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Uniaxial stress influence on lattice, band gap and optical properties of n-type ZnO:first-principles calculations |
Yang Ping(杨平)†, Li Pei(李培), Zhang Li-Qiang(张立强), Wang Xiao-Liang(王晓亮), Wang Huan(王欢), Song Xi-Fu(宋喜福), and Xie Fang-Wei(谢方伟) |
Laboratory of Advanced Manufacturing & Reliability for MEMS/NEMS/OEDS, School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China |
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Abstract The lattice, the band gap and the optical properties of n-type ZnO under uniaxial stress are investigated by first-principles calculations. The results show that the lattice constants change linearly with stress. Band gaps are broadened linearly as the uniaxial compressive stress increases. The change of band gap for n-type ZnO comes mainly from the contribution of stress in the c-axis direction, and the reason for band gap of n-type ZnO changing with stress is also explained. The calculated results of optical properties reveal that the imaginary part of the dielectric function decreases with the increase of uniaxial compressive stress at low energy. However, when the energy is higher than 4.0 eV, the imaginary part of the dielectric function increases with the increase of stress and a blueshift appears. There are two peaks in the absorption spectrum in an energy range of 4.0-13.0 eV. The stress coefficient of the band gap of n-type ZnO is larger than that of pure ZnO, which supplies the theoretical reference value for the modulation of the band gap of doped ZnO.
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Received: 16 May 2011
Revised: 22 August 2011
Accepted manuscript online:
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PACS:
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68.60.Bs
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(Mechanical and acoustical properties)
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71.15.Mb
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(Density functional theory, local density approximation, gradient and other corrections)
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78.20.Ci
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(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
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71.20.Nr
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(Semiconductor compounds)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61076098) and the Innovative Foundation for Doctoral Candidate of Jiangsu Province, China (Grant No. CX10B 252Z). |
Cite this article:
Yang Ping(杨平), Li Pei(李培), Zhang Li-Qiang(张立强), Wang Xiao-Liang(王晓亮), Wang Huan(王欢), Song Xi-Fu(宋喜福), and Xie Fang-Wei(谢方伟) Uniaxial stress influence on lattice, band gap and optical properties of n-type ZnO:first-principles calculations 2012 Chin. Phys. B 21 016803
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[1] |
Michael H H, Samuel M, Henning F, Yan H Q, Wu Y Y, Hannes K, Eicke W, Richard R and Yang P D 2001 Science 292 1897
|
[2] |
Wienke J, Zanden B V D, Tijssen M and Zeman M 2008 Sol. Energ. Mat. Sol. C 92 884
|
[3] |
Zhao S Q, Yang L M, Liu W W, Zhao K, Zhou Y L and Zhou Q L 2010 Chin. Phys. B 19 087204
|
[4] |
Sberveglieri G, Groppelli S, Nelli P, Tintinelli A and Giunta G 1995 Sens. Actuators B: Chem. 24-25 588
|
[5] |
Gil M N and Myoung S K 2008 J. Inform. Display 9 8
|
[6] |
Nunes P, Costa D, Fortunato E and Martins R 2002 Vacuum 64 293
|
[7] |
Wienke J and Booij A S 2008 Thin Solid Films 516 4508
|
[8] |
Christopher W G, Ajaya K S, Joseph J B, Brandon J R, Maikel F A M V H, Paul H H, David S G and John D P 2010 Thin Solid Films 519 190
|
[9] |
Li W L, Sun Y and Fei W D 2006 Appl. Surf. Sci. 252 4995
|
[10] |
Goto M, Kasahara A, Tosa M, Kimura T and Yoshihara K 2002 Appl. Surf. Sci. 185 172
|
[11] |
Khan N and Li J 2006 Appl. Phys. Lett. 89 151916
|
[12] |
Ghosh R, Basak D and Fujihara S 2004 J. Appl. Phys. 96 2689
|
[13] |
Ozen I and Gulgun 2006 Adv. Sci. Technol. 45 1316
|
[14] |
Zhao D G, Xu S J, Xie M H, Tong S Y and Yang Hui 2003 Appl. Phys. Lett. 83 677
|
[15] |
Schleife A, Rödl C, Fuchs F, Furthmüller J and Bechstedt F 2007 Appl. Phys. Lett. 91 241915
|
[16] |
Li Y F, Yao B, Lu Y M, Cong C X, Zhang Z Z, Gai Y Q, Zheng C J, Li B H, Wei Z P, Shen D Z, Fan X W, Xiao L, Xu S C and Liu Y 2007 Appl. Phys. Lett. 91 021915
|
[17] |
He H P, Zhuge F, Ye Z Z, Zhu L P, Wang F Z, Zhao B H and Huang J Y 2006 J. Appl. Phys. 99 023503
|
[18] |
Zhang L, Ji G F, Zhao F and Gong Z Z 2011 Chin. Phys. B 20 047102
|
[19] |
Li D F, Li B L, Xiao H Y and Dong H N 2011 Chin. Phys. B 20 067101
|
[20] |
Segall M D, Lindan P J D, Probert M J, Pickard C J, Hasnip P J, Clark S J and Payne M C 2002 J. Phys.: Condens. Matter 14 2717
|
[21] |
Wu H Y, Cheng X L, Hu C H and Zhou P 2010 Physica B 405 606
|
[22] |
Liu X C, Ji Y J, Zhao J Q, Liu L Q, Sun Z P and Dong H L 2010 Acta Phys. Sin. 59 4925 (in Chinese)
|
[23] |
Sun J, Wang H T, He J L and Tian Y J 2005 Phys. Rev. B 71 125132
|
[24] |
Li Y F, Yao B, Lu Y M, Gai Y Q, Cong C X, Zhang Z Z, Zhao D X, Zhang J Y, Li B H, Shen D Z, Fan X W and Tang Z K 2008 J. Appl. Phys. 104 083516
|
[25] |
van de Walle C G and Martin R M 1989 Phys. Rev. Lett. 62 2028
|
[26] |
Hou Q Y, Zhao C W, Li J J and Wang G 2011 Acta Phys. Sin. 60 047104 (in Chinese)
|
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