Fabrication and Properties of Pr3+-Doped Lithium Gadolinium Borate Glasses

2016 ◽  
Vol 707 ◽  
pp. 131-134
Author(s):  
Kitipun Boonin ◽  
Warawut Sa-Ardsin ◽  
Jakrapong Kaewkhao
Keyword(s):  
Luminescence Intensity ◽  
Atmospheric Pressure ◽  
Emission Spectra ◽  
Xenon Lamp ◽  
Borate Glasses ◽  
Melt Quenching ◽  
Absorption Bands ◽  
Color Coordinates ◽  
Emission Light

Pr3+-doped Li2O – Gd2O3 – B2O3 glasses (LGBO glass) with the formula 60Li2O:10Gd2O3:(30-x)B2O3:xPrO3 were fabricated using melt quenching technique. The five glass samples with different concentrations of Pr2O3 were prepared under atmospheric pressure. The samples were investigated on their properties: absorption and photoluminescence. All absorption bands are increase with increasing of Pr3+ content. The emission spectra were measured with 446 nm light pumped by xenon lamp. The maximum luminescence intensity was observed at x = 0.50 mol% andthe CIE color coordinates showed the bluish purple emission light for this concentration.

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.

White Light Emission from Dy3+ Doped Zinc Bismuth Borate and Bismuth Borate Glasses: A Comparative Study

2016 ◽  
Vol 675-676 ◽  
pp. 409-413 ◽  
Author(s):  
Patarawagee Yasaka ◽  
Kitipun Boonin ◽  
Jakrapong Kaewkhao
Keyword(s):  
Chemical Composition ◽  
Borate Glass ◽  
Light Emission ◽  
Emission Spectra ◽  
Borate Glasses ◽  
Melt Quenching ◽  
Absorption Bands ◽  
Bismuth Borate ◽  
Chromaticity Coordinates ◽  
Bismuth Borate Glass

In this study, the effect of zinc bismuth borate (ZBB) glass and bismuth borate glass (BB) doped with trivalent dysprosium ion were investigated. Glass were prepared by the conventional melt quenching technique, with the chemical composition of (60-x) B2O3: 30Bi2O3: 10ZnO: xDy2O3 and (70-x) B2O3: 30Bi2O3: xDy2O3 where x = 1.0 mol %. The results show the densities of glasses are 3.91 g/cm3(ZBB) and 4.24 g/cm3 (BB), respectively. The absorption spectra consists of six absorption bands that are located at 752, 796, 902, 1096, 1276 and 1681 nm, and are assigned to 6H15/2 to 6F3/2,6F5/2, 6F7/2, 6H7/2+6F9/2, 6F11/2+6H9/2 and 6H11/2 transitions. The emission spectra exhibited three emission bands corresponding to the 4F9/2 → 6H15/2 (483 nm; blue), 4F9/2 → 6H13/2 (575 nm; yellow) and 4F9/2 → 6H11/2 (664 nm; red) transitions. The lifetime for 4F9/2 → 6H13/2 transition are 0.178 ms (ZBB) and 0.420 ms (BB). Both of Dy3+ in ZBB and BB glasses have been show white emission and illustrated by CIE 1931 chromaticity coordinates.

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.

Upconversion Luminescence and Optical Studies of Nd3+ in Bismuth Borate Glasses

2013 ◽  
Vol 770 ◽  
pp. 153-156
Author(s):  
Onanong Chamlek ◽  
Pruittipol Limkitjaroenporn ◽  
Hong Joo Kim ◽  
Jakrapong Kaewkhao
Keyword(s):  
Energy Level ◽  
Band Gap ◽  
Glass Matrix ◽  
Optical Band Gap ◽  
Upconversion Luminescence ◽  
Emission Spectra ◽  
Borate Glasses ◽  
Optical Studies ◽  
Melt Quenching ◽  
Bismuth Borate

Neonymium doped bismuth borate glasses with composition 50Bi2O3 : (50-x)B2O3: xNd2O3 (where x = 0.5, 1.0, 1.5, 2.0 and 2.5 mol%) have been prepared by melt quenching technique. The optical and upconversion luminescence properties of glasses were investigated. The nine absorption peaks were observed, correspond with Nd3+ energy level in glass. The optical band gap decreased with increasing Nd2O3 concentration due to the increase of non-bridging oxygen (NBOs) in glass matrix. The upconversion luminescence emission spectra shows peak at 393 nm, assign to 4D3/24I11/2 transition.

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.

Properties and Investigation on Effect of Eu3+ Ions in Lithium Barium Borate Glasses

2016 ◽  
Vol 675-676 ◽  
pp. 380-383
Author(s):  
Benchaphorn Damdee ◽  
Keerati Kirdsiri ◽  
Jakrapong Kaewkhao
Keyword(s):  
Wavelength Range ◽  
Emission Spectra ◽  
Borate Glasses ◽  
Barium Borate ◽  
Melt Quenching ◽  
Doped Glasses

Eu3+-doped lithium barium borate glasses of the composition 50Li2O : 20BaO : (30-x)B2O3 : xEu2O3, where x = 0.00, 0.10, 0.30, 0.50, and 1.00 mol%. The glasses were fabricated by normal melt quenching technique at 1,000°C and their properties were investigated. The emission spectra of Eu3+-doped glasses were recorded in wavelength range of 550-770 nm with 394 nm excitation. All the spectra exhibited 5 emission bands corresponding to the 5D0→7F0, 5D0→7F1, 5D0→7F2, 5D0→7F3 and 5D0→7F4 transition, respectively. The peak intensities increase with the increase of concentration from 0.10 to 1.0 mol%

Luminescence Properties of Magnesium Sodium Borate Glasses Doped Sm3+, Dy3+ and Eu3+

2020 ◽  
Vol 307 ◽  
pp. 314-320
Author(s):  
Abd Rahman Tamuri ◽  
Aryna Abdul Majid ◽  
Rosli Husin
Keyword(s):  
Light Emitting Diode ◽  
Energy Levels ◽  
Red Light ◽  
Emission Spectra ◽  
Luminescence Properties ◽  
Sodium Borate ◽  
Borate Glasses ◽  
Absorption Bands ◽  
Light Emitting ◽  
Color Displays

The luminescence properties Dy3+, Eu3+ and Sm3+ doped magnesium sodium borate glasses were investigated. The glasses samples containing the composition 30MgO-70Na2B4O7.10H2O-xRE2O3 (where RE = Dy3+, Eu3+, and Sm3+, x = 0.1, 0.5, and 1.0 mol %) are prepared by the conventional melt quenching technique. The optical properties have been evaluated using Ultraviolet-Visible Spectroscopy and Photoluminescence Spectroscopy. The X-ray Diffraction pattern was studied to confirm the amorphous nature of the prepared glass. The absorption spectra yield the most intense absorption bands and transition energy levels for Dy3+, Eu3+, and Sm3+ located at 347 nm (6H15/2 → 6P7/2), 393 nm (7F0 → 5L6), and 403 nm (6H5/2 →6P5/2) respectively. The emission spectra demonstrate the highest emission intensity centered at 463 nm (4F9/2 → 6F11/2 + 6H9/2), 612 nm (5D0 → 7FJ), and 599 nm (4G5/2 → 6H7/2) for Dy3+, Eu3+, and Sm3+ respectively. Dy3+ emits combination of blue, yellow, and red light, Eu3+ emits red light and Sm3+ emits orange to red light. The higher the content of Dy3+, Eu3+, and Sm3+, the higher the spectral or peak intensity for both absorption and emission. The findings could be useful for development of laser, light emitting diode (LED), and color displays applications. KEY WORDS: Luminescence, Borax glass, Magnesium, Dysprosium, Europium, Samarium.

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.

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.

Photo and X-Rays Induced Optical Luminescence of Sm3+-Doped Bismuth Borate Glasses

2014 ◽  
Vol 979 ◽  
pp. 413-416
Author(s):  
Pruittipol Limkitjaroenporn ◽  
Kitipun Boonin ◽  
Patarawagee Yasaka ◽  
Hong Joo Kim ◽  
Jakrapong Kaewkhao
Keyword(s):  
Emission Spectra ◽  
Borate Glasses ◽  
X Rays ◽  
Melt Quenching ◽  
Exponential Behavior ◽  
Bismuth Borate ◽  
Broad Emission ◽  
Optical Luminescence ◽  
The Relationship ◽  
Single Exponential

Samarium doped bismuth borate glasses with composition 66.7Bi2O3: (33.3-x)B2O3: x Sm2O3(where x = 0.5, 1.0, 1.5, 2.0 and 2.5 mol%) have been prepared by melt quenching technique. The physical, optical, photoluminescence and X-rays luminescence properties were investigated. The densities and molar volumes were not found the relationship with the increasing samarium concentration. The photoluminescence emission spectra shows broad emission bands due to4G5/2→6HJ(J=5/2, 7/2, 9/2, 11/2) transitions when excited with 473 nm. The decay curves of4G5/2level exhibited single exponential behavior for all the concentrations and the measured lifetimes are found to depend strongly on samarium concentrations. The X-rays emission spectra were measured at the X-rays of intensity 100kV and current 1.5mA. The emission peaks observed at 569, 598, 641 and 705 nm. And the intensity of luminescence increase as samarium concentration increase.

Sign in / Sign up

Export Citation Format

Share Document