. This includes exploitation of concepts like sparsity,...

  12. Suresh V. Garimella - Solar Seminar Series

    Energy Storage – Options and Opportunities   I will briefly review the drivers for renewable and clean energy technologies, and the challenges in the widespread use of renewables.  In particular, I will focus on the need for inexpensive and reliable energy storage approaches if inherently intermittent and transient renewable sources are to gain broad acceptance.  As a specific example, I will tell a story from our group related to thermal energy storage in...

  13. Prof. Stephen A Campbell - Carbon-Based Nanoswitch Logic

    Abstract:The process of shrinking semiconductor devices employed for fifty years has almost reached its end.  Fundamental limitations of the field effect device prevent much additional reduction in the supply voltage.  This leads to unavoidable off-state leakage and very high operating power, an intolerable situation, especially for mobile applications. This is leading to radical changes in the roadmap, forecasting separate technologies for high performance, low operating...

  14. Yi Cui - Solar Seminar Series

    Abstract: Advanced photon management using nanostructures provides exciting opportunities for enhancing solar cell device performance. In this talk, I will present examples of photon management at the nanoscale for amorphous Si, crystalline Si and III-V solar cells while balancing electrical charge carrier collection. Nanocone solar cells are simple structures combing an efficient antireflection and light trapping across a broad band of spectra and over a wide range of incident angles. We...

  15. George Zhao Seminar

    Abstract: Porous materials have found many traditional applications, such as petroleum refining, ion exchange, gas separation and purification, and optoelectronics, benefiting from the highly ordered pore structure and huge specific surface area. Recent emerging applications, such as sustainable energy, water technology, and nanotechnology require advanced porous materials with well-defined structural, interfacial, compositional, and morphological properties. This new paradigm presents...

  16. Solar Seminar Series - Bryan W. Boudouris

    Design of Optoelectronically-active Polymers for Organic Photovoltaic Applications Organic photovoltaic (OPV) devices are of great interest due to their promise of providing flexible, lightweight, and inexpensive alternatives to their currently-used inorganic counterparts. However, large-scale implementation of these modules has been hampered due to their relatively low power conversion efficiencies even in the highest-performing devices (PCE ~10%). Because the charge generation,...

  17. All User Meeting Slides

    Below is a link for the slides from the 2013 All User Meetings. More InformationSafety SlidesDirector Slides

  18. Professor Roger T. Howe Seminar

    Title: Vacuum Nanosystemsfor Energy Conversion Abstract: Micro and nano-fabricated sensors (e.g., accelerometers and gyroscopes) and actuators (e.g., light valve chips for projection and cell-phone displays) have become commonplace in recent years. Some of these devices must operate in a hermetically sealed, lowpressure ambient, a need that motivated the development of low-cost, wafer-scale vacuum encapsulation technologies. In this talk, I’ll identify a  promising direction for...

  19. XPS Lite Workshop Introduction to CasaXPS

    Course Objectives: -Learn main physics principles of X-ray Photoelectron Spectroscopy (XPS) - Learn what analysis/treatment should be applied to raw XPS data - Learn CasaXPS software - Learn approaches for qualitative and quantitative analysis of XPS data using CasaXPS Case studies based on participant's XPS data Course Description: XPS is widely used to determine the chemical composition of a surface (element concentrations, chemical states, lateral and depth distributions,...

  20. Marcello Ferrera Seminar on Advanced Integrated Photonics

    Marcello Ferrera attained his master degree in micro-electronic engineering in 2005 at University of Palermo (Italy) defending his thesis entitled: "Growth of ferroelectric thin films of barium strontium titanate by pulsed laser deposition and their morphological characterization". This work was developed during a one year internship sponsored by (and performed at) INRS--EMT labs in Canada. During this period, he mastered fundamental techniques for the fabrication and the...