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Doping dependent NH3 sensing of indium oxide nanowires
Abstract
NH 3 gas sensing properties of In2O3 nanowires were carefully studied. Change of conductance in opposite directions was observed with different nanowire sensors. We suggest that this differential response is caused by various doping concentrations in the semiconducting In2O3 nanowires. In addition, we have also investigated a “gate-screening effect” exhibited in our nanowire chemical sensors at high NH3 concentrations, which is induced by adsorbed NH3 molecules working as charge traps. Both the doping-dependent response and the gate-screening effect will be especially valuable and helpful for understanding the detailed sensing mechanism of semiconducting metal oxide materials.
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Citations
Cited by
Chemical Sensing and Catalysis by One‐Dimensional Metal‐Oxide Nanostructures
Kolmakov, A., & Moskovits, M. (2004) · ChemInform · doi:10.1002/chin.200441227 · Cited by 914
ZnO nanowire field-effect transistor and oxygen sensing property
Fan, Z., Wang, D., Chang, P.-C., Tseng, W.-Y., & Lu, J. G. (2004) · Applied Physics Letters · doi:10.1063/1.1836870 · Cited by 814
Metal oxide nano-crystals for gas sensing
Comini, E. (2006) · Analytica Chimica Acta · doi:10.1016/j.aca.2005.10.069 · Cited by 717
One dimensional nanostructured materials
Kuchibhatla, S. V. N. T., Karakoti, A. S., Bera, D., & Seal, S. (2007) · Progress in Materials Science · doi:10.1016/j.pmatsci.2006.08.001 · Cited by 631
Quasi-one-dimensional metal oxide materials—Synthesis, properties and applications
Lu, J. G., Chang, P., & Fan, Z. (2006) · Materials Science and Engineering: R: Reports · doi:10.1016/j.mser.2006.04.002 · Cited by 586
Metadata
- Authors
- Zhang, D., Li, C., Liu, X., Han, S., Tang, T., & Zhou, C.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2003-09-01
- Volume
- 83
- Issue
- 9
- Pages
- 1845-1847
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W1974236714
- Cited by
- 180
- References
- 0
- FWCI
- 12.74
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zhang, D., Li, C., Liu, X., Han, S., Tang, T., & Zhou, C. (2003). Doping dependent NH3 sensing of indium oxide nanowires. Applied Physics Letters. https://doi.org/10.1063/1.1604194
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