Optical characteristics of virgin and proton-irradiated ceramics of magnesium aluminate spinel

被引：27
作者：
Feldbach, Eduard [1 ]
Kudryavtseva, Irina [1 ]
Mizohata, Kenichiro [2 ]
Prieditis, Gatis [1 ]
Raisanen, Jyrki [2 ]
Shablonin, Evgeni [1 ]
Lushchik, Aleksandr [1 ]
机构：
[1] Univ Tartu, Inst Phys, W Ostwald Str 1, EE-50411 Tartu, Estonia
[2] Univ Helsinki, Dept Phys, POB 43, Helsinki, Finland
来源：
OPTICAL MATERIALS | 2019年 / 96卷
关键词：
Structural defects; Intrinsic excitations; Cathodo- and photoluminescence; Optical absorption; Proton irradiation; Magnesium aluminate spinel; RADIATION-DAMAGE; ELECTRONIC EXCITATIONS; CATION DISORDER; VACANCY DISTRIBUTION; STRUCTURAL DEFECTS; F+-CENTERS; CRYSTALS; LUMINESCENCE; RESISTANCE; CREATION;
D O I：
10.1016/j.optmat.2019.109308
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Intrinsic properties of optical ceramics of MgAl2O4 have been studied by means of low-temperature cathodo-, photo- and thermo-luminescence methods. Based on the excitation spectra for different emissions measured at 6 K, the UV luminescence at 4.5-5.8 eV is tentatively ascribed to bound excitons (formation energy about 7 eV) near antisite defects (cation in a "wrong" position) and electron-hole recombination in a spinel matrix. The complex UV luminescence band peaked around 5 eV undergoes thermal quenching from 6 to 200 K. The value of energy gap is experimentally estimated as 8.2 eV at 80 K. There is no saturation of the absorption connected with the radiation-induced F-type color centers at the rise of 100-keV proton fluence up to 7 x 10(17) cm(-2), while such irradiation is accompanied by the drastic suppression of cathodoluminescence, especially in UV spectral region. A further study of the origin of this luminescence attenuation still lies ahead.
引用
收藏
页数：7
相关论文
共 29 条
  • [21] Thermal, electrical and optical properties of proton-irradiated Makrofol DE 7-2 nuclear track detector
    Nouh, S. A.
    Abdel-Salam, M. H.
    Radwan, Yasmine E.
    Fouad, S. S.
    RADIATION EFFECTS AND DEFECTS IN SOLIDS, 2011, 166 (03): : 178 - 189
  • [22] Comparative study of filament-fed and blown powder-based laser additive manufacturing for transparent magnesium aluminate spinel ceramics
    Pappas, John M.
    Dong, Xiangyang
    JOURNAL OF LASER APPLICATIONS, 2021, 33 (04)
  • [23] Changes in the optical energy gap and ESR spectra of proton-irradiated unplasticized PVC copolymer and its possible use in radiation dosimetry
    Abdel-Fattah, AA
    Abdel-Hamid, HM
    Radwan, RM
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2002, 196 (3-4) : 279 - 285
  • [24] Transparent magnesium aluminate spinel ceramics obtained by one-step spark plasma reaction sintering of a sol-gel precursor powder
    Zarazua-Villalobos, L.
    Fantozzi, G.
    Bonnefont, G.
    Tellez-Jurado, L.
    Balmori-Ramirez, H.
    CERAMICS INTERNATIONAL, 2022, 48 (18) : 27192 - 27200
  • [25] Optical Investigation of Proton-Irradiated Metal Organic Chemical Vapor Deposition AlGaN/GaN High-Electron-Mobility Transistor Structures
    Freitas, Jaime A., Jr.
    Weaver, Bradley D.
    Koehler, Andrew D.
    Gallagher, James C.
    Anderson, Travis J.
    PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2020, 257 (04):
  • [26] OPTICAL PROPERTIES OF MAGNESIUM-ALUMINUM SPINEL IRRADIATED WITH HIGH-ENERGY ELECTRONS OF THE M-30 MICROTRON
    Pop, O.
    Maslyuk, V. T.
    Megela, I. G.
    Roman, V.
    Pylypchynets, I.
    Oleinikov, E.
    Papp, A.
    PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY, 2024, (05): : 124 - 130
  • [27] Photoactivity of magnesium aluminate under solar irradiation for treatment of wastewater contaminated by methylene blue: Effect of self-combustion factors on spinel characteristics
    Salem, Shiva
    Nouri, Babak
    Ghadiri, Mohammad
    SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2020, 218
  • [28] Insight into the optical, color, photoluminescence properties, and photocatalytic activity of the N- O and C- O functional groups decorating spinel type magnesium aluminate
    Wang, Shifa
    Gao, Huajing
    Wei, Yong
    Li, Yanwu
    Yang, Xiaohong
    Fang, Leiming
    Lei, Li
    CRYSTENGCOMM, 2019, 21 (02): : 263 - 277
  • [29] Optical and laser characteristics of Co-doped magnesium-aluminum spinel crystals grown using molybdenum crucible
    Nizhankovskyi, S. V.
    Vovk, O. O.
    Kozlovskyi, A. A.
    Sidelnikova, N. S.
    Siryk, YuV.
    Kovalenko, N. O.
    Vorona, I. O.
    Sofronov, D. S.
    Skoryk, S. M.
    Baumer, V. N.
    Bryleva, K. Yu
    Pritula, I. M.
    OPTICAL MATERIALS, 2023, 141
123