Sol-gel synthesis and features of the structure of Au-In2O3 nanocomposites

Physicochemical Analysis of Nanoscale Metal Oxide Thin Film Precursors via Infrared Spectroscopic Ellipsometry

“…75,88,91 The peak at ∼1600 cm −1 is attributed to H−O−H bending (H 2 O). 75,76 The presence of H 2 O, (−OH), as well as (NO 3 − ) ions are in good agreement with step 1 annealing conditions as a temperature of 150 °C under ambient conditions promotes water absorption and limits (NO 3 − ) ion dissociation. 88 The stabilized Zn(CH 3 COO) 2 (step 1) case, presented in Figure 3e−h, is not largely dissimilar.…”

“…The sharp band at 370−550 cm −1 is assigned to In−O, 75,76,91,92 followed by In−OH at 600− 1000 cm −1 . 76,91,93 The presence of (NO 3 − ) is represented by a double peak in the spectral range of 1300−1400 cm −1 , 72−74,83 which originates from the precursor salt. The origin of this peak is still under debate with free (NO 3 − ) and (NO 3 − •H 2 O) complexes being the two main interpretations.…”

“…For In(NO 3 ) 3 on Si, the single feature detected at 469 cm −1 in raw data (Ψ and Δ of Figure 2a) reveals a single peak in the absorption spectrum of In(NO 3 ) 3 (Figure 3a), assigned to the In−O phonon mode. 75,76,91,92 However, the IRSE analysis of the stabilized In(NO 3 ) 3 on top of TiN, Al, and Au (Figure 2b−d peaks that are associated with various vibrational modes (see Figure 3b−d, respectively). The sharp band at 370−550 cm −1 is assigned to In−O, 75,76,91,92 followed by In−OH at 600− 1000 cm −1 .…”

“…75,76,91,92 However, the IRSE analysis of the stabilized In(NO 3 ) 3 on top of TiN, Al, and Au (Figure 2b−d peaks that are associated with various vibrational modes (see Figure 3b−d, respectively). The sharp band at 370−550 cm −1 is assigned to In−O, 75,76,91,92 followed by In−OH at 600− 1000 cm −1 . 76,91,93 The presence of (NO 3 − ) is represented by a double peak in the spectral range of 1300−1400 cm −1 , 72−74,83 which originates from the precursor salt.…”

Sol–gel foam based Cr(iii)–Sn(iv) doped indium oxide: characterizations of morphological, structural and magnetic properties

“…42 The other four peaks observed at y217 nm, 260 nm, 280 nm and 315 nm may be due to charge transfer between O 22 ligands and Sn 4+ , transfer between O 22 ligands and the In 3+ cations in the co-ordination sphere of the oxygen atoms, a hexa-coordinated polymeric Sn-O-Sn type moiety and an excitonic transition of an ITO nanocluster (as in ITO film), respectively. 37,43,44 However, we observed a slight shift in the peak positions with the change in baking temperatures, which may be due to the changes in the cluster sizes and morphologies of the specimens with temperature.…”