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1.
The effect of
ferrimagnetic ordering in insulating component of composites HTSC plus Yttrium Iron Garnet on its transport properties / D. A. Balaev [et al.]> // Solid State Commun. - 2003. -
Vol. 125
,
Is. 5
. - P. 281-285,
DOI
10.1016/S0038-1098(02)00602-6. - Cited References: 34 . - ISSN 0038-1098
РУБ
Physics, Condensed Matter
Рубрики:
SUPERCONDUCTOR
TRANSITION
CURRENTS
Кл.слова (ненормированные):
high-Tc superconductors
--
heterojunctions
--
magnetically ordered materials
--
grain boundaries
--
Heterojunctions
--
High-Tc superconductors
--
Magnetically ordered materials
--
Grain boundaries
--
Grain boundaries
--
Heterojunctions
--
High temperature superconductors
--
Transport properties
--
Yttrium compounds
--
Ferrimagnetic ordering
--
Garnets
Аннотация:
Composites Y3/4Lu1/4Ba2Cu3O7 + Y3Fe5O12 modeling random network superconductor-ferrimagnetic-superconductor have been prepared and their transport properties (temperature dependences of resistivity rho and critical current density j(c), current-voltage characteristics) have been studied. Below the superconducting transition temperature T-m the rho(T) dependences exhibit a kink at some temperature T-m. The crossover of current-voltage characteristics from ohmic-like behavior in range T-m/T-c to non-linear one below T-m is observed. Transport properties of the 'benchmark' composites Y3/4Lu1/4Ba2Cu3O7 + Y3Al5O12 are typical for network superconductor-insulator-superconductor Josephson junction. The behavior observed for Y3/4Lu1/4Ba2Cu3O7 + Y3Fe5O12 composites is attributed to peculiarities of supercurrent carriers tunnelling through ferrimagnetic barriers. (C) 2002 Elsevier Science Ltd. All rights reserved.
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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Kirensky Institute of Physics, Krasnoyarsk 660036, Russian Federation
Krasnoyarsk State University, Krasnoyarsk 660041, Russian Federation
Доп.точки доступа:
Balaev, D. A.; Балаев, Дмитрий Александрович; Shaihutdinov, K. A.; Popkov, S. I.; Попков, Сергей Иванович; Petrov, M. I.; Петров, Михаил Иванович
}
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2.
Magnetic anisotropy quantitative
estimation for the rhombohedral antiferromagnetic crystals containing S-state ions - art. no. 224405 (Retracted Article. see vol 72, art. no. 189901, 2005) / V. V. Men'shikov [et al.]> // Phys. Rev. B. - 2005. -
Vol. 71
,
Is. 22
. - Ст. 224405,
DOI
10.1103/PhysRevB.71.224405. - Cited References: 33 . - ISSN 1098-0121
РУБ
Physics, Condensed Matter
Рубрики:
ELECTRON-PARAMAGNETIC-RES
EXCHANGE-COUPLED PAIRS
RESONANCE MEASUREMENTS
GARNETS
MN-2
Аннотация:
The method to investigate "single-ion" exchange anisotropy (as predicted by the pair model) is treated by exploration of several isostructural diamagnetic crystals containing magnetic impurities. The electron paramagnetic resonance (EPR) spectra were observed for ferric borate isostructural crystals MBO(3): Fe(3+) (M = Ga, In, Lu, Sc). The experimental dependences of the spin-Hamiltonian axial parameters of the second-order D(S) and fourth-order (a-F)(cS) versus total pair spin S are presented. The contributions arising from the distortion of the parent crystal lattice MBO3 under magnetic dilution are estimated. The microscopic derived expressions for the "single-ion" contribution to the anisotropy are also presented. The present experimental data enable estimation of the "single- ion" exchange contribution for FeBO(3), MnCO(3), and alpha-Fe(2)O(3) crystals at T= 0 K. The quantitative estimations for EPR are in satisfactory agreement among themselves and with the experimental data.
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Держатели документа:
LV Kirenskii Inst Phys, SB RAS, Krasnoyarsk 660036, Russia
ИФ СО РАН
L.V. Kirensky Institute of Physics SB RAS, 660036 Krasnoyarsk, Russian Federation
Доп.точки доступа:
Men'shikov, V. V.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Rudenko, V. V.; Руденко, Валерий Васильевич; Sudakov, A. N.; Tugarinov, V. I.; Тугаринов, Василий Иванович; Vorotynov, A. M.; Воротынов, Александр Михайлович
}
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3.
