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[期刊论文]

Brightness Control of Mn4+-Doped Ca2LaTaO6 Double Perovskite Red Emitters in a Noncontact Circuit System

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author:

Wang, Jing (Wang, Jing.) [1] | Zheng, Xingke (Zheng, Xingke.) [2] | Gao, Jiaqi (Gao, Jiaqi.) [3] | Unfold

Indexed by:

Scopus SCIE

Abstract:

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.

Keyword:

Double perovskite Luminescent properties Noncontact Red emitters

Community:

  • [ 1 ] [Wang, Jing]Southeast Univ, Sch Integrated Circuits, Nanjing 210032, Peoples R China
  • [ 2 ] [Jiang, Zhe]Southeast Univ, Sch Integrated Circuits, Nanjing 210032, Peoples R China
  • [ 3 ] [Zheng, Xingke]Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou 350108, Peoples R China
  • [ 4 ] [Gao, Jiaqi]Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou 350108, Peoples R China
  • [ 5 ] [Luo, Yue]Southeast Univ, Sch Elect Sci & Engn, Nanjing 210032, Peoples R China

Reprint 's Address:

  • [Jiang, Zhe]Southeast Univ, Sch Integrated Circuits, Nanjing 210032, Peoples R China;;[Zheng, Xingke]Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou 350108, Peoples R China

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Source :

CHEMISTRYSELECT

ISSN: 2365-6549

Year: 2025

Issue: 17

Volume: 10

1 . 9 0 0

JCR@2023

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count:

30 Days PV: 0

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