Energy transfer from Pr3+ to Gd3+ ions in BaB8O13 phosphor for phototherapy lamps

被引：31

作者：

Tamboli, Sumedha ^{[1
,2
]}

Nair, Govind B. ^{[1
]}

Dhoble, S. J. ^{[1
]}

Burghate, D. K. ^{[2
]}

机构：

[1] RTM Nagpur Univ, Dept Phys, Nagpur 440033, Maharashtra, India

[2] Shivaji Sci Coll, Nagpur 440012, Maharashtra, India

来源：

PHYSICA B-CONDENSED MATTER | 2018年 / 535卷

关键词：

BaB8O13; Energy transfer; Phototherapy; Photoluminescence; LUMINESCENT PROPERTIES; UV; PHOTOLUMINESCENCE; PSORIASIS;

D O I：

10.1016/j.physb.2017.07.042

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A series of BaB8O13 phosphors doped with different concentrations of Gd3+ ions and co-doped with Pr3+ ions were synthesized by solid state synthesis method. X-ray powder diffraction (XRD) analysis confirmed the formation of the compound in a crystalline and homogeneous form. Scanning Electron Microscopy (SEM) was performed to study the surface morphology of the compound and Fourier Transform Infrared (FT-IR) spectroscopy measurements determined the nature of bonding between elements of the compounds. The photoluminescence (PL) excitation spectra of BaB8O13:Gd3+ phosphor showed excitation peaks at 246 nm, 252 nm and 274 nm. The prominent emission peak was observed at 313 nm which is in narrow band ultraviolet B (NB-UVB) range. Energy transfer was achieved by co-doping Pr3+ ions with Gd3+ ions. PL decay time was also measured for BaB8O13:Gd3+, Pr3+ phosphor. Emission at 313 nm can be used for the treatment of skin diseases.

引用

页码：232 / 236

页数：5

共 24 条

[11] Targeted phototherapy of plaque-type psoriasis using ultraviolet B-light-emitting diodes [J].

Kemeny, L. ;

Csoma, Z. ;

Bagdi, E. ;

Banham, A. H. ;

Krenacs, L. ;

Koreck, A. .

BRITISH JOURNAL OF DERMATOLOGY, 2010, 163 (01) :167-173

[12] ON CRYSTAL STRUCTURE OF BARIUM TETRABORATE, BAO.4B2O3 [J].

KROGHMOE, J .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL CRYSTALLOGRAPHY AND CRYSTAL CHEMISTRY, 1969, B 25 :2153-&

[13] Mechanisms of ultraviolet (UV) B and UVA phototherapy [J].

Krutmann, J ;

Morita, A .

JOURNAL OF INVESTIGATIVE DERMATOLOGY SYMPOSIUM PROCEEDINGS, 1999, 4 (01) :70-72

[14] FTIR spectra of pseudo-binary sodium borate glasses containing TeO2 [J].

Mansour, E. .

JOURNAL OF MOLECULAR STRUCTURE, 2012, 1014 :1-6

[15]

McNiff S., 1985, Journal of the American Art Therapy Association, V2, P40

[16] Luminescent properties and particle morphology of Ca3(PO4)2:Gd3+, Pr3+ phosphor powder prepared by microwave assisted synthesis [J].

Mokoena, P. P. ;

Gohain, M. ;

Bezuidenhoudt, B. C. B. ;

Swart, H. C. ;

Ntwaeaborwa, O. M. .

JOURNAL OF LUMINESCENCE, 2014, 155 :288-292

[17] Enhanced UVB emission and analysis of chemical states of Ca5(PO4)3OH:Gd3+,Pr3+ phosphor prepared by co-precipitation [J].

Mokoena, P. P. ;

Nagpure, I. M. ;

Kumar, Vinay ;

Kroon, R. E. ;

Olivier, E. J. ;

Neethling, J. H. ;

Swart, H. C. ;

Ntwaeaborwa, O. M. .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2014, 75 (08) :998-1003

[18] UVB-emitting Gd3+-activated M2O2S (where M = La, Y) for phototherapy lamp phosphors [J].

Shinde, V. V. ;

Kunghatkar, R. G. ;

Dhoble, S. J. .

LUMINESCENCE, 2015, 30 (08) :1257-1262

[19] Investigation of new UV-emitting, Gd-activated Y4Zr3O12 phosphors prepared via combustion method [J].

Singh, Vijay ;

Sivaramaiah, G. ;

Rao, J. L. ;

Kim, S. H. .

JOURNAL OF LUMINESCENCE, 2015, 157 :82-87

[20]

Sonekar RP, 2009, INDIAN J PURE AP PHY, V47, P441

← 1 2 3 →