Strong Non-Epitaxial Interactions: Crystallographically Aligned PbSe on VSe 2
Strong Non-Epitaxial Interactions: Crystallographically Aligned PbSe on VSe 2
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强非外延相互作用:VSe 2 上晶体排列的 PbSe
DOI:
10.1002/pssa.201800896
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Johnson, David C.
中科院分区:
文献类型:
--
作者:
Cordova, Dmitri L.;Kam, Taryn M.;Fender, Shannon S.;Tsai, Yu Hsin;Johnson, David C.
The interaction between a rock salt compound, PbSe, and the surface of a dichalcogenide (VSe2) is probed by making PbSe, VSe2, [(PbSe)1.11]1(VSe2)1and PbSe on VSe2films. PbSe precursors deposited on SiO2form rough films with randomly oriented PbSe crystallites. VSe2precursors deposited on a SiO2surface form crystallographically aligned films. The precursor to the metastable misfit layer compound [(PbSe)1.11]1(VSe2)1deposited on SiO2forms a crystallographically aligned film. PbSe precursors deposited on VSe2are very crystallographically aligned relative to PbSe deposited on SiO2. This reflects the strong interaction between PbSe and VSe2at the interface. The results suggest that comparing the degree of crystallographic alignment of films of precursors of prospective constituents on SiO2relative to depositing them on each other may be a simple test to show if a misfit layer compound will form between the two constituents.