Investigations of optical and luminescence features of Sm3+ doped Li2O-MO-B2O3 (M =Mg/Ca/Sr/Ba) glasses mixed with different modifier oxides as an orange light emitting phosphor for WLED's

K. Kirdsiri; R. Raja Ramakrishna; B. Damdee; H. J. Kim; S. Kaewjaeng; S. Kothan; J. Kaewkhao

doi:10.1016/j.jallcom.2018.03.266

Investigations of optical and luminescence features of Sm³⁺ doped Li₂O-MO-B₂O₃ (M =Mg/Ca/Sr/Ba) glasses mixed with different modifier oxides as an orange light emitting phosphor for WLED's

K. Kirdsiri, R. Raja Ramakrishna, B. Damdee, H. J. Kim, S. Kaewjaeng, S. Kothan, J. Kaewkhao

Research output: Contribution to journal › Article › peer-review

71 Scopus citations

Abstract

The glass composition of 50Li₂O-20MO-29.7B₂O₃-0.3Sm₂O₃ (M = Mg/Ca/Sr/Ba), has been synthesized by the conventional melt quench technique. Density measurements were studied and shows large for LBaBSm glass sample (2.9049 g/cm³) than any other alkali species (Mg/Ca/Sr). Variation in density is due to the ionic radii of the alkali ion species (M = Mg/Ca/Sr/Ba). Optical absorption spectra of Sm³⁺ doped LMgB, LCaB, LSrB and LBaB glass systems were studied and shows very intense peaks at NIR region. The emission and excitation spectra of these glasses were studied and emission spectra shows green, yellow and reddish - orange emission bands at 563, 600, 646 and 706 nm. Judd–Ofelt (JO) intensity analysis had been performed and JO parameters were estimated for 0.3 mol.% Sm₂O₃ doped 50Li₂O-20MO-29.7B₂O₃ (M = Mg/Ca/Sr/Ba) glasses. Radiative properties such as transition probabilities, stimulated emission cross-sections and branching ratios were estimated by using JO parameters and luminescence spectra. The decay curves of these glasses exhibit single exponential nature. The CCT values obtained from CIE for these glass samples shows 1663 K for indicating orange emission under 403 nm excitation wavelength.

Original language	English
Pages (from-to)	197-204
Number of pages	8
Journal	Journal of Alloys and Compounds
Volume	749
DOIs	https://doi.org/10.1016/j.jallcom.2018.03.266
State	Published - 15 Jun 2018

Keywords

CIE chromaticity
Judd–Ofelt analysis
Lithium borate glass
Radiative lifetime
Sm ions

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10.1016/j.jallcom.2018.03.266

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Kirdsiri, K., Raja Ramakrishna, R., Damdee, B., Kim, H. J., Kaewjaeng, S., Kothan, S., & Kaewkhao, J. (2018). Investigations of optical and luminescence features of Sm³⁺ doped Li₂O-MO-B₂O₃ (M =Mg/Ca/Sr/Ba) glasses mixed with different modifier oxides as an orange light emitting phosphor for WLED's. Journal of Alloys and Compounds, 749, 197-204. https://doi.org/10.1016/j.jallcom.2018.03.266

@article{6020ce933c534bb39cb154beef89feb6,

title = "Investigations of optical and luminescence features of Sm3+ doped Li2O-MO-B2O3 (M =Mg/Ca/Sr/Ba) glasses mixed with different modifier oxides as an orange light emitting phosphor for WLED's",

abstract = "The glass composition of 50Li2O-20MO-29.7B2O3-0.3Sm2O3 (M = Mg/Ca/Sr/Ba), has been synthesized by the conventional melt quench technique. Density measurements were studied and shows large for LBaBSm glass sample (2.9049 g/cm3) than any other alkali species (Mg/Ca/Sr). Variation in density is due to the ionic radii of the alkali ion species (M = Mg/Ca/Sr/Ba). Optical absorption spectra of Sm3+ doped LMgB, LCaB, LSrB and LBaB glass systems were studied and shows very intense peaks at NIR region. The emission and excitation spectra of these glasses were studied and emission spectra shows green, yellow and reddish - orange emission bands at 563, 600, 646 and 706 nm. Judd–Ofelt (JO) intensity analysis had been performed and JO parameters were estimated for 0.3 mol.% Sm2O3 doped 50Li2O-20MO-29.7B2O3 (M = Mg/Ca/Sr/Ba) glasses. Radiative properties such as transition probabilities, stimulated emission cross-sections and branching ratios were estimated by using JO parameters and luminescence spectra. The decay curves of these glasses exhibit single exponential nature. The CCT values obtained from CIE for these glass samples shows 1663 K for indicating orange emission under 403 nm excitation wavelength.",

keywords = "CIE chromaticity, Judd–Ofelt analysis, Lithium borate glass, Radiative lifetime, Sm ions",

