Effects of non-stoichiometry on electronic structure of CuxSy compounds studied by first-principle calculations

2019 ◽  
Vol 6 (10) ◽  
pp. 105513 ◽  
Author(s):  
Jie Deng ◽  
Zong-Yan Zhao
2017 ◽  
Vol 54 (4) ◽  
pp. 49-57
Author(s):  
A.I. Popoola ◽  
A.Y. Odusote ◽  
O.E. Ayo-Ojo

AbstractFirst-principle calculations have been performed to investigate the structural and electronic properties of platinum group metal diborides in the stoichiometry XB2(X = Pt, Ir, Pd, Rh, Os). All investigated compounds have shown to belong to the orthorhombicPmmn space group rather than theC2/m previously predicted in some of the compositions. Compressibility will reduce with boron addition in Pt, Pd and Rh, but will increase with boron addition into Ir and Os. The electronic density of states show that all the compounds are metals, with PtB2, PdB2and OsB2being potentially incompressible and superhard materials.


RSC Advances ◽  
2016 ◽  
Vol 6 (5) ◽  
pp. 3480-3486 ◽  
Author(s):  
Lili Sun ◽  
Wei Zhou ◽  
Yanyu Liu ◽  
Dandan Yu ◽  
Yinghua Liang ◽  
...  

The Fe doping can increase the visible absorption of SnS2 and extend the absorption into the infrared region.


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