Photoluminescence Properties of CaO-BaO-P2O5 Glass Systems Doped with Sm3+

2016 ◽  
Vol 675-676 ◽  
pp. 368-371 ◽  
Author(s):  
Yaowaluk Tariwong ◽  
Natthakridta Chanthima ◽  
Jakrapong Kaewkhao ◽  
Narong Sangwaranatee ◽  
Hong Joo Kim
Keyword(s):  
Molar Volume ◽  
Absorption Spectra ◽  
Near Infrared ◽  
Energy Levels ◽  
Emission Spectra ◽  
Excitation Wavelength ◽  
Photoluminescence Properties ◽  
Melt Quenching ◽  
Absorption Bands

This paper reports on physical, optical and photoluminescence properties of Sm3+doped calcium barium phosphate (CaO: BaO: P2O5: Sm2O3) glass systems. The glass samples have been prepared by the melt-quenching technique at 1200°C. It was found that the density of glasses tended to increase with increasing of Sm2O3 concentration. While, the molar volume of glasses tended to decrease with increasing of Sm2O3 concentration higher than 0.1 mol%. The absorption spectra of glasses were recorded in the ultraviolet visible near infrared (UV-Vis-NIR) region. The absorption bands centered at 374, 402, 416, 438, 473, 527, 946, 1083, 1236, 1382, 1483, 1531 and 1977 nm, respectively have been observed. The emission spectra of glass samples centered at 561, 597, 643 and 704 nm corresponding to the energy levels from 4G5/2 to 6H5/2, 6H7/2, 6H9/2 and 6H11/2, respectively have been observed with 402 nm excitation wavelength.

Preparation and Properties of La2O3-CaO-P2O5 Glasses Doped with Eu3+ Ions

2016 ◽  
Vol 675-676 ◽  
pp. 376-379 ◽  
Author(s):  
Narun Luewarasirikul ◽  
Piyachat Meejitpaisan ◽  
Jakrapong Kaewkhao
Keyword(s):  
Calcium Phosphate ◽  
Molar Volume ◽  
Absorption Spectra ◽  
Room Temperature ◽  
Emission Spectra ◽  
Phosphate Glasses ◽  
Excitation Wavelength ◽  
Melt Quenching ◽  
Volume Measurements ◽  
Doped Glasses

Lanthanum calcium phosphate glasses doped with Eu3+ ions in compositions 20La2O3:10CaO:(70-x)P2O5:xEu2O3 (where x = 0.05, 0.10, 0.50 and 1.50 mol%) were prepared by melt-quenching technique. The density and molar volume measurements were carried out at room temperature. The absorption spectra were investigated in the UV-Vis-NIR region from 200 to 2500 nm. The emission spectra of Eu3+-doped glasses centered at 590 nm (5D0→7F1), 612 nm (5D0→7F2), 652 nm (5D0→7F3) and 699 nm (5D0→7F4) have been observed with 393 nm excitation wavelength.

Optical Absorption and Photoluminescence Properties of Dy3+ Ions in Bi2O3-SiO2-B2O3 Glass System

2014 ◽  
Vol 979 ◽  
pp. 280-284
Author(s):  
Narong Sangwaranatee ◽  
Yaowaluk Tariwong ◽  
Sunisa Sarachai ◽  
Jakrapong Kaewkhao ◽  
Natthakridta Chanthima
Keyword(s):  
Optical Absorption ◽  
Emission Spectrum ◽  
Molar Volume ◽  
Borosilicate Glass ◽  
Excitation Wavelength ◽  
Optical Absorption Spectra ◽  
Photoluminescence Spectra ◽  
Photoluminescence Properties ◽  
Melt Quenching ◽  
Absorption Bands

This research studied the effect of dysprosium on the physical, optical and luminescence properties of the bismuth borosilicate glass in compositions 40Bi2O3 : 20SiO2 : (40-x)B2O3 : xDy2O3 (where x = 0.0, 0.5, 1.0, 1.5, 2.0 and 2.5 mol%). The glass systems have been prepared at 1100 °C by melt quenching technique. The results showed that the density and molar volume of glass samples are between 4.6477 ± 0.0020 to 5.0047 ± 0.0041 g/cm3 and 45.6608 to 48.6797 cm3/mol, respectively. The values of density and molar volume of these glasses were not depend on the Dy2O3 concentration. The optical absorption spectra of glass samples in the UV-Vis-NIR region shows absorption bands at 794, 906, 1094, 1276 and 1690 nm, respectively. The photoluminescence spectra show emission bands at 482 (blue), 576 (green), 663 (yellow) and 756 (red) nm under 453 nm excitation wavelength. The emission spectrum at 576 nm has shown a strongest intensity.

