Reddish-orange emission from Pr3+ doped zinc alumino bismuth borate glasses

Praseodymium doped Zinc Alumino Bismuth Borate (ZnAlBiB) glasses were prepared by melt quenching technique and characterized by optical absorption and emission studies. The glassy nature of these glasses has been confirmed through XRD spectral measurements. From the absorption spectra, the Judd–Ofel...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2013-11, Vol.428, p.36-42
Main Authors: Mahamuda, Sk, Swapna, K., Srinivasa Rao, A., Sasikala, T., Rama Moorthy, L.
Format: Article
Language:English
Subjects:
Amorphous materials, glasses and other disordered solids
Bismuth
Borates
Chromaticity
Colour co-ordinates
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Emission
Emission analysis
Emission cross-section
Emission spectra
Exact sciences and technology
Glass
Glasses
JO parameters
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Photoluminescence
Physics
Praseodymium
Quenching
Radiative properties
Zinc
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Summary:Praseodymium doped Zinc Alumino Bismuth Borate (ZnAlBiB) glasses were prepared by melt quenching technique and characterized by optical absorption and emission studies. The glassy nature of these glasses has been confirmed through XRD spectral measurements. From the absorption spectra, the Judd–Ofelt intensity parameters Ωλ (λ=2, 4 and 6) and other radiative properties like transition probability (AR), radiative lifetimes (τR) and branching ratios (βR) have been evaluated. Emission spectra were measured for different concentrations of Pr3+ ions doped glasses by exciting the glasses at 445nm. The intensity of Pr3+ emission spectra increases from 0.1 to 1mol% and beyond 1mol% concentration quenching is observed. The suitable concentration of Pr3+ ions in ZnAlBiB glasses to act as a good lasing material at reddish-orange wavelength (604nm) region has been discussed by measuring the emission cross-sections for the intense emission transition 1D2→3H4. The CIE chromaticity co-ordinates were also evaluated from the emission spectra for all the glasses to understand the suitability of these materials for reddish-orange emission. From the measured emission cross-sections and CIE chromaticity co-ordinates, it was found that 1mol% of Pr3+ is aptly suitable for the development of visible reddish-orange lasers.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2013.07.010