Crossover from S-I-S
to S-F-S junctions in composites Y3/4Lu1/4Ba2Cu3O7+Y-3(Al1-xFex)(5)O-12 / S. I. Popkov [et al.]> // Physica C. - 2007. -
Vol. 460
: 8th International Conference on Materials and Mechanisms of Superconductivity and High Temperature Superconductors (JUL 09-14, 2006, Dresden, GERMANY). - P. 1311-1312,
DOI
10.1016/j.physc.2007.03.348. - Cited References: 4 . - ISSN 0921-4534
РУБ
Physics, Applied
Кл.слова (ненормированные):
S-F-S structures
--
high-T-C superconductors
--
High-TC superconductors
--
S-F-S structures
--
Ferrimagnetic materials
--
Garnets
--
Josephson junction devices
--
Magnetization
--
Transport properties
--
Yttrium alloys
--
Critical concentration
--
Ferrimagnet junctions
--
Magneto-active ions
--
Super current carriers
--
High temperature superconductors
Аннотация:
The transport properties of the two phases composites based on Y3/4Lu1/4Ba2Cu3O7 (YBCO) and Y-3(Al1-xFex)(5)O-12 (X = 0-0... 1.0) have been studied to investigate the effect of magnetic ordering in garnet on superconducting properties of the composites. The composites represent network of Josephson junctions where the non-superconducting ingredient (garnet) acts as barriers separating YBCO grains. It is found that magneto-active ions (Fe) in garnet are responsible for an additional suppression of Josephson coupling in the composites. At some critical concentration of Fe atoms full suppression of super current is observed in a temperature range from T-C of YBCO grains down to the characteristic temperature T,,,. This behavior is attributed to the interaction of super current carriers with spins of Fe atoms located in the barriers. The crossover from S-I-S (S-superconductor, I-insulator) to S-F-S (F-ferrimagnet) junctions is observed in the compdsites Y3/4Lu1/4Ba2Cu3O7 + Y-3(Al1-xFex)(5)O-12 with x increase. (c) 2007 Elsevier B.V. All rights reserved.
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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Intitute of Physics, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Popkov, S. I.; Попков, Сергей Иванович; Balaev, D. A.; Балаев, Дмитрий Александрович; Shaihutdinov, K. A.; Petrov, M. I.; Петров, Михаил Иванович
}
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4.
Zeeman effect and
stark splitting of the electronic states of the rare-earth ion in the paramagnetic terbium
garnets
Tb3Ga5O12 and Tb3Al5O12 / U. V. Valiev [et al.]> // Phys. Solid State. - 2007. -
Vol. 49
,
Is. 1
. - P. 91-98,
DOI
10.1134/S1063783407010167. - Cited References: 14 . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
YTTRIUM-ALUMINUM-GARNET
SELECTIVE POLARIZED SPECTROSCOPY
CRYSTAL-FIELD ANALYSIS
GALLIUM GARNET
Аннотация:
The Zeeman effect in the F-7(6) - D-5(4) absorption band of the Tb3+ ion in the paramagnetic
garnets
Tb3Ga5O12 and Tb3Al5O12 was Studied. The field dependences of the Zeeman splitting of some absorption lines arc found to exhibit unusual behavior: as the magnetic field increases, the hand splitting decreases rather than increases. Symmetry analysis relates these lines to 4f - 4f electron transitions of the doublet-quasi-doublet or quasi-doublet-doublet type, for which the field dependences of the splitting differ radically from the well-known field dependences of the Zeeman splitting for quasi-doublet-quasi-doublet or quasi-doublet-singlet transitions in a longitudinal magnetic field.
