Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders

2012
Authors
Lojpur, Vesna
Nikolić, Marko G.

Medić, Mina
Mančić, Lidija

Milošević, Olivera

Dramićanin, Miroslav

Conference object (Published version)
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In recent years trivalent rare earth doped materials have received significant attention for optical temperature sensors. In these materials ratio of fluorescence emissions from different energy levels exhibit strong temperature dependence. Synthesized Y2O3:Yb,Tm and Y2O3:Yb,Ho powders were obtained via spray pyrolysis at 900 °C using 0.1 M nitrate precursor. Using laser excitation at 978 nm we investigated upconversion emission of these powders and recorded characteristic transitions: 1D2→3F4, 1G4→3H6, 1G4→3F4, 3F2,3→3H6, 1D2→3F3, 1G4→3H6, 3H4→3H6 for Tm3+ and 5F4, 5S2→5I8, 5F5→5I8, 5F4, 5S2→5I7 for Ho3+. Further we analyzed temperature dependence of fluorescence intensity ratios of different Stark components in the range from 10K to 300K. Several of these ratios exhibit significant temperature sensitivity, with the largest value of 0.08 K-1.
Keywords:
optical temperature sensors / rare earths / doping / fluorescenceSource:
2nd International Conference on Optical, Electronic and Electrical Materials, 5-7 August 2012, Shanghai, China, 2012Funding / projects:
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Lojpur, Vesna AU - Nikolić, Marko G. AU - Medić, Mina AU - Mančić, Lidija AU - Milošević, Olivera AU - Dramićanin, Miroslav PY - 2012 UR - https://dais.sanu.ac.rs/123456789/509 AB - In recent years trivalent rare earth doped materials have received significant attention for optical temperature sensors. In these materials ratio of fluorescence emissions from different energy levels exhibit strong temperature dependence. Synthesized Y2O3:Yb,Tm and Y2O3:Yb,Ho powders were obtained via spray pyrolysis at 900 °C using 0.1 M nitrate precursor. Using laser excitation at 978 nm we investigated upconversion emission of these powders and recorded characteristic transitions: 1D2→3F4, 1G4→3H6, 1G4→3F4, 3F2,3→3H6, 1D2→3F3, 1G4→3H6, 3H4→3H6 for Tm3+ and 5F4, 5S2→5I8, 5F5→5I8, 5F4, 5S2→5I7 for Ho3+. Further we analyzed temperature dependence of fluorescence intensity ratios of different Stark components in the range from 10K to 300K. Several of these ratios exhibit significant temperature sensitivity, with the largest value of 0.08 K-1. C3 - 2nd International Conference on Optical, Electronic and Electrical Materials, 5-7 August 2012, Shanghai, China T1 - Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders UR - https://hdl.handle.net/21.15107/rcub_dais_509 ER -
@conference{ author = "Lojpur, Vesna and Nikolić, Marko G. and Medić, Mina and Mančić, Lidija and Milošević, Olivera and Dramićanin, Miroslav", year = "2012", abstract = "In recent years trivalent rare earth doped materials have received significant attention for optical temperature sensors. In these materials ratio of fluorescence emissions from different energy levels exhibit strong temperature dependence. Synthesized Y2O3:Yb,Tm and Y2O3:Yb,Ho powders were obtained via spray pyrolysis at 900 °C using 0.1 M nitrate precursor. Using laser excitation at 978 nm we investigated upconversion emission of these powders and recorded characteristic transitions: 1D2→3F4, 1G4→3H6, 1G4→3F4, 3F2,3→3H6, 1D2→3F3, 1G4→3H6, 3H4→3H6 for Tm3+ and 5F4, 5S2→5I8, 5F5→5I8, 5F4, 5S2→5I7 for Ho3+. Further we analyzed temperature dependence of fluorescence intensity ratios of different Stark components in the range from 10K to 300K. Several of these ratios exhibit significant temperature sensitivity, with the largest value of 0.08 K-1.", journal = "2nd International Conference on Optical, Electronic and Electrical Materials, 5-7 August 2012, Shanghai, China", title = "Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders", url = "https://hdl.handle.net/21.15107/rcub_dais_509" }
Lojpur, V., Nikolić, M. G., Medić, M., Mančić, L., Milošević, O.,& Dramićanin, M.. (2012). Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders. in 2nd International Conference on Optical, Electronic and Electrical Materials, 5-7 August 2012, Shanghai, China. https://hdl.handle.net/21.15107/rcub_dais_509
Lojpur V, Nikolić MG, Medić M, Mančić L, Milošević O, Dramićanin M. Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders. in 2nd International Conference on Optical, Electronic and Electrical Materials, 5-7 August 2012, Shanghai, China. 2012;. https://hdl.handle.net/21.15107/rcub_dais_509 .
Lojpur, Vesna, Nikolić, Marko G., Medić, Mina, Mančić, Lidija, Milošević, Olivera, Dramićanin, Miroslav, "Low temperature sensitivity of upconversion emission in Y2O3:Yb,Tm and Y2O3:Yb,Ho powders" in 2nd International Conference on Optical, Electronic and Electrical Materials, 5-7 August 2012, Shanghai, China (2012), https://hdl.handle.net/21.15107/rcub_dais_509 .