The Photoluminescence, Optical Absorption and Physical Properties of Dy3+ Ions in Li2O-La2O3-B2O3 Glass System

2014 ◽  
Vol 979 ◽  
pp. 171-174
Author(s):  
Nuanthip Wantana ◽  
Hong Joo Kim ◽  
Onanong Chamlek ◽  
Jakrapong Kaewkhao ◽  
Natthakridta Chanthima
Keyword(s):  
Optical Absorption ◽  
Physical Properties ◽  
Molar Volume ◽  
Emission Spectra ◽  
Experimental Results ◽  
Excitation Wavelength ◽  
Borate Glasses ◽  
Melt Quenching ◽  
Absorption Bands ◽  
Doped Glasses

The lithium lanthanum borate glasses doped with Dy2O3 were prepared by the melt quenching technique. The Dy2O3 doped concentration has been increased and substituted B2O3 from 0.00 to 1.50 mol% in the glasses. The photoluminescence, optical absorption and physical properties of these glasses have been investigated in this work. The experimental results show that, the molar volume of glasses tended to increase with increasing of Dy2O3 concentration, but the density were not depending on the concentration of Dy2O3. The UV-Vis-NIR spectra, absorption bands at 451, 798, 894, 1085 1264 and 1676 nm have been observed. For Dy3+ doped glasses, emission bands centered at 483, 575 and 664 nm have been observed with 388 nm excitation wavelength. The emission spectra have shown the strongest band in the glasses with 0.50 mol% Dy2O3 concentration.

Investigation of Luminescence Properties of Dy3+ Doped Alkaline Earth Oxides Barium Phosphate Glasses

2018 ◽  
Vol 879 ◽  
pp. 27-31 ◽  
Author(s):  
Natthakridta Chanthima ◽  
Yaowaluk Tariwong ◽  
Thanapong Sareein ◽  
Jakrapong Kaewkhao ◽  
Nisakorn W. Sangwaranatee
Keyword(s):  
Alkaline Earth ◽  
Near Infrared ◽  
Emission Spectra ◽  
Phosphate Glasses ◽  
Luminescence Properties ◽  
Excitation Wavelength ◽  
Photoluminescence Spectra ◽  
Melt Quenching ◽  
Absorption Bands ◽  
Light Region

In this work, the optical and luminescence properties of Dy2O3 doped barium phosphate glass with different alkaline earth oxides (MgO, CaO and SrO) have been investigated. The glass samples were prepared by the melt-quenching technique at the melting temperature of 1200 °C. The absorption spectra of glasses were recorded in the ultraviolet, visible and near infrared (UV-Vis-NIR) region. The absorption bands centered at 385, 424, 452, 472, 754, 803, 901, 1093, 1273 and 1683 nm, respectively have been observed. The emission spectra of glass samples centered at 482, 574, 662 and 751 nm, respectively have been observed with 350 nm excitation wavelength. The result of radioluminescence spectra were slightly different with photoluminescence spectra. The coordinate of emitting color (x, y) for 350 excitation wavelength is 0.3781 and 0.4252, respectively which is located in white light region of CIE diagram.

Study on Physical and Photoluminescence Properties of Er3+Doped Zinc Barium Tellurite Glasses

2017 ◽  
Vol 728 ◽  
pp. 155-159 ◽  
Author(s):  
Patarawagee Yasaka ◽  
Yotsakit Ruangtaweep ◽  
Jakrapong Kaewkhao
Keyword(s):  
Molar Volume ◽  
Ground State ◽  
Atmospheric Pressure ◽  
Tellurite Glasses ◽  
Photoluminescence Spectra ◽  
Photoluminescence Properties ◽  
Melt Quenching ◽  
Absorption Bands ◽  
Volume Absorption ◽  
Doped Zno

Er3+-doped ZnO – BaO – TeO2 glasses with the formula (80-x)TeO2–15ZnO–5BaO–xEr2O3 were fabricated using melt quenching technique. The 5 glass samples with different concentrations of Er2O3 were prepared under atmospheric pressure. The samples were investigated on their properties: density, molar volume, absorption spectra and photoluminescence. Density was increased with an increase in Er3+ content. The molar volume trend is in the opposite way to that of the density. The absorption bands are assigned as absorptions from the 4I15/2 ground state to the 4F7/2, 2H11/2, 4S3/2, 4F9/2, 4I9/2, 4I11/2 and 4I13/2 levels. All absorption bands are increase with increasing content of Er3+. The photoluminescence spectra were measured with 980 nm light pumped by flash lamp. The spectra trends to increase with increasing concentration of the dopant.

