Departmental Bulletin Paper ユーロピウムを添加した蛍光体の光励起および応力による発光特性の評価
Stress Activated- and Photo-Luminescence Properties in Eu-Doped (Sr, Ba)Al_2O_4 Phosphors Prepared by Solid State Reaction

藤原, 光二郎  ,  蔵元, 俊己  ,  横山, 宏有  ,  前田, 幸治

44pp.63 - 65 , 2015-07-31 , 宮崎大学工学部
Eu doped SrAl_2 O_4 and BaAl_2 O_4 were prepared by solid state reaction method added with H_3 BO_3 as a flux. We developed a new measuring equipment for Mechano-luminescence (ML) which was emitted by application of vibration stress generated by a piezo actuator.SrAl_2 O_4 emitted broad green light identified from Eu^<2+> in Photoluminescence (PL) and ML. The both intensities of luminescence from BaAl_2 O_4 showed weaker than that from SrAl_2 O_4 caused by the difference in the symmetry of each crystalline structure.

Number of accesses :  

Other information