Topology and electronic structure of flexible (Nb,Ru)O2 thermoelectrics
Topology and electronic structure of flexible (Nb,Ru)O2 thermoelectrics
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柔性(Nb,Ru)O2热电材料的拓扑和电子结构
DOI:
10.1088/1361-648x/aa53ac
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
J. Bednarcik
中科院分区:
文献类型:
--
作者:
D. Music;V. Schnabel;J. Bednarcik
Using combinatorial reactive sputtering, we have synthesised Nb–Ru–O thin films on Kapton (polyimide) with the Ru/Nb ratio from 0.5 to 1.1 in a dioxide type of environment. Based on correlative analysis, including synchrotron diffraction experiments and density functional theory, the topology of these amorphous samples is characterised by short metal–oxygen bonds and very pronounced metal–metal interactions within the second coordination shell. We suggest that the role of Nb is within bond length reduction and promotion of quantum confinement, giving rise to an increase in the Seebeck coefficient. Furthermore, these Nb–Ru–O thin films are mechanically flexible as there are no crack formation and delamination upon bending or rolling. This may be rationalised as follows. Nb–Ru–O appears ductile due to low topological connectivity and forms strong bonds with Kapton.
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DOI:
10.1088/0953-8984/27/11/115501
发表时间:
2015
期刊:
Journal of Physics: Condensed Matter
影响因子:
--
作者:
D. Music;Richard W. Geyer;Pascal Bliem;M. Hans;D. Primetzhofer
通讯作者:
D. Primetzhofer
影响因子:
8.6
作者:
J. Perdew;K. Burke;M. Ernzerhof
通讯作者:
J. Perdew;K. Burke;M. Ernzerhof
影响因子:
3.7
作者:
Ozaki, T;Kino, H
通讯作者:
Kino, H
影响因子:
1.2
作者:
Inoue, Y;Okamoto, M;Morimoto, J
通讯作者:
Morimoto, J
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
D. Music;J. Schneider
通讯作者:
J. Schneider