One dimensional CuInS2–ZnS heterostructured nanomaterials as low-cost and high-performance counter electrodes of dye-sensitized solar cells
One dimensional CuInS2–ZnS heterostructured nanomaterials as low-cost and high-performance counter electrodes of dye-sensitized solar cells
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DOI：
10.1039/c3ee24176a
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发表时间：
2013-02
影响因子：
32.5
通讯作者：
Luoxin Yi;Yuanyuan Liu;Nailiang Yang;Z. Tang;Huijun Zhao;G. Ma;Z. Su;Dan Wang
中科院分区：
文献类型：
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作者：
Luoxin Yi;Yuanyuan Liu;Nailiang Yang;Z. Tang;Huijun Zhao;G. Ma;Z. Su;Dan Wang
采用种子辅助合成法合成了纤锌矿CuInS2-ZnS异质结构纳米棒。Cu1.94S-ZnS异质结构纳米棒通过与铟离子反应，将硫化铜转化为纤锌矿CuInS2。通过改变In的添加浓度，CuInS2-ZnS异质结构纳米棒的形状可以从燃烧的手电筒状调整到更长的棒状。在相同的器件结构下，使用这些异质结构纳米晶作为对电极的染料敏化太阳能电池的功率转换效率(7.5%)高于用传统铂电极制成的染料敏化太阳能电池的功率转换效率(7.1%)。
Wurtzite CuInS2-ZnS heterostructured nanorods are synthesized via a seed-assisted synthetic route. Cu1.94S-ZnS heterostructured nanorods are transformed into CuInS2-ZnS by reacting with indium ions to convert copper sulfide to wurtzite CuInS2. The shapes of the CuInS2-ZnS heterostructured nanorods can be tuned from burning torch-like to longer rod-like by varying the concentration of added indium. Dye-sensitized solar cells (DSSCs) using these heterostructured nanocrystals as counter electrodes had a power conversion efficiency (7.5%) superior to DSSCs made with conventional platinum electrode (7.1%) under the same device configuration.