Graphene oxide decorated with gold enables efficient biophotovolatic cells incorporating photosystem I.

ABSTRACT: This paper describes the use of reduced graphene oxide decorated with gold nanoparticles as an efficient electron transfer layer for solid-state biophotovoltic cells containing photosystem I as the sole photo-active component. Together with polytyrosine-polyaniline as a hole transfer layer, this device architecture results in an open-circuit voltage of 0.3 V, a fill factor of 38% and a short-circuit current density of 5.6 mA cm^-2 demonstrating good coupling between photosystem I and the electrodes. The best-performing device reached an external power conversion efficiency of 0.64%, the highest for any solid-state photosystem I-based photovoltaic device that has been reported to date. Our results demonstrate that the functionality of photosystem I in the non-natural environment o

SUBMITTER: Torabi N 

PROVIDER: S-EPMC8984948 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature