National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO, 80401, USA.
School of Engineering, Brown University, Providence, RI, 02912, USA.
Adv Mater. 2015 Nov 4;27(41):6363-70. doi: 10.1002/adma.201502586. Epub 2015 Sep 28.
The preparation of uniform, high-crystallinity planar perovskite films with high-aspect-ratio grains over a square-inch area is demonstrated. The best power conversion efficiency (PCE) of 16.3% (stabilized output of ≈15.6%) is obtained for a planar perovskite solar cell (PSC) with 1.2 cm2 active area, and the PCE jumps to 18.3% (stabilized output of ≈17.5%) for a PSC with a 0.12 cm2 active area.
研究团队展示了在一平方英寸面积上制备具有高纵横比晶粒的均匀、高结晶度平面钙钛矿薄膜的方法。对于具有 1.2 cm2 有效面积的平面钙钛矿太阳能电池（PSC），获得了最佳的功率转换效率（PCE）为 16.3%（稳定输出约 15.6%），而对于有效面积为 0.12 cm2 的 PSC，PCE 跃升至 18.3%（稳定输出约 17.5%）。
