CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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First-principle study of the structural, electronic, and optical properties of SiC nanowires |
Wei-Hu Zhang(张威虎)1, Fu-Chun Zhang(张富春)2, Wei-Bin Zhang(张伟斌)3, Shao-Lin Zhang(张绍林)3, Woochul Yang3 |
1 Communication and Information Engineering College, Xi'an University of Science and Technology, Xi'an 710068, China; 2 College of Physics and Electronic Information, Yan'an University, Yan'an 716000, China; 3 Department of Physics, Dongguk University, Seoul 100715, Korea |
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Abstract We preform first-principle calculations for the geometric, electronic structures and optical properties of SiC nanowires (NWs). The dielectric functions dominated by electronic interband transitions are investigated in terms of the calculated optical response functions. The calculated results reveal that the SiC NW is an indirect band-gap semiconductor material except at a minimum SiC NW (n=12) diameter, showing that the NW (n=12) is metallic. Charge density indicates that the Si-C bond of SiC NW has mixed ionic and covalent characteristics: the covalent character is stronger than the ionic character, and shows strong s-p hybrid orbit characteristics. Moreover, the band gap increases as the SiC NW diameter increases. This shows a significant quantum size and surface effect. The optical properties indicate that the obvious dielectric absorption peaks shift towards the high energy, and that there is a blue shift phenomenon in the ultraviolet region. These results show that SiC NW is a promising optoelectronic material for the potential applications in ultraviolet photoelectron devices.
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Received: 16 October 2016
Revised: 13 January 2017
Accepted manuscript online:
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PACS:
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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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73.90.+f
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(Other topics in electronic structure and electrical properties of surfaces, interfaces, thin films, and low-dimensional structures)
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78.67.-n
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(Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61664008), the Special Research Funds for Discipline Construction of High Level University Project, China (Grant No. 2015SXTS02), the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (Grant Nos. 2015R1D1A1A01058991 and 2016R1A6A1A03012877). |
Corresponding Authors:
Fu-Chun Zhang, Woochul Yang
E-mail: zhangfuchun72@163.com;wyang@dongguk.edu
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Cite this article:
Wei-Hu Zhang(张威虎), Fu-Chun Zhang(张富春), Wei-Bin Zhang(张伟斌), Shao-Lin Zhang(张绍林), Woochul Yang First-principle study of the structural, electronic, and optical properties of SiC nanowires 2017 Chin. Phys. B 26 057103
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[1] |
Wong E W, Sheehan P E and Lieber C M 1997 Science 277 1971
|
[2] |
Prasai D, John W, Weixelbaum L, Krüger O, Wagner G, Sperfeld P, Nowy S, Friedrich D, Winter S and Weiss T 2013 J. Mater. Res. 28 33
|
[3] |
Anderson T J, Hobart K D, Greenlee J D, Shahin D I, Koehler A D, Tadjer M J, Imhoff E A, Myers-Ward R L, Christou A and Kub F J 2015 Appl. Phys. Express 8 041301
|
[4] |
Gao R X, Gao S Y, Fan G H, Liu J, Wang Q, Zhao H F and Qu S L 2014 Acta Phys. Sin. 63 067801 (in Chinese)
|
[5] |
Cheng G M, Chang T H, Qin Q Q, Huang H C and Zhu Y 2014 Nano Lett. 14 754
|
[6] |
Liu H T, Huang Z H, Fang M H, LiuY G and Wu X W 2015 J. Cryst. Growth 419 20
|
[7] |
Hua Y, Wan H, Chen X Y, Wu P and Bai S X 2016 Acta Phys. Sin. 65 168102 (in Chinese)
|
[8] |
Niu J J, Wang J N and Xu N S 2008 Solid State Sci. 10 618
|
[9] |
She Q, Jiang M F, Qian N and Pan Y 2014 Acta Phys. Sin. 63 185204 (in Chinese)
|
[10] |
Aldalbahi A, Li E, Rivera M, Velazquez R, Altalhi T, Peng X Y and Feng P X 2016 Sci. Rep. 6 23457
|
[11] |
Chiew Y L and Cheong K Y 2012 J. Mater. Sci. 47 5477
|
[12] |
Yu W, Wang M Z, Xie H Q, Hu Y H and Chen L F 2016 Appl. Therm. Eng. 94 350
|
[13] |
Shi W, Zheng Y, Peng H, Wang N, Lee C S and Lee S T 2000 J. Am. Ceram. Soc. 83 3228
|
[14] |
Zhou J Y, Chen Z Y, Xu X B, Zhou M, Ma Z W, Zhao J G, Li R S and Xie E Q 2010 J. Amer. Ceram. Soc. 93 488
|
[15] |
Huang J, Guo L W, Lu W, Zhang Y H, Shi Z, Jia Y P, Li Z L, Yang J W, Chen H X, Mei Z X, and Chen X L 2016 Chin. Phys. B 25 067205
|
[16] |
Yu W, Wang M Z, Xie H Q, Hu Y H, Chen L F 2016 Appl. Therm. Eng. 94 350
|
[17] |
Liu S L, Liu H T, Huang Z H, Fang M H, Liu Y G and Wu X W 2016 RSC Adv. 6 24267
|
[18] |
Dai J X, Sha J J, Zhang Z F, Wang Y C and Krenkel W 2015 Ceram. Int. 41 9637
|
[19] |
Liu Y S, Men J, Feng W, Cheng L F and Zhang L T 2014 Ceram. Int. 40 11889
|
[20] |
Kresse G and Furthmüller J 1996 Phys. Rev. B 54 11169
|
[21] |
Payne M C, Teter M P, Arias T A, Allan D C and Joannopoulos J D 1992 Rev. Mod. Phys. 64 1045
|
[22] |
Kresse G and Hafener J 1994 Phys. Rev. B 49 14251
|
[23] |
Perdew J P, Burke K and Ernzerhof M 1996 Phys. Rev. Lett. 77 3865
|
[24] |
Kresse G and Joubert D 1999 Phys. Rev. B 59 1758
|
[25] |
Perdew J P and Wang Y 1992 Phys. Rev. B 45 13244
|
[26] |
Read A J and Needs R J 1991 Phys. Rev. B 44 13071
|
[27] |
Lu B, Liu J X, Zhu H W and Jiao X H 2007 Mater. Sci. Forum. 561 1413
|
[28] |
Pan H and Feng Y P 2008 ACS Nano 2 2410
|
[29] |
Xu Y N and Ching W Y 1993 Phys. Rev. B 48 4335
|
[30] |
Wang Z L 2004 Materials Today 7 26
|
[31] |
Zou X C, Wu M S, Liu G, Ouyang C Y and Xu B 2013 Acta Phys. Sin. 62 107101 (in Chinese)
|
[32] |
Huang M H, Mao S, Feick H, Yan H Q, Wu Y Y, Kind H, Weber E, Russo R and Yang P 2001 Science 292 1897
|
[33] |
Unalan H E, Zhang Y, Hiralal P, Dalal S, Chu D, Eda G, Teo K B K, Chhowalla M and Milne W I 2009 Appl. Phys. Lett. 94 163501
|
[34] |
Gao S P and Zhu T 2012 Acta Phys. Sin. 61 137103 (in Chinese)
|
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