Thin Film Growth Applications -The Art of laying apples-

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Thin Film Growth Applications-The Art of laying
apples-

• Jarrod G Collins
• Klein Forest High School, Houston TX
• Klein ISD
• Faculty Mentor Dr. Haiyan Wang, Assistant
  Professor Electrical Engineering

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How is thin film fundamental to our lives?

• Energy
• Protection
• Electronics
• Decoration
• Conducting
• Storage

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What kinds of research?

• Types of Engineering
• Electrical Engineering
• Materials Science
• Mechanical Engineering
• Background on research area
• Thin Film Deposition It is a thin layer of
  coating on a substrate or template.

• Research areas
• Microelectronics
• Solid oxide fuel cells
• Solar Panels
• Super conductors
• Structure Applications

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Dr. Haiyan Wang, Assistant ProfessorDr.
Haiyan WangAssistant ProfessorElectrical and
Computer Engineering Texas A M
Universitywangh_at_ecetamu.eduPhone
979-845-5082Office 723 Brown

• Education and appointments
• B.S. and M.S. in Materials Science and
  Engineering in China
• Ph.D. in Materials Science and Engineering, 2002,
  North Carolina State University (Raleigh, NC)
• Postdoc (03-04) and Staff Member (05) at Los
  Alamos National Laboratory
• Assistant Professor in Electrical and Computer
  Engineering (Jan. 2006-August 2010)
• Staff Member at Los Alamos National Lab (summer
  2006)

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Real World Applications of thin film technology

• Microelectronics
• (cpu processors, cell phones, ipod, watches)
• Solar Panels, Fuel Cells
• AR (anti-reflective coatings)On cars, jewelry,
  mirrors, night vision goggles
• Corrosion/oxidation resistance on cutting tools,
  chemical factories

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Research Objective

• Synthesis of Thin film using (PLD)
• Microstructure characterization using (TEM)
• Property characterization using other tools
• such as SEM, XRD, VMS

• Our objective is to prepare thin film samples on
  clean single crystal substrates and utilize (PLD)
  to deposit thin film layers and analyze growth
  patterns

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Overview of Thin Film Deposition Techniques
CVD (Chemical Vapor Deposition) APCVD
(atmospheric CVD) LPCVD (low-pressure CVD) PECVD
(Plasma-enhanced CVD) LECVD (Laser-enhanced
CVD) MOCVD (Metal-organic CVD)
PVD (Physical Vapor Deposition) Thermal
Evaporation Electro-deposition Magnetron
sputtering (DC, RF) Pulsed Laser Deposition MBE
(molecular beam epitaxy)
Solution based deposition techniques Sol-gel PAD
(Polymer assisted deposition)
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The art of laying applesThe research is
designed to grow thin films in an ordered pattern
with similar arrangement and symmetry. When
following the ordered pattern, a mismatch is not
likely to occur.
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What causes thin film to grow?

• Kinetic Energy
• Pressure
• Temperature
• Laser Energy
• Laser Frequency
• Type of material
• Type of Substrate
• The following Parameters will result in a desired
  organized, carefully placed, high quality layer
  of thin film

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Research Cycle (Data Generation)
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Overview of MethodsSynthesisPulsed Laser
DepositionLaser absorbs energyLaser evaporates
targetand deposits to substrate
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CharacterizationIn-Situ TEM nanoindentationMake
TEM samplemake indentation (inside
microscope)Analyze characteristics
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Structure Property Correlation

• Vibrating sample magnetometer
• used to measure magnetic properties
• Physical property measurement system
• view film properties make a decision as to
  what changes need to be made in order to get
  higher quality films

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Structure Property Correlation

• X-ray Diffraction (XRD)
• Method of determining the arrangement of
  atoms in a crystal
• Scanning Electron Microscope (SEM)
• Powerful type of microscope, which can see
  objects 10,000 bigger

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SummaryThe goal of our research is to
grow high quality thin films by sustaining an
ordered foundation. The substrate needs to be a
high quality single crystal with the same lattice
structure and the same arrangement pattern at the
right time under right conditions. Classroom
ideas thin film creation sunscreen concept
experimentpainting display experiment
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Acknowledgements

• National Science Foundation
• Nuclear Power Institute (NPI)
• Texas Workforce Commission (TWC)
• Chevron corporation
• Texas AM University Engineering department
• Dr. Wang and Dr. Zhang
• Zhenxing Bi Ph.D. Candidate
• Joon Hwan Lee Ph.D. Candidate
• Logan Lu Ph.D. Candidate
• Chenfong Tsai Ph.D. Candidate
• The entire E3 faculty
• All of the E3 Participants

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Any Questions?