phosphors was fabricated by solid reaction method. The influences of sintered temperature and Sm
3+
content on the luminescence properties of Zn
2
SiO
4
(ZnB
2
O
4
) ∶ Mn
2+
Sm
3+
phosphors were studied. Powder structure and luminescence properties were characterized by means of XRD
excitation and emission spectra. The experimental results indicate that Zn
2
SiO
4
(ZnB
2
O
4
) ∶ Mn
2+
Sm
3+
has two excitation peaks at 220 nm and 250 nm
the luminescence intensity is the largest when the sintered temperature is at 950 ℃ in reducing atmosphere
and the emission peaks at 521 nm. The ZnB
2
O
4
as a part of host produced in the reaction can improve the luminescence intensity. At 950 ℃
there are most ZnB
2
O
4
reaction products
meanwhile
ZnB
2
O
4
has the best crystalline properties. With the Sm
3+
content increased
the phase is not changed
however
to a large extent
the luminescence intensity can be improved. When the Sm
3+
mole fraction is 8%
the intensity is the most and 5 times stronger than that for 4% Sm
3+
. With the increasing of Sm
3+
mole fraction
the luminescence emission peak has blue-shift from 540 nm to 521 nm.
关键词
Keywords
references
Seoa K I, Parka J H, Kima J S, et al. Highly efficient transparent Zn2SiO4 ∶ Mn2+ phosphor film on quartz glass [J]. J. Lumin., 2009, 129 (7):715-719.[2] Wang Lili, Liu Xiaoming, Hou Zhiyao, et al. Electrospinning synthesis and luminescence properties of one-dimensional Zn2SiO4 ∶ Mn2+ microfibers and microbelts [J]. J. Phys. Chem. C, 2008, 112 (48):18882-18888.[3] Diao Chienchen, Yang Chengfu. Synthesis of high efficiency Zn2SiO4 ∶ Mn2+ green phosphors using nano-particles [J]. Ceramics International, 2010, 36 (5):1653-1657.[4] Jiang Yaqi, Chen Jie, Xie Zhaoxiong, et al. Syntheses and optical properties of - and -Zn2SiO4 ∶ Mn nanoparticles by solvothermal method in ethylene glycol-water system [J]. Materials Chemistry and Physics, 2010, 120 (2-3):313-318.[5] Alavi S, Dexpert-Ghys J, Caussat B. High temperature annealing of micrometric Zn2SiO4 ∶ Mn phosphor powders in flui-dized bed [J]. Materials Research Bulletin, 2008, 43 (10):2751-2762.[6] Park J H, Park K W, Lee J B, et al. Excellent brightness with shortening lifetime of textured Zn2SiO4 ∶ Mn2+ phosphor films on quartz glass [J]. Jpn. J. Appl. Phys., 2010, 49 (4):42603-42607.[7] Lee D H, Wang W, Gutu T, et al. Biogenic silica based Zn2SiO4 ∶ Mn2+ and Y2SiO5 ∶ Eu3+ phosphor layers patterned by inkjet printing process [J]. J. Mater. Chem., 2008, 18 (31):3633-3635.[8] Xu G Q, Xu H T, Zheng Z X, et al. Preparation and characterization of Zn2SiO4 ∶ Mn phosphors with hydrothermal methods [J]. J. Lumin., 2010, 130 (10):1717-1720.[9] Hao Yan, Wang Yuhua, Zhang Zhanhui et al. Preparation and photoluminescence of Zn2SiO4 ∶ Mn2+ phosphor by combustion technique [J]. Chin. J. Lumin.(发光学报), 2004, 25 (4):441-445 (in Chinese).[10] You Hongpeng, Hong Guangyan, Zeng Xiaoqing. VUV and UV spectral properties of Zn2SiO4 ∶ Mn [J]. Chin. J. Lumin.(发光学报), 2000, 21 (4):349-352 (in Chinese).[11] Zhang Maisheng, Qi Jiaxiong, Yang Yansheng. Synthesis of photophosphor Zn2SiO4 ∶ Mn2+ , Er3+ with subnanometer size by sol-gel and microwave radiation methods [J]. Chin. J. Lumin.(发光学报), 1999, 20 (3):258-261 (in Chinese).[12] Lei Bingfu, L Yeliang, Ye Zeren et al. Long-lasting properties of Zn2SiO4 ∶ Mn, Cd phosphor [J]. Chin. J. Lumin. (发光学报), 2005, 26 (1):67-71 (in Chinese).[13] Li J, Zhang C X, Tang Q, et al. Synthesis, photoluminescence, thermoluminescence and dosimetry properties of novel phosphor Zn(BO2)2 ∶ Tb [J]. Journal of Physics and Chemistry of Solids, 2007, 68 (2):143-147.[14] Liu W R, Lin C C, Chiu Y C, et al. ZnB2O4 ∶ Bi3+ ,Eu3+:a highly efficient, red-emitting phosphor [J]. Optics Express, 2010, 18 (3):2946-2951.[15] Wu Qiaoli, Zhang Na, Yang Qianshe, et al. Effect of H3BO3 as flux on the properties of Zn2SiO4 ∶ Mn green phosphor [J]. J. Chin. Ceramic Society (硅酸盐学报), 2008, 36 (11):1660-1663 (in Chinese).[16] Parmar M C, Zhuang W D, Murthy K V R, et al. Role of SiO2 in Zn2SiO4 ∶ Mn2+ phosphor used in optoelectronic materials [J]. Indian J. of Engineering and Materials Sciences, 2009, 16 :185-187.[17] Zhang Q H, Wang J, Zhang M, et al.Luminescence properties of Sm3+ doped Bi2ZnB2O7 [J]. J. Rare Earths, 2006, 24 (4):392-395.[18] Neeraj S, Kijima N, Cheetham A K. Novel red phosphors for solid-state lighting:the system Bi<em>xLn1-xVO4 ∶ Eu3+ /Sm3+(Ln=Y, Gd) [J]. Solid State Commun. Phys., 2004, 131 (1):65-69.[19] Liu F S, Liu Q L, Liang J K, et al. Optical spectra of Ln3+(Nd3+ ,Sm3+ ,Dy3+ ,Ho3+ ,Er3+)-doped Y3GaO6[J].J. Lumin., 2005, 111 (1):61-68.