The effect of Ce3+ concentration and heat treatment on the luminescence efficiency of YAG phosphor; Journal of Physics and Chemistry of Solids; Vol. 116, iss. 6
| Parent link: | Journal of Physics and Chemistry of Solids Vol. 116, iss. 6.— 2018.— [P. 1-6] |
|---|---|
| Muut tekijät: | , , , |
| Yhteenveto: | Title screen Y3Al5O12 (YAG) phosphor powders doped with Ce3+ at different concentrations (YAG:xCe, x = 0.02, 0.04, 0.06, 0.08, 0.1 wt%) were synthesized by the solid-state reaction method with the addition of BaF2 flux. The effects of cerium concentration and heat treatment on the luminescence efficiency of the YAG:Ce3+ phosphor were investigated. The introduction of Ce3+ ions leads to an increase in luminescent intensity of the YAG phosphor at 560 nm. The band at 530 nm is attributed to Ce3+ ions (optical transitions from the 4f-5d excited state). We assumed that such an increase in the luminescent intensity is due to the ability of Ce3+to act as a luminescence sensitizer of intrinsic defects in YAG phosphor. The analysis of luminescence decay kinetics in the investigated samples has shown that the decay time in all samples does not differ significantly and equals τ ≈ 60 ± 3 ns. We showed experimentally that increasing the luminescence intensity has an effect observed with relatively low temperature treatment (T = 400 K). The nature of possible luminescence centers and the effect of low heat treatment on the luminescence properties of the powders are discussed. Режим доступа: по договору с организацией-держателем ресурса |
| Kieli: | englanti |
| Julkaistu: |
2018
|
| Aiheet: | |
| Linkit: | https://doi.org/10.1016/j.jpcs.2018.01.007 |
| Aineistotyyppi: | Elektroninen Kirjan osa |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658750 |
MARC
| LEADER | 00000naa0a2200000 4500 | ||
|---|---|---|---|
| 001 | 658750 | ||
| 005 | 20251117145639.0 | ||
| 035 | |a (RuTPU)RU\TPU\network\26766 | ||
| 090 | |a 658750 | ||
| 100 | |a 20181115d2018 k||y0rusy50 ba | ||
| 101 | 0 | |a eng | |
| 102 | |a NL | ||
| 135 | |a drcn ---uucaa | ||
| 181 | 0 | |a i | |
| 182 | 0 | |a b | |
| 200 | 1 | |a The effect of Ce3+ concentration and heat treatment on the luminescence efficiency of YAG phosphor |f D. T. Valiev [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 330 | |a Y3Al5O12 (YAG) phosphor powders doped with Ce3+ at different concentrations (YAG:xCe, x = 0.02, 0.04, 0.06, 0.08, 0.1 wt%) were synthesized by the solid-state reaction method with the addition of BaF2 flux. The effects of cerium concentration and heat treatment on the luminescence efficiency of the YAG:Ce3+ phosphor were investigated. The introduction of Ce3+ ions leads to an increase in luminescent intensity of the YAG phosphor at 560 nm. The band at 530 nm is attributed to Ce3+ ions (optical transitions from the 4f-5d excited state). We assumed that such an increase in the luminescent intensity is due to the ability of Ce3+to act as a luminescence sensitizer of intrinsic defects in YAG phosphor. The analysis of luminescence decay kinetics in the investigated samples has shown that the decay time in all samples does not differ significantly and equals τ ≈ 60 ± 3 ns. We showed experimentally that increasing the luminescence intensity has an effect observed with relatively low temperature treatment (T = 400 K). The nature of possible luminescence centers and the effect of low heat treatment on the luminescence properties of the powders are discussed. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | 1 | |t Journal of Physics and Chemistry of Solids | |
| 463 | 1 | |t Vol. 116, iss. 6 |v [P. 1-6] |d 2018 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a YAG:Ce phosphors | |
| 610 | 1 | |a energy efficiency | |
| 610 | 1 | |a luminescent properties | |
| 610 | 1 | |a heat treatment | |
| 610 | 1 | |a defects | |
| 610 | 1 | |a энергоэффективность | |
| 610 | 1 | |a люминесцентные свойства | |
| 610 | 1 | |a термическая обработка | |
| 610 | 1 | |a дефекты | |
| 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 | 0 | |a Khan (Han) Tao |c chemist |c Senior Researcher of Tomsk Polytechnic University, Ph.D |f 1990- |3 (RuTPU)RU\TPU\pers\46545 | |
| 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 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 | |
| 801 | 2 | |a RU |b 63413507 |c 20200826 |g RCR | |
| 856 | 4 | |u https://doi.org/10.1016/j.jpcs.2018.01.007 | |
| 942 | |c CF | ||