Kinetics of Cr3+ to Cr4+ ion valence transformations and intra-lattice cation exchange of Cr4+ in Cr,Ca:YAG ceramics used as laser gain and passive Q-switching media

被引：30

作者：

Chaika, M. A. ^{[1
,2
]}

Tomala, R. ^{[1
]}

Strek, W. ^{[1
]}

Hreniak, D. ^{[1
]}

Dluzewski, P. ^{[3
]}

Morawiec, K. ^{[3
]}

Mateychenko, P., V ^{[2
]}

Fedorov, A. G. ^{[2
]}

Doroshenko, A. G. ^{[2
]}

Parkhomenko, S., V ^{[2
]}

Lesniewska-Matys, K. ^{[4
]}

Podniesinski, D. ^{[4
]}

Kozlowska, A. ^{[4
]}

Mancardi, G. ^{[5
]}

Vovk, O. M. ^{[2
]}

机构：

[1] Polish Acad Sci, Inst Low Temp & Struct Res, Ul Okolna 2, PL-50422 Wroclaw, Poland

[2] Natl Acad Sci Ukraine, Inst Single Crystals, 60 Nauky Ave, UA-61072 Kharkov, Ukraine

[3] Polish Acad Sci, Inst Phys, Aleja Lotnikow 32-46, PL-02668 Warsaw, Poland

[4] Inst Elect Mat Technol, 133 Wolczynska Str, PL-01919 Warsaw, Poland

[5] UCL, Dept Chem, Gower St, London WC1E 6BT, England

来源：

JOURNAL OF CHEMICAL PHYSICS | 2019年 / 151卷 / 13期

关键词：

OPTICAL IN-SITU; CONVERSION EFFICIENCY; OXYGEN DIFFUSION; HIGH-TEMPERATURE; WHITE EMISSION; YAG; Y3AL5O12; OPTIMIZATION; ABSORPTION; ADDITIVES;

D O I：

10.1063/1.5118321

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper focuses on the kinetics of Cr4+ formation in Cr,Ca:YAG ceramics prepared by solid-state reaction sintering. The kinetics of Cr4+ formation was studied by annealing of Cr,Ca:YAG ceramics in ambient air under different temperatures at different times, resulting in the transformation of Cr3+ to Cr4+. The activation energy (E-a) of Cr3+ oxidation determined by the Jander model was 2.7 +/- 0.2 eV, which is in good correlation with the activation energy of innergrain oxygen diffusion in the YAG lattice. It is concluded that Cr3+ to Cr4+ transformation in YAG ceramics is limited by oxygen diffusion through the grain body. It was established that in Cr,Ca:YAG ceramics, the intralattice cation exchange, in which the Cr4+ ions exchange positions with the Al3+ ions, switching from "A" to "D" sites, is faster than Cr3+ to Cr4+ oxidation. In the temperature range of 900-1300 degrees C, the reaction enthalpy of Al3+/Cr4+ ion exchange between octahedral "A" and tetrahedral "D" lattice sites is close to zero, and this exchange ratio is thermodynamically driven by entropy.

引用

页数：10

共 44 条

[1]

[Anonymous], 1978, SOLID STATE REACTION

[2]

Bagdasarov K. S., 1976, Soviet Journal of Quantum Electronics, V6, P708, DOI 10.1070/QE1976v006n06ABEH011603

[3] A new approach to Y3Al5O12 transparent ceramics by vacuum sintering of spray-dried xerogels [J].

Balabanov, S. S. ;

Gavrishchuk, E. M. ;

Drobotenko, V. V. ;

Palashov, O. V. ;

Rostokina, E. Ye. ;

Yavetskiy, R. P. .

CERAMICS INTERNATIONAL, 2016, 42 (01) :961-965

[4] Yb:(YLa)2O3 laser ceramics produced by microwave sintering [J].

Balabanov, S. S. ;

Bykov, Yu. V. ;

Egorov, S. V. ;

Eremeev, A. G. ;

Gavrishchuk, E. M. ;

Khazanov, E. A. ;

Mukhin, I. B. ;

Palashov, O. V. ;

Permin, D. A. ;

Zelenogorskii, V. V. .

QUANTUM ELECTRONICS, 2013, 43 (04) :396-400

[5] Colloid chemical properties of binary sols as precursors for YAG optical ceramics [J].

Balabanov, Stanislav S. ;

Gavrishchuk, Evgeny M. ;

Rostokina, Elena Ye. ;

Plekhovich, Alexander D. ;

Kuryakov, Vladimir N. ;

Amarantov, Sergey V. ;

Khamaletdinova, Nadiya M. ;

Yavetskiy, Roman P. .

CERAMICS INTERNATIONAL, 2016, 42 (15) :17571-17580

[6] Configuration coordinate energy level diagrams of intervalence and metal-to-metal charge transfer states of dopant pairs in solids [J].

Barandiaran, Zoila ;

Meijerink, Andries ;

Seijo, Luis .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2015, 17 (30) :19874-19884

[7] Fabrication of YAG/Cr:YAG transparent composite ceramics and characterization by light sheet fluorescence imaging [J].

Boulesteix, Remy ;

Perriere, Camille ;

Maitre, Alexandre ;

Chretien, Lucie ;

Brenier, Alain ;

Guyot, Yannick .

OPTICAL MATERIALS, 2019, 96

[8] Optical in situ Study of Reduction/Oxidation Processes in Cr,Mg:YAG Epitaxial Film [J].

Buryy, O. ;

Ubizskii, S. ;

Syvorotka, I. I. ;

Becker, K. -D. .

ACTA PHYSICA POLONICA A, 2010, 117 (01) :184-188

[9] The Q-switched Nd:YAG and Yb:YAG microchip lasers optimization and comparative analysis [J].

Buryy, OA ;

Ubiszkii, SB ;

Melnyk, SS ;

Matkovskii, AO .

APPLIED PHYSICS B-LASERS AND OPTICS, 2004, 78 (3-4) :291-297

[10] Influence of calcium concentration on formation of tetravalent chromium doped Y3Al5O12 ceramics [J].

Chaika, M. A. ;

Dulina, N. A. ;

Doroshenko, A. G. ;

Parkhomenko, S. V. ;

Gayduk, O. V. ;

Tomala, R. ;

Strek, W. ;

Hreniak, D. ;

Mancardi, G. ;

Vovk, O. M. .

CERAMICS INTERNATIONAL, 2018, 44 (12) :13513-13519

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