2017
DOI: 10.1016/j.jnoncrysol.2017.03.009
|View full text |Cite
|
Sign up to set email alerts
|

The effect of SiO2 content on structural, physical and spectroscopic properties of Er3+doped B2O3–SiO2–Na2O–PbO–ZnO glass systems

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

0
5
0

Year Published

2017
2017
2024
2024

Publication Types

Select...
8

Relationship

0
8

Authors

Journals

citations
Cited by 40 publications
(5 citation statements)
references
References 41 publications
0
5
0
Order By: Relevance
“…At a given CaO content, both the density and molar volume decrease with increasing K value. 27 Results in Figure 4 show that the thermal expansion coefficient (a) decreases with increasing K value and CaO content in the LCBS glasses. The measured refractive index (n) at a wavelength of 589.3 nm decreases with increasing K value but increases with increasing CaO content, as shown in Figure 3.…”
Section: Resultsmentioning
confidence: 94%
“…At a given CaO content, both the density and molar volume decrease with increasing K value. 27 Results in Figure 4 show that the thermal expansion coefficient (a) decreases with increasing K value and CaO content in the LCBS glasses. The measured refractive index (n) at a wavelength of 589.3 nm decreases with increasing K value but increases with increasing CaO content, as shown in Figure 3.…”
Section: Resultsmentioning
confidence: 94%
“…The optical properties of all samples were studied by UV–vis and NIR (200 nm < λ < 1200 nm) diffuse reflectance and absorption spectra, and the spectra (Kubelka–Munk transformed reflectance) are displayed in Figure . The spectra of Er 3 Ga 5 O 12 show a number of absorption bands, which are at 355.6, 362.5, 378.3, 406.2, 441.2, 449.9, 486.7, 525.0, 542.5, 652.6, 787.2, and 962.0 nm, originating from the Er 3+ transitions between the ground state ( 4 I 15/2 ) and excited states ( 4 G 7/2 , 4 G 9/2 , 4 G 11/2 , 2 H 9/2 , 4 F 3/2 , 4 F 5/2 , 4 F 7/2 , 2 H 11/2 , 4 S 3/2 , 4 F 9/2 , 4 I 9/2 , and 4 I 11/2 ). Compared with other transitions, the 4 I 15/2 → 2 H 11/2 transition has a high intensity, complies with the selection rules |Δ L | ≤ 2, |Δ J | ≤ 2, and Δ S = 0, and is known as a hypersensitive transition. , Figure a shows that the changes in the absorption behavior of Cr 3+ -doped samples are the additions of two wide absorption bands at 441.2 and 612.4 nm, which were related to Cr 3+ d–d transitions, , and the absorption intensity gradually increased with an increase in the Cr 3+ doping amount. The absorption bands at 441.2 and 612.4 nm correspond to 4 A 2g → 4 T 1g and 4 A 2g → 4 T 2g transitions of Cr 3+ in the octahedral site, respectively. On the basis of the optical properties, the colors of Cr 3+ -doped samples are attributed to the Cr 3+ d–d transition in purple and orange regions, and the green color gradually became deeper with an increase in the Cr 3+ doping amount, findings in agreement with the absorption band for the d–d transition becoming gradually stronger. Figure b shows the absorption behavior of Mn 3+ -doped samples.…”
Section: Results and Discussionmentioning
confidence: 99%
“…34−38 Compared with other transitions, the 4 I 15/2 → 2 H 11/2 transition has a high intensity, complies with the selection rules |ΔL| ≤ 2, |ΔJ| ≤ 2, and ΔS = 0, and is known as a hypersensitive transition. 39,40 Figure 7a shows that the changes in the absorption behavior of Cr 3+ -doped samples are the additions of two wide absorption bands at 441.2 and 612.4 nm, which were related to Cr 3+ d−d transitions, 41,42 and the absorption intensity gradually increased with an increase in the Cr 3+ doping amount. 43−45 The absorption bands at 441.2 and 612.4 nm correspond to 4 A 2g → 4 T 1g and 4 A 2g → 4 T 2g transitions of Cr 3+ in the octahedral site, respectively.…”
Section: Chemistry Of Materialsmentioning
confidence: 99%
“…The non-existence of Bragg's peak in the spectrograms ( Fig.1) clearly indicated that the studied samples are non-crystalline and homogeneous in nature. Moreover, the board humps around 2 indicate that there is a existence of short range order in the glasses [12].…”
Section: A X-ray Diffractionmentioning
confidence: 97%