Abstract
AbstractHerein, we report a feasible molecular design of the binuclear clusters featuring the n‐p‐n heterojunction of biligand‐sandwiched inorganic units, which can be used as the effective charge trapper in ambipolar transistor memories with the large memory windows and the energy‐saving operation. We found that the hole confinement on the p‐type inorganic units is enhanced by spatial electronic anisotropy provided by the peripheral n‐type organic phosphine ligands. The steric hindrance of the coordination sites, the insulating effect of the carbon‐phosphorous single bonds and the parallel dual‐ligand coordination mode jointly elongate the interunit distances to nanometer scale and restrain the intramolecular electronic communications, leading to the tunable and reliable charge trapping. Our results show that the spatial effect is crucial to further amplifying the electronic differences between organic and inorganic units for function enhancement.
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