High photovoltages of CuFeO2 based p-type dye-sensitized solar cells
High photovoltages of CuFeO2 based p-type dye-sensitized solar cells
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CuFeO2基p型染料敏化太阳能电池的高光电压
DOI：
10.1016/j.jallcom.2016.06.231
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发表时间：
2016-11
影响因子：
6.2
通讯作者：
Lu Wang
中科院分区：
文献类型：
--
作者：
Jingzhen Shao;Ruhua Tao;Chao Song;Lu Wang
通过自燃烧甘氨酸硝酸盐工艺合成了比表面积为6.5 m2 g − 1的纯相CuFeO 2粉末。该粉体呈珊瑚状网络结构，壁厚约100 nm，孔径从几十纳米到几百纳米不等。CuFeO 2粉末首次被用作p型染料敏化太阳能电池的光电阴极，香豆素343作为敏化剂，碘/三碘（I-/I3-）作为氧化还原介体。初步优化了CuFeO 2光电阴极薄膜的烧结工艺和厚度。优化后的CuFeO 2基太阳能电池在1 Sun AM 1.5光照下的最佳开路电压为365 mV。与在类似的LiI/I2电解质溶液中测试的基于NiO或其他铜铁矿的p-DSSC相比，该记录显著较高。这主要是由于更深的价带（0.69 Vvs. NHE）比常用的NiO（0.54 Vvs. NHE）。
Pure phase CuFeO2powders with specific surface area of 6.5 m2g−1were synthesized by a self-combustion glycine nitrate process. The powders show a coral-like network structure with a wall thickness of about 100 nm and pore sizes ranging from tens of nanometers to hundreds of nanometers in diameter. The CuFeO2powders were first applied as photocathodes for p-type dye-sensitized solar cells with coumarin 343 as sensitizer and iodide/triiodide (I−/I3−) as redox mediator. The sintering process and thickness of the CuFeO2photocathode films were roughly optimized. The optimized CuFeO2based solar cell has achieved the best open circuit voltage of 365 mV under 1 Sun AM 1.5 illumination. This record is significantly high in comparison to p-DSSCs based on NiO or other delafossites tested in the similar LiI/I2electrolyte solutions. This is mainly due to the much deeper valence band (0.69 Vvs. NHE) of CuFeO2than that of the commonly used NiO (0.54 Vvs. NHE).
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影响因子：
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通讯作者：
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