The simple answer is to determine the ratio of the Raman intensity peaks for amorphous phase vs. crystalline phase, assuming we have an accurate reference that could be used as a source. However, it is more completed, since Raman intensities for amorphous and crystalline phases also show wavelength dependent as can be seen in various publications such as: http://carbon.utsi.edu/downloads/raman_dlc_diamond.pdf
One may also look at the changes in the growth of the crystalline phase vs. amorphous phase as a function of growth conditions, such as:
http://www.iaeng.org/publication/WCECS2009/WCECS2009_pp78-81.pdf
This is assuming there are no other phases carbon bonds present in the spectra, such as nanostructures, diamond like structures, etc. such as:
http://www6.cityu.edu.hk/appkchu/Publications/2006/06.20.pdf
The simple answer is to determine the ratio of the Raman intensity peaks for amorphous phase vs. crystalline phase, assuming we have an accurate reference that could be used as a source. However, it is more completed, since Raman intensities for amorphous and crystalline phases also show wavelength dependent as can be seen in various publications such as: http://carbon.utsi.edu/downloads/raman_dlc_diamond.pdf
One may also look at the changes in the growth of the crystalline phase vs. amorphous phase as a function of growth conditions, such as:
http://www.iaeng.org/publication/WCECS2009/WCECS2009_pp78-81.pdf
This is assuming there are no other phases carbon bonds present in the spectra, such as nanostructures, diamond like structures, etc. such as:
http://www6.cityu.edu.hk/appkchu/Publications/2006/06.20.pdf
Dear Anatoly,
if you have a crystalline structure, you can observe phonon peaks which are typical for the substance. These small sharp peaks as in the last spectrum would refer to a crystalline structure. A broad or continues spectrum like the first spectrum indicates for an amorphous substance. I would recommend to study the literature concerning the phonon spectrum and analyse the different lines.
Yours
R. Mitdank
- Badges
- Science topic
- Similar topics
- Filing