d-f luminescence of Ce^(3+) and Eu^(2+) ions in BaAl_(2)O_(4), SrAl_(2)O_(4) and CaAl_(2)O_(4) phosphors

作     者：K.A.GEDEKAR S.P.WANKHEDE S.V.MOHARIL R.M.BELEKAR 

作者机构：Department of PhysicsK.D.K.College of EngineeringNagpur 440009India Department of PhysicsNagpur UniversityNagpur 440010India Department of Physics and ElectronicsGovernment Vidarbha Institute of Science and HumanitiesAmravati 444604India 

出 版 物：《Journal of Advanced Ceramics》 (先进陶瓷（英文）)

年 卷 期：2017年第6卷第4期

页      面：341-350页

核心收录：

学科分类：0808[工学-电气工程] 081704[工学-应用化学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 070301[理学-无机化学] 0702[理学-物理学] 

基　　金：We are thankful to the management of K.D.K College of Engineering  Nagpur  India  for providing necessary assistance. This article is published with open access at Springerlink.com 

主　　题：Ce^(3+) Eu^(2+) photoluminescence X-ray diffraction(XRD) crystal structure 

摘      要：Ce^(3+)and Eu^(2+)doped alkaline earth aluminates MAl_(2)O_(4)(M=Ca,Sr,Ba)were prepared by single-step combustion synthesis at low temperature(600℃).X-ray diffraction(XRD)analysis confirmed the formation of BaAl_(2)O_(4),CaAl_(2)O_(4),and SrAl_(2)O_(4).Photoluminescence spectra and optimal luminescent properties of Ce^(3+)and Eu^(2+)doped MAl_(2)O_(4) phosphors were *** between Eu^(2+)and Ce^(3+)f-d transitions was *** properties known for Ce^(3+)were used to predict those of Eu^(2+)by using Dorenbos’*** values thus calculated were in excellent agreement with the experimental *** preferential substitution of Ce^(3+)and Eu^(2+)at different Ba^(2+),Sr^(2+),Ca^(2+)crystallographic sites was *** dependence of emission wavelengths of Ce^(3+)and Eu^(2+)on local symmetry of different crystallographic sites was also studied by using Van Uitert’s empirical *** results matched excellently with the predictions of Dorenbos’and Van Uitert’s models.