@article{Hamill:2023:10.1021/acs.jpcc.3c00069,
author = {Hamill, JM and Ismael, A and Al-Jobory, A and Bennett, TLR and Alshahrani, M and Wang, X and Akers-Douglas, M and Wilkinson, LA and Robinson, BJ and Long, NJ and Lambert, C and Albrecht, T},
doi = {10.1021/acs.jpcc.3c00069},
journal = {The Journal of Physical Chemistry C: Energy Conversion and Storage, Optical and Electronic Devices, Interfaces, Nanomaterials, and Hard Matter},
pages = {7484--7491},
title = {Quantum interference and contact effects in the thermoelectric performance of anthracene-based molecules},
url = {http://dx.doi.org/10.1021/acs.jpcc.3c00069},
volume = {127},
year = {2023}
}

Download

TY  - JOUR
AB  - We report on the single-molecule electronic and thermoelectric properties of strategically chosen anthracene-based molecules with anchor groups capable of binding to noble metal substrates, such as gold and platinum. Specifically, we study the effect of different anchor groups, as well as quantum interference, on the electric conductance and the thermopower of gold/single-molecule/gold junctions and generally find good agreement between theory and experiments. All molecular junctions display transport characteristics consistent with coherent transport and a Fermi alignment approximately in the middle of the highest occupied molecular orbital/lowest unoccupied molecular orbital gap. Single-molecule results are in agreement with previously reported thin-film data, further supporting the notion that molecular design considerations may be translated from the single- to many-molecule devices. For combinations of anchor groups where one binds significantly more strongly to the electrodes than the other, the stronger anchor group appears to dominate the thermoelectric behavior of the molecular junction. For other combinations, the choice of electrode material can determine the sign and magnitude of the thermopower. This finding has important implications for the design of thermoelectric generator devices, where both n- and p-type conductors are required for thermoelectric current generation.
AU  - Hamill,JM
AU  - Ismael,A
AU  - Al-Jobory,A
AU  - Bennett,TLR
AU  - Alshahrani,M
AU  - Wang,X
AU  - Akers-Douglas,M
AU  - Wilkinson,LA
AU  - Robinson,BJ
AU  - Long,NJ
AU  - Lambert,C
AU  - Albrecht,T
DO  - 10.1021/acs.jpcc.3c00069
EP  - 7491
PY  - 2023///
SN  - 1932-7447
SP  - 7484
TI  - Quantum interference and contact effects in the thermoelectric performance of anthracene-based molecules
T2  - The Journal of Physical Chemistry C: Energy Conversion and Storage, Optical and Electronic Devices, Interfaces, Nanomaterials, and Hard Matter
UR  - http://dx.doi.org/10.1021/acs.jpcc.3c00069
UR  - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000972228100001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
UR  - https://pubs.acs.org/doi/10.1021/acs.jpcc.3c00069
UR  - http://hdl.handle.net/10044/1/112414
VL  - 127
ER  - 

Download