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NEM Lab.NEM Lab.
Nano-electronic materials Lab.Southern Taiwan University of Science and Technology
Adviser Adviser :: Kuen-Hsien Wu
ReporterReporter: Jai-Ming Tang: Jai-Ming Tang
2013/12/24
XRD (X-ray diffractometer)X光繞射儀
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NEM Lab.NEM Lab.
Nano-electronic materials Lab.Southern Taiwan University of Science and Technology
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Outline
1. Introduction
2. Principles
3. Application
4. Conclusion
5. References
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NEM Lab.NEM Lab.
Nano-electronic materials Lab.Southern Taiwan University of Science and Technology Introduction
The Braggs were awarded the Nobel Prize in physics in 1915 for their work in determiningcrystal structures beginning with NaCl, ZnS and diamond.
Bragg's law was used to explain the interference pattern of X-rays scattered by crystals, diffraction has been developed to study the structure of all states of matter with any beam, e.g., ions, electrons, neutrons, and protons.
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NEM Lab.NEM Lab.
Nano-electronic materials Lab.Southern Taiwan University of Science and Technology
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IntroductionWhat is X-ray Diffraction
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NEM Lab.NEM Lab.
Nano-electronic materials Lab.Southern Taiwan University of Science and Technology
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Introduction
Why XRD?• Measure the average spacings between layers or rows of atoms• Determine the orientation of a single crystal or grain• Find the crystal structure of an unknown material• Measure the size, shape and internal stress of small crystalline regions
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Principles
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Principles
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Principles
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Principles
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Principles
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Principles
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Principles
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Nano-electronic materials Lab.Southern Taiwan University of Science and Technology
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Application
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Conclusion
• Non-destructive, fast, easy sample prep• High-accuracy for d-spacing calculations• Can be done in-situ• Single crystal, poly, and amorphous materials• Standards are available for thousands of material systems
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References
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References
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Thanks for your attention !
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NEM Lab.NEM Lab.
Nano-electronic materials Lab.Southern Taiwan University of Science and Technology
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NEM Lab.NEM Lab.
Nano-electronic materials Lab.Southern Taiwan University of Science and Technology