Infrared-to-visible up-conversion emissions and thermometric applications of Er 3+-doped Al 2 O 3
| العنوان: | Infrared-to-visible up-conversion emissions and thermometric applications of Er 3+-doped Al 2 O 3 |
|---|---|
| المؤلفون: | X.S. Xu, Thomas C.-K. Yang, Bin Dong, X. J. Wang, Y.Y. He |
| المصدر: | Applied Physics B. 89:281-284 |
| بيانات النشر: | Springer Science and Business Media LLC, 2007. |
| سنة النشر: | 2007 |
| مصطلحات موضوعية: | Materials science, Physics and Astronomy (miscellaneous), Infrared, business.industry, Doping, General Engineering, Analytical chemistry, General Physics and Astronomy, chemistry.chemical_element, Aluminium isopropoxide, Atmospheric temperature range, Photon upconversion, Erbium, chemistry.chemical_compound, Optics, chemistry, Phase (matter), Aluminium oxide, business |
| الوصف: | Er3+-doped Al2O3 has been prepared by a sol–gel method, using aluminium isopropoxide [Al(OC3H7)3]-derived Al2O3 sols with addition of erbium nitrate [Er(NO3)3·5H2O]. The phase structure of θ-(Al,Er)2O3 phase was obtained for the 0.1 mol. % Er3+-doped Al2O3 at the sintering temperature of 1273 K. The green and red up-conversion emissions centered at about 523, 545 and 660 nm, corresponding respectively to the 2 H 11/2, 4 S 3/2→4 I 15/2 and 4 F 9/2→4 I 15/2 transitions of Er3+, were detected by a 978-nm semiconductor laser diode excitation. The temperature dependence of green up-conversion emissions was studied over a wide temperature range of 295–725 K, and reasonable agreement between the calculated temperatures obtained by the fluorescence intensity ratio theory and the measured temperature was obtained, which proved that Er3+-doped Al2O3 has a good potential for the development of high-temperature sensors. It has some advantages compared to glasses due to its higher thermal and mechanical resistance and allows measurements in a large temperature range. |
| تدمد: | 1432-0649 0946-2171 |
| DOI: | 10.1007/s00340-007-2770-z |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::b336a1dedecc551137df47ba49ca0720 https://doi.org/10.1007/s00340-007-2770-z |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........b336a1dedecc551137df47ba49ca0720 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14320649 09462171 |
|---|---|
| DOI: | 10.1007/s00340-007-2770-z |