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SrAl2O4∶Eu2+,Dy3+长余辉发光材料的喷雾热解制备及其表征
Synthesis and Characterization of SrAl2O4∶Eu2+ ,Dy3+ Long Afterglow Luminescence Materials by Spray Pyrolysis Process
- 发光学报 2011年32卷第8期 页码：766-772
- 作者机构：
1. 江西理工大学 材料与化学工程学院,江西 赣州,341000
2. 中南大学 化学化工学院,湖南 长沙,410083
3. 赣州有色冶金研究所,江西 赣州,341000
- 作者简介：
- 基金信息：
DOI：10.3788/fgxb20113208.0766
中图分类号： O482.31收稿日期：2011-03-27，
修回日期：2011-05-23，
网络出版日期：2011-08-22，
纸质出版日期：2011-08-22
- 稿件说明：
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王林生, 李敏, 赖华生, 文小强, 周健, 黄可龙. SrAl<sub>2</sub>O<sub>4</sub>∶Eu<sup>2+</sup>,Dy<sup>3+</sup>长余辉发光材料的喷雾热解制备及其表征[J]. 发光学报, 2011,32(8): 766-772
WANG Lin-sheng, LI Min, LAI Hua-sheng, WEN Xiao-qiang, ZHOU Jian, HUANG Ke-long. Synthesis and Characterization of SrAl<sub>2</sub>O<sub>4</sub>∶Eu<sup>2+</sup> ,Dy<sup>3+</sup> Long Afterglow Luminescence Materials by Spray Pyrolysis Process[J]. Chinese Journal of Luminescence, 2011,32(8): 766-772
王林生, 李敏, 赖华生, 文小强, 周健, 黄可龙. SrAl<sub>2</sub>O<sub>4</sub>∶Eu<sup>2+</sup>,Dy<sup>3+</sup>长余辉发光材料的喷雾热解制备及其表征[J]. 发光学报, 2011,32(8): 766-772 DOI： 10.3788/fgxb20113208.0766.
WANG Lin-sheng, LI Min, LAI Hua-sheng, WEN Xiao-qiang, ZHOU Jian, HUANG Ke-long. Synthesis and Characterization of SrAl<sub>2</sub>O<sub>4</sub>∶Eu<sup>2+</sup> ,Dy<sup>3+</sup> Long Afterglow Luminescence Materials by Spray Pyrolysis Process[J]. Chinese Journal of Luminescence, 2011,32(8): 766-772 DOI： 10.3788/fgxb20113208.0766.
摘要
采用喷雾热解两段法制备了SrAl
2
O
4
∶Eu
2+
Dy
3+
长余辉发光材料
并利用XRD、SEM、荧光长余辉亮度测试等方法分析了不同制备工艺条件下SrAl
2
O
4
∶Eu
2+
Dy
3+
发光材料的结构、形貌以及发光性能的变化。结果表明:采用喷雾热解两段法可制备出球形SrAl
2
O
4
∶Eu
2+
Dy
3+
长余辉发光材料
SrAl
2
O
4
∶Eu
2+
Dy
3+
的晶体结构与-SrAl
2
O
4
磷石英晶体结构相同。热解温度、还原温度、添加剂对产物的形貌、粒度分布、发光性能有较大影响。较之高温固相法
喷雾热解法制备的SrAl
2
O
4
∶Eu
2+
Dy
3+
具有发光性能好、形貌好、粒度分布窄等优点。
Abstract
The long afterglow luminescence materials of SrAl
2
O
4
∶Eu
2+
Dy
3+
was synthesized by a two-step spray pyrolysis process. Structure
morphology and luminous performances of SrAl
2
O
4
∶Eu
2+
Dy
3+
were investigated via the technologies of X-ray diffraction
field emission scanning electron microscopy
emission spectra and so on. The results showed that the higher pyrolysis temperature was conductive to formation of SrAl
2
O
4
∶Eu
2+
Dy
3+
spherical particle. The initial brightness
afterglow time
emission peak intensity of SrAl
2
O
4
∶Eu
2+
Dy
3+
increased with temperature and reached the maximum at 850 ℃.The emission spectrum shape of SrAl
2
O
4
∶Eu
2+
Dy
3+
that prepared by different pyrolysis temperatures are similar
with wideband peaked at about 512 nm
corresponding to the emission caused by the typical Eu
2+
5d 4f (4f
6
5d configuration to the ground state 4f
7
) transition
it is just difference in relative strength and the peak emission spectrum does not change. The afterglow time was prolonged by adding appropriate amount polyethylene glycol
and it was the longest when the dosage was 0.03 mol/L. Adding citric acid reduced the afterglow time of luminescent materials
and the afterglow performance declined slowly when the content changes from 0.1 g/L to 0.3 g/L. Additivesis was beneficial to formation of luminescent global particles. The liquid drop of disperse and spray showed a better effect when the polymeras can be synthesized by the esterification of polyethylene glycol and citric acid at high temperature. With increasing the reduction temperature
the afterglow properties of SrAl
2
O
4
∶Eu
2+
Dy
3+
prepared via spray pyrolysis method increased firstly and then decreased. The best reduction temperature was 1 250 ℃ which was distinct advantage over by solid state method. The SrAl
2
O
4
∶Eu
2+
Dy
3+
prepared by spray pyrolysis belongs to the
ɑ
-SrAl
2
O
4
phosphor crystal structure and it do not affect the crystal structure of SrAl
2
O
4
when a small amount of Eu and Dy introduced into the mixture. The emission spectrum shape of SrAl
2
O
4
∶Eu
2+
Dy
3+
of obtained by two methods are similar
both wideband spectrum and the peaks corresponding to the typical 4f5d transition of Eu
2+
were observed at 512
513
516
518 nm
respectively. With the rising of reduction temperature
the emission in the main peak all showed an obvious red shift.The results showed that the synthesis temperature used spray pyrolysis method can be significantly reduced
and the sample received more regular morphology
smaller particle size
narrower particle size distribution and more excellent luminescent properties
comparing with that prepared by solid state method.
