纳米长余辉发光材料CaTiO<SUB>3</SUB>∶Pr的制备及表征

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摘要：以无机盐为原料，以明胶为分散介质，采用凝胶网格沉淀法制备了掺镨的钛酸钙纳米颗粒。通过热重和差热分析，讨论了CaTiO₃∶Pr共沉淀及锻烧过程中的反应机理。用透射电子显微镜观测到纳米颗粒呈类球形，粒径为100 nm左右，分散性良好。利用荧光光谱分析仪对纳米CaTiO₃∶Pr粉体的发光性能进行了表征。光谱数据表明： 1 100 ℃时，煅烧1 h发光强度最大，其发光特性与传统的高温固相法相似，但烧结温度可以降低200 ℃。系统地研究了制备纳米CaTiO₃∶Pr长余辉发光粉体的工艺条件及其影响因素，给出了最佳的制备条件。文章报道的制备方法所需装置简单，实验成本低。

关键词：凝胶网格沉淀法;CaTiO₃∶Pr;长余辉纳米发光体

Abstract：CaTiO₃∶Pr nanophosphors were prepared with a gel-network precipitation technique using cheap inorganic precursors. The samples,being well dispersed and sphere-like with an average diameter of 100 nm,were observed with transmission electron microscope (TEM). The mechanism of coprecipitation and crystallization was discussed briefly based on TG-DTA and the X-ray diffractometer (XRD) results. The luminescent properties were investigated by the fluorescence spectrophotometer. The conditions of the preparation process were also studied systematically and the optimal conditions were concluded. The results show that the products with strongest luminescence intensity could be prepared at 1 100 ℃ for one hour,and the luminescent features of samples synthesized by the gel-network precipitation technique are similar to those by solid-state reaction,while the calcining temperature is reduced about 200 ℃. In conclusion,uniform long-afterglow nanophosphors CaTiO₃∶Pr were successfully synthesized with simple apparatus at low cost.

Key words：Gel-network precipitation;CaTiO₃: Pr;Long-afterglow nanophosphors

收稿日期: 2006-04-26 修订日期: 2006-08-02

中图分类号:

O482.3

通讯作者: 孟建新 E-mail: tmjx@jnu.edu.cn

引用本文:

綦艳,孟建新^*,时朝璞,张文文. 纳米长余辉发光材料CaTiO₃∶Pr的制备及表征[J]. 光谱学与光谱分析, 2007, 27(07): 1287-1290.
QI Yan,MENG Jian-xin^*,SHI Chao-pu,ZHANG Wen-wen. Preparation and Characterization of Long-Afterglow Nanophosphors CaTiO₃∶Pr. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(07): 1287-1290.

链接本文:

https://www.gpxygpfx.com/CN/Y2007/V27/I07/1287

[1] SUN Jia-yue,XIA Zhi-guo,DU Hai-yan(孙家跃，夏志国，杜海燕). Journal of Chinese Rare Earth Society(中国稀土学报),2005,23(3): 257.
[2] REN Xin-guang,MENG Ji-wu(任新光，孟继武). Spectroscopy and Spectral Analysis(光谱学与光谱分析),2000,20(3): 268.
[3] ZHANG Xi-yan,MI Xiao-yun,XIAO Zhi-yi,et al(张希艳，米晓云，肖志义，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析),2005,25(11): 1756.
[4] SU Qiang,LI Cheng-yu,LU Yue-hua. CN Patent,02117958.1.
[5] LI Zhi-xia,ZHANG Yu-qi,LIAO Liang(李治霞，张玉奇，廖亮). Journal of Chongqing University(重庆大学学报),2004,27(7): 53.
[6] CHEN Hou-tong,YIN Min,LIAN Rui,et al(陈候通，尹民，廉锐，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析),2001,21(2): 151.
[7] YANG Zhi-ping,WANG Wen-jie,GUO Zhi,et al(杨志平，王文杰，郭智，等). Journal of Optoelectronics Laser(光电子·激光),2004,15(3): 332.
[8] YANG Zhi-ping,GUO Zhi,WANG Wen-jie,et al(杨志平，郭智，王文杰，等). Journal of Functional Materials and Devices(功能材料与器件学报),2003,9(4): 473.
[9] Diallo P T,Boutinaud P,Mahiou R,et al. Phys. Status. Solidi.(a),1997,160(1): 255.
[10] ZHANG Xi-yan,CHENG Guang,MI Xiao-yun,et al. Journal of Rare Earth,2004,22(1): 137.
[11] YANG Zhi-ping,GUO Sheng-chao,GUO Zhi,et al(杨志平，郭胜超，郭智，等). Journal of Chinese Rare Earth Society(中国稀土学报),2002,20: 42.
[12] LI Xiu-ying,LIAN Shi-xun,ZHU Ai-ling(李秀英，廉世勋，朱爱玲). Journal of Natural Science of Hunan Normal University(湖南师范大学自然科学学报),2005,28(1): 48.
[13] Toki H,Sato Y,Tamura K,et al. Proceeding of the Third International Display Workshop,2: 519.
[14] Okamoto S,Kobayashi,Yamamoto. J. Appl. Phys.,1999,86: 5594.
[15] TANG Jin-feng,YU Xi-bin,YANG Liang-zhun,et al. Materials Letters,2006,60: 326.
[16] Eric Pind,Philippe Boutinaud,Genevieve Bertrand，et al. J. Alloys Comp.,2004,374: 202.
[17] LIU Li-min,ZENG Li-hua,LIAN Shi-xun,et al(刘利民，曾立华，廉世勋，等). Hunan Nonferrous Metals(湖南有色金属),1998,14(5): 45.
[18] Diallo P T,Jeanlouis K,Boutinaud P,et al. J. Alloys Comp.,2001,323/324: 218-222.
[19] Redfern S A T. J. Phys. Condens. Matter,1996,8: 8267.
[20] Ivana Radosavljevic Evans,Judith A K Howard,Tatiana Sreckovic,et al. Materials Research Bulletin,2003,38: 1203.
[21] Eric Pinel,Philippe Boutinaud,et al. J. Alloys Comp.,2004,374: 202.
[22] Vance E R,Day R A,Zhang Z,et al. J. Solid State Chem.,1996,124: 72.