UV light induced processes in pure and doped AlN ceramics

被引：3
|
作者：
Trinkler, L. [1 ]
Trukhin, A. [1 ]
Cipa, J. [1 ]
Berzina, B. [1 ]
机构：
[1] Univ Latvia, Inst Solid State Phys, Kengaraga St 8, LV-1063 Riga, Latvia
来源：
OPTICAL MATERIALS | 2021年 / 121卷
关键词：
Aluminium nitride; UV light irradiation; Photoluminescence; Thermoluminescence; Recombination luminescence; Photoelectric effect; STIMULATED LUMINESCENCE; ALUMINUM; THERMOLUMINESCENCE; PHOTOEXCITATION; EMISSION; CRYSTALS; ENERGY;
D O I：
10.1016/j.optmat.2021.111550
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
AlN ceramics samples, pure and doped with Y2O3, Eu2O3 and GaN, and produced from the same AlN powder, were studied for photoelectric effect, photoluminescence spectra and kinetics and thermoluminescence under irradiation with UV light from above- and below-bandgap spectral region. Common properties of all studied samples were found, such as presence of the complex UV-Blue and Red emission bands in PL and TL emission due to oxygen-related defects and manganese impurities, correspondingly; a new emission band at 320 nm, which is present in PL and absent in TL emission spectrum and is assigned to an oxygen-related centre; luminescence decay comprised of superposition of exponents of various duration from nanoseconds to hundreds of minutes. Among the studied samples the dopant-related luminescence was observed only in AlN:Eu2O3 at 525 nm. No effect of the dopants on fading rate of the stored TL signal was observed. Such properties of the PL and TL as luminescence intensity and relative contribution of the emission bands manifested by individual samples were explained by influence of the dopant type and ceramics sintering procedure on generation and recharging of the intrinsic and impurity defects.
引用
收藏
页数：10
相关论文
共 50 条
  • [41] Eu2+/Dy3+ co-doped white light emission glass ceramics under UV light excitation
    Ye, Renguang
    Cui, Zhiguang
    Hua, Youjie
    Deng, Degang
    Zhao, Shilong
    Li, Chenxia
    Xu, Shiqing
    JOURNAL OF NON-CRYSTALLINE SOLIDS, 2011, 357 (11-13) : 2282 - 2285
  • [42] Fast and material-friendly crosslinking with pure UV light
    Adhaesion Kleben und Dichten, 2002, 46 (03):
  • [43] UV light-induced thermoluminescence of Er plus Li doped ZrO2
    Hristov, H.
    Arhangelova, N.
    Velev, V.
    Penev, I.
    Bello, M.
    Moschini, G.
    Uzunov, N.
    16 ISCMP: PROGRESS IN SOLID STATE AND MOLECULAR ELECTRONICS, IONICS AND PHOTONICS, 2010, 253
  • [44] Microstructures and dielectric properties of pure and doped KNbO3 ceramics
    Ding, Shengping, 1600, (73):
  • [45] ELECTRON-MICROSCOPY STUDIES OF PURE AND DOPED ELECTROOPTIC PLZT CERAMICS
    DIMZA, V
    PLAUDE, A
    LIN, CG
    FENG, DA
    LIN, HM
    ZHU, JS
    FERROELECTRICS, 1992, 131 (1-4) : 249 - 255
  • [46] UV light induced plasticization and light activated shape memory of spiropyran doped ethylene-vinyl acetate copolymers
    Zhang, Xianzhe
    Zhou, Qingqing
    Liu, Huarong
    Liu, Hewen
    SOFT MATTER, 2014, 10 (21) : 3748 - 3754
  • [47] Thermal diffusivity of pure and impurity-doped titanium dioxides ceramics
    Fang, X
    Hing, P
    Oh, JT
    Fong, HS
    Chen, X
    Wu, M
    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2001, 113 (1-3) : 474 - 476
  • [48] Microstructure and toughening of SiC-AlN ceramics induced by seeding with α-SiC
    Lim, Chang Sung
    JOURNAL OF CERAMIC PROCESSING RESEARCH, 2010, 11 (06): : 716 - 720
  • [49] Low-temperature sintering of Y-Li-Ca-doped AlN ceramics
    Xu, XL
    Li, WL
    Zhuang, HR
    Xu, SY
    Li, MZ
    JOURNAL OF INORGANIC MATERIALS, 1999, 14 (01) : 175 - 179
  • [50] FAST PROCESSES IN UV-2-PHOTON EXCITATION OF PURE LIQUIDS
    SANDER, M
    BRUMMUND, U
    LUTHER, K
    TROE, J
    BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1992, 96 (10): : 1486 - 1490
12345