Translucent photovoltaic device and a method for manufacturing thereof

A method for manufacturing a translucent photovoltaic (PV) device comprising at least one translucent photovoltaic (PV) cell, the method comprising the steps of:

• providing a semi-transparent substrate;
• forming a stack of layers of the PV cell on the substrate, the stack of layers comprising:
• a front electrode layer, a back electrode layer, wherein the front electrode layer and the back electrode layer constitute an anode and a cathode layer, and a perovskite photoactive layer between the front electrode layer and the back electrode layer;
• wherein
• the step of forming the stack of layers of the PV cell comprises forming the back electrode layer from a carbon paste of which the basic ingredients are carbon black, graphite, polymeric binders, and a solvent system compatible with perovskite;
• the method further comprises a step of laser patterning of light-transmissive apertures in the stack of layers of the PV cell;
• the light-transmissive apertures extend through at least the back electrode layer and at least part of the perovskite photoactive layer and are fully surrounded by the stack of layers, so that the layers of the stack of layers of the PV cell between two of the light-transmissive apertures are not interrupted;
• a cross-section of the light-transmissive apertures along their depth is substantially uniform;
• wherein each of the apertures includes walls, and wherein the walls of the apertures form substantially smooth surfaces and extend through at least the back electrode layer, the front electrode layer, and the photoactive layer;
• and
• the front electrode layer and the back electrode layer are substantially perovskite free.