author = "K. Kirdsiri and {Raja Ramakrishna}, R. and B. Damdee and Kim, {H. J.} and S. Kaewjaeng and S. Kothan and J. Kaewkhao",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = jun,

day = "15",

doi = "10.1016/j.jallcom.2018.03.266",

language = "English",

volume = "749",

pages = "197--204",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

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}

Kirdsiri, K, Raja Ramakrishna, R, Damdee, B, Kim, HJ, Kaewjaeng, S, Kothan, S & Kaewkhao, J 2018, 'Investigations of optical and luminescence features of Sm³⁺ doped Li₂O-MO-B₂O₃ (M =Mg/Ca/Sr/Ba) glasses mixed with different modifier oxides as an orange light emitting phosphor for WLED's', Journal of Alloys and Compounds, vol. 749, pp. 197-204. https://doi.org/10.1016/j.jallcom.2018.03.266

Investigations of optical and luminescence features of Sm³⁺ doped Li₂O-MO-B₂O₃ (M =Mg/Ca/Sr/Ba) glasses mixed with different modifier oxides as an orange light emitting phosphor for WLED's. / Kirdsiri, K.; Raja Ramakrishna, R.; Damdee, B. et al.
In: Journal of Alloys and Compounds, Vol. 749, 15.06.2018, p. 197-204.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Investigations of optical and luminescence features of Sm3+ doped Li2O-MO-B2O3 (M =Mg/Ca/Sr/Ba) glasses mixed with different modifier oxides as an orange light emitting phosphor for WLED's

AU - Kirdsiri, K.

AU - Raja Ramakrishna, R.

AU - Damdee, B.

AU - Kim, H. J.

AU - Kaewjaeng, S.

AU - Kothan, S.

AU - Kaewkhao, J.

PY - 2018/6/15

Y1 - 2018/6/15

N2 - The glass composition of 50Li2O-20MO-29.7B2O3-0.3Sm2O3 (M = Mg/Ca/Sr/Ba), has been synthesized by the conventional melt quench technique. Density measurements were studied and shows large for LBaBSm glass sample (2.9049 g/cm3) than any other alkali species (Mg/Ca/Sr). Variation in density is due to the ionic radii of the alkali ion species (M = Mg/Ca/Sr/Ba). Optical absorption spectra of Sm3+ doped LMgB, LCaB, LSrB and LBaB glass systems were studied and shows very intense peaks at NIR region. The emission and excitation spectra of these glasses were studied and emission spectra shows green, yellow and reddish - orange emission bands at 563, 600, 646 and 706 nm. Judd–Ofelt (JO) intensity analysis had been performed and JO parameters were estimated for 0.3 mol.% Sm2O3 doped 50Li2O-20MO-29.7B2O3 (M = Mg/Ca/Sr/Ba) glasses. Radiative properties such as transition probabilities, stimulated emission cross-sections and branching ratios were estimated by using JO parameters and luminescence spectra. The decay curves of these glasses exhibit single exponential nature. The CCT values obtained from CIE for these glass samples shows 1663 K for indicating orange emission under 403 nm excitation wavelength.

AB - The glass composition of 50Li2O-20MO-29.7B2O3-0.3Sm2O3 (M = Mg/Ca/Sr/Ba), has been synthesized by the conventional melt quench technique. Density measurements were studied and shows large for LBaBSm glass sample (2.9049 g/cm3) than any other alkali species (Mg/Ca/Sr). Variation in density is due to the ionic radii of the alkali ion species (M = Mg/Ca/Sr/Ba). Optical absorption spectra of Sm3+ doped LMgB, LCaB, LSrB and LBaB glass systems were studied and shows very intense peaks at NIR region. The emission and excitation spectra of these glasses were studied and emission spectra shows green, yellow and reddish - orange emission bands at 563, 600, 646 and 706 nm. Judd–Ofelt (JO) intensity analysis had been performed and JO parameters were estimated for 0.3 mol.% Sm2O3 doped 50Li2O-20MO-29.7B2O3 (M = Mg/Ca/Sr/Ba) glasses. Radiative properties such as transition probabilities, stimulated emission cross-sections and branching ratios were estimated by using JO parameters and luminescence spectra. The decay curves of these glasses exhibit single exponential nature. The CCT values obtained from CIE for these glass samples shows 1663 K for indicating orange emission under 403 nm excitation wavelength.

KW - CIE chromaticity

KW - Judd–Ofelt analysis

KW - Lithium borate glass

KW - Radiative lifetime

KW - Sm ions

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U2 - 10.1016/j.jallcom.2018.03.266

DO - 10.1016/j.jallcom.2018.03.266

M3 - Article

AN - SCOPUS:85044570200

SN - 0925-8388

VL - 749

SP - 197

EP - 204

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Investigations of optical and luminescence features of Sm³⁺ doped Li₂O-MO-B₂O₃ (M =Mg/Ca/Sr/Ba) glasses mixed with different modifier oxides as an orange light emitting phosphor for WLED's

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