Selective Synthesis of FeS and FeS2 Nanosheet Films on Iron Substrates as Novel Photocathodes for Tandem Dye-Sensitized Solar Cells
Selective Synthesis of FeS and FeS2 Nanosheet Films on Iron Substrates as Novel Photocathodes for Tandem Dye-Sensitized Solar Cells
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DOI：
10.1021/jp803726c
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发表时间：
2008-07
影响因子：
3.7
通讯作者：
Yan Hu;Zhi Zheng;Huimin Jia;Yiwen Tang;Lizhi Zhang
中科院分区：
文献类型：
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作者：
Yan Hu;Zhi Zheng;Huimin Jia;Yiwen Tang;Lizhi Zhang
通过一步水热法，在有或无肼存在的条件下，将铁箔和硫粉分别在铁基体上选择性地合成了FeS和FeS 2纳米片薄膜。采用X射线衍射（XRD）、扫描电子显微镜（SEM）和透射电子显微镜（TEM）对所得FeSx（x = 1，2）纳米片薄膜进行了表征，并将其用作新型光电阴极，与染料敏化TiO 2纳米棒薄膜作为相应的光电阳极的叠层太阳能电池中。研究了叠层染料敏化太阳能电池的光伏特性。我们发现，在串联染料敏化太阳能电池中，FeS纳米片薄膜光电阴极的性能优于FeS 2光电阴极。在FeS纳米片膜光电阴极的情况下，在100 mW/cm 2的照度下获得2.53mA/cm 2的短路光电流（Isc）、0.60V的开路光电压（Voc）、0.31的填充因子（FF）和1.32%的转换效率（η）。这项研究表明...
FeS and FeS2 nanosheet films were selectively synthesized on iron substrates through one-step hydrothermal treatment of iron foil and sulfur powder in the presence or absence of hydrazine. The resulting FeSx (x = 1, 2) nanosheet films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) and used as novel photocathodes in tandem solar cells with dye-sensitized TiO2 nanorod films as the corresponding photoanode. The photovoltaic properties of the tandem dye-sensitized solar cells were carefully studied. We found that the performance of the FeS nanosheet film photocathode was better than that of the FeS2 one in the tandem dye-sensitized solar cells. In the case of the FeS nanosheet film photocathode, a short circuit photocurrent (Isc) of 2.53 mA/cm2, an open circuit photovoltage (Voc) of 0.60 V, a fill factor (FF) of 0.31, and conversion efficiency (η) of 1.32% were obtained under an illumination of 100 mW/cm2. This study suggests that ...