Modified Two-Zone Vapor Transporting Method for PbI2 Polycrystal Synthesis

作者：Zhao Xin^*; Jin Ying Rong; He Yi

来源：Chinese Journal of Inorganic Chemistry, 2011, 27(2): 298-302.

• PbI2
• polycrystal synthesis
• vapor-transporting
• crystal growth

High-purity and single-phase PbI2 polycrystals were synthesized by a modified two-zone vapor transporting method (MTVTM). The method is easy in operation and can effectively prevent the ampoule from exploding. XRD results indicate that the structure of PbI2 crystal is 2H with hexagonal space group of P (3) over bar ml, the lattice constants of a and c are 0.456 0 nm and 0.697 9 nm, respectively. With the PbI2 polycrystal obtained in this work, an integral and high resistivity (about 10(13) Omega . cm magnitude) PbI2 single crystal was obtained by Vertical Bridgman method(VBM).

• 出版日期2011-2-10
• 单位中国民用航空飞行学院; 西华大学