Structure and DC conductivity of lead sodium ultraphosphate glasses

Structural and acoustical studies of lead sodium borate glasses

“…Therefore, during the past two decades, many efforts have been devoted to help realize the role of PbO in glass networks, specifically the wide range of PbO-B 2 O 3 glasses with PbO varying between 10 and 85 mol% [7][8][9][10]. For * Tel.…”

Growth and Characterization of Novel System of Nanoparticles Embedded in Phosphate Glass Matrix

“…The two bands appeared at 2922 and 2372 cm −1 are related to ethylene glycol which adsorbed on the surface of samples during the smoothing process. The absorption band appeared at 1269 cm −1 corresponding to a P = O vibration band [29], the ‫ע‬ as (PO 2 ) -asymmetric stretching vibrations at 1170 cm −1 [30], the ν as (PO 3 ) asymmetric stretching mode at 1079 cm −1 , the ν s (PO 3 ) symmetric stretching mode at 974 cm −1 [31], the ν as (P-O-P) groups at 906 cm -1 , the ν s (P-O-P) groups at 775 cm −1 and 731 cm −1 [32] and the band at 506 cm −1 due to the deformation mode of (P-O -) groups [33] overlapped with the third longitudinal optical phonon (3LO) of CdTe. There are some differences between the infrared absorption bands for S1 and S2 samples which reflect some important information about the effect of adding ZnO to the glass matrix.…”

An optical and structural investigation into CdTe nanocrystals embedded into the tellurium lithium borophosphate glass matrix

“…The observed infrared bands for the doped and undoped glass samples are shown in Figure 3, and the peak assignments are given in Table 2 ν (Te-O-Te) bending modes in TeO 4 groups [16] ν (B-O-B) bending modes [17] Deformation mode of P-O − groups [18] ν (TeO 4 ) [19,20] ν (TeO 3 ) [21] ν (TeO 2 ) [22,23] νs(POP) [24] νas(POP) [24] v (BO 4 ) [25] νs (PO 3 ) (chain end groups) [26] and ν (P-O-) stretching modes [27][28][29] v (BO 4 ) [30] νas (PO 3 ) [26] Ionic B-O stretching νas(PO 2 ) ν(P=O)in and νas(PO 2 ) in [24] ν(P=O) and (v (BO3) (v (BO 3 ) [31,32] modified with doping by CdTe nanoparticles. In addition, the appearance of the (v P==O) and (v (BO 3 ) bands may indicate the absence of a cyclic structure in the glass, which is due to the growth of nanoparticles.…”