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首页> 外文期刊>Acta Crystallographica, Section B. Structural Science >X-ray resonant single-crystal diffraction technique, a powerful tool to investigate the kesterite structure of the photovoltaic Cu_2ZnSnS_4 compound
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X-ray resonant single-crystal diffraction technique, a powerful tool to investigate the kesterite structure of the photovoltaic Cu_2ZnSnS_4 compound

机译:X射线共振单晶衍射技术,研究光伏Cu_2ZnSnS_4化合物的硅藻土结构的有力工具

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摘要

Cu/Zn disorder in the kesterite Cu_2ZnSnS_4 derivatives used for thin film based solar cells is an important issue for photovoltaic performances. Unfortunately, Cu and Zn cannot be distinguished by conventional laboratory X-ray diffraction. This paper reports on a resonant diffraction investigation of a Cu_2ZnSnS_4 single crystal from a quenched powdered sample. The full disorder of Cu and Zn in the z = 1/4 atomic plane is shown. The structure, namely disordered kesterite, is then described in the I-442m space group.
机译:用于薄膜基太阳能电池的硅藻土中的Cu / ZnSnS_4衍生物中的Cu / Zn无序是光伏性能的重要问题。不幸的是,铜和锌不能通过常规的实验室X射线衍射来区分。本文报道了淬火粉末样品中Cu_2ZnSnS_4单晶的共振衍射研究。显示了z = 1/4原子平面中Cu和Zn的完全无序。然后,在I-442m空间群中描述了该结构,即无序的锂霞石。

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