초록 |
Recently, solution-processable organic-inorganic hybrid perovskite planar heterojunction solar cells consisting of bi-layered organometal halide perovskite/[6,6]-phenyl C61-butyric acid methyl ester (PCBM) have emerged as the most promising next generation solar cells. Because record efficiency above 10 % has achieved during last few years, development of cost-competitive process, which is suitable to roll-to-roll based mass production, is necessary to commercialize it. In this study, we demonstrate efficient perovskite solar cells fabricated by brush painting process. We will discuss structural, electrical, and optical characteristics of brush painted perovskite layer and the performance of solar cells will be compared with typical spin-coated devices. |