Tags: thin films

Resources (21-38 of 38)

  1. Comparison of strain relaxation in epitaxial Si0.3Ge0.7 films grown on Si(001) and Ge(001)

    07 Oct 2011 | | Contributor(s):: Brian Demczyk, R. Naik, G. Auner, C. Kota, U. Rao

    Surface and interfacial strain have been computed for SiGe thin films grown by UHVCVD,based on measurements via transmission electron microscopy and Raman spectroscopy.

  2. Lubrication Effects on Head-Disk Spacing Loss

    07 Oct 2011 | | Contributor(s):: Brian Demczyk, J. Liu, C. Y. Chen, S. Zhang

    The effects of lubrication thickness on the magnetic recording head-media tribology were investigated in this study.

  3. Solar Cells Lecture 4: What is Different about Thin-Film Solar Cells?

    29 Aug 2011 | | Contributor(s):: Muhammad A. Alam

    Thin film solar cells promise acceptable efficiency at low cost. This tutorial examines the device physics of thin-film solar cells, which generally require a different type of analysis than crystalline solar cells.

  4. Anti-Reflection Coating Assignment

    30 Nov 2010 | | Contributor(s):: Alex Small

    This is a guided activity for students to study the design of an anti-reflection coating. The student is first asked to do a simple calculation by hand, to determine the proper thickness for an anti-reflection coating in a standard situation. The student then uses the nanoHUB tool "PhotonicsRT:...

  5. Chemically Enhanced Carbon-Based Nanomaterials and Devices

    09 Nov 2010 | | Contributor(s):: Mark Hersam

    Carbon-based nanomaterials have attracted significant attention due to their potential to enable and/or improve applications such as transistors, transparent conductors, solar cells, batteries, and biosensors. This talk will delineate chemical strategies for enhancing the electronic and optical...

  6. Electric and Magnetic Properties of Multiferroic Oxide Thin Films and Heterostructures

    20 Oct 2010 | | Contributor(s):: Pedro Antonio Prieto

    Outline:IntroductionPreparation methods for oxide thin filmsOxide thin films and heterostructures Multiferroic materialsBiFeO3, YMnO3, BiMnO3 thin films and FE/FM CompositesConclusions

  7. TiCN/TiNbCN Multilayer System with Enhanced Tribological Properties

    20 Oct 2010 | | Contributor(s):: Pedro Antonio Prieto

    Improvement in the mechanical properties of hard coatings such monolayer (TiN, CrN, AlCN, WC-Co, TiCN) [1], has been achieved using compositional gradient WC/C layer, or multilayered type [transition metal/transition carbide]n, [transition metal/transition nitride]n, [TiCN/ZrCN]n, among others....

  8. Center of Excellence on Novel Materials (CENM) Overview Video

    11 Oct 2010 | | Contributor(s):: Pedro Antonio Prieto

    The CENTER OF EXCELLENCE FOR NOVEL MATERIALS (CENM) is part of a high-priority national effort supported primarily by COLCIENCIAS and integrated by 19 recognized multidisciplinary research groups from 10 universities across Columbia.

  9. Nanotechnology Activities in Colombia: A Perspective From the Excellence Center for Novel Materials

    11 Oct 2010 | | Contributor(s):: Pedro Antonio Prieto

    I will present the current state of R & D in the fields of condensed matter, novel materials, and nanotechnology in Colombia. I will initially consider Latin America and the Caribbean (LAC) to then visualize individual developments, as well as those for the region as a whole in these fields of...

  10. Anisotropic magnetoresistance in colossal magnetoresistive La1-xSrxMnO3 thin films

    03 Sep 2010 | | Contributor(s):: Jeng-Bang (Tony) Yau

    We report on magnetic field and temperature dependent measurements of the anisotropic magnetoresistance (AMR) in epitaxial La1-xSrxMnO3 (LSMO) thin flms. While in 3d ferromagnetic alloys increasing the magnetization, either by reducing the temperature or increasing the magnetic field, increases...

  11. Superficial Science – Polymer Surface Science at Purdue

    26 Aug 2010 | | Contributor(s):: Jeffery Youngblood

    In this presentation, Professor Youngblood describes his current research projects and the theme that ties them together - surface science.

  12. Surface Characterization Studies of Carbon Materials: SS-DNA, SWCNT, Graphene, HOPG

    16 Feb 2010 | | Contributor(s):: Dmitry Zemlyanov

    In this presentation examples of surface characterization studies of carbon specimens will be presented. (1) In particularly, the systematic XPS (X-ray photoelectron spectroscopy) characterization of graphene grown on the SiC surface will be reported. This work demonstrates a use for XPS to...

  13. X-ray Diffraction and Reflectivity Analysis of Thin Films and Nanomaterials

    29 Dec 2009 | | Contributor(s):: Mauro Sardela

    A review of x-ray analysis techniques applied to the characterization of nanomaterials will be presented with focus on x-ray lab source instrumentation similar to the facilities available at the Birck Nanotechnology Center. Practical aspects of data acquisition and interpretation using x-ray...

  14. Renewable Solar Energy: Has the Sun Finally Risen on Photovoltaics?

    10 Apr 2009 | | Contributor(s):: Mark R. Pinto

    After a review of the overall renewable energy landscape,including the central role of economics, we present here the case thatPV is on the verge of becoming a major source of electrical powerthrough a principle similar to that which underlies the 50 year progressof IC technology - the reduction...

  15. Functional Graded Materials architectures applied at nanoscale: thin PVD nanograded and layered coatings

    09 Oct 2008 | | Contributor(s):: Vasco Teixeira

    Functionally graded materials (FGM’s) are designed to achieve levels of performance superior to that of homogeneous materials by combining the desirable properties of each constituent phase. FGM’s are composite materials where the composition or the microstructure is locally varied so that a...

  16. BNC Annual Research Review: Thin-Film Electronics using Nanowire Transistors

    06 Jun 2008 | | Contributor(s):: David Janes

    This presentation is part of a collection of presentations describing the projects, people, and capabilities enhanced by research performed in the Birck Center, and a look at plans for the upcoming year.

  17. Pulsed Laser Deposition of Thin Films

    02 Aug 2007 | | Contributor(s):: Josh Kaufman

    Thin metal films have many applications from optical limiters to nanocircuits. Methods for fabricating these films differ in theory and complexity. Pulsed Laser Deposition (PLD) is a popular method for fabricating thin films. A number of thin films were fabricated using PLD. Silver films of...

  18. Advanced Nanotechnology Thin Film Approaches for the Food and Medical Industry: an overview of current status

    10 Jan 2007 | | Contributor(s):: Vasco Teixeira

    In the field of nanotechnology-based thin films and coatings, new approaches using nanoscale effects can be used to design, create or model nanocoating systems with significantly optimized or enhanced properties of high interest to the food, health and biomedical industry. With the development...