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Публикация на русском языке
Эффект Зеемана и особенности штарковского расщепления электронных состояний редкоземельного иона в тербиевых парамагнитных гранатах Tb3Ga5O12 и Tb3Al5O12 [Текст] / У. В. Валиев, J. B. Gruber, D. Sardar [et al.] // Физ. тверд. тела. - Санкт-Петербург : Наука, 2007. - Т. 49 Вып. 1. - С. 87-94
Держатели документа:
Natl Univ Uzbekistan, Tashkent 700174, Uzbekistan
Univ Texas, San Antonio, TX 78249 USA
ARL, Adelphi Lab Ctr, Adelphi, MD 20783 USA
Natl Acad Sci Ukraine, Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН
National University of Uzbekistan, Tashkent 700174, Uzbekistan
University of Texas at San Antonio, San Antonio, TX 78249-0697, United States
ARL, Adelphi Laboratory Center, Adelphi, MD 20783-1197, United States
Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, pr. Lenina 47, Kharkov, 61103, Ukraine
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Доп.точки доступа:
Valiev, U. V.; Gruber, J. B.; Sardar, D. K.; Zandi, B.; Kachur, I. S.; Mukhammadiev, A. K.; Piryatinskaya, V. G.; Sokolov, V. Y.; Edelman, I. S.; Эдельман, Ирина Самсоновна
}
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5.
Origin of color
centers in the flux-grown europium gallium garnet / A. S. Aleksandrovsky [et al.]> // J. Appl. Phys. - 2008. -
Vol. 103
,
Is. 8
. - Ст. 83102,
DOI
10.1063/1.2902365. - Cited References: 7 . - ISSN 0021-8979
РУБ
Physics, Applied
Рубрики:
SPECTRA
IONS
Кл.слова (ненормированные):
Absorption
--
Europium alloys
--
Garnets
--
Ultraviolet radiation
--
Calcium-free flux
--
Flux-grown europium gallium garnet
--
Color centers
Аннотация:
Europium gallium garnet (EuGG) single crystals were grown from fluxes with various contents. Optical absorption spectra of EuGG grown from a flux containing calcium show an additional band in the ultraviolet and blue regions of the spectra as compared to the case of a calcium-free flux. Mossbauer spectra of the samples grown from the fluxes with different additives show no signs of other valence states of the europium ions except for 3+. However, they indicate changes in the crystal field due to the entrance of additive ions. The nature of the additional absorption must be the same as that for calcium-doped gadolinium gallium garnet, i.e., anion vacancies. Mossbauer isotope shifts and quadrupole splitting for EuGG are determined. (C) 2008 American Institute of Physics.
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Держатели документа:
[Aleksandrovsky, A. S.
Arkhipkin, V. G.
Bezmaternykh, L. N.
Gudim, I. A.
Krylov, A. S.] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Aleksandrovsky, A. S.
Arkhipkin, V. G.
Bezmaternykh, L. N.
Gudim, I. A.
Krylov, A. S.] Siberian Fed Univ, Krasnoyarsk 660079, Russia
[Vagizov, F.] Texas A&M Univ, Dept Phys, College Stn, TX 77840 USA
ИФ СО РАН
L. V. Kirensky Institute of Physics, Siberian Federal University, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Department of Physics, Texas A and M University, College Station, TX 77840, United States
Доп.точки доступа:
Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Gudim, I. A.; Гудим, Ирина Анатольевна; Krylov, A. S.; Крылов, Александр Сергеевич; Vagizov, F.
}
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6.
Vorotynov, A. M.
Exchange dependence of the spin-Hamiltonian constants for antiferromagnetically coupled S-ion pairs / A. M. Vorotynov, G. A. Petrakovskii, V. V. Rudenko> // Phys. Solid State. - 2010. -
Vol. 52
,
Is. 7
. - P. 1424-1426,
DOI
10.1134/S1063783410070164. - Cited References: 10 . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
PARAMAGNETIC-RESONANCE
MAGNETIC-ANISOTROPY
GARNETS
Аннотация:
Experimental data that indicate the existence of an exchange-dependent contribution to single-ion spin-Hamiltonian constants for antiferromagnetically coupled S-ion pairs in diamagnetic crystals are reported and generalized.
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Держатели документа:
[Vorotynov, A. M.
Petrakovskii, G. A.
Rudenko, V. V.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50/38, Krasnoyarsk 660036, Russian Federation
Доп.точки доступа:
Petrakovskii, G. A.; Петраковский, Герман Антонович; Rudenko, V. V.; Руденко, Валерий Васильевич; Воротынов, Александр Михайлович
}
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7.
