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The first order Raman spectrum of isotope labelled nitrogen-doped reduced graphene oxide
Umeå University, Faculty of Science and Technology, Department of Physics. (Nano for Energy)
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The topic of this thesis is the study of nitrogen functionalities in nitrogen-doped reduced graphene oxide using Raman spectroscopy. Specifically, the project set out to investigate if the Raman active nitrogen-related vibrational modes of graphene can be identified via isotope labelling. Previous studies have used Raman spectroscopy to characterise nitrogen doped graphene, but none has employed the method of isotope labelling to do so. The study was conducted by producing undoped, nitrogen-doped and nitrogen-15-doped reduced graphene oxide and comparing the differences in the first-order Raman spectrum of the samples. Results of this study are inconclusive. However, some indications linking the I band to nitrogen functionalities are found. Also, a hypothetical Raman band denoted I* possibly related to \spt{3} hybridised carbon is introduced in the same spectral area as I. This indication of a separation of the I band into two bands, each dependent on one of these factors could bring clarity to this poorly understood spectral area. As the results of this study are highly speculative, further research is needed to confirm them and the work presented here serves as a preliminary investigation.

Place, publisher, year, edition, pages
Keyword [en]
graphene, reduced graphene oxide, reduced graphite oxide, nitrogen, doping, raman, spectroscopy, isotope labelling
National Category
Other Physics Topics
URN: urn:nbn:se:umu:diva-116699OAI: diva2:905266
Subject / course
Examensarbete i teknisk fysik
Educational program
Master of Science Programme in Engineering Physics
2016-01-15, Universitetsklubben, Umeå, 11:00 (English)
Available from: 2016-02-22 Created: 2016-02-10 Last updated: 2016-02-22Bibliographically approved

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Dahlberg, Tobias
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