However, The PL peak at 565 nm from nanocrystals is not exhibited before neutron irradiation due to the quenching of the GeO4 tetrahedra, instead of GeO2 due to Ge insufficiency. A Raman peak position 262 cm−1 corresponding to GeO4 tetrahedra, was formed after ion-implantation and ...
Interestingly, the Raman peaks of TAC in TAC@SiO2@Al2O3 appear blue shift and move to a position with higher Raman shift, which will be caused by the high bond energy of the Si–O and Al–O bonds [38]. For TAC@SiO2, there are roughly five Raman shifts in the Raman peak ...
The position and linewidth of the crystalline-Ge Raman peak found approximately 300 cm−1 after annealing at 550 °C remain almost unchanged by further increasing the annealing temperature up to 1100 °C. The annealing behaviours of Raman peaks including the extra 229, 435/485 cm−1 ones, ...
et al. Nanohybrids of magnetically intercalated optical metamaterials for magnetic resonance/raman imaging and in situ chemodynamic/photothermal therapy. ACS Appl. Bio. Mater. 4, 5742–5752. https://doi.org/10.1021/acsabm.1c00510 (2021). 43. Tanhaei, M., Mahjoub...
The peak position of this diffuse feature does not change as pressure decreases. Fig. 2 Multiplot of XRD data. Stishovite peaks are labeled at the top; ambient condition positions (gray dashed lines). Traces are clustered according to maximum applied pressure with time delays listed on shock-...
Additionally, weak diffraction peaks are often overshadowed by the background noise in a smooth powder XRD pattern; in contrast, a couple of diffraction spots contribute to most of the intensity of a diffraction peak in a multigrain pattern, and, therefore, weak reflections, such as the ﹛421...
A value and a sign of the stress in the MQW layers were monitored by the characteristics of the nc鈥揝i related Raman peak, i.e. spectral position and full-width-on-half-maximum of the peak. Our results show that the parameters of the stress could be largely tailored by changing ...
The shape and structure of the profile, peak position of the resonant absorption, and structure of its red wing are subject of numerous reports [13, 15]. In short, the nature of the effects lies in the electronic structure of the Au NPs in which the intra- and interband transitions are...
When the annealing temperature is increased to 800 °C, a sharp peak near 520 cm−1 emerges, which indicates the formation of Si NCs. As shown in the inset of Fig. 1, The Raman spectra can be decomposed into two Gaussian peaks: an intermediate component located at ~502 cm...
Raman spectrum of the anatase TiO2/SiO2 nanocomposite coating elaborated from a 2 µL·min−1 HMDSO delivery rate on a PEN substrate. The Raman spectrum of an uncoated PEN foil is also plotted as a reference. Full size image Characterization of the anatase TiO2/SiO2 nanocomposite coating ...