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Adsorption-controlled transition of the electrical properties realized in Hematite (alpha-Fe2O3) nanorods ethanol sensing |
| Wang Chong(王翀)a)†, Wang Fei-Fei(王菲菲)b), Fu Xing-Qiu(付星球)c), Zhang En-Di(张恩迪)d), and Xu Zhi(许志) d) |
| a School of Opto-electronic Information Science and Technology, Yantai University, Yantai 264005, China; b School of Physics, Ludong University, Yantai 264025, China; c Mathematics and Physics Department, North China Electric Power University, Beijing 102206, China; d Micro-Nano Technologies Research Center, Hunan University, Changsha 410082, China |
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Abstract Alpha-Fe2O3 nanorods are synthesized through a hydrothermal method with no surfactant introduced and ethanol sensors are fabricated from these nanorods. The device can respond to ethanol vapour in a concentration range from 1 to 1500 parts per million and shows both p-type and n-type responding characteristics during the investigation of the ethanol sensing. The sensor displays a p-type characteristic when the ethanol concentration is low and converted into an n-type characteristic as the concentration exceeds a certain value. Such a phenomenon is attributed to the chemisorbed oxygen, which leads to different modifications of the energy band at the surface, namely, depletion layer or inversion layer.
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Received: 16 October 2010
Revised: 16 December 2010
Accepted manuscript online:
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PACS:
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07.07.Df
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(Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing)
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73.63.Bd
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(Nanocrystalline materials)
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81.07.Bc
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(Nanocrystalline materials)
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| Fund: Project supported by the National Basic Research Program of China (Grant No. 2007CB310500), the National Natural Science Foundation of China (Grant No. 90606009), the Funds for Doctor of Yantai University, China (Grant No. WL08B8), the Funds for Doctor of Ludong University, China (Grant No. LY20082802), and the Natural Science Foundation of Hunan Province, China (Grant No. 10JJ1011). |
Cite this article:
Wang Chong(王翀), Wang Fei-Fei(王菲菲), Fu Xing-Qiu(付星球), Zhang En-Di(张恩迪), and Xu Zhi(许志) Adsorption-controlled transition of the electrical properties realized in Hematite (alpha-Fe2O3) nanorods ethanol sensing 2011 Chin. Phys. B 20 050701
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| [1] |
Yang Y R, Yan X H, Guo Z H and Deng Y X 2008 Chin. Phys. B 17 3433
|
| [2] |
Ma W G, Wang H D, Zhang X and Takahashi Koji 2009 Chin. Phys. B 18 2035
|
| [3] |
Liu C M, Fang L M and Zu X T 2009 Acta Phys. Sin. 58 936 (in Chinese)
|
| [4] |
Huang J Z, Li S S and Feng X P 2010 Acta Phys. Sin. 59 5839 (in Chinese)
|
| [5] |
Batzill M and Diebold U 2005 Prog. Surf. Sci. 79 47
|
| [6] |
Collins P G, Bradley K, Ishigami M and Zettl A 2000 Science 287 10
|
| [7] |
Ogawa H, Nishikawa M and Abe A 1982 J. Appl. Phys. 53 4448
|
| [8] |
Lin H M, Hsu C M, Yang H Y, Lee P Y and Yang C C 1994 Sens. Actua. B 22 63
|
| [9] |
Zamborini F P, Leopold M C, Hicks J F, Kulesza P J, Malik M A and Murray R W 2002 J. Am. Chem. Soc. 124 8958
|
| [10] |
Wan Q, Li Q H, Chen Y J, Wang T H, He X L, Li J P and Lin C L 2004 Appl. Phys. Lett. 84 3654
|
| [11] |
Li Q H, Liang Y X, Wan Q and Wang T H 2004 Appl. Phys. Lett. 85 6389
|
| [12] |
Ying Z, Wan Q, Song Z T and Feng S L 2004 Nanotechnology 15 1682
|
| [13] |
Feng P, Wan Q and Wang T H 2005 Appl. Phys. Lett. 87 213111
|
| [14] |
Scott R W J, Yang S M, Chabanis G, Coombs N, Williams D E and Ozin G A 2001 Adv. Mater. 13 1468
|
| [15] |
Chen Y J, Xue X Y, Wang Y G and Wang T H 2005 Appl. Phys. Lett. 87 233503
|
| [16] |
Xue X Y, Chen Y J, Wang Y G and Wang T H 2005 Appl. Phys. Lett. 86 233101
|
| [17] |
Kong X and Li Y 2005 Sens. Actua. B 105 449
|
| [18] |
Bielanski A, Deren J and Haber J 1957 Nature 179 668
|
| [19] |
B^arsan N, Grigorovici R, Ionescu R, Motronea M and Vancu A 1989 Thin Solid Films 171 53
|
| [20] |
Savage N, Chwieroth B, Ginwalla A, Patton B R, Akbar A and Dutta P K 2001 Sens. Actua. B 79 17
|
| [21] |
Korotcenkov G, Brinzari V, Golovanov V, Cerneavschi A, Matolin V and Todd A 2004 Appl. Surf. Sci. 227 122
|
| [22] |
Mohanty S and Ghose J 1992 J. Phys. Chem. Sol. 53 81
|
| [23] |
Fan Z Y, Wen X G, Yang S H and Lu J G 2005 Appl. Phys. Lett. 87 013113
|
| [24] |
Musi'c S, V'ertes A, Simmons G W, Czakl'o-nangy I and Leiodheioser H 1982 J. Coll. Interf. Sci. 85 256
|
| [25] |
Goti'c M, Popovi'c S, Ljubevsi'c N and Musi'c S 1994 J. Mater. Sci. 29 2474
|
| [26] |
Wang C, Fu X Q, Xue X Y, Wang Y G and Wang T H 2007 Nanotechnology 18 145506
|
| [27] |
Gao T and Wang T H 2005 Appl. Phys. A 80 1451
|
| [28] |
Kiss G, Pint'er Z, Perczel I V, Sassi Z and R'eti F 2001 Thin Solid Films 391 216 endfootnotesize
|
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