Tackling Energy Loss in Organic Solar Cells via Volatile Solid Additive Strategy.

ABSTRACT: The energy loss induced open-circuit voltage (V_OC) deficit hampers the rapid development of state-of-the-art organic solar cells (OSCs), therefore, it is extremely urgent to explore effective strategies to address this issue. Herein, a new volatile solid additive 1,4-bis(iodomethyl)cyclohexane (DIMCH) featured with concentrated electrostatic potential distribution is utilized to act as a morphology-directing guest to reduce energy loss in multiple state-of-art blend system, leading to one of highest efficiency (18.8%) at the forefront of reported binary OSCs. Volatile DIMCH decreases radiative/non-radiative recombination induced energy loss (ΔE₂/ΔE₃) by rationally balancing the crystallinity of donors and acceptors and realizing homogeneous network structur

SUBMITTER: Xiang H 

PROVIDER: S-EPMC11220641 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature