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Effect of sodium chloride on the electrochemistry activity of electrodeposited CdTe films with various morphologies

机译：氯化钠对各种形态电沉积Cdte膜电化学活性的影响

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摘要

In this paper, a cadmium telluride (CdTe) film is successfully synthesized on Ni foils via a simple electrochemical deposition method. Especially, with sodium chloride (NaCl) being added into the electrolyte directly, an interesting morphology evolution from spherical CdTe film to rod-shaped CdTe film, then to clustered CdTe film, and finally to double-layered film is observed with the increase of the NaCl concentration. The products are characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), UV-vis spectroscopy, and photoelectrochemical measurements. It is found that the amount of NaCl played an important role in determining the morphology of CdTe film. The possible growth mechanism is discussed as well. Photoelectrochemical measurements reveal that the morphology of CdTe film can affect their photoelectrical properties greatly, and the uniform CdTe nanorod arrays prepared at 0.05 mol L-1 NaCl exhibit excellent photoelectrical properties, which is meaningful to the investigation of CdTe solar cells. According to the experiments, this simple but effective method can also be extended to the control of the growth of other nanostructures.
机译：本文通过简单的电化学沉积方法在Ni箔上成功地合成了碲化镉（CdTe）膜。特别是，用氯化钠（NaCl）直接加入电解质中，从球形CdTe膜到棒状CdTe膜的有趣形态演化，然后对聚类的CdTe膜进行，并且最终观察到以双层薄膜的增加而观察到NaCl浓度。该产品的特征在于X射线衍射（XRD），现场排放扫描电子显微镜（FESEM），透射电子显微镜（TEM），UV-Vis光谱和光电化学测量。发现NaCl的量在确定CdTe膜的形态方面发挥了重要作用。也讨论了可能的增长机制。光电化学测量表明，CdTe膜的形态大大影响其光电性能，并且在0.05mol L-1 NaCl制备的均匀CdTe纳米棒阵列表现出优异的光电性能，这对CdTe太阳能电池的研究有意义。根据实验，这种简单但有效的方法也可以扩展到对其他纳米结构的生长的控制。

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  • 来源
    《RSC Advances》 |2015年第54期|共7页
  • 作者

    Wang Jun; Li Qian; Mu Yannan; Zhou Xiaoming; Yang Lihua; Lv Pin; Su Shi; Niu Jiasheng; Fu Wuyou; Yang Haibin;

  • 作者单位

    Jilin Univ State Key Lab Superhard Mat Changchun 130012 Peoples R China;

    Chinese Acad Sci Inst Phys Beijing Natl Lab Condensed Matter Phys Beijing 100190 Peoples R China;

    Jilin Univ State Key Lab Superhard Mat Changchun 130012 Peoples R China;

    Beihua Univ Coll Phys Jilin 132013 Peoples R China;

    Jilin Univ Coll Elect Sci &

    Engn Changchun 130012 Peoples R China;

    Jilin Univ State Key Lab Superhard Mat Changchun 130012 Peoples R China;

    Jilin Univ State Key Lab Superhard Mat Changchun 130012 Peoples R China;

    Jilin Univ State Key Lab Superhard Mat Changchun 130012 Peoples R China;

    Jilin Univ State Key Lab Superhard Mat Changchun 130012 Peoples R China;

    Jilin Univ State Key Lab Superhard Mat Changchun 130012 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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