Wide bandgap halide perovskite absorbers for semi-transparent photovoltaics: From theoretical design to modules

The interest in Building Integrated Photovoltaic (BIPV) is growing worldwide. A pivotal role the development of these technologies can be played by semi-transparent perovskite solar cells (ST-PSCs), thanks to their excellent potential terms both Average Visible Transmittance (AVT) and color neutrality. Here, we demonstrate that MAPb(Br1−xClx)3 wide band gap thin films allow fabricate efficient modules. To this purpose, electro-optical simulations were employed optimize device stack considering transmitted/reflected light at each interface between constituent layers, composition thickness absorber impact transparent top contact. By combining theoretical experimental results, show optimal corresponds a chloride molar ratio equal 0.13, resulting champion efficiency 6.3 %, 69.4 % Light Utilization Efficiency 4.37 %. Furthermore, mini-modules with stabilized 5.45 AVT 59.4 an aperture area 53.6 cm2 fabricated defining new state-of-art for We thus demonstrated highly modules PV windows, paving way future integration architectural components.