The Experts below are selected from a list of 225 Experts worldwide ranked by ideXlab platform
C.k. Jayasankar - One of the best experts on this subject based on the ideXlab platform.
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Blue–green cooperative upconverted luminescence and radiative energy transfer in Yb3+-doped tungsten tellurite glass
Journal of Luminescence, 2016Co-Authors: P. Babu, Inocencio R. Martín, G. Venkataiah, Vemula Venkatramu, Víctor Lavín, C.k. JayasankarAbstract:Abstract Ytterbium-doped tungsten tellurite glasses have been prepared and studied their cooperative upconverted luminescence and radiative energy transfer properties. In a 3.0 mol% Yb 2 O 3 -doped glass, near-infrared Emission Band is peaked at around 977 nm with a full width at half maximum of around 15 nm. This glass emits blue–green upconverted Emission under 980 nm excitation due to cooperative processes involving two interacting Yb 3+ ions. The upconverted Emission Band is centered at around 502 nm with a Bandwidth of around 45 nm. Power dependence of cooperative Emission intensity and the temporal evolutions of the near-infrared and blue–green Emissions confirm the presence of cooperative luminescence. Photoluminescence and lifetimes have been measured by moving the laser excitation from one edge of the sample and found that radiative energy transfer is predominant in 3.0 mol% of Yb 2 O 3 -doped glass. The absorption coefficient obtained from absorption spectrum is in good agreement with that obtained by fitting the curve of luminescence intensity versus distance from the edge of the sample.
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blue green cooperative upconverted luminescence and radiative energy transfer in yb3 doped tungsten tellurite glass
Journal of Luminescence, 2016Co-Authors: P. Babu, Inocencio R. Martín, G. Venkataiah, Vemula Venkatramu, Víctor Lavín, C.k. JayasankarAbstract:Abstract Ytterbium-doped tungsten tellurite glasses have been prepared and studied their cooperative upconverted luminescence and radiative energy transfer properties. In a 3.0 mol% Yb 2 O 3 -doped glass, near-infrared Emission Band is peaked at around 977 nm with a full width at half maximum of around 15 nm. This glass emits blue–green upconverted Emission under 980 nm excitation due to cooperative processes involving two interacting Yb 3+ ions. The upconverted Emission Band is centered at around 502 nm with a Bandwidth of around 45 nm. Power dependence of cooperative Emission intensity and the temporal evolutions of the near-infrared and blue–green Emissions confirm the presence of cooperative luminescence. Photoluminescence and lifetimes have been measured by moving the laser excitation from one edge of the sample and found that radiative energy transfer is predominant in 3.0 mol% of Yb 2 O 3 -doped glass. The absorption coefficient obtained from absorption spectrum is in good agreement with that obtained by fitting the curve of luminescence intensity versus distance from the edge of the sample.
P. Babu - One of the best experts on this subject based on the ideXlab platform.
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Blue–green cooperative upconverted luminescence and radiative energy transfer in Yb3+-doped tungsten tellurite glass
Journal of Luminescence, 2016Co-Authors: P. Babu, Inocencio R. Martín, G. Venkataiah, Vemula Venkatramu, Víctor Lavín, C.k. JayasankarAbstract:Abstract Ytterbium-doped tungsten tellurite glasses have been prepared and studied their cooperative upconverted luminescence and radiative energy transfer properties. In a 3.0 mol% Yb 2 O 3 -doped glass, near-infrared Emission Band is peaked at around 977 nm with a full width at half maximum of around 15 nm. This glass emits blue–green upconverted Emission under 980 nm excitation due to cooperative processes involving two interacting Yb 3+ ions. The upconverted Emission Band is centered at around 502 nm with a Bandwidth of around 45 nm. Power dependence of cooperative Emission intensity and the temporal evolutions of the near-infrared and blue–green Emissions confirm the presence of cooperative luminescence. Photoluminescence and lifetimes have been measured by moving the laser excitation from one edge of the sample and found that radiative energy transfer is predominant in 3.0 mol% of Yb 2 O 3 -doped glass. The absorption coefficient obtained from absorption spectrum is in good agreement with that obtained by fitting the curve of luminescence intensity versus distance from the edge of the sample.
