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Two green emitting phosphors, Ba3Tb(BO3)3 and Ba3Tb(BO3)3 ∶Ce3+, are synthesized by the high temperature solid-state method, and their luminescent characteristics are investigated. Ba3Tb(BO3)3 phosphor shows several emission peaks located at 439, 493, 547, 589 and 629 nm separately. The emission peaks correspond to the 5D3→7F4 and 5D4→7FJ=6. 5, 4, 3 transitions of Tb3+, respectively, and the maximal peak is 547 nm. For the 547 nm emission, the excitation spectrum consists of several bands, and the maximal peak is located at 380 nm. The Ce3+-activated Ba3Tb(BO3)3 phosphor is studied, and the result shows that the emission spectrum distribution of Ba3Tb(BO3)3 ∶Ce3+ is the same as that of Ba3Tb(BO3)3 phosphor, however, its emission intensity is higher than that of Ba3Tb(BO3)3,which is attributed to the sensitizing action of Ce3+ on Tb3+ in Ba3Tb(BO3)3. For the 547 nm emission, the excitation spectrum of Ba3Tb(BO3)3 ∶Ce3+presents a broad band, differing from that of Ba3Tb(BO3)3 phosphor. The effect of H3BO3 on the emission intensity of Ba3Tb(BO3)3 ∶Ce3+ phosphor is investigated, and the results show that the emission intensity can reach a maximum for 15 wt% excessive H3BO3. All the results show that Ba3Tb(BO3)3 ∶Ce3+ is a green emitting phosphor for white LED.
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Keywords:
- white LED /
- Ba3Tb(BO3)3 /
- Ce3+ /
- luminescent characteristics
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[2] Setlur A A, Heward W J, Gao Y, Srivastava, A M, Chandran R G, Shankar M V 2006 Chemical Materials 18 3314
[3] Kuo C H, Sheu J K, Chang S J, Su Y K, Wu L W, Tsai J M, Liu C H, Wu P K 2003 Japanese Journal of Applied Physics Part 1 42 2284
[4] Wang Z J, Li P L, Wang Y, Yang Z P, Guo Q L 2009 Acta Physica Sinica 58 1257 (in Chinese) [王志军、李盼来、王 颖、杨志平、郭庆林 2009 物理学报 58 1257]
[5] Song Y H, Jia G, Yang M, Huang Y J, You H P, Zhang H J 2009 Appl. Phys. Lett. 94 091902-1
[6] Li P L, Wang Z J, Yang Z P, Guo Q L 2010 Journal of The Electrochemical Society 157 H504
[7] Ma M X, Zhu D C, Tu M J 2009 Acta Phys. Sin. 58 5826 (in Chinese) [马明星、朱达川、涂铭旌 2009 物理学报 58 5826]
[8] Yang Z P, Liu Y F, Wang L W Yu Q M, Xiong Z J, Xu X L 2007 Acta Phy. Sin. 56 546 (in Chinese) [杨志平、刘玉峰、王利伟、余泉茂、熊志军、徐小岭 2007 物理学报 56 546]
[9] Liao J S, Liu B, Lai H S 2009 Journal of Luminescence 129 668
[10] Zhang J C, Wang Y H, Zhang Z Y, Xie P, Li H H, Jiang Y P 2008 Chin. Phys. Lett. 25 1453
[11] Zhang Z, Wang J, Zhang M, Zhang Q, Su Q 2008 Appl. Phys. B 91 529
[12] Li P L, Pang L B, Wang Z J, Yang Z P, Guo Q L, Li X 2009 Journal of Alloys and Compounds 478 813
[13] Liao J S, Qiu B, Wen H R, Chen J L, You W X 2009 Marerials Research Bulletin 44 1863
[14] Liu X R, Wang X J, Wang Z K 1989 Phys. Rev. B 39 10633
[15] Meng Q Y, Chen B J, Xu W, Zhao X X, Yang Y M, Di W H, Wang X J 2009 Spectroscopy and Spectral Analysis 29 151 (in Chinese) [孟庆裕、陈宝玖、许 武、赵晓霞、杨艳民、狄卫华、王晓君 2009 光谱学与光谱分析 29 151]
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[1] Nakamura S, Fasol G 1996 The Blue Laser Diode (Springer Berlin) p1
[2] Setlur A A, Heward W J, Gao Y, Srivastava, A M, Chandran R G, Shankar M V 2006 Chemical Materials 18 3314
[3] Kuo C H, Sheu J K, Chang S J, Su Y K, Wu L W, Tsai J M, Liu C H, Wu P K 2003 Japanese Journal of Applied Physics Part 1 42 2284
[4] Wang Z J, Li P L, Wang Y, Yang Z P, Guo Q L 2009 Acta Physica Sinica 58 1257 (in Chinese) [王志军、李盼来、王 颖、杨志平、郭庆林 2009 物理学报 58 1257]
[5] Song Y H, Jia G, Yang M, Huang Y J, You H P, Zhang H J 2009 Appl. Phys. Lett. 94 091902-1
[6] Li P L, Wang Z J, Yang Z P, Guo Q L 2010 Journal of The Electrochemical Society 157 H504
[7] Ma M X, Zhu D C, Tu M J 2009 Acta Phys. Sin. 58 5826 (in Chinese) [马明星、朱达川、涂铭旌 2009 物理学报 58 5826]
[8] Yang Z P, Liu Y F, Wang L W Yu Q M, Xiong Z J, Xu X L 2007 Acta Phy. Sin. 56 546 (in Chinese) [杨志平、刘玉峰、王利伟、余泉茂、熊志军、徐小岭 2007 物理学报 56 546]
[9] Liao J S, Liu B, Lai H S 2009 Journal of Luminescence 129 668
[10] Zhang J C, Wang Y H, Zhang Z Y, Xie P, Li H H, Jiang Y P 2008 Chin. Phys. Lett. 25 1453
[11] Zhang Z, Wang J, Zhang M, Zhang Q, Su Q 2008 Appl. Phys. B 91 529
[12] Li P L, Pang L B, Wang Z J, Yang Z P, Guo Q L, Li X 2009 Journal of Alloys and Compounds 478 813
[13] Liao J S, Qiu B, Wen H R, Chen J L, You W X 2009 Marerials Research Bulletin 44 1863
[14] Liu X R, Wang X J, Wang Z K 1989 Phys. Rev. B 39 10633
[15] Meng Q Y, Chen B J, Xu W, Zhao X X, Yang Y M, Di W H, Wang X J 2009 Spectroscopy and Spectral Analysis 29 151 (in Chinese) [孟庆裕、陈宝玖、许 武、赵晓霞、杨艳民、狄卫华、王晓君 2009 光谱学与光谱分析 29 151]
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