关键词
Keywords
references
Chen Yongjie, Sun Yanbin, Qiu Guanming, et al. Studies on superlong afterglow luminescence materials [J]. Chin. Rare Earths(稀土), 2002, 23 (4):50-53 (in Chinese).[2] Yamamoto H, Matsuzawa T. Mechanism of long phosphorescence of SrAl2O4∶Eu2+ , Dy3+and CaAl2O4∶Eu2+ , Nd3+ [J]. J. Lumin., 1997, 72-74 (97):287-289.[3] Sun Jiayue, Du Haiyan,Hu Wenxiang, et al. Solid Luminescence Materials [M]. Beijing: Chemical Industry Paress, 2003:565-578 (in Chinese).[4] Song Huajie. Study on Preparation and Luminous Performances of strontium aluminate . Hunan: Zhongnan School of Nationality, 2007.[5] Zhang Zhongtai, Zhang Junying. Inorganic Long Afterglow Luminescence Materials [M]. Beijing: Chemical Industry Paress, 2005:126-149 (in Chinese).[6] Xiao Zhiguo, Luo Xixian. Produces of Light-storing Materials [M]. Beijing: Chemical Industry Paress, 2005:99-189 (in Chinese).[7] Wang Guanghui, Liang Xiaoping, Gu Yufen. The influence of boric acid content on luminescent properties of SrAl2O4[J]. Spectroscopy and Spectral Analysis (光谱学与光谱分析), 2008, 28 (5):1020-1022 (in Chinese).[8] Hao Hongchen, Chen Bin, Zhu Jiang, et al. Long-persistent luminescence properties of SrAl2O4∶Eu2+ ,Dy3+ doped with Yb3+ and Er3+[J]. Chin. J. Lumin.(发光学报), 2011, 32 (4):319-324 (in Chinese).[9] Jorma Hls, Taneli Laamanen, Mika Lastusaari, et al.Electronic structure of the SrAl2O4∶Eu2+ persistent luminescence material [J]. J. Rare Earth, 2009, 27 (4):550-554.[10] Qiu Dong. Preparation and Property of Long-afterglow Luminescent Materials .Anhui:Hefei Polytechnic University, 2009.[11] Chen Xuehua, HuYihua, Wang Yinhai, et al. Valence-change of Eu and its effect on the luminescent properties of long afterglow phosphor SrAl2O4∶Eu2+ ,Dy3+ [J]. Chin. J. Lumin.(发光学报), 2009, 30 (1):40-46 (in Chinese).[12] Hu Guorong, Cao Yanbing, Deng Xinrong. Spherical (Y,Gd)BO3∶Eu phosphor particles for PDP synthesized by spray pyrolysis method [J]. New Chemical Materials (化工新型材料), 2008, 36 (1):80-81 (in Chinese).[13] Qi Faxin, Wang Haibo, Zhu Xianzhong.Spherical YAG∶Ce phosphor particles prepared by spray pyrolysis [J]. J. Rare Earth, 2005, 23 (4):397-400 (in Chinese).[14] Chen Wei.Synthesis by Spray-pyrolysis and Charaterization of Tricolor PDP Phosphors .Guangzhou: Zhongshan University, 2007.[15] Li Xueming, Li Wulin, Kong Lingfeng. Synthesis and luminance of YAG∶Ce phosphor by spray pyrolysis [J]. J. Chongqing University (Natural Science Edition)(重庆大学学报,自然科学版), 2007, 30 (3):113-115 (in Chinese).[16] Jing Yanjun, Wang Haibo, Huang Ruxi, et al. Red phosphor LiEu(SiO2)1/6W2O8 particles prepared by spray pyrolysis[J]. Chin. J. Lumin.(发光学报), 2007, 28 (5):715-719 (in Chinese).[17] Lu Hao, Liu Aimei, Xiong Pingfan, et al. Temperature impact on luminescence performances of long-lasting afterglow glass [J]. Chin. J. Lumin.(发光学报), 2009, 30 (3):554-558 (in Chinese).[18] Liao Feng, Wang Yinhai, Hu Yihua, et al. Preparation and luminescence properties of Sr1-xBaxAl2O4∶Eu2+ ,Dy3+ [J]. Chin. J. Lumin.(发光学报), 2009, 30 (4):399-404 (in Chinese).[19] Zhou Chuanchang, Lu Zhongyuan, Dai Yatang. Preparation of ultra-fine SrAl2O4∶Eu2+ ,Dy3+ by the coprecipitation synthesis technique [J]. Rare Metal (稀有金属), 2005, 29 (1):20-24 (in Chinese).
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