npj Flexible Electronics · 2018 · 546 citations · 141 references
Natural SciencesMaterials EngineeringMaterials ScienceEnergy MaterialsSemiconductor MaterialsThin FilmsPerovskite MaterialsPhotovoltaic DevicesPhotovoltaic MaterialsSemiconductor DefectsSolar Cell MaterialsSolar CellsControl Of Structural DefectsDefect StatesFilm DepositionPassivationPerovskite Solar CellsPower ConversionPower Conversion EfficiencySurface Passivation Layers
Abstract Metal halide perovskites have achieved great success in photovoltaic applications during the last few years. The solar to electrical power conversion efficiency (PCE) of perovskite solar cells has been rapidly improved from 3.9% to certified 22.7% due to the extensive efforts on film deposition methods, composition and device engineering. Further investigation on eliminating the defect states in perovskite absorbers is necessary to push forward the PCE of perovskite solar cells approaching the Shockley-Queisser limit. In this review, we summarize the defect properties in perovskite films and present methodologies to control the defects density, including the growth of large size crystals, photo-curing method, grain boundary and surface passivation, and modification of the substrates. We also discuss the defects-related stability and hysteresis issues and highlight the current challenges and opportunities in defects control of perovskite films.
141
Sequential deposition as a route to high-performance perovskite-sensitized solar cells
Julian Burschka, Norman Pellet, Soo‐Jin Moon et al. · Nature · 2013 · 9.4K citations · Full text
Natural Sciences, Materials Engineering, Materials Science +12
The emergence of perovskite solar cells
Martin A. Green, Anita Ho‐Baillie, Henry J. Snaith · Nature Photonics · 2014 · 7.3K citations