Efficient solution-processed light-emitting diodes based on organic-inorganic hybrid antimony halides.

ABSTRACT: Organic-inorganic hybrid antimony halides are emerging emitters for solution-processed light-emitting diodes. However, achieving high-efficiency electroluminescence remains challenging resulting from the non-radiative recombination within emitters and inferior charge transport within device. Here, we develop an organic cation engineering to design a carbazole-functionalized triphenyl(9-ethyl-9H-carbazol-3-yl) phosphonium (TPPEtCz⁺), which enables a (TPPEtCz)₂Sb₂Br₈ film with good luminescence and achieves an improved charge transport within device. The TPPEtCz⁺ facilitates strong hydrogen bonding with the [Sb₂Br₈]^2- species and dichloromethane solvent, resulting in a more complete crystal restructuring,

SUBMITTER: Ma Z 

PROVIDER: S-EPMC12923899 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature