10:30 〜 10:45
▼ [20a-W531-6] Facile Fabrication of Planar Perovskite Solar Cells via One-Step Spin-Coating and Antisolvent Bath Methods
キーワード：Perovskite solar cells,One-step spin-coating,Antisolvent bath
In recent years, most highly efficient perovskite solar cells (PSCs) were fabricated using complicated methods or expensive vacuum facilities such as glovebox with humidity less than 1%. Herein, we have successfully prepared planar PSCs via one-step spin-coating and antisolvent bath technique (OSABT) in ambient air with relative humidity greater than 30%. The OSABT led to the efficient extraction of the precursor solvent and induced rapid precipitation, crystallization of homogenous and ultra-smooth perovskite films. Solvent annealing (SA) was applied for grain growth to obtain better morphology. Planar perovskite solar cell based on the SA high-quality perovskite films showed power conversion efficiency (PCE) up to 16.74%. The thermally annealed (TA) device, which were used as control device delivered a PCE of 12.71%. This work shows good potential for mass production of PSCs in the future.