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White Emission from Dy 3+ Doped Borate Glass and their Judd-Ofelt Analysis
Yuliantini L.a, Hidayat R.a, Djamal M.a, Yasaka P.b, Boonin K.b, Kaewkhao J.b
a Department of Physics, Faculty of Mathematic and Natural Science, ITB, Bandung, Indonesia
b CEGM, NPRU, Nakhon Pathom, Thailand
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2017 IEEE. The high energy consumption and short lifetimes in the descendant and fluorescence lamps encourage to develop another lighting source which has high efficiency, long lifetimes and environmentally friendly. The material which has that advantages is the rare earth doped glasses. This paper explained Dy 3+ doped borate oxide glass which has been fabricated by melt and quenching method. The glass sample was melted at 1100° C for 3 hours and annealed at 500°C for 3 hours. Density and molar volume of glass sample increase by increasing 0.5 to 2.5 mol % Dy 2 O 3 . The glass sample quenched at 0.5 mol % Dy 2 O 3 . The XRD pattern confirmed the amorphous of prepared glass. The highest peak of absorption spectra occurs due to 6 F 9/2 → 6 F 11/2 transition centered at 1266 nm. The Judd-Ofelt parameters (Ω λ=2,4,6 × 10 -20 cm 2 ) of glass sample were 10.69, 4.81 and 5.17 respectively. The developed glass sample had the highest emission intensity (λ ex = 350 nm) and radiative properties in 4 F 9/2 → 6 H 15/2 and 4 F 9/2 → 6 H 13/2 transition centered at 482 nm (blue) and 575 nm (yellow) respectively. The combination of blue and yellow light produced white emission. It was proven by the CIE chromaticity that showed the white emission region (x = 0.37 and y=0.40). From all results, the glass sample was the suitable candidate for white emission light application.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Borate glass,Density and molar volumes,High energy consumption,Judd-Ofelt,Judd-ofelt analysis,Judd-Ofelt parameters,Radiative properties,Rare-earth doped glass[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Borate glass,dysprosium,Judd-Ofelt,luminescence[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]The author would like to thank Nakhon Pathom Rajabhat University for all facilities and supports. This work has been supported by PMDSU scholarship from Ministry of Research, Technology and Higher Education of the Republic of Indonesia (No. 328/SP2H/LT/DPRM/II/2016), and Research Grant of Asahi Glass Foundation (2624/I1.B04.1/KU/2017).[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1109/ICICI-BME.2017.8537758[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]