Petroleum coke-derived graphene as a low-cost electrode material for efficient perovskite solar cells.

ABSTRACT: We present a cost-effective approach for converting petroleum coke into high-quality graphene via thermal desulfurization followed by electrochemical exfoliation. The synthesized graphene exhibited structural integrity and optoelectronic properties comparable to those of graphite-derived materials. Integrated as rear electrodes in perovskite solar cells (PSCs), the petcoke-derived graphene enabled devices to achieve a power conversion efficiency (PCE) of approximately 19.1%, with an open-circuit voltage (V _oc) exceeding 1.13 V and a fill factor (FF) of ∼78%. The petcoke-derived graphene PSCs exhibited superior photovoltaic performance compared to those fabricated with commercial graphene, and demonstrated comparable efficiency to devices employing conventional gold

SUBMITTER: Alkhatani M 

PROVIDER: S-EPMC12198975 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature