Flexible thin film solar cells represent the future. This study concentrates on making CuInSe₂ based solar cells non rigid by depositing the rear molybdenum contact onto inox 316.

In order to overcome the Inox316 disadvantages such as the metallic impurities diffusion and the surface roughness, a bi-layer TiN/Ti have been introduced between the Mo rear contact and Inox 316. Two techniques have been employed: spray pyrolysis for CuInSe₂ and by cathodic magnetron sputtering for Mo/TiN/Ti. CuInSe₂ layers deposited onto glass substrates present high crystallinity with (112) preferred orientation at 550 °C. However, these properties disappear for CuInSe₂ on Inox316 with missing peak (112) and fall in the ratio Se/Cu from 1.9 to 1.1.

According to EDS analysis, these results may be due to the Fe and Cu diffusion from Inox316 to CuInSe₂ film, this is why the presence of TiN/Ti bi-layer improves the surface condition of Inox 316 and reduces Iron presence from 9.7 % to 1.9 % and Cr from 3.8 % to 0.5 %; this confirms its efficiency to improve the solar cell performance using Inox316 substrate.

柔性薄膜太阳能电池代表了未来。这项研究致力于通过将背面的钼触点沉积到inox 316上，使基于CuInSe ₂的太阳能电池变得非刚性。

为了克服Inox316的缺点，例如金属杂质扩散和表面粗糙度，在Mo后触点和Inox 316之间引入了双层TiN / Ti。已采用两种技术：CuInSe _2的喷雾热解和Mo / TiN / Ti阴极磁控溅射。沉积在玻璃基板上的CuInSe ₂层具有较高的结晶度，并在550°C时具有（112）优选取向。但是，这些特性对于Inox316上的CuInSe ₂消失了，但缺少峰（112），Se / Cu比从1.9降至1.1。

根据EDS分析，这些结果可能归因于Fe和Cu从Inox316扩散到CuInSe ₂膜，这就是为什么存在TiN / Ti双层可以改善Inox 316的表面状况并将铁的存在从9.7％降低到1.9％，铬含量从3.8％降至0.5％; 这证实了使用Inox316基板提高太阳能电池性能的效率。