Raman spectrum, Graphene

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Main Question or Discussion Point

can anyone explain what is d band and g band in the Raman spectrum of graphene?
 

Answers and Replies

  • #2
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can anyone explain what is d band and g band in the Raman spectrum of graphene?
It seems like physicists don't care about Raman Spectroscopy. I asked last time if someone could suggest a good book on Raman spec , but there was no single reply.
Anyway,check the answers fro your question here: http://http://rsta.royalsocietypublishing.org/content/366/1863/231.full" [Broken]
 
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  • #3
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They are different ways that the carbon atoms shake, I was trying to find a good picture online but couldn't quickly. But Raman spectrum obviously is a test of the phonon vibrational modes. There are different ways something can resonantly vibrate and there are different energies associated with the different vibrations.
 
  • #4
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Hi all,
I have a forest of carbon nanotubes. They are vertically aligned, like this picture:

n:ANd9GcTfh-Avebnl3-R6X-_ey6fGY2bfrsC42QZqINQAWrz5AlQxsC8&t=1&usg=__NdivXYIhzzFITLeuC6u0rCBGeMk=.jpg


I wonder if it is possible to get Raman spectra from the
a) surface
b) about 50nm from below the surface

of the nanotubes?

As far as I know, Raman spectroscopy is a surface analyzing method. For carbon nanotubes, I assume it should be the same. Now, I wonder if I can get Raman data for the two different positions of the nanotubes mentioned above.

Thank you very much.
 
  • #5
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It seems like physicists don't care about Raman Spectroscopy. I asked last time if someone could suggest a good book on Raman spec , but there was no single reply.
Modern Raman Spectroscopy: A Practical Approach by Ewen Smith. But you need to practice ... (I'm adept of "learn by practice").
 
  • #6
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I am working with Raman spectroscopy but I didn't enter for a long time on this forum.
Tzontonel do you think we can share some information regarding Raman?
 
  • #7
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If yes this is my email adress and I will be happy to discuss about some problems which I have using Raman taranu_a@yahoo.com If you want send me an email with the subject Raman
 
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By the way, two scientists from Univ of Manchester get the Nobel prize for graphene characterization and separation:) I don't know if they used Raman
 
  • #9
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this was for toex
 
  • #10
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It seems like physicists don't care about Raman Spectroscopy. I asked last time if someone could suggest a good book on Raman spec , but there was no single reply.
Anyway,check the answers fro your question here: http://http://rsta.royalsocietypublishing.org/content/366/1863/231.full" [Broken]
I am really interrested in Raman spectrometry because is one of my subject for my PhD.
 
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  • #11
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I am working with Raman spectroscopy but I didn't enter for a long time on this forum.
Tzontonel do you think we can share some information regarding Raman?
http://rdrs.uaic.ro" [Broken] - Romanian Database of Raman Spectroscopy [...]
and I started a new project: http://ramandata.sourceforge.net/" [Broken] (I'm a child in JAVA, so this is another story ...). By the way, if you have time and a internet connection you can make and find anything. Just put a question or maybe you know - Google is you best friend.

Later edit: where are you from? what type of spectrograph do you use? Organic? or Inorganic?
 
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