Highly Conductive and Low Cost Ni-PET Flexible Substrate for Efficient Dye-Sensitized Solar Cells
Highly Conductive and Low Cost Ni-PET Flexible Substrate for Efficient Dye-Sensitized Solar Cells
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DOI：
10.1021/am406026n
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发表时间：
2014-04-23
影响因子：
9.5
通讯作者：
Feng, Shien-Ping
中科院分区：
文献类型：
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作者：
Su, Haijun;Zhang, Mingyang;Feng, Shien-Ping
采用电沉积和热压转移的方法制备了高导电性、柔性的镍-聚对苯二甲酸乙二酯（Ni-PET）基片。在染料敏化太阳能电池（DSSC）的对电极中证明了该有效性。研究了Ni-PET柔性基板上Ni膜的电沉积机理、微观结构和DSSC性能。首先在掺氟氧化锡（FTO）上电镀金属镍，制备出均匀连续的镍膜，然后以Surlyn为粘合剂，通过热压将镍膜完整地转移到PET上。所获得的柔性Ni-PET基板显示出0.18 Ω/平方的低薄层电阻和对于I-/I3-电解质的良好化学稳定性。基于该柔性电极基板的DSSC系统由于其高导电性而表现出7.89%的高光电能量转换效率，与普通ITO-PEN柔性基板相比提高了10.4%。这种方法为在塑料非导电衬底上制造各种金属铺平了一条简便且具有成本效益的途径，有利于器件朝着柔性和可卷曲方向发展。
The highly conductive and flexible nickel-polyethylene terephthalate (Ni-PET) substrate was prepared by a facile way including electrodeposition and hot-press transferring. The effectiveness was demonstrated in the counter electrode of dye-sensitized solar cells (DSSCs). The Ni film electrodeposition mechanism, microstructure, and DSSC performance for the Ni-PET flexible substrate were investigated. The uniform and continuous Ni film was first fabricated by electroplating metallic Ni on fluorine-doped tin oxide (FTO) and then intactly transferred onto PET via hot-pressing using Surlyn as the joint adhesive. The obtained flexible Ni-PET substrate shows low sheet resistance of 0.18 Omega/square and good chemical stability for the I-/I3- electrolyte. A high light-to-electric energy conversion efficiency of 7.89% was demonstrated in DSSCs system based on this flexible electrode substrate due to its high conductivity, which presents an improvement of 10.4% as compared with the general ITO-PEN flexible substrate. This method paves a facile and cost-effective way to manufacture various metals on a plastic nonconducive substrate beneficial for the devices toward flexible and rollable.