Intrinsic light reflection of conjugated films towards high-performance organic solar cells.

ABSTRACT: In organic solar cells (OSCs), which represent a quintessential application system for organic conjugated films, the intrinsic light reflection of these films significantly influences the optical performance of the devices through the Fabry-Pérot micro-cavity effect. However, this phenomenon has not been comprehensively investigated. This study demonstrates that the film's intrinsic reflection arises from the light-matter interaction, which is mainly governed by the polarizability of delocalized electron cloud and the orientation of the conjugated backbone. Furthermore, the multi-level interference within the OSC micro-cavity leads to a dependence of both the reflection properties and the short-circuit current density (J_SC) on the active layer thickness. Based on these insights,

SUBMITTER: Shen Z 

PROVIDER: S-EPMC12816033 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature