Thermoelectricity in tunneling nanostructures

Article

关键词: MOLECULAR JUNCTIONS;    ELECTRON;    FORMULA;    STATES;   

DOI  :  10.1103/PhysRevB.92.155431

来源: SCIE

【 摘 要 】

We employ a simple analytic model to calculate the thermopower of low-transparency molecular nanosystems. It turns out that the sign of the thermovoltage for this model depends sensitively on the participating molecular orbital, and one finds a sign change when the transport channel switches from the highest occupied molecular orbital to the lowest unoccupied molecular orbital. Comparing our results to recent experimental data obtained for a benzenedithiol molecule contacted with a scanning tunneling microscope tip, we observe good agreement.

【 授权许可】

Free