Colossal magnetodielectric effect
in SmFe3(BO3)(4) multiferroic / A. A. Mukhin [et al.]> // JETP Letters. - 2011. -
Vol. 93
,
Is. 5
. - P. 275-281,
DOI
10.1134/S0021364011050079. - Cited References: 17. - We are grateful to A.K. Zvezdin and A.P. Pyatakov for the discussion of this work and valuable comments. This work was supported by the Russian Foundation for Basic Research, project nos. 10-02-00846 and 09-02-01355. . - ISSN 0021-3640
РУБ
Physics, Multidisciplinary
Рубрики:
FERROELECTRICITY
MAGNETOSTRICTION
GARNETS
Аннотация:
The colossal (more than threefold) decrease in the dielectric constant E in the easy-plane SmFe3(BO3)(4) ferroborate in a magnetic field of similar to 5 kOe applied in the basal ab plane of the crystal has been found. A close relation of this effect to anomalies in the field dependence of the electric polarization has been established. It has been shown that this magnetodielectric effect is due to the contribution to E from the electric susceptibility, which is related to the rotation of spins in the ab plane, arises in the region of the antiferromagnetic ordering T T (N) and electric polarization in the magnetic field has been proposed, taking into account the additional anisotropy in the basal plane induced by the magnetoelastic stresses.
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Держатели документа:
[Mukhin, A. A.
Ivanov, V. Yu.
Kuz'menko, A. M.] Russian Acad Sci, Prokhorov Gen Phys Inst, Moscow 119991, Russia
[Vorob'ev, G. P.
Kadomtseva, A. M.
Narizhnaya, A. S.
Popov, Yu. F.] Moscow MV Lomonosov State Univ, Moscow 119992, Russia
[Bezmaternykh, L. N.
Gudim, I. A.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 880036, Russia
ИФ СО РАН
Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow 119991, Russian Federation
Moscow State University, Moscow 119992, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 880036, Russian Federation
Доп.точки доступа:
Mukhin, A. A.; Vorob'ev, G. P.; Ivanov, V. Y.; Kadomtseva, A. M.; Narizhnaya, A. S.; Kuz'menko, A. M.; Popov, Y. F.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Gudim, I. A.; Гудим, Ирина Анатольевна
}
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8.
High-Temperature Heat Capacity
of Y2.9Ho0.1Al5O12 / V. M. Denisov [et al.]> // Phys. Solid State. - 2013. -
Vol. 55
,
Is. 4
. - P. 692-695,
DOI
10.1134/S1063783413040082. - Cited References: 21 . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
CRYSTALS
GARNETS
Аннотация:
This paper presents data on the heat capacity of Y2.9Ho0.1Al5O12 as a function of temperature (360-1020 K). The experimental data obtained are used to derive the thermodynamic functions of the oxide compound.
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Публикация на русском языке
Высокотемпературная теплоемкость Y2.9Ho0.1Al5O12 // Физика твердого тела : Физико-технический институт им. А.Ф.Иоффе РАН, 2013. - Т. 55, № 4. - С. 636-638. - ISSN 0367-3294
Держатели документа:
Siberian Fed Univ, Inst Nonferrous Met & Mat Sci, Krasnoyarsk 660025, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660074, Russia
Доп.точки доступа:
Denisov, V. M.; Denisova, L. T.; Irtyugo, L. A.; Patrin, G. S.; Патрин, Геннадий Семёнович; Volkov, N. V.; Волков, Никита Валентинович; Chumilina, L. G.
}
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9.
Magnetic, magnetoelastic, and
spectroscopic properties of TmAl3(BO3)4 / A. A. Demidov [et al.]> // J. Exp. Theor. Phys. - 2014. -
Vol. 119
,
Is. 4
. - P. 737-744,
DOI
10.1134/S106377611410015X. - Cited References: 28. - This study was supported financially by the Russian Foundation for Basic Research (project no. 13-02-12442ofi_m2) and (K.N.B.) by the grant no. MK-1700.2013.2 from the President of the Russian Federation. . - ISSN 1063-7761. - ISSN 1090-6509
РУБ
Physics, Multidisciplinary
Рубрики:
THERMAL-EXPANSION
CRYSTALS
MAGNETOSTRICTION
HoAl3(BO3)4
GARNETS
Аннотация:
The thermodynamic properties of alumoborate TmAl3(BO3)4 single crystal are studied experimentally and theoretically. A theoretical analysis based on the crystal field model makes it possible to interpret all measured parameters. The crystal field parameters are determined. The temperature (3–300 K) and field (up to 9 T) dependences of magnetization are described. The field and temperature dependences of multipole moments of the Tm3+ ion in TmAl3(BO3)4 make it possible to describe magnetostriction and low-temperature anomalies in thermal expansion.
