Disordered cubic perovskite structure of CH3NH3PbX3 (X = Cl, Br, I)

被引:0
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作者
Mashiyama, H [1 ]
Kurihara, Y
Azetsu, T
机构
[1] Yamaguchi Univ, Fac Sci, Dept Phys, Yamaguchi 753, Japan
[2] Yamaguchi Univ, Fac Home Econ, Yamaguchi 753, Japan
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中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Cubic perovskite structures of CH3NH3PbX3 (X=Cl, Br, I) were investigated by X-ray diffraction. Least-squares calculations revealed that the halogen ions and the methylammonium ion are in disorder. The former ions take four positions near the face centered site of the cubic cell. The C-N axis of the latter ion seems to point preferably twelve directions which coincides with the crystallographic C-2 axis.
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页码:S156 / S158
页数:3
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