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Browsing by Author "Athira, K V R"

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Color Tunable Pigments with High NIR Reflectance in Terbium-Doped Cerate Systems for Sustainable Energy Saving Applications

Athira, K V R; Rao, P P; Sreena, T S (American Chemical Society, 2019-04-15)

Color tunable pigments from yellow to red hues were developed in Tb-doped A2CeO4 (A = Sr and Ba) system by the conventional ceramic route. The developed pigments were analyzed for their phase purity, chemical oxidation ...
Enhanced Near Infrared Reflectance with Brilliant Yellow Hues in Scheelite Type Solid Solutions, (LiLaZn)1/3MoO4−BiVO4 for Energy Saving Products

Aju Thara, T R; Prabhakar Rao, P; Divya, S; Athira, K V R; Sreena, T S (American Chemical Society, 2017-06)

Enhanced near infrared (NIR) solar reflectance with interesting yellow hues in a new series of scheelite type solid solutions, [(LiLaZn)x/3Bi1−x][MoxV1−x]O4 (x = 0, 0.1, 0.2, 0.3, 0.4) were synthesized via conventional ...
Influence of Morphology on Luminescence Properties of Xenotime-type Phosphors NaYP2O7:Eu3+ Synthesized via Solid State and Citrate-gel Routes

Sreena, T S; Prabhakar Rao, P; Ajmal, K N; Athira, K V R (Springer, 2018-05)

A series of Eu3+ activated xenotime type rare earth phosphate NaYP2O7 based orange–red emitting phosphors have been prepared via solid state (SS) and citrate gel (CG) methods. The morphological variation of the developed ...
Narrow-band Red-emitting Phosphor, Gd3Zn2Nb3O14:Eu3+ with High Color Purity for Phosphor-converted White Light Emitting Diodes

Sreena, T S; Prabhakar Rao, P; Athira, K V R; Aju Thara, T R (Elsevier, 2018-06-30)

In this work, we synthesized and characterized a narrow band red emitting Gd3Zn2Nb3O14:Eu3þ phosphor in order to improve the color qualities of warm white light emitting diodes. The phosphors were synthesized via conventional ...
New narrow orange-emitting phosphors in 1:2 B-site cation ordered Eu3+ doped triple perovskite Ba3CaNb2O9

Aswathy, B A; Rao, P P; Suchithra, V G; Athira, K V R (Springer, 2021-05)

A new series of narrow orange emitting phosphors in 1:2 B-site cation ordered Eu3+ doped triple Perovskite Ba3CaNb2O9 was prepared by the conventional solid-state route. Powder X-ray diffraction analysis of these phosphors ...
Novel Molybdenum based Pyrochlore Type Red Phosphors, NaGd1−xSnMoO7: xEu3+ under Near UV and Blue Excitation

Reshmi, V R; Prabhakar Rao, P; Athira, K V R; Sreena, T S (Elsevier, 2017-10)

Novel molybdenum based pyrochlore type red emitting phosphor materials: NaGd1−xSnMoO7: xEu3+ were prepared by the conventional solid state route. The developed phosphors were characterized for their structure as well as ...
Pigmentary Colors from Yellow to Red in Bi2ce2o7 by Rare Earth Ion Substitutions as Possible High NIR Reflecting Pigments

Athira, K V R; Rao, P P; Sreena, T S; Thara, T R A (ScienceDirect, 2019-01)

A new series of high near-infrared (NIR) reflecting pigments with colors ranging from yellow to red by tuning the Bi2Ce2O7 with rare earth ion substitutions on both A and B sites were synthesized by a solid state reaction ...
Pigmentary colors from yellow to red in Bi2Ce2O7 by rare earth ion substitutions as possible high NIR reflecting pigments

Athira, K V R; Prabhakar Rao, P; Sreena, T S; Aju Thara, T R (Elsevier, 2018-09)

A new series of high near-infrared (NIR) reflecting pigments with colors ranging from yellow to red by tuning the Bi2Ce2O7 with rare earth ion substitutions on both A and B sites were synthesized by a solid state ...
Synthesis and Optical Properties of Europium and Terbium Doped Cerium Based Oxides

Athira, K V R (Materials Science and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR), Thiruvananthapuram, 2018-11-07)

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