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Публикация на русском языке
Магнитные, магнитоупругие и спектроскопические свойства TmAl3(BO3)4 [Текст] / А. А. Демидов [и др.] // Журн. эксперим. и теор. физ. : Наука, 2014. - Т. 146 Вып. 4. - С. 835-843
Держатели документа:
Bryansk State Tech Univ, Bryansk 241035, Russia
Moscow MV Lomonosov State Univ, Moscow 119992, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Spect, Moscow 142190, Russia
Доп.точки доступа:
Demidov, A. A.; Volkov, D. V.; Gudim, I. A.; Гудим, Ирина Анатольевна; Eremin, E. V.; Еремин, Евгений Владимирович; Boldyrev, K. N.; Russian Foundation for Basic Research [13-02-12442ofi_m2]; Russian Federation [MK-1700.2013.2]
}
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10.
Aliovalent substitution toward
reinforced structural rigidity in Ce3+-doped garnet phosphors featuring improved performance / T. Hu [et al.]> // J. Mater. Chem. C. - 2019. -
Vol. 7
,
Is. 46
. - P. 14594-14600,
DOI
10.1039/c9tc05354a. - Cited References: 38. - This work was supported by the National Natural Science Foundation of China (No. 51722202 and 51972118), the Guangdong Provincial Science & Technology Project (2018A050506004) and the Fundamental Research Funds for the Central Universities (D2190980). . - ISSN 2050-7534
Перевод заглавия:
Алиовалентное замещение с целью усиления структурной жесткости в люминофорных гранатах, легированных Ce3 + и имеющих улучшенные характеристики
Кл.слова (ненормированные):
Color
--
Deterioration
--
Efficiency
--
Gallium alloys
--
Garnets
--
III-V semiconductors
--
Indium alloys
--
Photoluminescence
--
Reinforcement
--
Rigidity
--
Semiconductor alloys
--
Thermal Engineering
--
Thermodynamic stability
Аннотация:
Highly efficient phosphors with thermal stability and color-tunable emission are required for the fabrication of phosphor-converted white light-emitting diodes (pc-WLEDs). Currently developed engineering strategies are generally successful in photoluminescence tuning but, unfortunately, suffer severe deterioration in emission intensity/efficiency and/or thermal stability. Herein, an efficient aliovalent substitution strategy toward reinforced structural rigidity is proposed and demonstrated experimentally. By incorporating Be2+ ion into the garnet-type Lu2SrAl4SiO12:Ce3+ phosphor, the phosphor shows enhanced internal/external quantum efficiency, from 79.2%/26.7% to 84.5%/32.9%, photoluminescence tuning from green (peaking at ∼512 nm) to yellow (peaking at ∼552 nm), and zero thermal quenching, even up to 200 °C. The Be2+ substitution at the Al2/Si2 site enables stable and rigid local surroundings around the Ce3+ activator, which is responsible for the unprecedented performance. In addition, high-quality warm WLED devices with a luminous efficiency of 158.1 lm W-1, correlated color temperature of 3858 K and high color rendering index of 81.7, are obtained by combining Lu2SrAl4SiO12:Ce3+,Be2+ as the yellow emitter, CaAlSiN3:Eu2+ as the red emitter and a blue-emitting InGaN chip. These findings highlight a new strategy for performance optimization of LED phosphors by selecting rigid covalent compounds with further reinforced structural rigidity via aliovalent substitution.
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Держатели документа:
State Key Laboratory of Luminescent Materials and Devices, Institute of Optical Communication Materials, South China University of Technology, Guangzhou, 510641, China
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, 680021, Russian Federation
Доп.точки доступа:
Hu, T.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Xia, Z.; Zhang, Q.
}
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11.
