Laser Raman Spectroscopy of Diamond

O’Brien, Leah C.; Kubicek, R. L.; O’Brien, James J.

doi:10.1021/ed071p759

Cited by 9 publications

(10 citation statements)

References 13 publications

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“…According to the Handbook of Raman Spectroscopy and Dresselhaus et al, Raman spectroscopy can be used as a guide to describe different carbon structures, such as diamond-like carbon which has C-C sp 3 bonding, graphitic carbon which has sp 2 bonding, and glassy/amorphous carbon which has C-H and disordered mixed bonds [25,30,31]. The peaks found around 1350-1365 cm −1 are called -peaks, resulting from the disorderly network of sp 2 and sp 3 carbon clusters, whereas the peaks found around 1580-1620 cm −1 are called -peaks as a result of graphite, and finally the peak found at 1332 cm −1 is the diamond peak [30][31][32]. The most interesting finding from our experiment concerned the calculated intensity of the -peak to -peak ratios ( / ).…”

Section: Raman Spectrograph Resultsmentioning

confidence: 99%

A Comparative Study of Three Different Chemical Vapor Deposition Techniques of Carbon Nanotube Growth on Diamond Films

Quinton

Barnes

Varanasi

et al. 2013

Journal of Nanomaterials

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This paper compares between the methods of growing carbon nanotubes (CNTs) on diamond substrates and evaluates the quality of the CNTs and the interfacial strength. One potential application for these materials is a heat sink/spreader for high-power electronic devices. The CNTs and diamond substrates have a significantly higher specific thermal conductivity than traditional heat sink/spreader materials making them good replacement candidates. Only limited research has been performed on these CNT/diamond structures and their suitability of different growth methods. This study investigates three potential chemical vapor deposition (CVD) techniques for growing CNTs on diamond: thermal CVD (T-CVD), microwave plasma-enhanced CVD (MPE-CVD), and floating catalyst thermal CVD (FCT-CVD). Scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (TEM) were used to analyze the morphology and topology of the CNTs. Raman spectroscopy was used to assess the quality of the CNTs by determining theID/IGpeak intensity ratios. Additionally, the CNT/diamond samples were sonicated for qualitative comparisons of the durability of the CNT forests. T-CVD provided the largest diameter tubes, with catalysts residing mainly at the CNT/diamond interface. The MPE-CVD process yielded non uniform defective CNTs, and FCT-CVD resulted in the smallest diameter CNTs with catalyst particles imbedded throughout the length of the nanotubes.

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Section: Raman Spectrograph Resultsmentioning

confidence: 99%

A Comparative Study of Three Different Chemical Vapor Deposition Techniques of Carbon Nanotube Growth on Diamond Films

Quinton

Barnes

Varanasi

et al. 2013

Journal of Nanomaterials

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“…This experimental technique is now within the reach of most undergraduate institutions. In addition, its similarity and complementarity with conventional infrared spectroscopy (both are commonly termed vibrational spectroscopy) facilitates spectral interpretation, indicating that Raman spectroscopy as a very efficient tool for educational purposes [27][28][29][30].…”

Section: Resultsmentioning

confidence: 99%

Simple and efficient method for detection of traces of rare earth elements in minerals by raman spectroscopy instrumentation

Makreski

Jovanovski

Runčevski

et al. 2011

Maced. J. Chem. Chem. Eng.

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As an effort to increase the knowledge about the abundance, distribution and geochemical behaviorof the rare earth elements (REEs), a simple and effective Raman spectroscopic method for detection of REEsin minerals is proposed. The proposed method based on Raman spectroscopy provides a lower detectionlimit for REEs compared to the modern analytical techniques. It could be practiced even in laboratoriesequipped only with FT-Raman instrumentation. This simple, inexpensive, rapid and straightforward Ramanmethod for REEs detection in minerals is a convenient experiment for undergraduate and postgraduatelaboratory courses.

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“…Raman spectroscopy has been the subject of several recent articles in this Journal (1)(2)(3)(4)(5)(6)(7). Most undergraduate physical chemistry texts discuss Raman scattering, and laboratory experiments with pure substances such as CCl 4 as samples are well established (8), but relatively few undergraduate students currently get lab experience with this important technique (9).…”

Section: Rationalementioning

confidence: 99%