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blue green cooperative upconverted luminescence and radiative energy transfer in yb3 doped tungsten tellurite glass
Journal of Luminescence, 2016Co-Authors: P. Babu, Inocencio R. Martín, G. Venkataiah, Vemula Venkatramu, Víctor Lavín, C.k. JayasankarAbstract:Abstract Ytterbium-doped tungsten tellurite glasses have been prepared and studied their cooperative upconverted luminescence and radiative energy transfer properties. In a 3.0 mol% Yb 2 O 3 -doped glass, near-infrared Emission Band is peaked at around 977 nm with a full width at half maximum of around 15 nm. This glass emits blue–green upconverted Emission under 980 nm excitation due to cooperative processes involving two interacting Yb 3+ ions. The upconverted Emission Band is centered at around 502 nm with a Bandwidth of around 45 nm. Power dependence of cooperative Emission intensity and the temporal evolutions of the near-infrared and blue–green Emissions confirm the presence of cooperative luminescence. Photoluminescence and lifetimes have been measured by moving the laser excitation from one edge of the sample and found that radiative energy transfer is predominant in 3.0 mol% of Yb 2 O 3 -doped glass. The absorption coefficient obtained from absorption spectrum is in good agreement with that obtained by fitting the curve of luminescence intensity versus distance from the edge of the sample.
Jiahua Zhang - One of the best experts on this subject based on the ideXlab platform.
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a new Emission Band of eu2 and its efficient energy transfer to mn2 in sr2mg3p4o15 mn2 eu2
ChemInform, 2012Co-Authors: Zhendong Hao, Xia Zhang, Yongshi Luo, Jiahua ZhangAbstract:Eu2+-doped and Eu2+/Mn2+ co-doped Sr2Mg3P4O15 exhibit a new Emission Band centered at 399 nm in addition to the well known Band at 448 nm.
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a new Emission Band of eu2 and its efficient energy transfer to mn2 in sr2mg3p4o15 mn2 eu2
Chemical Communications, 2011Co-Authors: Zhendong Hao, Xia Zhang, Yongshi Luo, Jiahua ZhangAbstract:Eu2+ singly and Eu2+, Mn2+ co-doped Sr2Mg3P4O15 exhibit not only the well known blue Emission Band of Eu2+ peaking at 448 nm but also a new Band at 399 nm in violet. They are attributed to Eu2+ on different Sr2+ sites. The Eu2+ for the violet Band can transfer energy to the red emitting Mn2+ more efficiently than Eu2+ for the blue Band. The new Eu2+ Band could enable Sr2Mg3P4O15:Mn2+, Eu2+ to be a promising phosphor for enriching the red component of white LEDs.
Víctor Lavín - One of the best experts on this subject based on the ideXlab platform.
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Blue–green cooperative upconverted luminescence and radiative energy transfer in Yb3+-doped tungsten tellurite glass
Journal of Luminescence, 2016Co-Authors: P. Babu, Inocencio R. Martín, G. Venkataiah, Vemula Venkatramu, Víctor Lavín, C.k. JayasankarAbstract:Abstract Ytterbium-doped tungsten tellurite glasses have been prepared and studied their cooperative upconverted luminescence and radiative energy transfer properties. In a 3.0 mol% Yb 2 O 3 -doped glass, near-infrared Emission Band is peaked at around 977 nm with a full width at half maximum of around 15 nm. This glass emits blue–green upconverted Emission under 980 nm excitation due to cooperative processes involving two interacting Yb 3+ ions. The upconverted Emission Band is centered at around 502 nm with a Bandwidth of around 45 nm. Power dependence of cooperative Emission intensity and the temporal evolutions of the near-infrared and blue–green Emissions confirm the presence of cooperative luminescence. Photoluminescence and lifetimes have been measured by moving the laser excitation from one edge of the sample and found that radiative energy transfer is predominant in 3.0 mol% of Yb 2 O 3 -doped glass. The absorption coefficient obtained from absorption spectrum is in good agreement with that obtained by fitting the curve of luminescence intensity versus distance from the edge of the sample.