Coexistence of the
electric polarization and conductive current in the bismuth–neodymium ferrite garnet films / S. S. Aplesnin, A. N. Masyugin, M. N. Volochaev, T. Ishibashi> // J. Mater. Sci. Mater. Electron. - 2021. -
Vol. 32
. - P. 3766-3781,
DOI
10.1007/s10854-020-05121-9. - Cited References: 42 . - ISSN 0957-4522
Кл.слова (ненормированные):
Bismuth
--
Bismuth compounds
--
Dielectric materials
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Epitaxial films
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Ferroelectricity
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Gallium compounds
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Garnets
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Hysteresis
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Iron compounds
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Neodymium
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Neodymium compounds
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Piezoelectricity
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Single crystals
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Substrates
Аннотация:
The Nd1Bi2Fe5O12/Nd2Bi1Fe4Ga1O12 polycrystalline films on the glass substrate and the Nd0.5Bi2.5Fe5O12 epitaxial films on the single-crystal gadolinium gallium garnet substrate have been investigated by impedance and dielectric spectroscopy. The inductive contribution to the impedance and two relaxation channels related to ferroelectric domains and migration polarization have been established. The magnetocapacitance and magnetoimpedance have been determined. The conductive and polarization currents and the phase difference between them for the films of two types have been determined. The critical temperatures of the polarization disappearance and hysteresis I–V have been found. A model of the polarization caused by the piezoelectric effect and flexoelectric interaction has been proposed. I–V hysteresis is explained by the presence of ferroelectric domains near the interface and is associated with the hysteresis of the electric polarization.
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Держатели документа:
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Department of Materials Science and Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
Доп.точки доступа:
Aplesnin, S. S.; Masyugin, A. N.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Ishibashi, T.
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12.
Novel Cr3+-doped garnet
phosphor with broadband efficient far-red emission for photochrome matching plant-lighting / X. Dai, X. Zou, H. Zhang [et al.]> // Adv. Opt. Mater. - 2024. -
Vol. 12
,
Is. 11
. - Ст. 2302380,
DOI
10.1002/adom.202302380. - Cited References: 54. - The work was supported by the National Natural Science Foundations of China (No. 12274144), the Guangdong Provincial Special Fund for Modern Agriculture Industry Technology Innovation Teams (No. 2023KJ122), the Key Realm R&D Program of Guangdong Province (No. 2021B0707010003), the Guangdong Provincial Science and Technology Project (No. 2022A1515010229), and the Project of GDUPS (2018) for Prof. Bingfu LEI . - ISSN 2195-1071
Перевод заглавия:
Новый гранатовый люминофор, легированный Cr3+, с широкополосным эффективным излучением в дальнем красном диапазоне для фотохромного освещения растений
Кл.слова (ненормированные):
Ca2YAl3–xGe2O12:xCr3+
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garnets
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plant growth LEDs
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pc-LEDs
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photoluminescence
Аннотация:
Cr3+-doped phosphors are highly recognized in various fields for their remarkable luminous efficiency and spectral flexibility, including modern agriculture and horticulture. However, the shortage of suitable Cr3+-doped phosphors for far-red LED devices has inhibited their popularization in plant lighting. Herein, an innovative Cr3+-doped phosphor Ca2YAl3Ge2O12:Cr3+ (CYAG:Cr3+), achieving a broad far-red emission at 770 nm upon 450 nm blue light excitation is designed. The optimal CYAG:Cr3+ phosphor exhibits a high internal quantum yield of 78.2% and low thermal-quenching behavior of 85%@373 K. Thus, the fabricated phosphor-converted LEDs (pc-LEDs) for plant far-red lighting have a high output power of 33.3 mW and photovoltaic conversion efficiency of 11.5% at 100 mA. The potential of CYAG:Cr3+ in plant lighting is assessed by supplementing the far-red lighting of Italian lettuce with fabricated pc-LEDs, and the biomass of Italian lettuce is significantly increased by 33%. The successful development of CYAG:Cr3+ phosphors provides a high-quality option for plant far-red light devices and further stimulates the development of new Cr3+-doped plant-lighting phosphors.
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Держатели документа:
Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangdong, Guangzhou, 510642, China
Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong, Maoming, 25100, China
SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk, 660036, Russian Federation
The State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, School of Physics and Optoelectronics, South China University of Technology, Guangzhou, 510641, China
Доп.точки доступа:
Dai, X.; Zou, X.; Zhang, H.; Chen, W.; Yang, C.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Xia, Z.; Liu, Y.; Zhang, X.; Zheng, M.; Lei, B.
}
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