- #1
toex
- 9
- 0
can anyone explain what is d band and g band in the Raman spectrum of graphene?
Can You Share Information on Raman Spectroscopy for Graphene?
Click For Summary
Discussion Overview
The discussion centers around Raman spectroscopy, particularly in relation to graphene and carbon nanotubes. Participants seek to understand specific aspects of the Raman spectrum, such as the d band and g band, and explore the feasibility of obtaining Raman spectra from different depths within carbon nanotubes. The conversation also touches on resources for learning about Raman spectroscopy and personal experiences with the technique.
Discussion Character
- Exploratory
- Technical explanation
- Debate/contested
- Homework-related
Main Points Raised
- Some participants inquire about the d band and g band in the Raman spectrum of graphene, suggesting these are related to different vibrational modes of carbon atoms.
- One participant expresses frustration over a perceived lack of interest in Raman spectroscopy among physicists and seeks recommendations for books on the topic.
- Another participant describes Raman spectroscopy as a method that analyzes phonon vibrational modes, indicating that different vibrations correspond to different energies.
- A participant with carbon nanotubes questions whether Raman spectra can be obtained from both the surface and subsurface layers, noting that Raman spectroscopy is typically a surface analysis technique.
- Several participants share their personal experiences and projects related to Raman spectroscopy, including a request for collaboration and information sharing.
- There is mention of Nobel Prize-winning research related to graphene characterization, with uncertainty about whether Raman spectroscopy was employed in that work.
Areas of Agreement / Disagreement
Participants express varying levels of interest and knowledge about Raman spectroscopy, with some seeking information while others share personal insights. There is no clear consensus on the specifics of the d band and g band or the capabilities of Raman spectroscopy regarding carbon nanotubes.
Contextual Notes
Participants reference various resources and personal projects, but there are limitations in the discussion regarding the depth of knowledge about Raman spectroscopy and its applications. Some assumptions about the technique's capabilities remain unverified.
Who May Find This Useful
Individuals interested in Raman spectroscopy, particularly in the context of graphene and carbon nanotubes, as well as those seeking resources for further study or collaboration in this area.
- #2
mccoy1
- 116
- 0
toex said:
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"
Last edited by a moderator:
- #3
AndersonMD
- 50
- 2
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
Si14
- 75
- 0
Hi all,
I have a forest of carbon nanotubes. They are vertically aligned, like this picture:
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.
I have a forest of carbon nanotubes. They are vertically aligned, like this picture:
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
Tzontonel
- 9
- 0
mccoy1 said:
Modern Raman Spectroscopy: A Practical Approach by Ewen Smith. But you need to practice ... (I'm adept of "learn by practice").
- #6
mjkigat2
- 7
- 0
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?
Tzontonel do you think we can share some information regarding Raman?
- #7
mjkigat2
- 7
- 0
If yes this is my email address 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
- #8
mjkigat2
- 7
- 0
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
mjkigat2
- 7
- 0
this was for toex
- #10
mjkigat2
- 7
- 0
mccoy1 said:
I am really interrested in Raman spectrometry because is one of my subject for my PhD.
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- #11
Tzontonel
- 9
- 0
mjkigat2 said:
http://rdrs.uaic.ro" - Romanian Database of Raman Spectroscopy [...]
and I started a new project: http://ramandata.sourceforge.net/" (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?
Last edited by a moderator:
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