@article{f8a3bf779776409882dca36c4b662fc1,
title = "Large Seebeck Values in Metal-Molecule-Semimetal Junctions Attained by a Gateless Level-Alignment Method",
abstract = "Molecular junctions are potentially highly efficient devices for thermal energy harvesting since their transmission properties can be tailored to break electron-hole transport symmetry and consequently yield high Seebeck and Peltier coefficients. Full harnessing of this potential requires, however, a capability to precisely position their Fermi level within the transmission landscape. Currently, with the lack of such a “knob” for two-lead junctions, their thermoelectric performance is too low for applications. Here we report that the requested capability can be realized by using junctions with a semimetal lead and molecules with a tailored effect of their monolayers on the work function of the semimetal. The approach is demonstrated by junctions with monolayers of alkanethiols on bismuth (Bi). Fermi-level tuning enables in this case increasing the Seebeck coefficient by more than 2 orders of magnitude. The underlying mechanism of this capability is discussed, as well as its general applicability.",
keywords = "Fermi-level tuning, Seebeck coefficient, molecular junctions, space-charge region, thermovoltage",
author = "Tamar Frank and Shachar Shmueli and {Cohen Jungerman}, Mor and Pini Shekhter and Yoram Selzer",
note = "Publisher Copyright: {\textcopyright} 2023 American Chemical Society.",
year = "2023",
month = nov,
day = "22",
doi = "10.1021/acs.nanolett.3c03188",
language = "אנגלית",
volume = "23",
pages = "10473--10479",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "22",
}