浏览全部资源
扫码关注微信
Ca4LaNbMo4O20:Pr3+荧光粉的发光性质
Photoluminescence Characteristics of Ca4LaNbMo4O20∶Pr3+
- 发光学报 2012年33卷第5期 页码：499-503
- 作者机构：
延边大学理学院 物理系, 吉林 延吉 133002
- 作者简介：
- 基金信息：国家自然科学基金(11164031)资助项目()
DOI：10.3788/fgxb20123305.0499
中图分类号： O482.31纸质出版日期：2012-5-10，
网络出版日期：2012-5-10，
收稿日期：2012-2-13，
修回日期：2012-3-27，
扫 描 看 全 文
俞淳善, 田莲花. Ca<sub>4</sub>LaNbMo<sub>4</sub>O<sub>20</sub>:Pr<sup>3+</sup>荧光粉的发光性质[J]. 发光学报, 2012,(5): 499-503
YU Chun-shan, TIAN Lian-hua. Photoluminescence Characteristics of Ca<sub>4</sub>LaNbMo<sub>4</sub>O<sub>20</sub>∶Pr<sup>3+</sup>[J]. Chinese Journal of Luminescence, 2012,(5): 499-503
俞淳善, 田莲花. Ca<sub>4</sub>LaNbMo<sub>4</sub>O<sub>20</sub>:Pr<sup>3+</sup>荧光粉的发光性质[J]. 发光学报, 2012,(5): 499-503 DOI： 10.3788/fgxb20123305.0499.
YU Chun-shan, TIAN Lian-hua. Photoluminescence Characteristics of Ca<sub>4</sub>LaNbMo<sub>4</sub>O<sub>20</sub>∶Pr<sup>3+</sup>[J]. Chinese Journal of Luminescence, 2012,(5): 499-503 DOI： 10.3788/fgxb20123305.0499.
摘要
采用高温固相法成功制备出荧光粉Ca
4
LaNbMo
4
O
20
:Pr
3+
通过X射线衍射分析了样品的结构
其结构与CaMoO
4
结构相似。在Ca
4
LaNbMo
4
O
20
:Pr
3+
的激发光谱中出现了NbO
4
3-
和MoO
4
2-
的电荷迁移(CTS)吸收和Pr
3+
离子的4f4f5d激发跃迁
以及Pr
3+
-金属离子的价间电荷迁移(IVCT)吸收;另外在420~520 nm处
还观测到属于Pr
3+
离子的典型f-f激发跃迁。发射光谱中
在452 nm激发下
主要出现绿光和红光两种发射
其峰值位于490 nm和607 nm处
分别是Pr
3+
的
3
P
0
3
H
4
和
1
D
2
3
H
4
的跃迁作用;在紫外287 nm激发下出现NbO
4
3-
和MoO
4
2-
发射和Pr
3+
离子的4f5d4f跃迁宽带
以及Pr
3+
离子的4f4f发射峰。
Abstract
The phosphor Ca
4
LaNbMo
4
O
20
∶Pr
3+
has been prepared by the solid-state method. The photoluminescence (PL) properties have been investigated. The XRD patterns are similar to that of CaMoO
4
structure. The excitation spectrum of Ca
4
LaNbMo
4
O
20
exhibits a broad absorption band at 257 nm
which is attributed to the charge transfer states (CTS) of MoO
4
2-
and NbO
4
3-
complexes. The excitation spectrum of Ca
4
LaNbMo
4
O
20
∶Pr
3+
shows an absorption band centered at 287 nm
which is attributed to the 4f4f5d transition of Pr
3+
. The excitation spectrum of Ca
4
LaNbMo
4
O
20
∶Pr
3+
also shows two weak shoulder absorption bands at about 266 and 320 nm
which are originated the charge transfer states (CTS) of MoO
4
2-
and NbO
4
3-
complexes and the intervalence charge transfer (IVCT) transition of Pr-metal
respectively. The 4f-4f transitions of Pr
3+
are also observed in the region of 420~520 nm. As a result
it can efficiently convert the blue pump light of the Ⅲ-N semiconductor LED into visible wavelength bands. The photoluminescence spectrum of Ca
4
LaNbMo
4
O
20
∶Pr
3+
excited with 452 nm shows the green and red emissions originated of the
3
P
0
3
H
4
(490 nm) and
1
D
2
3
H
4
(607 nm) transitions of Pr
3+
ions
respectively. At excited with an ultraviolet wavelength of 287 nm
the emission spectrum of Ca
4
LaNbMo
4
O
20
∶Pr
3+
exhibits the broad emission band centered at 490 nm and several sharp emission peaks at 490
536
561
607 nm. The broad band is belonging to the overlap of the host emission and the 4f5d4f transition of Pr
3+
ions. The sharp emission peaks are attributed to the
3
P
0
3
H
4
3
P
1
3
H
5
3
P
0
3
H
5
and
1
D
2
3
H
4
transitions of Pr
3+
ions. It is speculated that the energy transfer occurs from the MoO
4
2-
and NbO
4
3-
complexes to Pr
3+
ions. However
the efficiency of energy transfer is very weak.