Luminescence Characteristics of Li2O3:Gd2O3:B2O3:Dy2O3 Glasses System

2016 ◽  
Vol 675-676 ◽  
pp. 414-417
Author(s):  
Kitipun Boonin ◽  
Warawut Sa-Ardsin ◽  
Jakrapong Kaewkhao
Keyword(s):  
Molar Volume ◽  
Absorption Spectra ◽  
Excited States ◽  
Near Infrared ◽  
Glass Network ◽  
Emission Spectra ◽  
Excitation Spectra ◽  
Volume Absorption ◽  
Infrared Wavelengths ◽  
Luminescence Characteristics

Melt quenching technique have been used to prepare the dysprosium-doped lithium-gadolinium borate glasses, which have the composition [60Li2O:10Gd2O3:(30-x) B2O3:xDy2O3] (LGBO:Dy3+), under atmospheric pressure. Some properties: density, molar volume, absorption spectra and photoluminescence of the LGBO:Dy3+ glasses were investigated and discussed. The density of glasses drops to the minimum point at 0.05 mol% and swings after that point. The molar volume of the glasses does not depend on Dy2O3concentration. In absorption spectra for the range of visible to near infrared wavelengths, there are 5 obvious peaks indicating the Dy3+ in glass network. The intensity of each peak at certain wavelength increases with concentration of the Dy2O3. Whereas the excitation spectra show 7 obvious peaks representing the transitions from the ground state 6H15/2to various excited states. The Xenon compact arc lamps were used to measure the emission spectra with 388 nm light. As the result, the LGBO:Dy3+ glass sample with 0.50 mol% of Dy3+ shows the highest intensity in the emission spectra.

Visible Luminescence Properties of Sm3+ Doped Magnesium Bismuth Phosphate Glasses

2016 ◽  
Vol 675-676 ◽  
pp. 405-408 ◽  
Author(s):  
Narong Sangwaranatee ◽  
Jakrapong Kaewkhao ◽  
Natthakridta Chanthima
Keyword(s):  
Absorption Spectra ◽  
Near Infrared ◽  
Infrared Region ◽  
Phosphate Glasses ◽  
Excitation Wavelength ◽  
Absorption Bands ◽  
Visible Luminescence ◽  
Yellow Color ◽  
Bismuth Phosphate ◽  
Quenching Method

In this research, the magnesium bismuth phosphate glasses doped with different concentration of Sm2O3 have been prepared using the melt quenching method at 1200 °C. Magnesium bismuth phosphate glasses are clear, homogenous and increased yellow color with increasing the concentration of Sm2O3. Physical and optical properties of glass samples were investigated. The results show that, the density and molar volumes were increased with increasing the concentration of Sm2O3. The absorption spectra in the wavelength range at 200 - 2500 nm was observed. It was found that the absorption bands have nine peaks with corresponding to 401, 439, 472, 945, 1081, 1231, 1378, 1480 and 1533 nm. Absorption bands at 401 and 1231 nm are highest absorption spectra in visible and near infrared region, respectively. For the luminescence spectrum of glass samples has shown four emission transitions at 562 (green), 598 (orange), 664 (red) and 705 nm with excitation wavelength at 401 nm. The wavelength at 401 and 598 nm has shown highest intensity of excitation and emission wavelength, respectively.

Optical and Luminescence Properties of Pr3+ in Gd2O3-CaO-SiO2-B2O3 Glasses

2016 ◽  
Vol 675-676 ◽  
pp. 359-363
Author(s):  
Siriprapa Kaewjaeng ◽  
Smit Insiripong ◽  
Hong Joo Kim ◽  
Utumma Maghanemi ◽  
Suchart Kothan ◽  
...  
Keyword(s):  
Optical Absorption ◽  
Emission Band ◽  
Energy Levels ◽  
Emission Spectra ◽  
Luminescence Properties ◽  
Excitation Wavelength ◽  
Absorption Bands ◽  
Doped Glass ◽  
First Time ◽  
532 Nm

