Time-resolved cathodoluminescence spectroscopy of YAG and YAG:Ce3+ phosphors; Optical Materials; Vol. 96
| Parent link: | Optical Materials Vol. 96.— 2019.— [109289, 6 p.] |
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| مؤلفون آخرون: | , , , , , , , |
| الملخص: | Title screen The phosphor powders, both undoped and Ce3+ doped with different concentration Y3Al5O12 (YAG), were synthesized by the solid-state reaction method with addition of BaF2 flux. SEM and XRD characterization of the samples were performed. The spectral and luminescence decay kinetic characteristics under the electron beam irradiation with nano- and picoseconds pulse duration and the electron energies of 250 keV and 55 keV were studied, respectively. Two bands in the cathodoluminescence spectrum of YAG:Ce3+ phosphors were observed with maxima at 2.19 ± 0.05 and 2.4 eV. The intensity ratio of these two bands depends on the electron energy and the duration of the excitation pulse. Instead, only one band at 2.12 ± 0.05 eV in the luminescence spectrum of undoped YAG phosphor. It is shown that cerium ions doping increases in the number of various hole centers. Режим доступа: по договору с организацией-держателем ресурса |
| اللغة: | الإنجليزية |
| منشور في: |
2019
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| الموضوعات: | |
| الوصول للمادة أونلاين: | https://doi.org/10.1016/j.optmat.2019.109289 |
| التنسيق: | الكتروني فصل الكتاب |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664145 |
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| 200 | 1 | |a Time-resolved cathodoluminescence spectroscopy of YAG and YAG:Ce3+ phosphors |f E. F. Polisadova, D. T. Valiev, V. Vaganov [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 70 tit.] | ||
| 330 | |a The phosphor powders, both undoped and Ce3+ doped with different concentration Y3Al5O12 (YAG), were synthesized by the solid-state reaction method with addition of BaF2 flux. SEM and XRD characterization of the samples were performed. The spectral and luminescence decay kinetic characteristics under the electron beam irradiation with nano- and picoseconds pulse duration and the electron energies of 250 keV and 55 keV were studied, respectively. Two bands in the cathodoluminescence spectrum of YAG:Ce3+ phosphors were observed with maxima at 2.19 ± 0.05 and 2.4 eV. The intensity ratio of these two bands depends on the electron energy and the duration of the excitation pulse. Instead, only one band at 2.12 ± 0.05 eV in the luminescence spectrum of undoped YAG phosphor. It is shown that cerium ions doping increases in the number of various hole centers. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Optical Materials | ||
| 463 | |t Vol. 96 |v [109289, 6 p.] |d 2019 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a YAG:Ce phosphors | |
| 610 | 1 | |a cathodoluminescence | |
| 610 | 1 | |a decay kinetics | |
| 610 | 1 | |a radiation defects | |
| 610 | 1 | |a time-resolved spectroscopy | |
| 610 | 1 | |a люминофоры | |
| 610 | 1 | |a катодолюминесценция | |
| 610 | 1 | |a радиационные дефекты | |
| 610 | 1 | |a спектроскопия | |
| 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 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 Vaganov |b V. A. |c Specialist in the field of lightning engineering |c research engineer of Tomsk Polytechnic University |f 1991- |g Vitalii Andreevich |3 (RuTPU)RU\TPU\pers\37525 |9 20394 | |
| 701 | 1 | |a Oleshko |b V. I. |c specialist in the field of lightning engineering |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences |f 1948- |g Vladimir Ivanovich |3 (RuTPU)RU\TPU\pers\33783 |9 17381 | |
| 701 | 0 | |a Han Tao | |
| 701 | 0 | |a Zhang Chi | |
| 701 | 1 | |a Burachenko |b A. G. |g Aleksandr Gennadjevich | |
| 701 | 1 | |a Popov |b A. I. |g Aleksandr Igorevich | |
| 801 | 0 | |a RU |b 63413507 |c 20210330 |g RCR | |
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| 856 | 4 | |u https://doi.org/10.1016/j.optmat.2019.109289 | |
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