SnO2 dendrites–nanowires for optoelectronic and gas sensing applications

Structural and Optical Properties of Nanostructured Fe-Doped SnO2

“…In that region, the peak at 686 cm −1 are assigned to Sn-O-Sn vibrations, respectively [34]. The bands exhibited in the low wave number region 430-620 cm −1 are attributed to the Sn-O stretching vibrations [40]. The Fe doping shifts the positions of the absorption bands (see the inset of Fig.…”

Rice Husk Reuse in the Preparation of SnO2/SiO2Nanocomposite

“…The effects of particle size and disorder in the material lead to a relaxation of the Raman selection rule, and some modes that are usually inactive in Raman become actives. Furthermore, the peaks at 242 cm -1 , 347 cm -1 , 540 cm -1 and 681 cm -1 were assigned to optical phonon modes of SnO 2 , E u (1) TO, E u (2) LO, A 2u TO and A 2u LO of SnO 2 , where LO and TO are longitudinal and transverse optical phonons, respectively 34,[38][39][40] . Peaks at 1354 and 1587 cm -1 are termed D and G bands, respectively 41 , and confirm the presence of amorphous carbon that is typical of the temperature and of the sol-gel route used for obtain the nanocomposite.…”

Growth of β-Ga2O3 nanowires and their photocatalytic and optical properties using Pt as a catalyst

“…Thus, the molecular ratio of O/ Ga of the NWs calculated from the EDAX quantitative analysis data is as that of a bulk b-Ga 2 O 3 crystal. However, it has been stated previously that transition metal oxides prepared by vapor transport method are generally containing excess metal atoms in the interstitial positions of the oxide and cannot strictly reach the stoichiometry in normal conditions [20][21][22][23]. This is clearly seen from the presence of a sharp weight gain (around 1275°C) in the TGA thermogram shown in Fig.…”