Abstract We analyzed bulk CuIn3Se5 alloys via transmission electron microscopy (TEM). The high-resolution TEM micrographs showed many twinning bands and doublet periodicity of the (0 0 2) lattice planes and corresponding fast Fourier transform patterns revealed the superstructure reflections. The selected area electron diffraction pattern showed the nearly five-fold rotation diffraction spots, which resulted from the four-fold rotation twinning at one point and other twinning bands. The TEM results indicated the CuIn3Se5 alloy deformed by hot press had many multiple-twinned crystallites as well as a high density of twinning in the {1 1 2} planes.

中文翻译：

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通过热变形在块状 CuIn3Se5 中形成五重孪晶电子衍射图和孪晶带

摘要 我们通过透射电子显微镜 (TEM) 分析了块状 CuIn3Se5 合金。高分辨率 TEM 显微照片显示 (0 0 2) 晶面的许多孪晶带和双峰周期性，相应的快速傅立叶变换模式揭示了超结构反射。选区电子衍射图显示近五倍旋转衍射斑点，这是由一点四倍旋转孪晶和其他孪晶带引起的。TEM 结果表明，热压变形的 CuIn3Se5 合金具有许多多重孪晶微晶以及在 {1 1 2} 面中的高密度孪晶。