Abstract:Samples of Y2O3∶1%Er were prepared by coprecipitation method and the pH value of precipitant ammonium bicarbonate was adjusted by ammonia. Results of Fourier transform infrared spectra (FTIR) and elemental analysis showed that the chemical construction of precursors at pH range of 8.0~9.5 had little change. By X-ray fluorescence spectrometer (XRF) and scanning electron microscope (SEM) analysis, it was found that the pH value of precipitant had a significant impact on the content of erbium in precursor and it can influence particle size as well as its distribution of the products, both of which had important effects on the luminescent properties of the products.
[1] Venkatachalam N, Saito Y, Soga K. Journal of American Ceramic Society, 2009, 92(5): 1006. [2] Eilers H. Journal of Alloys and Compounds, 2009, 474(1-2): 569. [3] Martín-Rodríguez R, Valiente R, Pesquera C, et al. Journal of Luminescence, 2009, 129(9): 1109. [4] Fang L Shuang, et al. Optics Express, 2010, 18(3): 2309. [5] Sharma P K, Jilavi M H, Varadan V K, et al. Journal of Physics and Chemistry of Solids, 2002, 63(1): 171. [6] Muresan L, Popovici E J, Grecu R, et al. Journal of Alloys and Compounds, 2009, 471(1-2): 421. [7] Wu Y, Li J, Pan Y, et al. Ceramics International, 2009, 35(1): 25. [8] Chen Q, Shi Y, An L, et al. Journal of American Ceramic Society, 2006, 89(6): 2038. [9] Saito N, Matsuda S I, Ikegami T. Journal of American Ceramic Society, 1998, 81(8): 2023. [10] HUANG Chun-hui(黄春晖). Rare Earth Coordination Chemistry(稀土配位化学). Beijing: Science Press (北京: 科学出版社), 1997. 25. [11] SU Qiang(苏 锵). Chemistry of Rare Earths(稀土化学). Zhengzhou: Henan Science and Technology Press(郑州: 河南科学技术出版社), 1993. 49. [12] Tanner P A, SUN Waiyin. Journal of Materials Science, 2001, 36(9): 2253.