AnnealingThe results of measurements of the Raman spectra in the same group of monolayer graphene samples, successively subjected to irradiation with different ions, prolonged aging, and annealing under different conditions, are considered. Changes in the position, width, and intensity of the Raman ...
In sequence, their rather rich Raman spectra composed of many peaks induced by single- and multiple-resonance effects are introduced. The properties of the main Raman peaks are then described, including their dependence on both materials structure and external factors, like temperature, pressure, ...
Krishnan, R. S. Raman spectrum of quartz.Nature115, 452 (1945). ArticleADSGoogle Scholar Venezuela, P., Lazzeri, M. & Mauri, F. Theory of double resonant Raman spectra in graphene: Intensity and line shape of defect-induced and two-phonon bands.Phys. Rev. B84, 035433 (2011). ...
The intensity features of graphene Raman spectra could be found at ~1590 and ~2680 cm−1, corresponding to the G and 2D modes, respectively. The high 2D-to-G intensity ratio (>1) and symmetric shape of the 2D peak indicate that the graphene is monolayer. For Raman mapping, the ...
N. Temperature dependence of the Raman spectra of graphene and graphene multilayers. Nano Lett. 2007, 7, 2645–2649. Article CAS PubMed ADS Google Scholar Balandin, A. A.; Ghosh, S.; Bao, W. Z.; Calizo, I.; Teweldebrhan, D.; Miao, F.; Lau, C. N. Superior thermal ...
The Raman spectra of as-produced graphene samples are shown in Fig.3. The monolayer and 3-layer graphene samples are plotted in black solid line and red short dash line, respectively. From the two curves, we can see three typical peaks of graphene around 1340 cm, 1590 cm and 2660...
allergic reactions in red tattoos raman spectroscopy for ´fingerprint´ detection of chemical risk spectra in tattooed sk.过敏反应在红色纹身拉曼光谱的指纹检测化学风险谱纹身皮肤和罪魁 热度: Closed loop control of lactate concentration in mammalian cell culture by Raman spectroscopy leads to improved ...
(h) Raman spectra of GNRs of different sizes [128]. (i) STM image of chevron-type GNRs [129]. (j) STM image of 9-AGNRs [74]. Liu et al. synthesised GNR thin films using CVD as electrode materials for a miniature supercapacitor (MSC) (Fig. 8e–h) [128]. This miniature device...
Raman spectroscopy measurements were performed using a Witec spectrograph equipped with a 488 nm laser excitation line. For the measurements, Raman spectra were acquired using a 50× objective and a 600 grooves per nm grating; laser power was kept below 1.5 mW to avoid sample heating. TEM...
(a) In situ Raman spectra of chlorinated graphene during the phenylation process on the opposite side of the chlorine groups. Change of ID/IG in response to the phenylation time under different initial chlorination extent (b) and varied functionalities (c) on the opposite side. Full size imag...