Effects of Er3+ concentration on thermal sensitivity in optical temperature fluorotellurite glass sensors

被引:140
作者
Leon-Luis, Sergio F. [1 ,2 ]
Rodriguez-Mendoza, Ulises R. [1 ,2 ]
Martin, Inocencio R. [1 ,2 ]
Lalla, Emmanuel [3 ]
Lavin, Victor [1 ,2 ]
机构
[1] Univ La Laguna, Dept Fis Fundamental & Expt, San Cristobal De La Lagu 38200, Santa Cruz De T, Spain
[2] Univ La Laguna, MALTA, Consolider Team, San Cristobal De La Lagu 38200, Santa Cruz De T, Spain
[3] Unidad Asociada UVA CSIC, Valladolid 47152, Spain
关键词
Optical temperature sensor; Er3+; Fluorotellurite glass; Absorption; Luminescence; Energy transfer; Thermal sensitivity; GREEN UP-CONVERSION; LUMINESCENCE; INTENSITIES; EMISSION;
D O I
10.1016/j.snb.2012.09.067
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The effects of Er3+ concentration on temperature-dependent luminescence in fluorotellurite glass were studied in the 100-573 K range for its application as an optical temperature sensor. The temperature-induced changes in the Er3+ green emissions associated to the transitions from the H-2(11/2) and S-4(3/2) thermalized levels to the I-4(15/2) ground state were calibrated by doping the fluorotellurite glasses with three concentrations (0.01, 0.1 and 2.5 mol% of Er3+ ions) and using commercial cw 488 nm laser excitation. The intensities, quantum efficiencies, line profiles and fluorescence intensity ratio of these thermalized green emitting levels are highly dependent on the optically active Er3+ concentration and the position of the glass excited by the laser beam due to the existence of radiative and non-radiative energy transfer processes between Er3+ ions. The maximum value for thermal sensitivity were obtained for the fluorotellurite glass doped with the lowest concentration of Er3+ ions, 79 x 10(-4) K-1 at 541 K, one of the highest values found in the literature, and quite close to the theoretical thermal sensitivity calculated using the Judd-Ofelt theory. This study concludes that the calibration of optical temperature sensors based on Er3+ ions is strongly affected by radiative energy transfer processes, therefore a relatively low concentration of Er3+ ions should be used to avoid them. (C) 2012 Elsevier B. V. All rights reserved.
引用
收藏
页码:1167 / 1175
页数:9
相关论文
共 28 条
[1]   OPTICAL-FIBER TEMPERATURE SENSOR BASED ON UPCONVERSION-EXCITED FLUORESCENCE [J].
BERTHOU, H ;
JORGENSEN, CK .
OPTICS LETTERS, 1990, 15 (19) :1100-1102
[2]  
Blasse G., 1994, Luminescent Materials, P91, DOI DOI 10.1007/978-3-642-79017-1_5
[3]   Thermometry at the nanoscale [J].
Brites, Carlos D. S. ;
Lima, Patricia P. ;
Silva, Nuno J. O. ;
Millan, Angel ;
Amaral, Vitor S. ;
Palacio, Fernando ;
Carlos, Luis D. .
NANOSCALE, 2012, 4 (16) :4799-4829
[4]   Point temperature sensor based on green decay in an Er:ZBLALiP microsphere [J].
Cai, Z. P. ;
Xiao, L. ;
Xu, H. Y. ;
Mortier, M. .
JOURNAL OF LUMINESCENCE, 2009, 129 (12) :1994-1996
[5]  
Carnall W. T., 1978, 782095 ANL
[6]  
Di Bartolo B., 1984, Energy Transfer Processes in Condensed Matter. Proceedings of a NATO Advanced Study Institute, P103
[7]   Optical high temperature sensor based on green up-conversion emissions in Er3+ doped Al2O3 [J].
Dong, B. ;
Yang, T. ;
Lei, M. K. .
SENSORS AND ACTUATORS B-CHEMICAL, 2007, 123 (02) :667-670
[8]   Upconversion color tunability and white light generation in Tm3+/Ho3+/Yb3+ doped aluminum germanate glasses [J].
Gong, Hua ;
Yang, Dianlai ;
Zhao, Xin ;
Pun, Edwin Yun Bun ;
Lin, Hai .
OPTICAL MATERIALS, 2010, 32 (04) :554-559
[9]  
Gorller-Walrand C, 1998, HANDB PHYSI, V25, P101, DOI 10.1016/S0168-1273(98)25006-9
[10]   Optical amplification properties of Dy3+-doped Gd2SiO4, Lu2SiO5 and YAl3(BO3)4 single crystals [J].
Haro-Gonzalez, P. ;
Martin, L. L. ;
Martin, I. R. ;
Berkowski, M. ;
Ryba-Romanowski, W. .
APPLIED PHYSICS B-LASERS AND OPTICS, 2011, 103 (03) :597-602