Synthesis and optical properties of Tb3+ or Dy3+-doped MgAl2O4 transparent ceramics; Optical Materials; Vol. 91
| Parent link: | Optical Materials Vol. 91.— 2019.— [P. 396-400] |
|---|---|
| Altri autori: | , , , , , |
| Riassunto: | Title screen MgAl2O4 ceramics doped with rare earth ions (Tb3+ and Dy3+ ions) were fabricated by SPS technique. Optical properties and pulse cathodoluminescence (PCL) spectra were studied. The redshift effect of the absorption boundary for rare earth (RE) ions doped ceramics was shown. It was shown that cathodoluminescence spectra in nanosecond time range can be decomposed into several emission bands at 2.72, 3.01, 3.37, 3.63 eV caused by F-type centers. It has been demonstrated that the introduction of terbium and dysprosium ions practically does not change the intensity ratio of the bands at 2.72, 3.01, 3.37 eV, but leads to an increase in the band at 3.63 eV in nanosecond time range. There are emission bands related to intrinsic host defects, RE ions dopants (Dy3+, Tb3+), and trace elements (Cr3+ ions) in PCL spectra measured in millisecond time range. The dependences of kinetic characteristics of spinel ceramics were studied. In nanosecond time range, decay kinetics of the MAS ceramics is described by the sum of two exponentials with luminescence decay times are 30 ± 5 ns and 0.8 ± 0.1 μs In the millisecond time interval, the luminescence decay time depends on the dopant ions. Режим доступа: по договору с организацией-держателем ресурса |
| Lingua: | inglese |
| Pubblicazione: |
2019
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| Soggetti: | |
| Accesso online: | https://doi.org/10.1016/j.optmat.2019.03.049 |
| Natura: | MixedMaterials Elettronico Capitolo di libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661425 |
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| 200 | 1 | |a Synthesis and optical properties of Tb3+ or Dy3+-doped MgAl2O4 transparent ceramics |f D. T. Valiev [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 45 tit.] | ||
| 330 | |a MgAl2O4 ceramics doped with rare earth ions (Tb3+ and Dy3+ ions) were fabricated by SPS technique. Optical properties and pulse cathodoluminescence (PCL) spectra were studied. The redshift effect of the absorption boundary for rare earth (RE) ions doped ceramics was shown. It was shown that cathodoluminescence spectra in nanosecond time range can be decomposed into several emission bands at 2.72, 3.01, 3.37, 3.63 eV caused by F-type centers. It has been demonstrated that the introduction of terbium and dysprosium ions practically does not change the intensity ratio of the bands at 2.72, 3.01, 3.37 eV, but leads to an increase in the band at 3.63 eV in nanosecond time range. There are emission bands related to intrinsic host defects, RE ions dopants (Dy3+, Tb3+), and trace elements (Cr3+ ions) in PCL spectra measured in millisecond time range. The dependences of kinetic characteristics of spinel ceramics were studied. In nanosecond time range, decay kinetics of the MAS ceramics is described by the sum of two exponentials with luminescence decay times are 30 ± 5 ns and 0.8 ± 0.1 μs In the millisecond time interval, the luminescence decay time depends on the dopant ions. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Optical Materials | ||
| 463 | |t Vol. 91 |v [P. 396-400] |d 2019 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a MgAl2O4 (MAS) ceramics | |
| 610 | 1 | |a rare earth (RE) ions | |
| 610 | 1 | |a spark plasma sintering (SPS) technique | |
| 610 | 1 | |a optical properties | |
| 610 | 1 | |a pulse cathodoluminescence (PLC) | |
| 610 | 1 | |a decay kinetics | |
| 610 | 1 | |a керамика | |
| 610 | 1 | |a редкоземельные ионы | |
| 610 | 1 | |a спарк-плазменное спекание | |
| 610 | 1 | |a оптические свойства | |
| 610 | 1 | |a импульсная катодолюминесценция | |
| 701 | 1 | |a Valiev |b D. T. |c specialist in the field of material science |c Associate Professor of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1987- |g Damir Talgatovich |3 (RuTPU)RU\TPU\pers\33772 |9 17370 | |
| 701 | 1 | |a Stepanov |b S. A. |c specialist in the field of lightning engineering |c Engineer of Tomsk Polytechnic University |f 1986- |g Sergey Aleksandrovich |3 (RuTPU)RU\TPU\pers\33771 |9 17369 | |
| 701 | 1 | |a Khasanov |b O. L. |c Russian physicist, materials scientist, Doctor of Engineering |c professor, Director of TPU Nano-Centre and Head of the Department "Nanomaterials and Nanotechnologies" of TPU |f 1958- |g Oleg Leonidovich |3 (RuTPU)RU\TPU\pers\27102 |9 12652 | |
| 701 | 1 | |a Dvilis |b E. S. |c Chemical Engineer |c senior researcher of Tomsk Polytechnic University, Professor, doctor of physical and mathematical Sciences |f 1969- |g Edgar Sergeevich |3 (RuTPU)RU\TPU\pers\34597 |9 17959 | |
| 701 | 1 | |a Polisadova |b E. F. |c specialist in the field of lighting engineering |c professor of Tomsk Polytechnic University, doctor of physical and mathematical sciences |f 1972- |g Elena Fyodorovna |3 (RuTPU)RU\TPU\pers\33900 |9 17473 | |
| 701 | 1 | |a Paygin |b V. D. |c specialist in the field of material science |c engineer of Tomsk Polytechnic University |f 1992- |g Vladimir Denisovich |3 (RuTPU)RU\TPU\pers\38492 |9 20806 | |
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