A study on optical properties of MnO doped borobismuthate glasses

Pothuganti, Pavan Kumar; Bhogi, Ashok; Kalimi, Muralidhara Reddy; Reniguntla, PadmaSuvarna

doi:10.1016/j.matpr.2020.06.111

Cited by 4 publications

(2 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(1) e calculated values of N i , the interionic distance r i and polaron radius r p of dopant ions can be evaluated by the following equations [17]:…”

Section: Resultsmentioning

confidence: 99%

“…e impact of manganese on the thermal, physical, structural, and optical properties of glasses has been the subject of numerous studies [15,16]. Moreover, manganese ions are well known to have a significant impact on the electric, magnetic, and optical properties of glasses; there seem to be numerous important studies on manganese ions' environment in different inorganic glass systems available [17].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

[Retracted] Effect of Manganese Ions on Spectroscopic and Insulating Properties of Aluminophosphate Glasses

Kassa

Tesfaye

Bulcha

et al. 2021

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

The melt-quenching technique was used to produce 39CdO–10Al2O3-(51-x) P2O5: xMnO glasses (x = 0, 0.1, 0.2, 0.3, and 0.4 wt.%). Various stability factors were calculated and presented from DTA analysis. The stability of the glass network appears to increase with the increase of MnO concentration, according to the findings. IR spectral analysis of these glasses exhibited several symmetrical and asymmetrical bands due to phosphate groups. The observed change in these band intensities with the rise in MnO concentrations, ranging from 0.1 wt.% to 0.4 wt.%, shows an increase in the stability of the glass network. Optical absorption analyses of these glasses revealed an absorption band that shifted from 500 to 488 nm as the concentration of manganese oxide (MnO) increased from 0.1 wt.% to 0.4 wt.%, indicating that Mn2+ ions were gradually converted into Mn3+ ions. EPR spectra of these glasses were characterized by two signals due to Mn2+ and Mn3+ ions. Observations on these signal intensity variations revealed an increase in stability of the glass network with the increase of MnO concentration from 0.1 wt.% to 0.4 wt.%. Parameters, which describe the insulating characteristics, for example, dielectric constant, ε, dielectric loss, tan δ, and AC conductivity σac, were determined in relation to frequency (103 Hz to 105 Hz) and temperature (20°C to 400°C) and presented in the dielectric analysis of these glasses.

show abstract

“…(1) e calculated values of N i , the interionic distance r i and polaron radius r p of dopant ions can be evaluated by the following equations [17]:…”

Section: Resultsmentioning

confidence: 99%