关键词
Ca4LaNbMo4O20∶Pr3+光致发光能量传递
Keywords
Ca4LaNbMo4O20∶Pr3+photoluminescenceenergy transfer
references
Lobo N, Rodriguez H, Knauer A, et al. Enhancement of light extraction in ultraviolet light-emitting diodes using nanopixel contact design with Al reflector [J]. Appl. Phys. Lett., 2010, 96(8):081109-1-3.[2] Yamamoto H. White LED phosphors: The next step [J]. SPIE, 2010, 7598:75908-1-10.[3] Liu X R. Phosphors for white LED solid state lighting [J]. Chin. J. Lumin.(发光学报), 2007, 28(3):291-301 (in Chinese).[4] Su Qiang, Wu Hao, Pan Yuexiao, et al. Rare earth luminescent materials for white LED solid state lighting [J]. J. Chin. Rare Earth Soc.(中国稀土学报), 2005, 23(5):513-517 (in Chinese).[5] Shionoya S, Yen W M. Phosphor Handbook [M]. Boca Raton: CRC Press, 1999:187.[6] Tian L H, Mho S I, Jin Z. Luminescence properties of red-emitting praseodymium-activated BaTi4O9 phosphor [J]. J. Lumin., 2009, 129(8):797-800.[7] Diallo P T, Boutinaud P, Mahiou R, et al. Red luminescence in Pr3+-doped calcium titanates [J]. J. Phys. Status Solidi (a), 1997, 160(1):255-263.[8] Hoefdraad H E, Blasse G. Green emitting praseodymium in calcium zirconate [J]. J. Phys. Status Solidi (a), 1975, 29(1):K95-K97.[9] Zhou Wen, Yu Liping, Lian Shixun, et al. Influence of pH value in precursor solution on the component, morphology and photoluminescence of Ca2Zn4Ti16O38:Pr3+,Na+ phosphor [J]. Chin. J. Lumin.(发光学报), 2010, 31(5):646-650 (in Chinese).[10] Srivastava A M, Beers W W. Luminescence of Pr3+ in SrAl12O19: Observation of two photon luminescence in oxide lattice [J]. J. Lumin., 1997, 71(4):285-290.[11] Okumura M, Tamatani M, Albessard A K, et al. Luminescence of properties of rare earth ion-doped monoclinic yttrium sesquioxide [J]. Jpn. J. Appl. Phys., 1997, 36(10):6411-6415.[12] Nair K R, Rao P P, Sameera S, et al. New powellite type oxides in Ca-R-Nb-Mo-O system (R=Y, La, Nd, Sm or Bi) Their synthesis, structure and dielectric properties [J]. Mater. Lett., 2008, 62(17-18):2868-2871.[13] Cavalli E, Angiuli F, Boutinaud P, et al. Optical spectroscopy and excited state dynamics of CaMoO4:Pr3+ [J]. J. Solid State Chem., 2012, 185(1):136-142.[14] Boutinaud P, Dubois E, Vink A P, et al. UV-to-red relaxation pathways in CaTiO3:Pr3+ [J]. J. Lumin., 2005, 111(1-2):69-80.[15] Pinel E, Boutinaud P, Mahiou R. What makes the luminescence of Pr3+ different in CaTiO3 and CaZrO3 [J]. J. Alloys Compd., 2004, 380(1-2):225-229.[16] Guo Yu, Liu Yuxue, Yan Xiaolei, et al. Two-wavelength optical storage properties of 12CaO·7Al2O3:Pr3+ phosphor [J]. Chin. J. Lumin.(发光学报), 2011, 32(4):313-319 (in Chinese).[17] Grobelna B, Bojarski P, Kukliński B, et al. Optical properties and luminescence kinetics of Ln1.9Pr0.1(WO4)3 (where Ln=Gd, La) immobilized in silica xerogel [J]. Opt. Mater., 2011, 7(1):11-16.[18] Shiran N, Neicheva S, Gektin A, et al. Luminescence of Pr-doped LiCaAlF6 and LiSrAlF6 crystals [J]. J. Lumin., 2009, 129(12):1542-1545.[19] Kück S, Sokólska I, Henke M, et al. Emission and excitation characteristics and internal quantum efficiencies of vacuum-ultraviolet excited Pr3+-doped fluoride compounds [J]. Phys. Rev. B, 2005, 71(16):165112-1-15.[20] van Pieterson L, Dullens R P A, Peijel P S, et al. Site-selective laser spectroscopy of 4fn- 4fn-15d transition in CaF2:Pr3+ with F-,D-,H-,Li+, or Na+ charge compensation [J]. J. Chem. Phys., 2001, 115(20):9393-9400.[21] Zhu F, Xiao Z S, Zhang F, et al. Donor doping process and white light generation in CaMoO4 powders with multivalence Pr codoping [J]. J. Lumin., 2011, 131(1):22-24.[22] Pu Yong, Zhu Dachuang, Han Tao. Preparation and characterization of Ca1-x-yWO4:xPr3+,yLi+ deep red phosphors for white LEDs excited by blue light [J]. Chin. J. Lumin.(发光学报), 2012, 33(1):12-17 (in Chinese).
0
浏览量
30
下载量
1
CSCD
- 网络PDF下载
- Meta-XML下载
- BibTeX下载
- Endnote下载
- RefMan 下载
- NoteExpress下载
- NoteFirst下载
关联资源
相关文章
相关作者
相关机构
- 地址：长春市经济技术开发区东南湖大路3888号 邮编：130033
- 联系电话：0431-86176862 Email：fgxbt@126.com
- 本系统由Light学术出版中心、北京北大方正电子有限公司共建 吉ICP备11002662号-17
京公网安备11010802024621 - 本系统建议在Chrome、 IE9+ 以上版本浏览器阅读本站内容，360浏览器请切换至极速模式
- Cookies帮助我们提供服务并提供个性化体验。使用本网站，即表示您同意我们使用Cookies
