Efficient and Stable Large-area Perovskite Solar Cells

• DOI: 10.7567/ssdm.2016.f-2-01
• Publication Date: 2019-06-21T03:35:02Z
• Authors: L. Han

The recent dramatic rise in power conversion efficiencies (PCEs) of perovskite solar cells (PSCs) has triggered intense research worldwide. However, high PCE values have often been reached with poor stability at an illuminated area typically less than 0.1 square centimeter. We used heavily doped inorganic charge extraction layers planar PSCs to achieve very rapid carrier extraction, even 10- 20- nanometer-thick layers, avoiding pinholes and eliminating local structural defects over large areas. robust nature the allowed for fabrication aperture >1 centimeter that a >15%, as certified by accredited photovoltaic calibration laboratory. Hysteresis current-voltage characteristics was eliminated; were stable, >90% initial remaining after 1000 hours light soaking.