All Inorganic Perovskite Solar Cells

All inorganic perovskite solar cellsPerovskite solar cell (PSC)(PSCsPerovskite solar cell (PSC)) have drawn growing attention, due to their exceptional thermal stabilityThermal stability and suitable bandgapBandgap for attaining high efficiencyEfficiency via tandem architecture. Because of the intense research efforts in recent years, many of the challenges in all inorganic PSCsPerovskite solar cell (PSC), such as phase instabilityPhase instabilities, halide segregation, ion migrationIon migration, lattice expansion, etc., have been resolved to a larger extent. While writing this book chapter, appreciable power conversion efficiency (PCEPower conversion efficiency (PCE)) of 21% forSingle-junction cellssingle junction solar cellSingle junction solar cells and 23% for tandem solar cellTandem solar cells have been achieved with reasonable operational stabilityOperational stability, marking an important step towards commercializationCommercialization. In this book chapter, the key turning points in enhancing the performance of different cesium lead halide perovskiteLead halide perovskites(CsPbX₃) based inorganic PSCsPerovskite solar cell (PSC) are discussed. The fundamental understanding of how operational stress factors like heatHeat, light, and moistureMoisture are affecting the long-term performance of CsPbX₃ PSCsPerovskite solar cell (PSC) is also comprehensively reviewed, along with the methodsMethod employed to tackle these issues. Moreover, the incredible potential of CsPbX₃ in tandem solar cellsTandem solar cells and indoor photovoltaicsIndoor photovoltaics is briefly overviewed.