Perovskite Solar Cell Market – Global Industry Size, Share, Trends, Opportunity, and Forecast, Segmented By Structure (Planar Perovskite Solar Cells, Mesoporous Perovskite Solar Cells), By Product (Rigid Perovskite Solar Cells, Flexible Perovskite Solar Cells), By Method (Solution Method, Vapor-Assisted Solution Method), By Application (Smart Glass, Perovskite in Tandem Solar Cells, Solar Panel, P