Method for inkjet printing an organic-inorganic perovskite
摘要
說明書
In a preferred embodiment, the method of the invention concerns the manufacturing of a perovskite solar cell in which a porous counter electrode is deposited before deposition of the perovskite precursor solution, and the precursor solution is deposited onto the porous counter electrode so as to infiltrate the latter and to get in contact with the surface increasing structure, preferably filling the pores of the latter.
In an embodiment, such cells comprise a subassembly or sub-entity comprising at preferably at least a porous n-type semiconductor layer, a porous insulating or space layer, a porous counter electrode and a perovskite deposited to be in contact with said porous n-type semiconductor layer. Such a configuration has been disclosed, for example, at the example of the TiO2/ZrO2/C configuration disclosed in reference 21 (Z. Ku et al, 2013) and reference 12 (A. Mei et al, 2014).
The particularity with cells comprising such a subassembly is that the counter electrode is porous and is deposited before the deposition of the perovskite. Without wishing to be bound by theory, it is speculated that the above is possible because a space layer has been provided, for example comprising and/or consisting of an insulating material, such as ZrO2, on top of the n-type semiconductor layer. For the purpose of the present invention, an insulating material is a material through which electrons will not flow by electronic motion during operation of the device under normal circumstances.
