Journal of Inorganic Materials ›› 2016, Vol. 31 ›› Issue (10): 1147-1150.doi: 10.15541/jim20160061

• Orginal Article • Previous Articles     Next Articles

Synthesis, Growth and Scintillation Properties of Large Size Bi4Si3O12 Crystals

Jia-Yue XU1(), Jie WANG1, Wei CHEN1, Xue-Feng XIAO1,2, Bo-Bo YANG1, Zhan-Yong WANG1, Fei LI3, Hui-Dong XIE3   

  1. 1. Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
    2. Department of Fundamental Science, Beifang University of Nationalities, Yinchuan 750021, China
    3. School of Science, Xi’an University of Architecture and Technology, Xi’an 710055, China
  • Received:2016-01-27 Online:2016-10-20 Published:2016-09-23
  • Supported by:
    National Natural Science Foundation of China (51342007, 51572175)

Abstract:

Using stoichiometric Si(OC2H5)4 and Bi(NO3)3·5H2O as precursors and citric acid as solvent, polycrystalline Bi4Si3O12 (BSO) powders were synthesized by Sol-Gel method and sintered at high temperature. Batch production of 250 g powders was realized. Using as-synthesized BSO powders and <001>-oriented BSO seeds, BSO crystals were grown in the vertical Bridgman furnace. The crystallization behavior was discussed and high quality BSO crystal up to 30 mm × 30 mm × 210 mm was obtained. The scintillation characteristics of BSO single crystals were investigated. The energy resolution of the BSO crystal was 18.9% and the relative light yield of the crystal was 7.2% compared with CsI(Tl) at the same conditions.

Key words: Sol-Gel method, Bi4Si3O12 crystal, vertical Bridgman method, crystal growth, scintillation property

CLC Number: 

  • TQ174