Perovskite Solar Cells: Denatured M13 Bacteriophage‐Templated Perovskite Solar Cells Exhibiting High Efficiency (Adv. Sci. 20/2020)

In article number 2000782, Il Jeon, Yutaka Matsuo, Jin‐Woo Oh, and co‐workers demonstrate the application of the M13 bacteriophages to perovskite solar cells. The M13 bacteriophage is a nature‐inspired material which has an aspect ratio of 880 nm to 6.6 nm. Along with the eco‐friendly merits, their uniform size and many Lewis base functional groups on the surface qualify them for crystal growth templates and passivators. The device efficiency improves from 17.8% to 20.1% upon the addition of the M13 bacteriophage. The effectiveness can be maximized by denaturing the M13 bacteriophage at 90 °C before the perovskite film fabrication. [Image: see text]