2003/01/14 by Magnus Paulsson, M. Paulsson, S. Datta +1 · 2 citations
Chemistry · Engineering · Physics and Astronomy · #Electrochemical Analysis and Applications #Molecular Junctions and Nanostructures #Organic Electronics and Photovoltaics #cond-mat.mes-hall #cond-mat.soft
paper · pdf · doi:10.1103/physrevb.67.241403
4 pages, 3 figures
arxiv created 2003/01/14 · openalex publication_date 2003/06/26 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We provide a theoretical estimate of the thermoelectric current and voltage over a Phenyldithiol molecule. We also show that the thermoelectric voltage is (1) easy to analyze, (2) insensitive to the detailed coupling to the contacts, (3) large enough to be measured, and (4) give valuable information, which is not readily accessible through other experiments, on the location of the Fermi energy relative to the molecular levels. The location of the Fermi-energy is poorly understood and controversial even though it is a central factor in determining the nature of conduction (n or p type). We also note that the thermoelectric voltage measured over Guanine molecules with a scanning tunneling microscope by Poler et al., indicate conduction through the highest occupied molecular orbital level, i.e., p-type conduction.