Green Emission of Tellurite Based Glass Containing Erbium Oxide Nanoparticles

Table 2

Assignment of infrared transmission bands of [(TeO₂)_0.70(B₂O₃)_0.30]_0.7(ZnO)_0.30.95(Er₂O₃)_0.05.

Number	Position (cm^−1)	Assignments
1	1331	Trigonal B-O bond stretching vibrations in isolated trigonal BO3 units
2	1223	Trigonal B-O bond stretching vibrations of BO3 units from boroxyl groups
3	645	TeO3 group exists in tellurite containing glass