Fluorescence Spectra and Optical Transition Properties of Eu3+-Doped Ca3NbGa3Si2O14 Phosphor

被引：1

作者：

Pimpalkar, Akshay ^{[1
]}

Ugemuge, Nilesh S. ^{[1
]}

Mistry, Ashok A. ^{[1
]}

Dhale, Shruti ^{[1
]}

Joshi, Rujuta Barve ^{[2
]}

Khapre, Sarika A. ^{[2
]}

Patwardhan, Milind ^{[3
]}

Nithya, R. ^{[4
]}

Greeshma, K. ^{[5
]}

Nissamudeen, K. M. ^{[5
]}

机构：

[1] Anand Niketan Coll, Dept Phys, Warora 442907, India

[2] DY Patil Inst Technol, Pune 411018, India

[3] Bharati Vidyapeeths Coll Engn Women, Pune 411043, India

[4] St Martins Engn Coll, Dept Phys, Secunderabad 500100, India

[5] Kannur Univ, Dept Phys, Payyanur Campus, Kannur 670327, Kerala, India

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2025年 / 54卷 / 03期

关键词：

Photoluminescence; phosphor; silicate; Eu3+; Ca3NbGa3Si2O14; JUDD-OFELT ANALYSIS; ENERGY-TRANSFER; SPECTROSCOPIC PROPERTIES; EU3+ IONS; LUMINESCENCE; CRYSTAL; GLASSES;

D O I：

10.1007/s11664-024-11674-w

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A detailed analysis of Eu3+-doped Ca3NbGa3Si2O14 phosphor prepared via the solid-state method is reported. Powder x-ray diffraction (PXRD) confirms the hexagonal system with space group P321 (150). Morphological study validates the morphology and composition of the synthesized phosphor. The photoluminescence (PL) emission spectra reveal a unique red emission at 615 nm, attributed to the D-5(0) -> F-7(2) transition. The optimized Eu3+ concentration is found to be 5.0 mol.%. The CIE chromaticity coordinates are found to be (0.58, 0.41). Higher values of Omega(4 )confirm the highly symmetric environment around the Eu3+ site, lower covalence, and higher ionicity of the Eu-O bond character. The observed quantum efficiency of 33% for the sample with optimized concentration indicates more efficient emission of photons upon excitation, opening up the possibility of its potential use in several optical devices.

引用

页码：2264 / 2274

页数：11

共 41 条

[41] Dual-emitting from Bi3+/Eu3+ co-activated akermanite phosphor for optical thermometric applications [J].

Zhou, Liuyan ;

Ye, Renguang ;

Liu, Fuwen ;

Lin, Jianhua ;

Chen, Yanling ;

Fu, Jie ;

Guo, Weigang ;

Deng, Degang ;

Xu, Shiqing .

OPTICAL MATERIALS, 2021, 116

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