Orientational control of molecular scale thermoelectricity.
Orientational control of molecular scale thermoelectricity.
复制标题
DOI:
10.1039/d2na00515h
复制
发表时间:
2022-10-25
影响因子:
4.7
通讯作者:
Ismael, Ali
中科院分区:
文献类型:
--
作者:
Alshammari, Majed;Al-Jobory, Alaa A.;Alotaibi, Turki;Lambert, Colin J.;Ismael, Ali
Through a comprehensive theoretical study, we demonstrate that single-molecule junctions formed from asymmetric molecules with different terminal groups can exhibit Seebeck coefficients, whose sign depends on the orientation of the molecule within the junction. Three anthracene-based molecules are studied, one of which exhibits this bi-thermoelectric behaviour, due to the presence of a thioacetate terminal group at one end and a pyridyl terminal group at the other. A pre-requisite for obtaining this behaviour is the use of junction electrodes formed from different materials. In our case, we use gold as the bottom electrode and graphene-coated gold as the top electrode. This demonstration of bi-thermoelecricity means that if molecules with alternating orientations can be deposited on a substrate, then they form a basis for boosting the thermovoltage in molecular-scale thermoelectric energy generators (TEGs). Through a comprehensive study, we demonstrate that single-molecule junctions formed from asymmetric molecules with different terminal groups can exhibit Seebeck coefficients, whose sign depends on the orientation of the molecule within the junction.
登录
查看更多内容
影响因子:
3.9
作者:
Davidson, Ross J.;Milan, David C.;Al-Owaedi, Oday A.;Ismael, Ali K.;Nichols, Richard J.;Higgins, Simon J.;Lambert, Colin J.;Yufit, Dmitry S.;Beeby, Andrew
通讯作者:
Beeby, Andrew
影响因子:
6.7
作者:
Herrer, L.;Ismael, A.;Cea, P.
通讯作者:
Cea, P.
影响因子:
8.4
作者:
通讯作者:
--
影响因子:
41.2
作者:
Qiu, Xinkai;Ivasyshyn, Viktor;Chiechi, Ryan C.
通讯作者:
Chiechi, Ryan C.
影响因子:
2.7
作者:
Duan Y;Qi D;Liu Y;Song Y;Wang X;Jiao S;Li H;Gonzalez FJ;Qi Y;Xu Q;Du J;Qu A
通讯作者:
Qu A