| 000 | 03047nab a2200349 c 4500 | ||
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| 001 | vtls000569141 | ||
| 003 | RU-ToGU | ||
| 005 | 20210907031650.0 | ||
| 007 | cr | | ||
| 008 | 170403|2015 sz s a eng dd | ||
| 024 | 7 |
_a10.4028/www.scientific.net/KEM.670.107 _2doi |
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| 035 | _ato000569141 | ||
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_aRU-ToGU _brus _cRU-ToGU |
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| 245 | 1 | 0 |
_aRed and green phosphors glow on the basis of oxide glass-ceramics doped with Eu3+ and Tb3+ _cS. Y. Tsyretarova, N. M. Kozhevnikova, N. S. Eremina, G. M. Mokrousov |
| 504 | _aБиблиогр.: 12 назв. | ||
| 520 | 3 | _aGlass-ceramics phosphors were obtained by the introduction of the crystalline phase NaMg3Sc (MoO4)5:Eu3+,Tb3+ in the glass composition 8SiO2-20B2O3-5Lu2O3-31Bi2O3-36ZnO. The properties were characterized by X-ray diffraction (XRD), photoluminescence (PL) and photoluminescent excitation spectra (PLE). The XRD patterns were indicated NaMg3Sc (MoO4)5:Eu3+,Tb3+ crystallize well with the novel structure type and were assigned to the triclinic phase (space group PĪ, Z = 6). Glass-ceramic phosphors are well-known and promising as solid electrolytes, laser, luminescent and other inorganic materials. Luminescent properties of the phosphors are performed at room temperature. The excitation spectra of Eu-doped phosphor present strong absorption at 300 nm and the sharp peaks in the 350-500 nm range. Under the 394 nm excitation, intense red emission peak at 616 nm corresponding to 5D0→7F2 transition of Eu3+ is observed in the emission spectrum. The luminescence property indicates that the local symmetry of Eu3+ ion has no inversion center. The excitation spectra of Tb-doped phosphor by monitoring wavelength at 546 nm shows the intense broad band from 260 to 420 nm and the line at 234 nm, which is mainly attributed to charge-transfer band transition in MoO42- group, indicating the existence of energy transfer from MoO42- to Tb3+ in the Tb3+:glass-ceramic. The measured emission spectrum of Tb-doped phosphor has intense green emission at 546 nm corresponding to 5D4→7F5 transition of Tb3+, with λex=368 nm. The as-prepared phosphors may find potential applications in the field such as color displays, light-emitting diodes (LEDs) and optoelectronic devices. | |
| 653 | _aионы европия | ||
| 653 | _aспектры возбуждения | ||
| 653 | _aоксидная стеклокерамика | ||
| 653 | _aионы тербия | ||
| 653 | _aфосфор | ||
| 655 | 4 |
_aстатьи в журналах _9681159 |
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| 700 | 1 |
_aTsyretarova, Seseg Yu. _9102291 |
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| 700 | 1 |
_aEremina, Nina S. _9102293 |
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| 700 | 1 |
_aMokrousov, Gennady M. _990128 |
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| 700 | 1 |
_aKozhevnikova, Nina M. _9102292 |
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| 773 | 0 |
_tKey engineering materials _d2015 _gVol. 670. P. 107-112 _x1013-9826 |
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| 852 | 4 | _aRU-ToGU | |
| 856 | 7 | _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000569141 | |
| 908 | _aстатья | ||
| 999 | _c422203 | ||