纳米TiO_2薄膜厚度与不锈钢基体对染料敏化太阳能电池的影响

The influnce of stainless steel substrate and thinkness of nano-TiO_2 film on dye-sensitizied solar cells

由于用金属做光阳极基体的染料敏化太阳能电池(DSCs)可以制作成柔性电池,成本低并且有广泛的用途,受到越来越多的关注。用导电玻璃和304不锈钢作为基体制作了DSCs,研究了纳米TiO2薄膜厚度和不锈钢基体对DSCs光电转换性能以及稳定性的影响。结果表明,TiO2薄膜厚度在20μm左右,玻璃DSCs具有较高的光电转化效率和稳定性。而不锈钢DSCs的稳定性较差,特别是不锈钢做光阳极基体的DSCs。

Dye-sensitized solar cells （DSCs） built on sheet metals can also be integrated as flexible cells, which is low cost,broad use and get more and more attention. In this research,DSCs were built on glass or 304 stainless steel substrates,the influence of the thickness of nanoporous titanium dioxide （TIP2） film and substrate on energy conversion efficiencies and the stability of DSCs was investigated. The result showed that glass solar cell got high energy conversion efficiencies and good stability when the thickness of TiO2 film was around 20μm, whereas,the stability of stainless steel solar cell was poor comparatively, especially for the DSCs with stainless steel photoelectrode subtrate.