Biophotovoltaics has emerged as a promising technology for generating renewable energy since it relies onliving organisms as inexpensive, self-repairing and readily available catalysts to produce electricity from an abundant resource - sunlight.
The efficiency of biophotovoltaic cells, however, has remained significantly lower than that achievable through synthetic materials.
Here, we devise a platform to harness the large power densities afforded by miniaturised geometries.