Journal of Inorganic Materials ›› 2015, Vol. 30 ›› Issue (2): 135-140.DOI: 10.15541/jim20140278

• Orginal Article • Previous Articles     Next Articles

Growth and Characterization of Er3+-doped Relaxor-based Ferroelectric Crystal PMNT

XIANG Jun-Tao1, DU Peng2, LUO Lai-Hui2, FANG Yi-Quan1, ZHAO Xue-Yang1, HU Xu-Bo1, CHEN Hong-Bing1   

  1. (1. State Key Base of Functional Material & Its Preparation Science, Institute of Materials Science & Engineering, Ningbo University, Ningbo 315211,China; 2. Physics Department, Faculty of Science, Ningbo University, Ningbo 315211, China)
  • Received:2014-05-28 Revised:2014-07-17 Online:2015-02-20 Published:2015-01-27
  • About author:XIANG Jun-Tao. E-mail: junot@sina.com
  • Supported by:
    Key Science and Technology Program of Zhejiang Province, China (2009C11144);National Natural Science Foundation of China (61378068);K.C.Wong Magna Fund in Ningbo University;Zhejiang Innovation Team of Technology and Application for Electronic Devices of Piezoelectric Frequency (2009R50025);Ningbo Innovation Team of Opto-electronic Functional Materials and Devices (2009B21007)

Abstract:

According to the molar ratio of 0.71Pb(Mg1/3Nb2/3)O3-0.26PbTiO3-0.03Pb(Er1/2Nb1/2)O3, Er3+-doped PMNT polycrystalline material was prepared by two-step solid-state synthesis at elevated temperature. Er3+-doped PMNT relaxor-based ferroelectric crystal with size of φ25 mm × 100 mm was grown from the stoichiometric melts by vertical Bridgman method. In the ferroelectric crystal with perovskite structure, Er3+ ions were doped into the crystal lattice via one composition of the ternary solid solution compound. The dielectric, piezoelectric and ferroelectric properties and up-conversion emission performance of Er3+-doped PMNT crystal wafers were investigated systematically. It is verified that Er3+-doped PMNT crystal presents the similar electrical properties to those of undoped PMNT crystal. Under the excitation of 980 nm, the crystal also exhibits a strong up-conversion fluorescence emission characteristic to Er3+ ions doped in the medium, and the emission intensity will be enhanced after being poled.

Key words: Er3+-doped PMNT crystal, crystal growth, vertical Bridgman method, electrical properties, up-conversion emission

CLC Number: