Singleelectrondeviceshavebeenpreparedbythemolecularself assemblytechniqueandtheirvoltage currentcharacteristicsmeasured .Ontheotherhand,singleelectrondeviceswerestudiedbytheMonteCarlosimulationbasedonasemi classicaltheoryofsingleelectronphenomena.Thesimulatdvoltage currentcurveissimilartothemeasuredone.Thisshowsthattheabovemethodmaybeusedtostudysingleelectrondevices.Furthermore ,thesimulatdresultsindicatethatthevoltage currentcharacteristicofasingleelectrondeviceisdeterminedonlybythesmallquantityofnanoparticlesinthelowvoltageregionthoughtherearealargenumberofnanoparticlesbetweenthetwoelectrodes.