Molecular level changes translate to big efficiency gains for organic solar cells

Molecular level changes translate to big efficiency gains for organic solar cells

Researchers have designed and synthesized a new organic semiconductor for organic solar cells (OSCs). By adding specific side units to their structure, they achieved separation between the frontier molecular orbitals, leading to lower exciton binding energy and increased power conversion efficiency. This tuning of the design of an acceptor component is expected to increase the performance of OSCs leading to more effective large-scale photovoltaic systems and new devices.