Hello, I have been trying to make a 2D solar cell with the structure FTO/TmPyPB/PCBM/P3HT:PCBM/MoO3/Au:Pd. I covered a portion of FTO with an adhesive tape to deposit different layers and then took potentiostate data. I used FTO to connect the WE and an electrolyte and silver wire touching Au:Pd to connect CE. But, its giving me short circuit. I am pretty new in this area. Can anyone please help me to understand where is the issue and how should I solve this? Thanks.