Band-like transport in solution-processed perylene diimide dianion films with high Hall mobility.

ABSTRACT: It is crucial to prepare high-mobility organic polycrystalline film through solution processing. However, the delocalized carrier transport of polycrystalline films in organic semiconductors has rarely been investigated through Hall-effect measurement. This study presents a strategy for building strong intermolecular interactions to fabricate solution-crystallized p-type perylene diimide (PDI) dianion films with a closer intermolecular π-π stacking distance of 3.25 Å. The highly delocalized carriers enable a competitive Hall mobility of 3 cm² V^-1 s^-1, comparable to that of the reported high-mobility organic single crystals. The PDI dianion films exhibit a high electrical conductivity of 17 S cm^-1 and typical band-like transport, as evidenced by t

SUBMITTER: Jia Y 

PROVIDER: S-EPMC11008685 | biostudies-literature | 2024 May

REPOSITORIES: biostudies-literature