<p>Subject Group of Materials Science and Engineering</p><p>26207 Analysis of Micro-Structure of Interfaces between Gas, Winter Liquid, and Solid Phases</p><p>Description and rationale: The aim of this course is to provide basic knowledge of micro-structure of interfaces between gas, liquid, and solid phases. In the study of the gas / solid interface, relaxation and reconstruction of the surface structure of solid are reviewed, and scanning tunneling microscope (STM) is introduced to determine (7 x 7) reconstruction on Si (111). X-ray photo-spectroscopy is introduced to analyze chemical bonds between metal thin film and carbon substrate. Surface tension produced at the gas / liquid interface is reviewed thermodynamically, and several methods for surface tension measurement are introduced.</p><p>The structure of the electric double layer formed at the interface between solid / liquid is studied, and the principle of electric double layer capacitors are shown as an example of its application. A new topic related to the liquid / liquid interface is selected. </p><p>Keywords: Interface, Relaxation, Reconstruction, Scanning tunneling microscopy, X-ray photo-spectroscopy,</p><p>Surface tension, Electric double layer</p><p>Pre-requisite: basic thermodynamics and surface analysis</p><p>Expected students: master and doctoral</p><p>Instructor: </p><p>Course Outline:</p><p>1. What are interface and surface?</p><p>2. Structure of interface between solid and gas</p><p>2-1. Relaxation and reconstruction of solid surface</p><p>2-2. Principle of scanning tunneling microscopy (STM) </p><p>2-3. STM observation of (7 x 7) reconstructed structure on silicon (111) surface</p><p>3. Structure of interface between solid and solid</p><p>3-1. Principle of x-ray photo-spectroscopy (XPS)</p><p>3-2. XPS analysis of chemical bonds produced between Al thin film and graphite </p><p> substrate during vacuum deposition </p><p>4. Structure of interface between gas and liquid</p><p>6/2008 4-1. Thermodynamics of gas / liquid interface</p><p>4-2. Surface tension, surface excess, and surface depression</p><p>4-3. Measurement of surface tension</p><p>4-4. Presentation of laboratory work on surface tension of solutions</p><p>5. Structure of interface between solid and liquid</p><p>5-1. Electric double layer</p><p>5-2. Gouy – Chapman theory</p><p>5-3. Electric double layer capacitor</p><p>6. Structure of interface between liquid and liquid</p><p>6-1. Phenomena of mass transport at liquid / liquid interface</p><p>6-2. New topics </p><p>Grading: based on attendance (20%) presentation (20%), reports (20%) and final examination (40 %).</p><p>Textbooks and references: “Physics and Chemistry of Interfaces (Second Revised and Enlarged Edition),</p><p>Hans-Jurgen Butt, Karlheinz Graf, and Michael Kappl, Wiley-VCH, Weinheim, 2006 (ISBN: 3-527-40629-8)</p><p>“Surface Studies by Scanning Tunneling Microscopy”, C. Binning, H. Rohrer, Ch.Gerber, and E. Weibel, Phys.</p><p>Rev. Lett., 57 – 60 (1982), “An in situ XPS study of sputter-deposited aluminium thin films on graphite, C.</p><p>Hinnen, D. Imbert, J. M. Siffre, and P. Marcus, Appl. Surf. Sci., 78, 219 – 231 (1994)</p><p>6/2008</p>