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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Zn_2SnO_4-SnO_2 heteroj unction nanocomposites for dye-sensitized solar cells
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Zn_2SnO_4-SnO_2 heteroj unction nanocomposites for dye-sensitized solar cells

机译：用于染料敏化太阳能电池的Zn_2SnO_4-SnO_2异质结纳米复合材料

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摘要

Zn_2SnO_4-SnO_2 heterojunction nanocomposites (ZTO-SnO_2) with high mass amount of ZTO were synthesized by a two-step technique. The route involves firstly the synthesis of monodispersed ZnSn(OH)_6 nanocubes with a 50-60 nm edge length as precursors by simple coprecipitation of Na_2SnO_3-3H_2O and ZnCl_2 aqueous solution, assisted by ultrasonic treatment and then followed by calcination of the precursors at 800 °C under N_2 atmosphere. The as-synthesized nanoparticles were characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Heterojunction between ZTO and SnO_2 nanoparticle was confirmed by the electron energy loss spectroscopy (EELS) elemental mapping and high-resolution TEM (HRTEM).
机译：通过两步技术合成了具有大量ZTO的Zn_2SnO_4-SnO_2异质结纳米复合材料（ZTO-SnO_2）。该路线包括首先通过简单地共沉淀Na_2SnO_3-3H_2O和ZnCl_2水溶液，在超声处理的辅助下，合成边长为50-60 nm的单分散ZnSn（OH）_6纳米立方体作为前体，然后在800℃下煅烧在N_2气氛下为°C。所合成的纳米颗粒通过X射线衍射仪（XRD），扫描电子显微镜（SEM）和透射电子显微镜（TEM）表征。电子能量损失谱（EELS）元素图谱和高分辨率TEM（HRTEM）证实了ZTO和SnO_2纳米颗粒之间的异质结。

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