Thermometry and up-conversion luminescence of Yb3+-Er3+ co-doped Na2Ln2Ti3O10 (Ln = Gd, La) phosphors

被引:46
作者
Zhang, Zhiyu [1 ]
Guo, Chongfeng [1 ]
Suo, Hao [1 ]
Zhao, Xiaoqi [1 ]
Zhang, Niumiao [1 ]
Li, Ting [1 ]
机构
[1] Northwest Univ, Inst Photon & Photon Technol, Natl Key Lab Photoelect Technol Funct Mat Culture, Natl Photoelect Technol Funct Mat & Applicat Sci, Xian 710069, Peoples R China
基金
高等学校博士学科点专项科研基金; 中国国家自然科学基金;
关键词
TEMPERATURE; YB3+; NANOPARTICLES; IONS; NANOTHERMOMETERS; FLUORESCENCE; EXCITATION; DEPENDENCE; EMISSION; BEHAVIOR;
D O I
10.1039/c6cp02746f
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Yb3+/Er3+-ion co-doped Na(2)Ln(2)Ti(3)O(10) (Ln = Gd, La) up-conversion (UC) phosphors were successfully synthesized by a sol-gel method, and their crystal structures were characterized by powder X-ray diffraction. Dazzling yellow-greenish light was emitted under the excitation of 980 nm near-infrared (NIR) light, composing green and red emission bands from the H-2(11/2)/S-4(3/2) -> I-4(15/2) and F-4(9/2) -> I-4(15/2) transitions of Er3+, respectively. The optimal composition and synthesis parameters were determined according to their UC emission intensity. The photon absorption and emission processes were illustrated based on the UC mechanism, in which energy transfer (ET) from Yb3+ to Er3+ plays a pivotal role and has been proved by the variation of green emission lifetime in Er3+ singly and Yb3+/Er3+ co-doped Na(2)Ln(2)Ti(3)O(10) samples. The temperature-dependent fluorescence intensity ratios (FIR) of the two thermal coupled energy level (TCL) emission from H-2(11/2) -> I-4(15/2) (526 nm) and S-4(3/2) -> I-4(15/2) (549 nm) were calculated in the range of 290-490 K, and their sensitivity values were approximately 0.0058 K-1 for Na2Gd2Ti3O10 at 490 K and 0.0061 K-1 for Na2La2Ti3O10 at 470 K, as potential optical temperature sensor.
引用
收藏
页码:18828 / 18834
页数:7
相关论文
共 33 条
[1]   Blue emissions in Dy3+ doped Y4Al2O9 crystals for temperature sensing [J].
Boruc, Zuzanna ;
Kaczkan, Marcin ;
Fetlinski, Bartosz ;
Turczynski, Sebastian ;
Malinowski, Michal .
OPTICS LETTERS, 2012, 37 (24) :5214-5216
[2]   Ratiometric highly sensitive luminescent nanothermometers working in the room temperature range. Applications to heat propagation in nanofluids [J].
Brites, Carlos D. S. ;
Lima, Patricia P. ;
Silva, Nuno J. O. ;
Millan, Angel ;
Amaral, Vitor S. ;
Palacio, Fernando ;
Carlos, Luis D. .
NANOSCALE, 2013, 5 (16) :7572-7580
[3]   Lanthanide-based luminescent molecular thermometers [J].
Brites, Carlos D. S. ;
Lima, Patricia P. ;
Silva, Nuno J. O. ;
Millan, Angel ;
Amaral, Vitor S. ;
Palacio, Fernando ;
Carlos, Luis D. .
NEW JOURNAL OF CHEMISTRY, 2011, 35 (06) :1177-1183
[4]   Yb3+ sensitized Er3+ doped La2O3 phosphor in temperature sensors and display devices [J].
Dey, Riya ;
Rai, Vineet Kumar .
DALTON TRANSACTIONS, 2014, 43 (01) :111-118
[5]   Size dependence of the upconverted luminescence of NaYF4:Er,Yb microspheres for use in ratiometric thermometry [J].
Dong, Bin ;
Hua, Rui N. ;
Cao, Bao S. ;
Li, Zhi P. ;
He, Yang Y. ;
Zhang, Zhen Y. ;
Wolfbeis, Otto S. .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2014, 16 (37) :20009-20012
[6]   Upconversion emission, cathodoluminescence and temperature sensing behaviors of Yb3+ ions sensitized NaY(WO4)2:Er3+ phosphors [J].
Du, Peng ;
Luo, Laihui ;
Yu, Jae Su .
CERAMICS INTERNATIONAL, 2016, 42 (05) :5635-5641
[7]   Photochromic behavior in the fluorescence spectra of 9-anthrol encapsulated in Si-Al glasses prepared by the sol-gel method [J].
Fujii, T ;
Kodaira, K ;
Kawauchi, O ;
Tanaka, N ;
Yamashita, H ;
Anpo, M .
JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (50) :10631-10637
[8]  
Guo H., 2011, J ALLOY COMPD, V12, P4714
[9]   Structural morphology, upconversion luminescence and optical thermometric sensing behavior of Y2O3:Er3+/Yb3+ nano-crystalline phosphor [J].
Joshi, C. ;
Dwivedi, A. ;
Rai, S. B. .
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2014, 129 :451-456
[10]   IR-spectroscopic characterization of NaLnIIITiO4 and AgLnIIITiO4 oxides related to the K2NiF4 structural type [J].
Lavat, Araceli E. ;
Baran, Enrique J. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2006, 419 (1-2) :334-336