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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

Bridgman法生长的PWO晶体的发光特性和透光特性

张明荣; 胡关钦; 李培俊; 徐力; 殷之文   

  1. 中国科学院上海硅酸盐研究所; 上海200050
  • 收稿日期:1997-06-10 修回日期:1997-08-28 出版日期:1998-06-20 网络出版日期:1998-06-20

Luminescence and Transmittance Properties of PbWO4 Crystals Grown by Modified Bridgman Method

ZHANG Ming-Rong; HU Guan-Qin; LI Pei-Jun; XU Li; YIN Zhi-Wen   

  1. Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China
  • Received:1997-06-10 Revised:1997-08-28 Published:1998-06-20 Online:1998-06-20

PDF (PC)

925

被引次数

14

摘要： 本文采用改进的Bridgman法，以纯度不低于99．99％的PbO和WO3为原料，生长出无色透明的、大尺寸的PbWO4（PWO）晶体，研究了晶体沿生长方向不同部位的透射光谱及X射线激发的发射光谱特性．发现改进的Bridgman法生长的PWO晶体具有较好的发光均匀性和透光均匀性，其原因主要是改进的Bridgman法采用密封的坩埚，有效地抑制了组份（PbO和WO3）的挥发.

关键词: Bridgman法生长, PbWO4晶体, 发光特性, 透光特性

Abstract: Large size PbWO4 single crystals were grown from PbO and WO3 powders of 99.99% purityby modified Bridgmajn method (MBM). The transmittance and steady-state X-ray excited emissionspctra of the grown crystals were studied. The results show good homogeneity in transmittanceand luminescence along the longitudinal direction of the crystals, which can be mainly attributedto the effective inhibition of vaporization of the constituents by the sealing of crucibles in MBM.

Key words: crystal growth, bridgman method, PbWO4 crystal, luminescence properties, transmittance properties

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