Long-range light-modulated charge transport across the molecular heterostructure doped protein biopolymers.

ABSTRACT: Biological electron transfer (ET) across proteins is ubiquitous, such as the notable photosynthesis example, where light-induced charge separation takes place within the reaction center, followed by sequential ET via intramolecular cofactors within the protein. Far from biology, carbon dots (C-Dots) with their unique optoelectronic properties can be considered as game-changers for next-generation advanced technologies. Here, we use C-Dots for making heterostructure (HS) configurations by conjugating them to a natural ET mediator, the hemin molecule, thus making an electron donor-acceptor system. We show by transient absorption and emission spectroscopy that the rapid intramolecular charge separation happens following light excitation, which can be ascribed to an ultrafast electron a

SUBMITTER: Mondal S 

PROVIDER: S-EPMC8246076 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature