The electronic structures and properties of transition metal-doped silicon nanoclusters: A density functional investigation

2008 ◽  
Vol 353 (1-3) ◽  
pp. 170-176 ◽  
Author(s):  
Debashis Bandyopadhyay ◽  
Manish Kumar
2006 ◽  
Vol 527-529 ◽  
pp. 641-646 ◽  
Author(s):  
M.S. Miao ◽  
Walter R.L. Lambrecht

We report density functional calculations using the full-potential linearized muffin-tin orbital method on early first row transition metal doped Silicon Carbide in both cubic (3C) and hexagonal (4H) polytypes. The energy levels in the gap for Ti, V and Cr are in good agreement with the available photoluminescence experiments. Our calculation shows that the Ti impurity is active for 4H but not for 3C, while V and Cr impurities are active for both polytypes. The magnetic interactions are very different for Cr and Mn. Cr shows a very local exchange interaction that decays rapidly, which is similar for different polytypes and different sites. The exchange interaction for Mn is quite long range and is very sensitive to the location of the Mn pairs.


RSC Advances ◽  
2015 ◽  
Vol 5 (25) ◽  
pp. 19353-19361 ◽  
Author(s):  
Haijun Pan ◽  
Xiangying Meng ◽  
Jiajia Cai ◽  
Song Li ◽  
Gaowu Qin

To explore the photoelectrochemical efficiency of hematite as a photoanode, we comprehensively investigate the electronic structures of hematite doped with 4d transition-metal X (X = Y, Zr, Mo, Tc, Rh, and Ru) based on the density-functional theory (DFT).


2021 ◽  
Vol 197 ◽  
pp. 110613
Author(s):  
Ijeoma Cynthia Onyia ◽  
Stella Ogochukwu Ezeonu ◽  
Dmitri Bessarabov ◽  
Kingsley Onyebuchi Obodo

Author(s):  
Yogeshwaran Krishnan ◽  
Sateesh Bandaru ◽  
Niall J. English

A series of transition-metal-doped Fe1−xMxCo(PO4)4(010) and Fe3Co1−xMx(PO4)4(010) electro-catalyst surfaces (with M = Mn, Os, Ru, Rh and Ir) have been modelled via density-functional theory (DFT) to gauge their oxygen-evolution reactions (OER).


2016 ◽  
Vol 170 ◽  
pp. 142-146 ◽  
Author(s):  
Li-Ting Tseng ◽  
Xi Luo ◽  
Nina Bao ◽  
Jun Ding ◽  
Sean Li ◽  
...  

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