1 Crystallite Size Analysis – Nanomaterials This tutorial was created from a presentation by Professor Paolo Scardi and Dr. Mateo Leone from the University of Trento, Italy. The presentation was given at an ICDD workshop held during the 2008 EPDIC-11 Meeting in Warsaw, Poland. Professor Paolo Scardi is shown above on the right. The tutorial includes the theory and examples of the particle size algorithm and display features that are embedded in PDF-4+! It also demonstrates how this simulation can be used for the study of nanomaterials. The ICDD is grateful to both Paolo and Mateo as well as the University of Trento for allowing the ICDD to use their data for this tutorial.
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
1
Crystallite Size Analysis –Nanomaterials
This tutorial was created from a presentation by Professor Paolo Scardi and Dr. Mateo Leone fromthe University of Trento, Italy. The presentation was given at an ICDD workshop held during the2008 EPDIC-11 Meeting in Warsaw, Poland. Professor Paolo Scardi is shown above on the right.
The tutorial includes the theory and examples of the particle size algorithm and display features that
are embedded in PDF-4+! It also demonstrates how this simulation can be used for the study ofnanomaterials.
The ICDD is grateful to both Paolo and Mateo as well as the University of Trento for allowing theICDD to use their data for this tutorial.
2
Note
This presentation can be directly viewedusing your browser.
It can also be saved, and viewed, withMicrosoft® PowerPoint®. The authors have
made additional comments in the notessection of this presentation, which can
be viewed within PowerPoint®, but is notvisible using the browser.
• DDView+ “Particle size” is NOT a profile fitting!• NO other sources of line broadening (e.g., instrumental profile, dislocations, etc.) are considered!
Use this feature only for estimating domain size, especially in nano materials where the line width/shape is dominated by the size effects.
• Gamma distribution is flexible and handy, but in some cases it MIGHT NOT work! Domains might not be spherical!
In all other cases, use a Line Profile Analysis software, e.g., PM2K, based on the WPPM algorithm ([email protected])
CAVEAT!CAVEAT!
45
International Centre for Diffraction Data
12 Campus Boulevard
Newtown Square, PA 19073
Phone: 610.325.9814
Fax: 610.325.9823
Thank you for viewing our tutorial. Additional tutorials are available at the ICDD web site (