Studies of the mechanism of electrical conduction in As-doped ZnO by structural and chemical-bonding analyses and first principle calculations

2008 ◽  
Vol 148 (7-8) ◽  
pp. 301-304 ◽  
Author(s):  
Yiqun Shen ◽  
Lan Mi ◽  
Xiaofeng Xu ◽  
Jiada Wu ◽  
Peinan Wang ◽  
...  
2017 ◽  
Vol 95 ◽  
pp. 354-360 ◽  
Author(s):  
Tengchao Guo ◽  
Guoyue Xu ◽  
Shujuan Tan ◽  
Ning Liu ◽  
Jianchao Zhang ◽  
...  

2015 ◽  
Vol 17 (25) ◽  
pp. 16545-16552 ◽  
Author(s):  
Yu-Tsung Lin ◽  
Hsien-Ching Chung ◽  
Po-Hua Yang ◽  
Shih-Yang Lin ◽  
Ming-Fa Lin

The geometric and electronic properties of passivated armchair graphene nanoribbons, enriched by strong chemical bonding between edge-carbons and various adatoms, are investigated by first-principle calculations.


2011 ◽  
Vol 13 (2) ◽  
pp. 384-387 ◽  
Author(s):  
Xin Tang ◽  
Haifeng Lü ◽  
Qingyu Zhang ◽  
Jijun Zhao ◽  
Yuyuan Lin

2011 ◽  
Vol 10 (04n05) ◽  
pp. 577-580 ◽  
Author(s):  
HITESH SHARMA ◽  
RANBER SINGH

We report the first-principle calculations of ferromagnetism in C -doped ZnO clusters. The carbon impurities in ZnO clusters are doped at substitutional O or Zn sites and at interstitial sites and the total energy calculations suggest C at O site is more stable than that at Zn site. The substitutional C impurity is found more favorable than interstitial C impurity in these clusters. The ZnC region is mainly responsible for the observed ferromagnetism in ZnO:C systems. The average magnetic moment of Zn n O n–m C m clusters is found to be 2 μB/ C for n, m < 7. For n, m > 6 the magnetic moment decreases below 2 μB/ C . The magnetic moment in ( ZnO )n C i; i = 1 – 2 is found to be 0.1–2.0 μB/ C . The combination of substitutional and interstitial C impurities in ZnO clusters leads to magnetic moment of 0.4–1.0 μB/ C .


RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24458-24463 ◽  
Author(s):  
Ngoc Thanh Thuy Tran ◽  
Shih-Yang Lin ◽  
Olga E. Glukhova ◽  
Ming-Fa Lin

The chemical bonding in graphene oxide with oxygen concentrations from 50% to 1% is investigated using first-principle calculations.


2016 ◽  
Vol 39 (1) ◽  
pp. 315-319 ◽  
Author(s):  
A EL AMIRI ◽  
H LASSRI ◽  
E K HLIL ◽  
M ABID

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