The structural, morphological and optical studies on BaAl2O4/MgAl2O4/ MgO:x% Gd3+ (0 ≤ x ≤ 1.1) mixed phases synthesized by sol-gel method

被引：0

作者：

Bele, A. ^{[1
]}

Mhlongo, M. R. ^{[1
]}

Koao, L. F. ^{[2
]}

Motaung, T. E. ^{[3
,4
]}

Kroon, R. E. ^{[5
]}

Hlatshwayo, T. T. ^{[6
]}

Motloung, S. V. ^{[1
,7
]}

机构：

[1] Sefako Makgatho Hlth Sci Univ, Dept Phys, POB 94, ZA-0204 Medunsa, South Africa

[2] Univ Free State Qwaqwa Campus, Dept Phys, Private Bag X13, ZA-9866 Phuthaditjhaba, South Africa

[3] Sefako Makgatho Hlth Sci Univ, Dept Chem, POB 65, ZA-0204 Medunsa, South Africa

[4] Univ South Africa, Dept Chem, PO Box 392 UNISA, ZA-0003 Pretoria, South Africa

[5] Univ Free State, Dept Med Phys, POB 339, ZA-9300 Bloemfontein, South Africa

[6] Univ Pretoria, Dept Phys, ZA-0002 Pretoria, South Africa

[7] North West Univ Mafikeng Campus, Dept Phys & Elect, Mat Sci Innovat & Modelling MaSIM Res Focus Area, Mmabatho, South Africa

来源：

PHYSICA B-CONDENSED MATTER | 2024年 / 673卷

基金：

芬兰科学院; 新加坡国家研究基金会;

关键词：

Mixed phases; Photoluminescence; Intrinsic defects; Gd3+; LUMINESCENCE PROPERTIES; COMBUSTION SYNTHESIS; BAND-GAP; PHOTOLUMINESCENCE; NANOPHOSPHORS; NANOPARTICLES; EMISSION; TB3+;

D O I：

10.1016/j.physb.2023.415525

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this study, BaAl2O4/MgAl2O4/MgO:x% Gd3+ (BMM:x% Gd3+) (0 <= x <= 1.1) mixed phases nanophosphors were prepared for the first-time using sol-gel method. The effect of Gd3+ concentration on the morphology, structure, and optical characteristics were examined. X-ray diffraction (XRD) confirmed the presence of hexagonal (BaAl2O4), cubic (MgAl2O4 and MgO) phases. Varying the Gd3+ concentration has no significant influence on the prepared nanophosphors morphology. Energy dispersive X-ray spectroscopy (EDS) confirmed the presence of the anticipated elementary compositions. Photoluminescence (PL) results showed three emissions peaks located around 312, 616 and 730 nm. The emission peak at 312 nm was ascribed to P-6(7/2)-> S-6(7/2) transition in Gd3+ whereas other emission peaks originated from other impurities such as Cr3+.

引用

页数：8

共 38 条

[1]

Abbas M. M., 2021, Journal of Physics: Conference Series, V1795, DOI [10.1088/1742-6596/1795/1/012059, 10.1088/1742-6596/1795/1/012059]

[2] Photoluminescence, thermoluminescence, and cathodoluminescence of optimized cubic Gd2O3:Bi phosphor powder [J].

Abdelrehman, Mogahid H. M. ;

Kroon, Robin E. ;

Yousif, Abdelrhman ;

Seed Ahmed, Hassan A. A. ;

Swart, Hendrik C. .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2020, 38 (06)

[3] Synthesis and characterization of magnesium aluminate (MgAl2O4 ) spinel (MAS) thin films [J].

Ahmad, Syed Muhammad ;

Hussain, Tousif ;

Ahmad, Riaz ;

Siddiqui, Jamil ;

Ali, Dilawar .

MATERIALS RESEARCH EXPRESS, 2018, 5 (01)

[4] SYNTHESIS OF NANOCRYSTALLINE MGAL2O4 SPINEL BY USING ETHYLENE DIAMINE AS PRECIPITATION AGENT [J].

Alvar, E. Navaei ;

Rezaei, M. ;

Alvar, H. Navaei ;

Feyzallahzadeh, H. ;

Yan, Zi-Feng .

CHEMICAL ENGINEERING COMMUNICATIONS, 2009, 196 (11) :1417-1424

[5] Combustion synthesis and nanomaterials [J].

Aruna, Singanahally T. ;

Mukasyan, Alexander S. .

CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 2008, 12 (3-4) :44-50

[6] Microstructure, optical and photocatalytic properties of MgO nanoparticles [J].

Balakrishnan, G. ;

Velavan, R. ;

Batoo, Khalid Mujasam ;

Raslan, Emad H. .

RESULTS IN PHYSICS, 2020, 16

[7] Photoluminescence and cathodoluminescence of BaAl2O4:Eu2+ and undoped BaAl2O4: evidence for F-centres [J].

den Engelsen, Daniel ;

Fern, George R. ;

Ireland, Terry G. ;

Yang, Fengli ;

Silver, Jack .

OPTICAL MATERIALS EXPRESS, 2020, 10 (08) :1962-1980

[8] Cathodoluminescence of Nanocrystalline Y2O3:Eu3+ with Various Eu3+ Concentrations [J].

den Engelsen, Daniel ;

Harris, Paul ;

Ireland, Terry ;

Silver, Jack .

ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY, 2015, 4 (02) :R1-R9

[9]

Freeda M., 2017, Materials Today: Proceedings, V4, P4283, DOI [10.1016/j.matpr.2017.02.132, 10.1016/j.matpr.2017.02.132]

[10] Structural investigation of the SrAl2O4-BaAl2O4 solid solution system with unstable domain walls [J].

Ishii, Y. ;

Tsukasaki, H. ;

Kawaguchi, S. ;

Ouchi, Y. ;

Mori, S. .

JOURNAL OF SOLID STATE CHEMISTRY, 2017, 249 :149-153

← 1 2 3 4 →