Enhanced Long-Persistence of Sr2MgSi2O7 : Eu2 + , Dy3 + Phosphors by Codoping with Ce3 +
作者： Yanqin Li , Yuhua Wang , Yu Gong , Xuhui Xu
DOI: 10.1149/1.3076190
关键词: Afterglow 、 Doping 、 Materials science 、 Energy transfer 、 Analytical chemistry 、 Emission band 、 Phosphor
摘要: Sr 2 MgSi O 7 samples doped with Ce 3+ , Eu 2+ (Eu ), Dy and ) were prepared studied. The 5d-4f emissions from two sites in observed. However, only one single emission band at 466 nm was found :Eu . energy transfer to demonstrated be a multipolar interaction. It that :Ce showed no afterglow. some afterglow short persistence, its could enhanced by the incorporation of triply phosphor exhibited higher brightness longer lasting time than which ascribed more traps formed
harvard.edu
ecsdl.org参考文章(25)
Xiaoming Liu, Cuikun Lin, Jun Lin, White light emission from Eu3+ in CaIn2O4 host lattices Applied Physics Letters. ,vol. 90, pp. 081904- ,(2007) , 10.1063/1.2539632
Dongdong Jia, Jing Zu, Boqun Wu, Observation of lattice distortion due to low concentration dopants Journal of Materials Science Letters. ,vol. 20, pp. 1313- 1315 ,(2001) , 10.1023/A:1010994300207
Qin Fei, Chengkang Chang, Dali Mao, Luminescent properties of Sr2MgSi2O7 and Ca2MgSi2O7 long lasting phosphors activated by Eu2+, Dy3+ Journal of Alloys and Compounds. ,vol. 390, pp. 133- 137 ,(2005) , 10.1016/J.JALLCOM.2004.06.096
Shigeki SHIRAKURA, Kenji TODA, Yu-ichiro IMANARI, Takashi NONOGAWA, Kazuyoshi UEMATSU, Mineo SATO, Yoshihiro NISHISU, Mikio KOBAYASHI, 長残光蛍光体 Sr2MgSi2O7: Eu, Dy のゾル-ゲル合成 Journal of the Ceramic Society of Japan. ,vol. 113, pp. 484- 487 ,(2005) , 10.2109/JCERSJ.113.484
Huajie Song, Donghua Chen, Wangjun Tang, Yuhua Peng, Synthesis of SrAl2O4 : Eu2+, Dy3+, Gd3+ phosphor by combustion method and its phosphorescence properties Displays. ,vol. 29, pp. 41- 44 ,(2008) , 10.1016/J.DISPLA.2007.08.004
D. Jia, W. M. Yen, Trapping Mechanism Associated with Electron Delocalization and Tunneling of CaAl2 O 4 : Ce3 + , A Persistent Phosphor Journal of The Electrochemical Society. ,vol. 150, ,(2003) , 10.1149/1.1553792
Nobuhiro Kodama, Tomoko Takahashi, Mitsuo Yamaga, Yoshifumi Tanii, Jianrong Qiu, Kazuyuki Hirao, Long-lasting phosphorescence in Ce3+-doped Ca2Al2SiO7 and CaYAl3O7 crystals Applied Physics Letters. ,vol. 75, pp. 1715- 1717 ,(1999) , 10.1063/1.124799
Woan-Jen Yang, Teng-Ming Chen, Ce3+∕Eu2+ codoped Ba2ZnS3: A blue radiation-converting phosphor for white light-emitting diodes Applied Physics Letters. ,vol. 90, pp. 171908- ,(2007) , 10.1063/1.2731685
V. Sivakumar, U. V. Varadaraju, Ce3 + → Eu2 + Energy Transfer Studies on BaMgSiO4 A Green Phosphor for Three Band White LEDs Journal of The Electrochemical Society. ,vol. 154, ,(2007) , 10.1149/1.2714303
T. Matsuzawa, Y. Aoki, N. Takeuchi, Y. Murayama, A New Long Phosphorescent Phosphor with High Brightness, SrAl2 O 4 : Eu2 + , Dy3 + Journal of The Electrochemical Society. ,vol. 143, pp. 2670- 2673 ,(1996) , 10.1149/1.1837067