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Researching thin films

Researching thin films. By Stephen Hudson, M.Ed The Design and Technology Academy @ Roosevelt High School North East ISD, San Antonio With Faculty Mentor Haiyan Wang, PhD Department of Electrical and Computer Engineering.

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Researching thin films

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  1. Researching thin films By Stephen Hudson, M.Ed The Design and Technology Academy @ Roosevelt High SchoolNorth East ISD, San Antonio With Faculty Mentor Haiyan Wang, PhDDepartment of Electrical and Computer Engineering Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  2. Imagine… A PC as thin as a piece of paper with more computing power than today’s devices… Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  3. Imagine… A home where the roof tiles no longer need replacing AND which generate enough electricity for 100% of the family’s needs… Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  4. Imagine… Nuclear Energy Plants with fewer maintenance issues on critical parts… Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  5. These are just a few of the upcoming applications based on the research being done in Dr. Wang’s labs at Texas A&M Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  6. What is Thin Film? Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  7. Synthesis • Characterization • Structure – Property Correlation Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  8. Synthesis Pulsed Laser Deposition Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  9. forms of Synthesis PVD (Physical Vapor Deposition) Thermal Evaporation Electro-deposition Magnetron sputtering (DC, RF) Pulsed Laser Deposition MBE (molecular beam epitaxy) CVD (Chemical Vapor Deposition) APCVD (atmospheric CVD) LPCVD (low-pressure CVD) PECVD (Plasma-enhanced CVD) LECVD (Laser-enhanced CVD) MOCVD (Metal-organic CVD) Solution based deposition techniques Sol-gel PAD (Polymer assisted deposition) Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  10. Characterization Characterization, when used in materials science, refers to the use of external techniques to probe into the internal structure and properties of a material. Characterization can take the form of actual materials testing, or analysis, using, in our case, a Scanning Electron Microscope (non-destructive) or a Transmission Electron Microscope (destructive). Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  11. Scanning Electron Microscope (Non-destructive) Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  12. In-situ Transmission Electron Microscope Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  13. Structure – Property Correlation Once the synthesis and analyses are complete, Dr. Wang’s team looks for desirable properties for applications such as: • Thin Film Solid Oxide Fuel Cells • Metallic Thin Films • Bio-compatible films • Soft Films • High temperature tolerance • Radiation tolerance • High temperature super- conductivity • Ferroelectric materials Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  14. Research Activities Participate in all aspects of the research objective: Synthesis, Characterization, Property Correlation Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  15. Research Activities Familiarization with the tools used in this research: Synthesis: Pulsed Laser, Sputter Magnetron Characterization: Transmission Electron Microscope, In-situ TEM, Scanning Electron Microscope, X-Ray Diffraction, Structure-Property Correlation: Vibrating Sample Magnetometer, Physical Property Measurement System, Deposition for High Temp Superconductor Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  16. Research Activities Data Generation and interpretation 2 Weeks with Dr. Zhang, using the same plan, primarily focusing on Mechanical properties. Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  17. Lesson Plan Simple Cubic Face Center Cubic (FCC) Perovskite (cubic) Body Center Cubic (BCC) Hexagonal Close Packed (HCP) Diamond (Cubic) Simple Cubic Face Center Cubic (FCC) Perovskite (cubic) Body Center Cubic (BCC) Hexagonal Close Packed (HCP) Diamond (Cubic) Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  18. Lesson Plan Ideas First week: What I did with Math this Summer PPT I will do one, too, to introduce the idea of Thin Films Special Right Triangles Unit: use the Simple Cube structure of the lattice to ‘measure’ the distance between atoms. Given a specific desirable property related to density, which lattice would you pick? Why? Circle Unit: Planar Density. Deciding Fracture points. Volume Unit: Build models of the three basic Cube structures. Decide which model is densest and provide accurate calculations. When is porosity desirable? Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

  19. I wish to Thank: Dr. Haiyan Wang and Dr. Xinghang Zhang JoonHyan Lee, PhD Candidate Zhenxing Bi, PhD Candidate Logan Lu, PhD Candidate Chenfong Tsai, PhD Candidate Nuclear Power Institute Dr. Haiyan Wang – Functional Thin Film Processing and Characterization Group

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