Molecular origins of conduction channels observed in shot-noise measurements.
Measurements of shot noise from single molecules have indicated the presence of various conduction channels. We present three descriptions of these channels in molecular terms showing that the number of conduction channels is limited by bottlenecks in the molecule and that the channels can be linked to transmission through different junction states. We introduce molecular-conductance orbitals, which allow the transmission to be separated into contributions from individual orbitals and contributions from interference between pairs of orbitals.
Solomon
Gemma C
GC
School of Chemistry, The University of Sydney, NSW 2006, Australia.
Gagliardi
Alessio
A
Pecchia
Alessandro
A
Frauenheim
Thomas
T
Di Carlo
Aldo
A
Reimers
Jeffrey R
JR
Hush
Noel S
NS
D004553:Electric Conductivity; D004563:Electrochemistry; D004566:Electrodes; D004735:Energy Transfer; D008422:Materials Testing / Q000379:methods; D049329:Nanostructures / Q000737:chemistry*; D013438:Sulfhydryl Compounds / Q000737:chemistry*
C516314:1,4-benzenedithiol; D013438:Sulfhydryl Compounds