Effects of annealer temperature on the structural, optical, and morphological properties of Eu3+-doped Bi2MoO6 thin films

被引：3

作者：

Cho, Shinho ^{[1
]}

机构：

[1] Silla Univ, Dept Mat Sci & Engn, Busan 46958, South Korea

来源：

THIN SOLID FILMS | 2022年 / 751卷

基金：

新加坡国家研究基金会;

关键词：

Thin film; Sputtering; Photoluminescence; Heat treatments; Oxides; X-ray diffraction; RED-EMITTING PHOSPHOR; PHOTOLUMINESCENCE;

D O I：

10.1016/j.tsf.2022.139208

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structural, optical, and morphological properties of radio-frequency magnetron-sputtered Bi2MoO6:Eu3+ thin-film phosphors annealed at four different temperatures were investigated. All the Bi2MoO6:Eu3+ thin-film phosphors, regardless of the annealer temperature, crystallized in a monoclinic phase with two dominant ((3) over bar 41) and (341) peaks. The 700 degrees C heat-treated sample exhibited small grain islands in the initial stages of the grain-boundary formation, which changed to many polygon-shaped grains enclosed by distinct grain boundaries upon increasing the temperature to 1000 degrees C. Under 307 nm excitation, all the Bi2MoO6:Eu3+ thin-film phosphors exhibited a dominant D-5(0)-> F-7(2) electric dipole transition (615 nm) of Eu3+ ions, and the asymmetry factors were greater than unity, indicating that numerous Eu3+ ions occupied sites with no inversion center. With an increase in the annealer temperature, the bandgap decreased and the emission color shifted from yellow to reddish-orange. These results confirm that the properties of the red-light-emitting Bi2MoO6:Eu3+ thin-film phosphors can be modulated by varying the annealer temperature.

引用

页数：5

共 20 条

[1] The influence of oxygen partial pressure on material properties of Eu3+-doped Y2O2S thin film deposited by Pulsed Laser Deposition [J].

Ali, A. G. ;

Dejene, B. F. ;

Swart, H. C. .

PHYSICA B-CONDENSED MATTER, 2016, 480 :174-180

[2] Facile low temperature synthesis and characterization of bismuth molybdate (Bi2MoO6) nanostructures: An effect surfactant concentration [J].

Ali, H. Elhosiny ;

Khairy, Yasmin .

OPTIK, 2019, 178 :90-96

[3]

Alkhayatt A.H.O., 2014, Adv. Phys. Theor. Appl, V34, P1

[4] Eu3+ activated molybdates – Structure property relations [J].

Baur F. ;

Jüstel T. .

Optical Materials: X, 2019, 1

[5] Effects of thermal annealing on the structural and electrical properties of ZnO thin films for boosting their piezoelectric response [J].

Bui, Quang Chieu ;

Salem, Bassem ;

Roussel, Herve ;

Mescot, Xavier ;

Guerfi, Youssouf ;

Jimenez, Carmen ;

Consonni, Vincent ;

Ardila, Gustavo .

JOURNAL OF ALLOYS AND COMPOUNDS, 2021, 870

[6] Photoluminescence and cathodoluminescence properties of Eu3+ ions activated AMoO4 (A = Mg, Ca, Sr, Ba) phosphors [J].

Du, Peng ;

Yu, Jae Su .

MATERIALS RESEARCH BULLETIN, 2015, 70 :553-558

[7] Thermal/luminescence characterization and degradation mechanism analysis on phosphor-converted white LED chip scale packages [J].

Fan, Jiajie ;

Yu, Chaohua ;

Qian, Cheng ;

Fan, Xuejun ;

Zhang, Guoqi .

MICROELECTRONICS RELIABILITY, 2017, 74 :179-185

[8] Effects of doping by aluminum or lanthanum on the electrical and electroluminescence properties of Ca0.6Sr0.4TiO3:Pr thin films [J].

Kyomen, Toru ;

Aramaki, Kohei ;

Kakubari, Yuko ;

Takashima, Hiroshi .

JOURNAL OF LUMINESCENCE, 2019, 207 :424-429

[9] A new red-emitting phosphor of Eu3+-doped Sr2MgMoxW1-xO6 for solid state lighting [J].

Li, Shuo ;

Wei, Xiantao ;

Deng, Kaimo ;

Tian, Xiuna ;

Qin, Yanguang ;

Chen, Yonghu ;

Yin, Min .

CURRENT APPLIED PHYSICS, 2013, 13 (07) :1288-1291

[10] Energy transfer and luminescence properties of Ba2CaMoO6:Eu3+ phosphors prepared by sol-gel method [J].

Li, Yuntong ;

Liu, Xiaohua .

OPTICAL MATERIALS, 2015, 42 :303-308

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