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The rapid adoption of light emitting diodes technology stems from its high efficiency, long lifespan, and energy-saving capabilities. However, achieving high-quality white light emitting diodes, particularly through the integration of efficient red emitters, remains a significant challenge. This study reports the synthesis of Ca2La(Ta,Mn)O-6 double perovskite red emitters via high-temperature solid-state reactions. The material exhibits a strong red emission peak at 691 nm, attributed to Mn-4(+) ions at symmetrical [TaO6](7)(-) octahedral sites, confirmed by g = 2.008 in electron paramagnetic resonance spectroscopy. The UV excitation spectrum (250-600 nm) and thermal stability were analyzed, showing a retained optical intensity of 41% at 423 K. Additionally, a red emitter was developed, and a noncontact LCC-S wireless power transfer driving system was constructed. The system demonstrated adjustable luminescence under varying input voltages (4-7.3 V) and frequencies (90-110 kHz), highlighting its potential for dynamic lighting applications. These findings suggest Ca2La(Ta,Mn)O6 double perovskite as a promising candidate for indoor lighting and noncontact circuit systems.
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CHEMISTRYSELECT
ISSN: 2365-6549
Year: 2025
Issue: 17
Volume: 10
1 . 9 0 0
JCR@2023
CAS Journal Grade:4
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