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29 December 2004 Pushing the limit of metal-oxide nanowire chemical sensing: selective detection of NO2 down to ppb levels
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Proceedings Volume 5593, Nanosensing: Materials and Devices; (2004) https://doi.org/10.1117/12.571592
Event: Optics East, 2004, Philadelphia, Pennsylvania, United States
Abstract
We demonstrate detection of NO2 down to ppb levels using transistors based on both single and multiple In2O3 nanowires operating at room temperature. This represents orders-of-magnitude improvement over previously reported metal oxide film or nanowire/nanobelt sensors. A comparison between the single and multiple nanowire sensors reveals that the latter have numerous advantages in terms of great reliability, high sensitivity and simplicity in fabrication. Furthermore, selective detection of NO2 can be readily achieved with multiple-nanowire sensors even with other common chemicals such as NH3, O2, CO and H2 around.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Daihua Zhang, Chao Li, Zuqin Liu, Tao Tang, Bo Lei, and Chongwu Zhou "Pushing the limit of metal-oxide nanowire chemical sensing: selective detection of NO2 down to ppb levels", Proc. SPIE 5593, Nanosensing: Materials and Devices, (29 December 2004); https://doi.org/10.1117/12.571592
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