Multiwavelength Raman spectroscopy analysis of a large sampling of disordered carbons extracted from the Tore Supra tokamak |
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| Affiliation: | 1. Department of Pharmacognosy, Faculty of Pharmacy, Atatürk University, 25240 Erzurum, Turkey;2. Department of Pharmacognosy, Faculty of Pharmacy, Hacettepe University, 06100 Ankara, Turkey;3. Department of Chemistry, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey;1. Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, China;2. CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Nuclear Power Institute of China, Chengdu 610041, China;1. School of Physics & Material Science, Anhui University, Hefei, 230039, China;2. School of Physics & Electronics Science, Fuyang Normal College, Fuyang, 236037, China;1. Department of Basic Sciences, Garmsar Branch, Islamic Azad University, Garmsar, Iran;2. Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, P.O. Box 14665/678, Tehran, Iran;3. Department of Electrical and Computer Engineering, Garmsar Branch, Islamic Azad University, Garmsar, Iran;1. Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA;2. Department of Fundamental Technology Research, R&D Center Kagoshima, Kyocera Corporation, 1-4 Kokubu Yamashita-cho, Kirishima-shi, Kagoshima 899-4312, Japan;3. Research Center for Computational Design of Advanced Functional Materials (CD-FMat), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan |
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| Abstract: | Disordered carbon often exhibit a complex Raman spectrum, with four to six components. Here, a large variety of disordered carbons, forming a collection of samples with a great variety of structures, are analyzed using multi-wavelength Raman microscopy (325.0, 514.5, 785.0 nm). They allow us to extend Raman behaviour known for nano-crystalline graphite to amorphous carbons, (dependence with the excitation wavelength) and other known for amorphous carbons to nano-crystalline graphite, (differentiation of the smallest cluster size probed using different excitation wavelengths). Experimental spectra were compared to simulated spectra, built using known laws, to evidence a new source of broadening. |
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| Keywords: | Raman spectroscopy Amorphous carbons Disordered carbons |
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