Optical and Luminescence Properties of Dy3+ Doped in Soda Lime Borate Glasses

2016 ◽  
Vol 702 ◽  
pp. 51-56 ◽  
Author(s):  
Suwimon Ruengsri ◽  
Nattapon Srisittipokakun ◽  
Falak Zaman ◽  
Gul Rooh ◽  
Jakrapong Kaewkhao
Keyword(s):  
Photo Luminescence ◽  
Soda Lime ◽  
Luminescence Properties ◽  
Luminescence Spectra ◽  
Excitation Wavelength ◽  
White Led ◽  
Photoluminescence Spectra ◽  
Melt Quenching ◽  
Hypersensitive Transition ◽  
Absorption Measurements

The aim of this study is to develop soda lime borate (SLB) doped with Dy3+ glass and investigate their optical and luminescence properties, for different applications in photonics and optoelectronics. The glass were melt by conventional melt quenching technique. Optical properties have been determined by measuring their absorption spectra and luminescence properties were studied by photo luminescence spectra. From optical absorption measurements, there are ten peaks with transition 6H15/2 to 6F11/2 + 6H9/2 at 1262 nm has higher spectral intensity and is a hypersensitive transition. As a result of 350 nm excitation the photoluminescence spectra have four peaks. Higher luminescence intensity peak was observed for 0.5 mol% Dy3+ doped SLB glass at 4F9/2 to 6H13/2 (575 nm). Hence it is suggest from the chromaticity results that SLB glasses with different Dy2O3 concentration may be a promising glass for white LED under 350 nm excitation wavelength. Further investigation is under way for the optimization of different dopend concentration in the SLB glass.

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.

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.

Crystal Structure and Luminescence of Layered Perovskites Sr3LnInSnO8

2015 ◽  
Vol 230 ◽  
pp. 67-72 ◽  
Author(s):  
Yuriy Titov ◽  
Sergiy G. Nedilko ◽  
Vitalii Chornii ◽  
V. Scherbatskii ◽  
Nadiya Belyavina ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Crystal Structures ◽  
Powder Diffraction ◽  
Luminescence Properties ◽  
Excitation Wavelength ◽  
Photoluminescence Spectra ◽  
Photoluminescence Properties ◽  
X Ray ◽  
Layered Perovskites

The Sr3LnInSnO8(Ln = La, Pr, Nd) layered perovskites were synthesized and their structures have been determined by X-ray powder diffraction. Luminescence properties of the synthesized polycrystalline compounds Sr3PrInSnO8and Sr3NdInSnO8were investigated. Photoluminescence spectra of Sr3PrInSnO8substantially depend on excitation wavelength unlike Sr3NdInSnO8compound. The correlations between peculiarities of the crystal structures and photoluminescence properties have been discussed.

Physical, Structural and Luminescence Properties of ZnO-Bi2O3-B2O3 Glass System

2013 ◽  
Vol 431 ◽  
pp. 8-13 ◽  
Author(s):  
Patarawagee Yasaka ◽  
K. Boonin ◽  
P. Limsuwan ◽  
W. Chewpraditkul ◽  
N. Pattanaboonmee ◽  
...  
Keyword(s):  
Decay Time ◽  
Optical Spectra ◽  
Glass System ◽  
Luminescence Properties ◽  
Photoluminescence Spectra ◽  
Melt Quenching ◽  
Structural Units ◽  
Ir Studies ◽  
Increase With Increase

The ZnO-Bi2O3-B2O3(ZBB) glasses with different concentrations of Bi2O3have been prepared by a conventional melt quenching technique and investigated the effect of Bi2O3on the physical, structural and luminescence properties. The density and hardness of glasses are also measured and found to increase with increase of Bi2O3concentration. The IR studies indicate that these glasses are made up of [BiO3], [BO3], [BO4] and [B basic structural units. From optical spectra, the cut-off wavelengths were shifted from 423 nm to 447 nm as the content of Bi2O3increases from 15 to 30 mol%. The photoluminescence spectra exhibit characteristic peaks at 602 nm corresponding to3P11S0transitions of Bi3+. The decay time for3P1level of Bi3+increases with increase of Bi2O3concentration.

A new red phosphor BaGeF6:Mn4+: hydrothermal synthesis, photo-luminescence properties, and its application in warm white LED devices

2015 ◽  
Vol 3 (13) ◽  
pp. 3055-3059 ◽  
Author(s):  
Qiang Zhou ◽  
Yayun Zhou ◽  
Yong Liu ◽  
Lijun Luo ◽  
Zhengliang Wang ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Blue Light ◽  
Photo Luminescence ◽  
Luminescence Properties ◽  
White Led ◽  
Hydrothermal Route ◽  
Red Phosphor ◽  
Red Emission ◽  
Light Excitation

A new red phosphor BaGeF6:Mn4+prepared by a hydrothermal route shows intense red emission under blue light excitation, which may find application in warm white LED devices.

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.

Electro- and photo-luminescence spectra from a-Si:H and a-SiGe p–i–n solar cells

2000 ◽  
Vol 266-269 ◽  
pp. 1119-1123 ◽  
Author(s):  
Guozhen Yue ◽  
Xunming Deng ◽  
G. Ganguly ◽  
Daxing Han
Keyword(s):  
Solar Cells ◽  
Photo Luminescence ◽  
Luminescence Spectra

Synthesis and luminescence properties of LiGd3(MoO4)5:Eu3+ phosphors for white LED applications

2018 ◽  
Vol 30 (3) ◽  
pp. 2037-2044 ◽  
Author(s):  
Saravana Kumar Jaganathan ◽  
Anthuvan John Peter ◽  
Venkatakrishnan Mahalingam ◽  
Rajagopalan Krishnan
Keyword(s):  
Luminescence Properties ◽  
White Led

scholarly journals Up- and Downconversion Luminescence Properties of Nd3+Ions Doped in Bi2O3–BaO–B2O3Glass System

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
R. Ruamnikhom ◽  
P. Limsuwan ◽  
M. Horprathum ◽  
N. Chanthima ◽  
H. J. Kim ◽  
...  
Keyword(s):  
Radiative Decay ◽  
Excited State Absorption ◽  
Upconversion Emission ◽  
Luminescence Properties ◽  
Barium Borate ◽  
Melt Quenching ◽  
Strong Fluorescence ◽  
Nir Emission ◽  
Quenching Method ◽  
Barium Borate Glass

Physical, optical, and luminescence properties of Nd3+ions in bismuth barium borate glass system were studied. The glasses prepared by a melt quenching method were doped at various Nd2O3concentrations in compositions (40-x)B2O3 : 40Bi2O3 : 20BaO : xNd2O3(wherex= 0.00, 0.50, 1.00, 1.50, 2.00, and 2.50 in mol%). Luminescence properties of the glasses were studied under two excitations of 585 and 750 nm for downconversion. From both excitations, the results show emission bands in NIR region corresponding to the transitions between4F3/2 → 4I9/2(900 nm),4F3/2 → 4I11/2(1,060 nm), and4F3/2 → 4I13/2(1,345 nm). The luminescence intensity obtained with 585 nm excitation was stronger than 750 nm, with the strongest NIR emission at 1,060 nm. The upconversion emission spectrum exhibits strong fluorescence bands in the UV region at 394 nm (λex=591 nm). The processes are associated with excited state absorption (ESA) from4F3/2level to4D3/2level and it is the radiative decay from the4D3/2to ground levels (4D3/2 → 4I13/2) which are responsible for the emission at 394 nm.

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