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采用高温固相法合成了Sr4Al14O25: Eu2+,Sr4Al14O25: Eu2+,Dy3+和Sr4Al14O25: Eu2+,Nd3+材料,研究了Dy3+或Nd
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关键词:
- 陷阱能级 /
- Sr4Al14O25: Eu2+ /
- 热释光
The Sr4Al14O25: Eu2+,Sr4Al14O25: Eu2+, Dy3+ and Sr4Al14O25: Eu2+, Nd3+samples were synthesized by the conventional solid state reaction method. The influence of doping of Dy3+ or Nd3+ on trap levels of Sr4Al14O25: Eu2+ were studied. The results indicated that there are two trap levels with different depths, as shown in the thermoluminescence spetra of Sr4Al14O25: Eu2+, and the shallow trap level is suitable for electrons to escape at room temperature.The dopant Dy3+ enhances the concentration of electrons trapped by the shallow trap levels, leading to the notable increase of afterglow of Sr4Al14O25: Eu2+.The concentration of electrons trapped by deep trap levels were is by doping with Nd3+.Since the deep trap level is not appropriate for electron to escape at room temperature, the dopant of Nd3+does not improve the room temperature afterglow .-
Keywords:
- trap level /
- Sr4Al14O25: Eu2+ /
- thermoluminescence
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[1] [1]Meléndre R, Arellano-Tánori O, Pedroza-Montero M, Yen W M, Barboza-Flores M 2009 J. Lumin. 129 679
[2] [2] Arellano-Tánori O, Meléndrez R, Pedroza-Montero M 2008 J. Lumin. 128 173
[3] [3]Wang G H, Liang X P, Gu Y F 2008 Spect. and Spect. Analy. 28 1020(in Chinese) [王光辉、梁小平、顾玉芳 2008 光谱学与光谱分析 28 1020][4]Zhu Y, Zheng M T, Zeng J H 2009 Mater. Chem. and Phys. 113 721
[4] [5]He Z Y, Wang X J, Yen W M 2006 J. Lumin. 119 309
[5] [6]Lian Z H, Li C Y, Wang R S 2006 Chin. J. Lumin. 27 489 (in Chinese) [谦志红、 李成宇、 王瑞生等 2006 发光学报 27 489]
[6] [7] Suriyamurthy N, Panigrahi B S 2008 J. Lumin. 128 1809
[7] [8]Zhang L J, Hua Y L, Wu X M, Zhang G H, Wang Y, Yin S G 2008 Acta. Phys. Sin 57 1913 (in Chinese) [张丽娟、 华玉林、 吴晓明、 张国辉、 王宇、 印寿根 2008 57 1913]
[8] [9]Wang L H, Xu Z, Zhao H, Xu C Z 1998 Journal of Northern Jiaotong University 22 41 (in Chinese) [王丽辉、 徐征、 赵辉、 徐长征 1998 北方交通大学学报 22 41]
[9] ]Matsuzawa T, Aoki Y, Takeuchi T, Murayama Y 1996 J. Elec. Soc. 143 2670
[10] ] Aitasalo T, Hōlsā J, Jungener H, Krupa J, Lastusaari M, Legendziewicz J, Niittykoski J 2004 Radia. Meas. 38 727
[11] ]Suriyamurthy N, Panigrahi B S 2008 J. Lumin. 128 1809
[12] ]Zhao X Y, Cheng K C, Da L M 2004 J. Lumin. 368 274
[13] ] Toh K, Nagata S, Tsuchiya B, Shikama T 2006 NIM B 249 209
[14] ]Jia W, Yuan H, Lu L, Liu H, Yen W M 1998 J. Lumin. 76-77 424
[15] ] Liang L, Chang C, Mao D, Feng C 2004 J. Alloys Comp. 377 211
[16] ] Katsumata T, Toyomane S, Tonegawa A, Kanai Y, Kaneyama U 2002 J. Cryst. Growth 237-239 361
[17] ] Peng M Y, Pei Z W, Hong G Y, Su Q 2003 Chem. Phys. Letters 371 1
[18] ] Poort S H M, Blokpoel W P, Blasse G 1995 Chem. Mater. 7 1547
[19] ]Wu Y, Shi C S 1994 Rare Earth 15 41 (in Chinese)[吴郢、 石春山 1994 稀土15 41]
[20] ] Wang D, Wang M 1999 J. Mater. Sci. 34 4959
[21] ] Nakamura T, Kaiya K, Takahashi N, Matsuzawa T 1999 Chem. Phys. 1 4011
[22] ] Bos A J J 2007 Radiat. Meas. 41 S45
[23] ] Guo C F, Tang Q, Zhang C X, Huang D X, Su Q 2007 J. Lumin. 126 333
[24] ]Li C Y, Su Q, Qiu J R 2003 Chin. J. Lumin. 24 19 (in Chinese) [李成宇、 苏锵、 丘建荣 2003发光学报 24 19]
[25] ]Luo X X, Yu J J, Lin G X, Xiao Z Q, Duan J X, Xiao Z G 2002 Chin. J. Lumin. 23 497 (in Chinese) [罗昔贤、 于晶杰、 林广旭、 肖志强、 段锦霞、 肖志国 2002发光学报 23 497]
[26] ]Liu B, Su C S, Zhou D F, Qi Z M, Hu G Q, Tang H G 2001 Acta. Phys. Sin 50 1627 (in Chinese) [刘波、 施朝淑、 周东方、 戚泽明、 胡关钦、 汤洪高 2001 50 1627]
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