Assembly of photo-bioelectrochemical cells using photosystem I-functionalized electrodes

Ariel Efrati, Chun Hua Lu, Dorit Michaeli, Rachel Nechushtai, Sabine Alsaoub, Wolfgang Schuhmann, Itamar Willner*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

66 Scopus citations


The design of photo-bioelectrochemical cells based on native photosynthetic reaction centres is attracting substantial recent interest as a means for the conversion of solar light energy into electrical power. In the natural photosynthetic apparatus, the photosynthetic reaction centres are coupled to biocatalytic transformations leading to CO2 fixation and O2 evolution. Although significant progress in the integration of native photosystems with electrodes for light-to-electrical energy conversion has been achieved, the conjugation of the photosystems to enzymes to yield photo-bioelectrocatalytic solar cells remains a challenge. Here we demonstrate the assembly of integrated photosystem I/glucose oxidase or glucose dehydrogenase photo-bioelectrochemical electrodes. We highlight the photonic wiring of the biocatalysts by means of photosystem I using glucose as fuel. Our results provide a general approach to assemble photo-bioelectrochemical solar cells with wide implications for solar energy conversion, bioelectrocatalysis and sensing.

Original languageAmerican English
Article number15021
JournalNature Energy
Issue number2
StatePublished - 18 Jan 2016

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