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.

Structural and Optical Properties of Ho3+ Doped ZnO-Bi2O3-B2O3 Glasses

2014 ◽  
Vol 979 ◽  
pp. 98-101 ◽  
Author(s):  
Parnuwat Chimalawong ◽  
Keerati Kirdsiri ◽  
Jakrapong Kaewkhao ◽  
Pichet Limsuwan
Keyword(s):  
Molar Volume ◽  
Ground State ◽  
Borate Glass ◽  
Borate Glasses ◽  
Structural And Optical Properties ◽  
Melt Quenching ◽  
Bismuth Borate ◽  
Doped Zno ◽  
Bismuth Borate Glass

Ho3+ doped zinc bismuth borate glasses of the composition 10ZnO : 30Bi2O3 : (60-x)B2O3 : xHo2O3 (where x = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0 mol%) were fabricated by conventional melt quenching technique. In order to understand the role of Ho2O3 in these glasses, the density, molar volume and optical spectra were investigated. The molar volume decreases with an increase in Ho2O3 content, which is attributed to the structure becomes more compacted. The absorption spectra of Ho3+ doped in zinc bismuth borate glass correspond to several bands, which are assigned from the ground state, 5I8 to 5G5 (420 nm), 5G6 + 5F1 (451 nm), 5F2 + 5F4 (538 nm), 5F5 (643 nm) and 5I5 (1152 nm). Moreover, the optical basicities were also theoretically determined.

Physical and Optical Properties of Ce3+ Doped in Bismuth Borate Glass

2013 ◽  
Vol 770 ◽  
pp. 254-257 ◽  
Author(s):  
Kitipun Boonin ◽  
Onanong Chamlek ◽  
Pruittipol Limkitjaroenporn ◽  
Hong Joo Kim ◽  
Jakrapong Kaewkhao
Keyword(s):  
Optical Properties ◽  
Absorption Spectra ◽  
Borate Glass ◽  
Optical Band Gap ◽  
Composition Range ◽  
Borate Glasses ◽  
Melt Quenching ◽  
Bismuth Borate ◽  
Bismuth Borate Glass ◽  
No Absorption

Bismuth borate glasses doped with cerium in the composition 50Bi2O3:(50-x)B2O3:xCeF3 were prepared for the composition range 0x2.5 (in mol%). The glass samples have been fabricated by the conventional melt quenching technique. The physical and optical properties of glass samples were investigated. The optical absorption spectra of the glasses have been measured in the wavelength range 190-1100 nm and no absorption peak was obtained in this region. The absorption spectra of all samples were shifted to longer wavelength with increasing of CeF3 concentrations. Optical band gap decreased and refractive index increased with increasing of CeF3 concentrations.

Synthesis and Luminescence Properties of Sm3+ in Bismuth Borate Glass

2013 ◽  
Vol 770 ◽  
pp. 42-45
Author(s):  
Suwat Rakpanich ◽  
Natthakridta Chanthima ◽  
Hong Joo Kim ◽  
Mitra Djamal ◽  
Pichet Limsuwan ◽  
...  
Keyword(s):  
Energy Level ◽  
Emission Spectrum ◽  
Borate Glass ◽  
Optical Measurements ◽  
Chemical Compositions ◽  
Borate Glasses ◽  
Melt Quenching ◽  
Bismuth Borate ◽  
Quenching Method ◽  
Bismuth Borate Glass

In this research present the results of the analysis of Sm3+ ions doped bismuth borate glasses. Optical measurements such as absorption, excitation and emission profiles have been carried out. Glasses with the chemical compositions (50-x)B2O350Bi2O3xSm2O3 (x = 0.0, 0.5, 1.0, 1.5, 2.50 and 2.5 mol%) were prepared using a conventional melt-quenching method. The emission spectrum of Sm3+ doped bismuth borate glasses has shown the emission transitions of to 4G5/26H 5/2 (563 nm), 4G5/26H 7/2 (598 nm), 4G5/26H9/2 (644 nm). Energy level schemes relating to the emission mechanisms involved in Sm3+ glasses have been given.

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.

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.

Photoluminescence Investigation of Dy3+ Ions in Bi2O3-B2O3 Glasses

2013 ◽  
Vol 748 ◽  
pp. 70-73
Author(s):  
Smit Insiripong ◽  
Kitipun Boonin ◽  
Natthakridta Chanthima ◽  
Jakrapong Kaewkhao
Keyword(s):  
Borate Glass ◽  
Glass Composition ◽  
Thermal Strain ◽  
Emission Spectra ◽  
Photoluminescence Properties ◽  
Melt Quenching ◽  
Time Intervals ◽  
Photoluminescence Study ◽  
Composition Formula ◽  
Bismuth Borate Glass

In this work, the photoluminescence properties of bismuth borate glass doped with Dy3+ have been studied. Glasses were prepared using the glass composition formula 30Bi2O3 : (70-x)B2O3 : xDy2O3, where x is 0.0, 0.5, 1.0, 1.5, 2.0 and 2.5 mol%. Glass samples were fabricated by the use of the normal melt-quenching technique at the melting temperature of 1,100 °C at 3 hour time intervals. Glass samples were annealed at the temperature of 500 °C at 3 hour time intervals to remove thermal strain. From photoluminescence study, the emission spectra (excited at 451 nm) were observed three emission peaks, which are assigned to 4F9/26H15/2 (484 nm), 4F9/26H13/2 (574 nm), and 4F9/26H11/2 (661 nm) transitions, respectively. The luminescence intensities of all glasses are comparable and the strongest intensity peak at 574 nm was obtained.

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 some Properties of Bismuth Borate Glasses Containing Al2O3

2016 ◽  
Vol 675-676 ◽  
pp. 347-350
Author(s):  
Sopanat Kongsriprapan ◽  
Kanyakorn Teanchai ◽  
Keerati Kirdsiri ◽  
Jakrapong Kaewkhao ◽  
Wichian Siriprom
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Band Gap ◽  
Energy Band ◽  
Glass Matrix ◽  
Borate Glass ◽  
Borate Glasses ◽  
Energy Band Gap ◽  
Bismuth Borate ◽  
Bismuth Borate Glass

The glass samples in bismuth borate glass matrix containing Al2O3, with the composition of xAl2O3 : 30Bi2O3 : (70-x)B2O3 where x are Al2O3 concentration varying from 0.0, 2.0, 4.0, 6.0, 8.0 and 10.0 mol%, have been prepared. The obtained glasses were investigated some physical and optical properties. The results showed that the densities increased with increasing of Al2O3 concentration, whereas the molar volumes decreased. For the absorption spectra, no peak in the UV to NIR regions has been observed. Moreover the energy band gap and the refractive index for all samples have been calculated.

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.

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.

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