LAUSR

Thanks to the excellent optoelectronic properties, perovskite solar cells (PSCs) are considered a promising next-generation candidate for photovoltaics (PVs). Their high-power conversion efficiency and low solution-processed production cost hold promise for realizing solar grid parity at a low cost. Despite the great progress in cell efficiency and stability, most research efforts have focused on laboratory-scale, small-area PSCs. The key issues for successfully commercializing perovskite PVs depend on the efficiency, stability, and cost of PSC modules. Now, the efficiency of PSC modules lag far behind the laboratory-scale cells. We need to be concerned about achieving industrial-scale, large-area manufacturing with high throughput for practical application of this technique. This perspective urges the community to present the module performance and long-term stability data using standard methods and reliable measurement protocols, which can be recognized by conventional PV industries and compared with other PV techniques. Identifying the degradation mechanism along with collecting the statistical data under actual operating conditions should start now or in the very near future.