Structural, optical and thermal investigations on Dy3+ doped NaF–Li2O–B2O3 glasses

Concentration dependent structural, optical and thermal investigations of Dy3+-doped sodium fluoroborate glasses

“…It is interesting to note that in the Dy 3+ :BNLD glasses the intensity of blue band is more than that of the yellow band. Such a behavior is observed in the case of NaF-Li 2 O-B 2 O 3 glasses [34] reported by Karunakaran et al Table 4. The energy positions of the intense 6 H 13/2 band show small variation (17,346À17,361 cm À 1 ) indicating the interactions of the concentration dependent Dy 3 + ions with the glass compositions.…”

Effect of Dy3+ ions concentration on optical properties of lead borosilicate glasses for white light emission

“…17 Table 6. From Table 6, it is observed that, the e values of the present glasses are found to be higher than those of other Dy 3+ doped glasses [25,26,[31][32][33]28,[34][35][36].…”

“…From the absorption spectrum, six peaks are identified at 752, 800, 901, 1088, 1268 and 1673 nm corresponding to the 6 H 15/2 → 6 F 3/2 , 6 F 5/2 , 6 F 7/2 , 6 F 9/2 , 6 F 11/2 and 6 H 11/2 transitions respectively. The assignment of these absorption transitions has been done according to the earlier reports of Dy 3+ ions in different glasses [15][16][17][18][19][20]. The observed band positions along with their assignments for the Dy 1.0 :LBS glass are represented in Table 3.…”

Structural and luminescence behaviour of Er3+ doped telluro-fluoroborate glasses

“…The broad shoulder observed at around 3450 cm -1 in all the glasses are mainly due to the fundamental stretching vibration of hydroxyl groups [17,20,21]. The band around 1650 cm -1 is due to the stretching vibrations of borate triangles with non-bridging oxygens [22]. The presence of B-O stretching vibration of BO 3 units was identified by observing a peak at 1359 cm -1 [17].…”