Laser Based Fabrication of Graphene

Magnetic phase transition from paramagnetic in Nb2AlC-MAX to superconductivity-like diamagnetic in Nb2C-MXene: an experimental and computational analysis

“…This ratio is 1.6 for MAX, and it varies between 0.89 to 1.33 for MXene at different temperatures. 45 This shows that the sample obtained and carried forward at 55 C is more ordered, with less defect density as compared to the other samples synthesized at different temperatures. The Fourier transform infrared (FTIR) spectra of Nb 2 C etched at different temperatures, i.e., 55 C, 65 C, 75 C and 85 C, and are compared to the FTIR spectrum of pure MAX (Fig.…”

“…44 The ratio of intensity of I D to I G tells us about the crystallinity defects, showing more ordered MXene phase than the MAX phase. 45,46 The I D /I G ratio of intensities in Fig. 3c tells us about the crystalline defects, which shows more ordered MXene phases than the MAX itself.…”

UV and Visible light photodegradation of methylene blue with graphene decorated titanium dioxide

“…Figure 2 shows the Raman spectra for the graphene samples; notice that well defined bands centered at 1340 and 1592 cm −1 corresponding to the graphene D and G bands respectively [19,20], can be observed. Furthermore, the 2D and D+G bands centered at 2673 and 2923 cm −1 , respectively [19,20], can be observed which is indicative of the existence of high quality graphene. No substantial changes are presented for increasing temperature, which is consistent with the data obtained from XRD measurements.…”

Epitaxial growth of graphene thin film by pulsed laser deposition

“…2. Wang et al [22] have explained the formation mechanism of graphene films on the metal surface. The deposition temperature is one of the most important parameters in epitaxial growth.…”