Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Validating the Mott Formula with Self-Assembled Monolayer (SAM)-Based Large-Area Junctions: Effect of Length, Backbone, Spacer, Substituent, and Electrode on the Thermopower of SAMs

Authors
Park, SohyunJang, JiungYoon, Hyo Jae
Issue Date
16-9월-2021
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF PHYSICAL CHEMISTRY C, v.125, no.36, pp.20035 - 20047
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF PHYSICAL CHEMISTRY C
Volume
125
Number
36
Start Page
20035
End Page
20047
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/136341
DOI
10.1021/acs.jpcc.1c05623
ISSN
1932-7447
Abstract
Understanding how the Seebeck effect of organic thermoelectric devices is associated with the chemical structure of active molecules within the devices is a key goal in organic and molecular thermoelectrics. This paper describes a series of physical-organic studies that investigate structure-thermopower relationships in self-assembled monolayers (SAMs) through measurements of the Seebeck coefficient (S, mu V/K) using the eutectic gallium-indium (EGaIn)-based junction technique. Several hypotheses were derived from a transmission function-based simple toy model, the Lorentzian transmission function-based Mott formula. These hypotheses were tested by comparing values of S for simple alkyl and aryl molecules with different structures F- in terms of backbone, length, spacer, anchor, and substituent, and for different electrodes (Au vs Ag), and by monitoring responses of S to the structural modifications. Experimentally obtained S values were further reconciled with values simulated by the Mott formula and with interfacial electronic structure and molecule-electrode coupling strength, independently measured by ultraviolet photoelectron spectroscopy and transition voltage spectroscopy.
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Science > Department of Chemistry > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher YOON, Hyo Jae photo

YOON, Hyo Jae
이과대학 (화학과)
Read more

Altmetrics

Total Views & Downloads

BROWSE