This paper reports on the results concerning optical absorption and luminescence properties of 25Gd2O3-10CaO-10SiO2-(55-x) B2O3-xPr2O3 (where x is 0.0, 0.5, 1.0, 1.5, 2.0 and 2.5 mol %) have been synthesized by melting and quenching process. The locations of the absorption peak observed are investigated for the first time. It is shown that the f-f transitions in the studied glasses are allowed by distortions of Pr3+ ions. Seven absorption bands corresponding to the 3H4 → 3P2, 1I6+3P1, 1D2, 1G4, 3F4, 3F3 and 3F2, respectively absorption bands peaked at 459,483,575,1011,1418,1513 and 1931 nm. The luminescence intensity of Pr3+ doped glass under excited at 459 and 483 nm, the emission band under excited at 459 nm wavelengths emission centered at 542 nm (3P0→3H5), 602 nm (1D2→3H4), 646 nm (3P0→3F2) and 689 nm (1D2→3H5) .The emission bands with 483 nm excitation wavelength, the emission band centered at 532 nm (3P1→3H5), 602 nm (1D2→3H4), 646 nm (3P0→3F2) and 725 nm (3P0→3F4), respectively. The present paper brings out the results pertaining to the studies carried out on different structural and optical absorption in UV-VIS-NIR region are also measured and discussed in term of energy levels, energy band gap and emission spectra of Pr3+ ions doped in Gd2O3-CaO-SiO2-B2O3 glasses.

The Photoluminescence and Physical Properties of Eu3+ Ions in Li2O-Y2O3-B2O3 Glass System

2014 ◽  
Vol 979 ◽  
pp. 147-150 ◽  
Author(s):  
Eakgapon Kaewnuam ◽  
Pruek Prongsamrong ◽  
Hong Joo Kim ◽  
Jakrapong Kaewkhao ◽  
Natthakridta Chanthima
Keyword(s):  
Physical Properties ◽  
Molar Volume ◽  
Emission Spectra ◽  
Glass System ◽  
Emission Wavelength ◽  
Borate Glasses ◽  
Melt Quenching ◽  
Absorption Bands ◽  
Doped Glasses ◽  
The Eu

The photoluminescence and physical properties of lithium yttrium borate glasses doped with Eu2O3were studied in this work. The glasses were prepared by the melt-quenching technique and varied the Eu2O3doped concentration between 0.00-1.50 mol%. We found that, the molar volume and density of these glasses showed linear increasing tendency with Eu2O3concentration. The absorption bands were observed in UV and NIR region. For the Eu3+doped glasses, the excitation bands centered at 363, 383, 394, 414, 465, 526 and 533 nm were observed with 613 nm emission wavelength. While in the emission spectra, the bands centered at 590, 613, 652 and 701 nm were observed with excitation of 394 nm. The intensity of excitation and emission bands increased with increasing of Eu2O3concentration.

Luminescence Properties of Nd3+ Ions Doped in CaO-Y2O3-SiO2-B2O3 Glasses

2016 ◽  
Vol 675-676 ◽  
pp. 355-358
Author(s):  
Natthakridta Chanthima ◽  
Jakrapong Kaewkhao
Keyword(s):  
Molar Volume ◽  
Absorption Spectra ◽  
Luminescence Intensity ◽  
Room Temperature ◽  
Luminescence Properties ◽  
Melt Quenching ◽  
Absorption Bands ◽  
Ion Concentrations ◽  
Volume Measurements ◽  
Nir Luminescence

Calcium yttrium silicoborate glasses doped with different Nd3+ ion concentrations have been prepared using the melt quenching technique at 1400 °C. Physical, optical and luminescence properties of glass samples were investigated. The density and molar volume measurements were carried out at room temperature. The results show that, the density and molar volume of glass samples not deepened on the concentration of Nd2O3. Absorption spectra were investigated in the UV–VIS–NIR region from 200 to 2500 nm. It was observed that the absorption bands have 8 peaks with corresponding to 467, 521, 584, 638, 682, 747, 805 and 877 nm. The luminescence properties were investigated in the NIR region. On excitation, with 584 and 805 nm, it is found that the emission peaks are located at 896 (904), 1060 and 1332 nm that correspond to the emission transitions from 4F3/2 to 4I9/2, 4I11/2 and 4I13/2, respectively. The NIR luminescence intensity obtained with 584 nm excitation was stronger than 805 nm.

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