Influence of. γ-radiation on photoluminescence properties of YPO4:Eu3+, Ce3+ and YPO4:Dy3+,Ce3+ phosphors

被引：4

作者：

Gurugubelli, Sudheer ^{[1
]}

Dadhich, Anima S. ^{[1
]}

Saha, Abhijit ^{[2
]}

Mukkamala, Saratchandra Babu ^{[1
]}

机构：

[1] GITAM Univ, Dept Chem, Visakhapatnam 530045, Andhra Pradesh, India

[2] UGC DAE Consortium Sci Res, Kolkata 700098, WB, India

来源：

RADIATION EFFECTS AND DEFECTS IN SOLIDS | 2015年 / 170卷 / 10期

关键词：

yttrium phosphate; rare-earth ions; hydrothermal synthesis; photoluminescence; -irradiation; SINGLE-MOLECULE MAGNET; OPTICAL-PROPERTIES; LUMINESCENCE; NANOPARTICLES; ION; THERMOLUMINESCENCE; RELAXATION;

D O I：

10.1080/10420150.2015.1114620

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Hexagonal YPO4 phosphors doped with Eu3+/Dy3+ and co-doped with Ce3+ were synthesized by a hydrothermal route assisted using lauric acid as a capping agent. The prepared phosphors were characterized by transmission electron microscopy, infrared spectroscopy, powder X-ray diffraction and photoluminescence spectra. YPO4: Eu3+ gives two red emission peaks at 587 and 610nm corresponding to (D0F1)-D-5-F-7 and (D0F2)-D-5-F-7 transitions, respectively. YPO4: Dy3+ exhibits two emission peaks at 485nm (blue) and 575nm (yellow) corresponding to (F9/2H15/2)-F-4-H-6 and (F9/2H13/2)-F-4-H-6 transitions, respectively. Ce3+ ions enhanced the emission intensity as a co-dopant in both phosphors. Moreover, the effect of -radiation in the dose range 5-300kGy on the photoluminescence behaviour of YPO4:Eu3+,Ce3+ and YPO4:Dy3+,Ce3+ was also investigated. Quenching of emission intensity, after irradiation at 5 and 300kGy, was observed in both the phosphors due to loss of excess energy through a non-radiative relaxation process.

引用

页码：812 / 820

页数：9

共 36 条

[21] Biofunctionalization of fluorescent rare-earth-doped lanthanum phosphate colloidal nanoparticles [J].

Meiser, F ;

Cortez, C ;

Caruso, F .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (44) :5954-5957

[22] Luminescence studies of thallium co-doped KBr:Eu2+powder phosphors [J].

Nagarajan, S. ;

Sudarkodi, R. .

RADIATION EFFECTS AND DEFECTS IN SOLIDS, 2008, 163 (12) :915-924

[23] Soft chemistry routes to YPO4-based phosphors:: Dependence of textural and optical properties on synthesis pathways [J].

Nedelec, JM ;

Avignant, D ;

Mahiou, R .

CHEMISTRY OF MATERIALS, 2002, 14 (02) :651-655

[24] Hydrothermal treatment for preparation of europium-lanthanum phosphates and exploration of their fluorescence properties [J].

Onoda, Hiroaki ;

Funamoto, Takehiro .

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2014, 3 (02) :122-128

[25] Optical and rheological study of gamma irradiated rare-earth nanoparticle based ferrofluids [J].

Paul, Nibedita ;

Mohanta, Dambarudhar ;

Saha, Abhijit .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2012, 292 :45-49

[26] Radiation-induced defects in Eu3+-activated yttrium vanadates [J].

Pode, RB ;

Dhoble, SJ .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1998, 31 (01) :146-150

[27] Effect of gamma ray irradiation on optical properties of Nd doped phosphate glass [J].

Rai, V. N. ;

Sekhar, B. N. Raja ;

Kher, S. ;

Deb, S. K. .

JOURNAL OF LUMINESCENCE, 2010, 130 (04) :582-586

[28] Thermoluminescence studies of γ-irradiated nanocrystalline Y3Al5O12 [J].

Shivaramu, N. J. ;

Lakshminarasappa, B. N. ;

Nagabhushana, K. R. ;

Ramani ;

Singh, Fouran .

RADIATION EFFECTS AND DEFECTS IN SOLIDS, 2014, 169 (08) :696-705

[29] Preparation and time-resolved fluorometric application of luminescent europium nanoparticles [J].

Tan, MQ ;

Ye, ZQ ;

Wang, GL ;

Yuan, JL .

CHEMISTRY OF MATERIALS, 2004, 16 (12) :2494-2498

[30] Single-molecule toroics in Ising-type lanthanide molecular clusters [J].

Ungur, Liviu ;

Lin, Shuang-Yan ;

Tang, Jinkui ;

Chibotaru, Liviu F. .

CHEMICAL SOCIETY REVIEWS, 2014, 43 (20) :6894-6905

← 1 2 3 4 →