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The scheelite-structured CaWO4 phosphors doped with different concentrations of Sm3+ were prepared by precipitation method. Photoluminescence properties of Sm3+-doped CaWO4 samples were studied. Results indicate that red light emission of Sm3+ with higher color purity in the samples can be excited by 404 nm blue light. There are 4f-4f intrinsic emission of Sm3+ and a strong self-excitation emission of CaWO4 when excited by 240 nm short-wave ultraviolet, and the white light emission can be obtained. Experiments show that the best Sm3+ doping concentration is 2%. The energy transfer type between Sm3+ ions was determined to be the electric dipole-electric dipole interaction and the critical energy transfer distance (Dc) was calculated to be 2.0 nm.
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Keywords:
- photoluminescence /
- CaWO4：Sm3+ /
- fluorescent lifetime /
- energy transfer
[1] Ryu J H, Bang S Y, Kim W S, Park G S, Kim K M, Yoon J W, Shim K B, Koshizaki N 2007 J. Alloys Compd. 441 146
[2] Chen G X, Zhang Q Y, Zhao C, Shi D M, Jiang Z H 2010 Acta Phys. Sin. 59 1321 (in Chinese) [陈敢新, 张勤远, 赵纯, 石冬梅, 姜中宏 2010 59 1321]
[3] Longo V M, Orhan E, Cavalcante L S, Porto S L, Espinosa J W M, Varela J A, Longa E 2007 Chem. Phys. 334 180
[4] Feng X H, Meng Q Y, Sun J T, L S C 2011 Acta Phys. Sin. 60 037806 (in Chinese) [冯晓辉, 孟庆裕, 孙江亭, 吕树臣 2011 60 037806]
[5] Meng Q Y, Zhang Q, Li M, Liu L F, Qu X R, Wan W L, Sun J T 2012 Acta Phys. Sin. 61 107804 (in Chinese) [孟庆裕, 张庆, 李明, 刘林峰, 曲秀荣, 万维龙, 孙江亭 2012 61 107804]
[6] Kodaira C A, Britoa H F, Malta O L, Serrac O A 2003 J. Lumin 101 11
[7] Jia P Y, Liu X M, M Yu, Luo Y, Fang J, Lin J 2006 Chem Phys Lett. 424 358
[8] Kodaira C A, Brito H F., Felinto M C F C 2003 J. Solid State Chem. 171 401
[9] Tian Y, Chen B J, Yu H Q, Hua R N 2011 J. Colloid Interface Sci. 360 586
[10] Tanabe S, Hayashi H, Hanada T, Onodera N 2002 Opt. Mater. 19 343
[11] Yang H M, Wang Z L, Gong M L, Liang H B 2009 J. Alloys Compd. 488 331
[12] Li C X, Lin C K, Liu X M, Lin J 2008 J. Nanosci. Nanotechnol. 8 1183
[13] Xia Z G, Chen D M 2010 J. Am. Ceram. Soc. 93 1397
[14] Tian Y, Liu Y, Hua R N, Na L Y, Chen B J 2012 Mater. Res. Bull. 47 59
[15] Jin Y Hao Z D Zhang X, Luo Y S, Wang X J, Zhang J H 2011 Opt. Mater. 33 1591
[16] Huang S H, Lou L R 1990 Chin. J. Lumin 11 1 (in Chinese) [黄世华, 楼立人 1990 发光学报 11 1]
[17] Meng Q Y, Chen B J, Xu W, Yang Y M 2007 J. Appl. Phys. 102 093505
[18] Tian Y, Chen B J, Tian B N, Hua R N, Sun J S 2011 J. Alloys Compd. 509 6096
[19] Suhasini T, Kumar J S, Sasikala T, Jang K, Lee H S, Jayasimhadri M, Jeong J H, Yi S S, Moorthy L R 2009 Opt. Mater. 31 1167
[20] Inokuti M, Hirayama F 1965 J. Chem. Phys. 43 1978
[21] Blasse G 1986 J. Solid State Chem. 62 207
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[1] Ryu J H, Bang S Y, Kim W S, Park G S, Kim K M, Yoon J W, Shim K B, Koshizaki N 2007 J. Alloys Compd. 441 146
[2] Chen G X, Zhang Q Y, Zhao C, Shi D M, Jiang Z H 2010 Acta Phys. Sin. 59 1321 (in Chinese) [陈敢新, 张勤远, 赵纯, 石冬梅, 姜中宏 2010 59 1321]
[3] Longo V M, Orhan E, Cavalcante L S, Porto S L, Espinosa J W M, Varela J A, Longa E 2007 Chem. Phys. 334 180
[4] Feng X H, Meng Q Y, Sun J T, L S C 2011 Acta Phys. Sin. 60 037806 (in Chinese) [冯晓辉, 孟庆裕, 孙江亭, 吕树臣 2011 60 037806]
[5] Meng Q Y, Zhang Q, Li M, Liu L F, Qu X R, Wan W L, Sun J T 2012 Acta Phys. Sin. 61 107804 (in Chinese) [孟庆裕, 张庆, 李明, 刘林峰, 曲秀荣, 万维龙, 孙江亭 2012 61 107804]
[6] Kodaira C A, Britoa H F, Malta O L, Serrac O A 2003 J. Lumin 101 11
[7] Jia P Y, Liu X M, M Yu, Luo Y, Fang J, Lin J 2006 Chem Phys Lett. 424 358
[8] Kodaira C A, Brito H F., Felinto M C F C 2003 J. Solid State Chem. 171 401
[9] Tian Y, Chen B J, Yu H Q, Hua R N 2011 J. Colloid Interface Sci. 360 586
[10] Tanabe S, Hayashi H, Hanada T, Onodera N 2002 Opt. Mater. 19 343
[11] Yang H M, Wang Z L, Gong M L, Liang H B 2009 J. Alloys Compd. 488 331
[12] Li C X, Lin C K, Liu X M, Lin J 2008 J. Nanosci. Nanotechnol. 8 1183
[13] Xia Z G, Chen D M 2010 J. Am. Ceram. Soc. 93 1397
[14] Tian Y, Liu Y, Hua R N, Na L Y, Chen B J 2012 Mater. Res. Bull. 47 59
[15] Jin Y Hao Z D Zhang X, Luo Y S, Wang X J, Zhang J H 2011 Opt. Mater. 33 1591
[16] Huang S H, Lou L R 1990 Chin. J. Lumin 11 1 (in Chinese) [黄世华, 楼立人 1990 发光学报 11 1]
[17] Meng Q Y, Chen B J, Xu W, Yang Y M 2007 J. Appl. Phys. 102 093505
[18] Tian Y, Chen B J, Tian B N, Hua R N, Sun J S 2011 J. Alloys Compd. 509 6096
[19] Suhasini T, Kumar J S, Sasikala T, Jang K, Lee H S, Jayasimhadri M, Jeong J H, Yi S S, Moorthy L R 2009 Opt. Mater. 31 1167
[20] Inokuti M, Hirayama F 1965 J. Chem. Phys. 43 1978
[21] Blasse G 1986 J. Solid State Chem. 62 207
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