Ionic conductance oscillations in sub-nanometer pores probed by optoelectronic control

Optoelectronic control modulates ion transport through sub-nanometer MoS2 pores An ionic conductance oscillation phenomenon is experimentally observed in nanopores Ionic Coulomb blockade may originate from binding-induced multi-ion interactions one of the phenomena revealing quantized nature charges, which crucial importance to our understanding sub-continuum nanofluidics and mechanism biological channels. Here, we report an experimental observation plausible theoretical reasoning conduction oscillations. Our experiment performed under confinement (sub-nm) with optoelectronic enabled for active tuning pore surface charges. Under this charge control, measure current at fixed voltages observe multiple peaks. analytical discussions molecular dynamics simulations further reveal that oscillations interaction entry, particularly electrostatic repulsion ions external by bound inside pore. work adds a effect paves way developing advanced machineries.