Does the Seebeck coefficient of a single-molecule junction depend on the junction configuration?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00580138" target="_blank" >RIV/68378271:_____/21:00580138 - isvavai.cz</a>

Alternative codes found

RIV/61388955:_____/21:00544961

Result on the web

<a href="https://doi.org/10.1039/d1ta05324h" target="_blank" >https://doi.org/10.1039/d1ta05324h</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d1ta05324h" target="_blank" >10.1039/d1ta05324h</a>

Result language

angličtina

Original language name

Does the Seebeck coefficient of a single-molecule junction depend on the junction configuration?

Original language description

A new experimental method based on dynamic switching between (thermo)electric and thermoelectric voltage measurements. Two model systems, 4,40-bipyridine (1) and 4,40 -diaminostilbene (2), have been scrutinized. Single-molecule conductance (G) and thermopower (S) values were obtained for the two most prob. junction config. of 1 and 2, each having two different conductance values, GH (high) and GL (low), where GH > GL. Thermopower values of S(GH) ¼ 6.4 1.5 mV K1 and S(GL) ¼ 7.0 1.6 mV K1 were obtained for the molecular junctions of 1 and values of S(GH) ¼ +14.4 3.5 mV K1 and S(GL) ¼ +10.4 3.0 mV K1 were obtained for the molecular junctions of 2. The GH and S(GH) values for 1 and 2 are consistent with previously reported results. Thermopower values obtained for both configurations of 2 during junction evolution are reported for the first time. This work shows that both S values are the same for each molecule and they do not depend on the molecular junction configuration.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10403 - Physical chemistry

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Materials Chemistry A

ISSN

2050-7488

e-ISSN

2050-7496

Volume of the periodical

9

Issue of the periodical within the volume

32

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

17512-17520

UT code for WoS article

000683040900001

EID of the result in the Scopus database

2-s2.0-85113145507