Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/4222
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dc.contributor.authorPradhan, Priyadarshini-
dc.contributor.authorVaidyanathan, Sivakumar-
dc.date.accessioned2024-01-04T05:30:50Z-
dc.date.available2024-01-04T05:30:50Z-
dc.date.issued2023-12-
dc.identifier.citation34th Annual General Meeting of MRSI and 5th Indian Materials conclave, IIT (BHU), Varanasi, 12-15 December 2023en_US
dc.identifier.urihttp://hdl.handle.net/2080/4222-
dc.descriptionCopyright belongs to proceeding publisheren_US
dc.description.abstractPhosphor based white LEDs (w-LED) have accomplished more consideration in modern technology to save energy and are widely used for versatile applications. A crucial and essential component in increasing the overall efficiency of the w-LED is the oxide based narrow band red emitting phosphor. In this regard, a series of Eu3+ -activated Na2La4(WO4)7 (NLW) red emitting phosphors were synthesized employing a solid-state approach, and their optical characteristics were thoroughly investigated. All compositions crystallize in a tetragonal structure with I41/a space group. Sharp red emission was exhibited by all the NLW:Eu3+ phosphors ∼616 nm owing to the ED transition (5D0→7 F2), under the excitation of 394 nm and observed concentration quenching when x = 0.8. In addition, the color purity and IQE of NLW:0.8Eu3+ phosphor were found to be 96.79% and 83.76%, respectively. The thermal stability of the phosphor is found to be 69.75% at 423 K according to a temperaturedependent PL analysis. Practical utility of the synthesized phosphors were determined by fabricating red and white LEDs. Moreover, latent fingerprint application is possible with this Eu3+ -doped red phosphors. Additionally, red/deep red LEDs were made for plant growth application by synthesizing simultaneous activation of Sm3+ and Eu3+ in NLW phosphors. These results indicated that the synthesized phosphors would be good phosphors for applications related to w-LED, latent fingerprint, and plant growth.en_US
dc.subjectEu3+ red phosphorsen_US
dc.subjectHybrid w-LEDen_US
dc.subjectPlant growthen_US
dc.subjectLatent Fingerprinten_US
dc.titleLanthanide-Based Deep Red-Emitting Phosphors for Hybrid White LEDs and Plant Growth Applicationsen_US
dc.typePresentationen_US
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