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Physical model for the exotic ultraviolet photo-conductivity of ZnO nanowire films |
Pan Yue-Wu (潘跃武)a, Ren Shou-Tian (任守田)b, Qu Shi-Liang (曲士良)b, Wang Qiang (王强)b |
a Mathematics and Physical Sciences Technology, Xuzhou Institute of Technology, Xuzhou 221008, China; b Department of Optoelectronic Science, Harbin Institute of Technology at Weihai, Weihai 264209, China |
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Abstract Employing a simple and efficient method of electro-chemical anodization, ZnO nanowire films are fabricated on Zn foil, and an ultraviolet (UV) sensor prototype is formed for investigating the electronic transport through back-to-back double junctions. The UV (365 nm) responses of surface-contacted ZnO film are provided by I–V measurement, along with the current evolution process by on/off of UV illumination. In this paper, the back-to-back metal–seconductor–metal (M–S–M) model is used to explain the electronic transport of a ZnO nanowire film based structure. A thermionic-field electron emission mechanism is employed to fit and explain the as-observed UV sensitive electronic transport properties of ZnO film with surface-modulation by oxygen and water molecular coverage.
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Received: 18 May 2013
Revised: 08 July 2013
Accepted manuscript online:
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PACS:
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81.16.Be
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(Chemical synthesis methods)
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81.07.Gf
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(Nanowires)
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72.10.-d
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(Theory of electronic transport; scattering mechanisms)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11274082 and 51172194) and the Excellent Young Scientist Research Award Fund of Shandong Province, China (Grant No. BS2011CL002). |
Corresponding Authors:
Wang Qiang
E-mail: wq750505@hotmail.com
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Cite this article:
Pan Yue-Wu (潘跃武), Ren Shou-Tian (任守田), Qu Shi-Liang (曲士良), Wang Qiang (王强) Physical model for the exotic ultraviolet photo-conductivity of ZnO nanowire films 2013 Chin. Phys. B 22 118102
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[1] |
Mubeen S and Moskovits M 2011 Adv. Mater. 23 2306
|
[2] |
Fan Z, Wang D W, Chang P C, Tseng W Y and Lu J G 2004 Appl. Phys. Lett. 85 5923
|
[3] |
Ramgir N S, Yang Y and Zacharias M 2010 Small 6 1705
|
[4] |
Huang J X, Virji S, Weiller B H and Kaner R B 2003 J. Am. Chem. Soc. 125 314
|
[5] |
Hu L F, Yan J, Liao M Y, Wu M and Fang X S 2011 Small 7 1012
|
[6] |
Li Y B, Valle F D, Simonnet M, Yamada I and Delaunay J J 2009 Nanotechnology 20 045501
|
[7] |
Cheng G, Wu X H, Liu B, Li B, Zhang X T and Du Z L 2011 Appl. Phys. Lett. 99 203105
|
[8] |
Hu Y F, Zhou J, Yeh P H, Li Z, Wei T Y and Wang Z L 2010 Adv. Mater. 22 3327
|
[9] |
Li C, Bando Y, Liao M Y, Koide Y and Golberg D 2010 Appl. Phys. Lett. 97 161102
|
[10] |
Wang S J, Lu W J, Cheng G, Cheng K, Jiang X H and Du Z L 2009 Appl. Phys. Lett. 94 263106
|
[11] |
Mor G K, Shankar K, Paulose M, Varghese O K and Grimes C A 2006 Nano Lett. 6 215
|
[12] |
Huang J and Wan Q 2009 Sensor 9 9903
|
[13] |
Pearton S J and Ren F 2013 Nanomater. Nanotechnol. 3 1
|
[14] |
Ren S T, Wang Q, Zhao F and Qu S L 2012 Chin. Phys. B 21 038104
|
[15] |
Wang Q, Pan Y Z, Huang S S, Ren S T, Li P and Li J J 2011 Nanotechnology 22 025501
|
[16] |
Liu Y, Wang S, Zhang Z Y and Peng L M 2008 Appl. Phys. Lett. 92 033102
|
[17] |
Zhang Z Y, Jin C H, Liang X L, Chen Q and Peng L M 2006 Appl. Phys. Lett. 88 073102
|
[18] |
Liao Z M, Liu K J, Zhang J M, Xu J and Yu D P 2007 Phys. Lett. A 367 207
|
[19] |
Liao Z M, Hou C, Zhou Y B, Xu J, Zhang J M and Yu D P 2009 J. Chem. Phys. 130 084708
|
[20] |
Wang Q, Gao R X, Qu S L, Li J J and Gu C Z 2009 Nanotechnology 20 145201
|
[21] |
Liao M Y, Wang X, Teraji T, Koizumi S and Koide Y 2010 Phys. Rev. B 81 033304
|
[22] |
Fábrega C, Hernández-Ramírez F, Prades J D, Jiménez-Díaz R, Andreu T and Morante J R 2010 Nanotechnology 21 445703
|
[23] |
Nowotny M K, Sheppard L R, Bak T and Nowotny J 2008 J. Phys. Chem. C 112 5275
|
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