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首页> 外文期刊>RSC Advances >Non-stoichiometric Cu-In-S@ZnS nanoparticles produced in aqueous solutions as light harvesters for liquid-junction photoelectrochemical solar cells
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Non-stoichiometric Cu-In-S@ZnS nanoparticles produced in aqueous solutions as light harvesters for liquid-junction photoelectrochemical solar cells

机译：非化学计量的Cu-in-S @ ZnS纳米颗粒在水溶液中制备，作为用于液态结光电子化学太阳能电池的光收割机

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摘要

A direct "green" aqueous synthesis of mercapto acetate-stabilized copper indium sulfide (CIS) nanoparticles (NPs) and core/shell CIS@ZnS NPs of a varied composition under ambient conditions and a temperature lower than 100 degrees C is reported. The CIS@ZnS NPs can be anchored to the surface of nanocrystalline FTO/TiO2 films without additional purification or ligand exchange steps yielding visible-light-sensitive heterostructures ready for using as photoanodes in the liquid-junction solar cells. The highest photoelectrochemical activity in a three-electrode cell was demonstrated by a TiO2/CIS@ZnS heterostructure with atomic Cu : In : S and Zn : Cu ratios of 1 : 5 : 10 and 1 : 1. The optimized TiO2/CIS@ ZnS photoanodes were tested in two-electrode solar cells with aqueous polysulfide electrolyte and TiO2/Cu2S heterostructures produced by a photo-assisted method as counter-electrodes. Under illumination by a 30 mW cm(-2) xenon lamp, the optimized cells showed the average light conversion efficiency of 8.15%, the average open-circuit voltage of -0.6 V and the average fill factor of 0.42. The cells revealed excellent stability and reproducibility of photoelectrochemical parameters with around one percent variation of the light conversion efficiency around an average value for six identical solar cells.
机译：据报道，直接的“绿色”水合成硫酸甲酸盐稳定的铜铟硫化物（顺式）纳米颗粒（NPS）和核心/壳CIS @ ZnS NP，在环境条件下和低于100℃的温度。 CIS @ ZnS NPS可以在没有额外的纯化或配体交换步骤的纳米晶FTO / TiO 2膜的表面上锚定，得到可见光敏感性的异质结构，其可用于在液态结太阳能电池中用作光阳极。用原子Cu的TiO2 / CIS ZnS异质结构证明了三电极电池中的最高光电化学活性：：S和Zn：Cu比为1：5：10和1：1。优化的TiO2 / CIS @ Zns将光阳极在双电极太阳能电池中进行测试，该水硫化物电解质和TiO2 / Cu 2 S异质结构通过光辅助方法作为反电极产生。通过30mW cm（-2）氙灯的照明，优化的细胞显示平均光转化效率为8.15％，平均开路电压为-0.6V，平均填充因子为0.42。该细胞揭示了光电化学参数的优异稳定性和再现性，其围绕六个相同太阳能电池的平均值左右的光转换效率的一个百分率变化。

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  • 来源
    《RSC Advances》 |2016年第102期|共13页
  • 作者

    Raevskaya Alexandra; Rosovik Oksana; Kozytskiy Andriy; Stroyuk Oleksandr; Dzhagan Volodymyr; Zahn Dietrich R. T.;

  • 作者单位

    Natl Acad Sci Ukraine LV Pysarzhevsky Inst Phys Chem Lab Organ Photovolta &

    Electrochem 31 Nauky Av UA-03028 Kiev Ukraine;

    Natl Acad Sci Ukraine LV Pysarzhevsky Inst Phys Chem Lab Organ Photovolta &

    Electrochem 31 Nauky Av UA-03028 Kiev Ukraine;

    Natl Acad Sci Ukraine LV Pysarzhevsky Inst Phys Chem Lab Organ Photovolta &

    Electrochem 31 Nauky Av UA-03028 Kiev Ukraine;

    Natl Acad Sci Ukraine LV Pysarzhevsky Inst Phys Chem Lab Organ Photovolta &

    Electrochem 31 Nauky Av UA-03028 Kiev Ukraine;

    Natl Acad Sci Ukraine VE Lashkaryov Inst Semicond Phys UA-03028 Kiev Ukraine;

    Tech Univ Chemnitz Semicond Phys D-09107 Chemnitz Germany;

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  • 正文语种 eng
  • 中图分类 化学;
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