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blue green cooperative upconverted luminescence and radiative energy transfer in yb3 doped tungsten tellurite glass
Journal of Luminescence, 2016Co-Authors: P. Babu, Inocencio R. Martín, G. Venkataiah, Vemula Venkatramu, Víctor Lavín, C.k. JayasankarAbstract:Abstract Ytterbium-doped tungsten tellurite glasses have been prepared and studied their cooperative upconverted luminescence and radiative energy transfer properties. In a 3.0 mol% Yb 2 O 3 -doped glass, near-infrared Emission Band is peaked at around 977 nm with a full width at half maximum of around 15 nm. This glass emits blue–green upconverted Emission under 980 nm excitation due to cooperative processes involving two interacting Yb 3+ ions. The upconverted Emission Band is centered at around 502 nm with a Bandwidth of around 45 nm. Power dependence of cooperative Emission intensity and the temporal evolutions of the near-infrared and blue–green Emissions confirm the presence of cooperative luminescence. Photoluminescence and lifetimes have been measured by moving the laser excitation from one edge of the sample and found that radiative energy transfer is predominant in 3.0 mol% of Yb 2 O 3 -doped glass. The absorption coefficient obtained from absorption spectrum is in good agreement with that obtained by fitting the curve of luminescence intensity versus distance from the edge of the sample.
Vemula Venkatramu - One of the best experts on this subject based on the ideXlab platform.
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Blue–green cooperative upconverted luminescence and radiative energy transfer in Yb3+-doped tungsten tellurite glass
Journal of Luminescence, 2016Co-Authors: P. Babu, Inocencio R. Martín, G. Venkataiah, Vemula Venkatramu, Víctor Lavín, C.k. JayasankarAbstract:Abstract Ytterbium-doped tungsten tellurite glasses have been prepared and studied their cooperative upconverted luminescence and radiative energy transfer properties. In a 3.0 mol% Yb 2 O 3 -doped glass, near-infrared Emission Band is peaked at around 977 nm with a full width at half maximum of around 15 nm. This glass emits blue–green upconverted Emission under 980 nm excitation due to cooperative processes involving two interacting Yb 3+ ions. The upconverted Emission Band is centered at around 502 nm with a Bandwidth of around 45 nm. Power dependence of cooperative Emission intensity and the temporal evolutions of the near-infrared and blue–green Emissions confirm the presence of cooperative luminescence. Photoluminescence and lifetimes have been measured by moving the laser excitation from one edge of the sample and found that radiative energy transfer is predominant in 3.0 mol% of Yb 2 O 3 -doped glass. The absorption coefficient obtained from absorption spectrum is in good agreement with that obtained by fitting the curve of luminescence intensity versus distance from the edge of the sample.
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blue green cooperative upconverted luminescence and radiative energy transfer in yb3 doped tungsten tellurite glass
Journal of Luminescence, 2016Co-Authors: P. Babu, Inocencio R. Martín, G. Venkataiah, Vemula Venkatramu, Víctor Lavín, C.k. JayasankarAbstract:Abstract Ytterbium-doped tungsten tellurite glasses have been prepared and studied their cooperative upconverted luminescence and radiative energy transfer properties. In a 3.0 mol% Yb 2 O 3 -doped glass, near-infrared Emission Band is peaked at around 977 nm with a full width at half maximum of around 15 nm. This glass emits blue–green upconverted Emission under 980 nm excitation due to cooperative processes involving two interacting Yb 3+ ions. The upconverted Emission Band is centered at around 502 nm with a Bandwidth of around 45 nm. Power dependence of cooperative Emission intensity and the temporal evolutions of the near-infrared and blue–green Emissions confirm the presence of cooperative luminescence. Photoluminescence and lifetimes have been measured by moving the laser excitation from one edge of the sample and found that radiative energy transfer is predominant in 3.0 mol% of Yb 2 O 3 -doped glass. The absorption coefficient obtained from absorption spectrum is in good agreement with that obtained by fitting the curve of luminescence intensity versus distance from the edge of the sample.