Imperial College London
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PROFESSOR NICHOLAS LONG

Faculty of Natural Sciences, Department of Chemistry

Sir Edward Frankland BP Chair -Inorganic Chemistry
 
 
 
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Contact

 

+44 (0)20 7594 5781n.long Website CV

 
 
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Location

 

501jMolecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Wang:2021:10.1039/d1sc00672j,
author = {Wang, X and Ismael, A and Almutlg, A and Alshammari, M and Al-Jobory, A and Alshehab, A and Bennett, TLR and Wilkinson, LA and Cohen, LF and Long, NJ and Robinson, BJ and Lambert, C},
doi = {10.1039/d1sc00672j},
journal = {Chemical Science},
pages = {5230--5235},
title = {Optimised power harvesting by controlling the pressure applied to molecular junctions},
url = {http://dx.doi.org/10.1039/d1sc00672j},
volume = {12},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A major potential advantage of creating thermoelectric devices using self-assembled molecular layers is their mechanical flexibility. Previous reports have discussed the advantage of this flexibility from the perspective of facile skin attachment and the ability to avoid mechanical deformation. In this work, we demonstrate that the thermoelectric properties of such molecular devices can be controlled by taking advantage of their mechanical flexibility. The thermoelectric properties of self-assembled monolayers (SAMs) fabricated from thiol terminated molecules were measured with a modified AFM system, and the conformation of the SAMs was controlled by regulating the loading force between the organic thin film and the probe, which changes the tilt angle at the metal-molecule interface. We tracked the thermopower shift vs. the tilt angle of the SAM and showed that changes in both the electrical conductivity and Seebeck coefficient combine to optimize the power factor at a specific angle. This optimization of thermoelectric performance via applied pressure is confirmed through the use of theoretical calculations and is expected to be a general method for optimising the power factor of SAMs.
AU  - Wang,X
AU  - Ismael,A
AU  - Almutlg,A
AU  - Alshammari,M
AU  - Al-Jobory,A
AU  - Alshehab,A
AU  - Bennett,TLR
AU  - Wilkinson,LA
AU  - Cohen,LF
AU  - Long,NJ
AU  - Robinson,BJ
AU  - Lambert,C
DO  - 10.1039/d1sc00672j
EP  - 5235
PY  - 2021///
SN  - 2041-6520
SP  - 5230
TI  - Optimised power harvesting by controlling the pressure applied to molecular junctions
T2  - Chemical Science
UR  - http://dx.doi.org/10.1039/d1sc00672j
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000640322400024&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://pubs.rsc.org/en/content/articlelanding/2021/SC/D1SC00672J#!divAbstract
UR  - http://hdl.handle.net/10044/1/89334
VL  - 12
ER  -
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