HE Gan-wu, LIU Ying-liang, LEI Bing-fu. Luminescence Properties of CaSnO<sub>3</sub>:Pr<sup>3+</sup> Perovskite Phosphor[J]. Chinese Journal of Luminescence, 2007,28(3): 389-392
HE Gan-wu, LIU Ying-liang, LEI Bing-fu. Luminescence Properties of CaSnO<sub>3</sub>:Pr<sup>3+</sup> Perovskite Phosphor[J]. Chinese Journal of Luminescence, 2007,28(3): 389-392DOI:
Luminescence Properties of CaSnO3:Pr3+ Perovskite Phosphor
the sulfide phosphors have been used as a long-lasting phosphor. However
the sulfide phosphors are not stable and bright enough for many applications. So there has been a great demand for new type host lattices substitutes in recent years. Since scientists firstly reported the green and blue color emitting long-lasting phosphorescence phenomenon from the Eu
2+
-doped alkaline earth aluminates
the oxide-based long-lasting phosphorescent materials
especially the aluminate-base and the silicate-base luminescent host lattices have attracted more and more attention and have been developed rapidly to replace the conventional long-lasting phosphorescent materials. The compounds with perovskite structure are a kind of important luminescent hosts and were paied attention to by researchers in recent years. For example
CaTiO
3
:Pr
3+
was found that it has a red long-lasting phosphorescence and it shoots a wavelength to locate at 613nm
which belongs to the
1
D
2
3
H
4
transition of Pr
3+
. The red phosphor SrTiO
3
:Pr
3+
Al
3+
was synthesized and found that there exists the energy transfer to Pr
3+
from co-doped Al. Although stannum is not the same group elements with titanium
its four value states are quite stable and form perovskite structure with alkaline-earth metals oxides. The titanates and stannates of alkaline-earth metals should be one of important materials with afterglow properties as alkali-earth aluminates. The novel phosphors
CaSnO
3
:Pr
3+
are prepared by the conventional high-temperature solid-state method and their luminescent properties are systematically investigated. XRD
photoluminescence
long-lasting phosphorescence and thermoluminescence spectra are used to characterize the synthesized phosphors. After irradiation under 254nm UV light
these phosphors emit near white light and their phosphorescence can be seen with the naked eye in the darkroom clearly. The result of our research reveal that the CaSnO
3
:Pr
3+
phosphor maybe a novel practical long-lasting phosphorescence phosphor. This is the first time observation of long-lasting phosphorescence in alkaline-earth stannates with perov-skite structure and is of value significance in both realizing mechanism of long-lasting phosphorescence and developing new long afterglow materials of practical application.
Zhang H J,Liu L Y.Synthesis and luminescent properties of CaTiO3:Pr3+[J].Rare Metals and Cemented Carbides (稀有金属与硬质合金),1999,6(2):38-39 (in Chinese).[2] Liu L,Zeng L,Lian S,et al.Synthesis and luminescence characteristics of CaTiO3:Pr3+ phosphors[J].Hunan Nonferrous Metals (湖南有色金属),1998,14(5):45-47 (in Chinese).[3] Okamoto S,Kobayashi H,Yamamoto H.Enhancement of characteristic red emission from SrTiO3:Pr3+ by Al addition[J].J.Appl.Phys.,1999,86(10):5594-5597.[4] Park J K,Ryu H,Kim K H,et al.Observation of energy transfer between Al3+ and Pr3+ in SrTiO3 phosphor[J].Electrochem.Solid-State Lett.,2003,3(2):110-112.[5] Vegas A,Vallet-Regi M,Gonzalez-Calbet J M,et al.The ASnO3(A=Ca,Sr) perovskites[J].Acta Cryst.B,1986,42(2):167-172.[6] Vink A P,Dorenbos P,de Haas J T M,et al.Photo cascade emission in SrAlF5:Pr3+[J].J.Phys.:Condens Mater.,2002,14(38):8889-8899.[7] Rodnyi P A,Dorenbos P,Stryganyuk G B,et al.Emission of Pr3+ in SrAl12O9 under vacuum ultraviolet synchrotron excitation[J].J.Phys.:Condens Mater.,2003,15(4):719-729.[8] Lian S,Lin J,Su M.Syntheses and luminescent properties of Ca1-xZnxTiO3:Pr3+,R+(R+=Li+,Na+,K+,Rb+,Cs+,Ag+)[J].J.Chin.Rare Earth Soc.(中国稀土学报),2001,19(6):602-605 (in Chinese).[9] Hoefdraad H E,Blasse G.Green emitting praseodymium in calcium zirconate[J].Phys.Stat.Sol.(a),1975,29:K95-97.
Photodetector with Broadband-narrowband Dual-function Detection Mode
Cs2(Ag∶Cu)BiBr6 Double Perovskite Solar Cells
Enhanced Performance of Pure-red Perovskite Light-emitting Diodes by Surface Modification with Guanidine Acetate
Enhanced Electroluminescence Properties of Tin-based Perovskites by Vitamin C Additives
Preparation and Research Progress of Lead-free Perovskite Light Emitting Diodes
Related Author
JIANG Yan
GAO Feng
LI Lin
CAO Shishuang
WANG Baoning
LI Lin
SHI Mingming
JIANG Ji
Related Institution
Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University
Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences
Key Lab of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences
State Key Laboratory of Physical Chemistry of Solid Surfaces