Raman spectrum studies of the glasses in the system Na2OAl2O3P2O5

Fabrication of Li2O–B2O3–P2O5 solid electrolyte by flame-assisted ultrasonic spray hydrolysis for thin film battery

“…Most of major peaks of Raman scattering are common in bulk glass and thin film glass, except minor shifts of peak positions due to different chemical compositions. First of all, the glass with higher proportion of P 2 O 5 in borophosphate glass system normally exhibits a sharp peak at 1170 cm −1 (PO 4 or 4 coordinated phosphorus unit) [13] and the absence of this peak in present study supports the compositional analysis of ICP-MS, where the molar concentration of B 2 O 3 is much higher than P 2 O 5 . Secondly, the peaks at 1010 and 1110 cm −1 , which are assigned to the combination of various P-O groups with (B-O-P) − and (B-O-P) 0 , respectively, are rather broadened and blunt.…”

Effect of B2O3 addition on the thermal properties and density of barium phosphate glasses

“…5) which is mainly due to diborate groups [18,20] and the symmetric stretching vibrations m(A 1 ) of the [PO 4 ] 3À tetrahedron surrounded by B 3+ ions (PO 4 -BO 4 groups) [21,22]. The latter bands may also include other various borophosphate groups [18,22].…”

The effect of composition on the structure of sodium borophosphate glasses

“…The bands at around 1230 cm À1 and 1130 cm À1 can be ascribed to the asymmetric and symmetric stretching of non-bridging m(PO 2 ) of Q 2 groups, respectively. The relatively sharp band at 1020 cm À1 is attributed to the stretching m(P-O) of terminal groups (Q 1 ) and the bands at 680 and 348 cm À1 are due to the symmetric stretching of bridging m s (O-P-O) of Q 2 groups [23]. The low intensity band at 639 cm À1 has been ascribed to vibrations of P-O-B bridges in Q 2 phosphate units [22].…”