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Novel Self-Heated Gas Sensors Using on-Chip Networked Nanowires with Ultralow Power Consumption.
ACS Appl Mater Interfaces 2017; 9(7):6153-6162AA

Abstract

The length of single crystalline nanowires (NWs) offers a perfect pathway for electron transfer, while the small diameter of the NWs hampers thermal losses to tje environment, substrate, and metal electrodes. Therefore, Joule self-heating effect is nearly ideal for operating NW gas sensors at ultralow power consumption, without additional heaters. The realization of the self-heated NW sensors using the "pick and place" approach is complex, hardly reproducible, low yield, and not applicable for mass production. Here, we present the sensing capability of the self-heated networked SnO2 NWs effectively prepared by on-chip growth. Our developed self-heated sensors exhibit a good response of 25.6 to 2.5 ppm NO2 gas, while the response to 500 ppm H2, 100 ppm NH3, 100 ppm H2S, and 500 ppm C2H5OH is very low, indicating the good selectivity of the sensors to NO2 gas. Furthermore, the detection limit is very low, down to 82 parts-per-trillion. As-obtained sensing performance under self-heating mode is nearly identical to that under external heating mode. While the power consumption under self-heating mode is extremely low, around hundreds of microwatts, as scaled-down the size of the electrode is below 10 μm. The selectivity of the sensors can be controlled simply by tuning the loading power that enables simple detection of NO2 in mixed gases. Remarkable performance together with a significantly facile fabrication process of the present sensors enhances the potential application of NW sensors in next generation technologies such as electronic noses, the Internet of Things, and smartphone sensing.

Authors+Show Affiliations

International Training Institute for Materials Science, Hanoi University of Science and Technology , No 1 Dai Co Viet Road, Hai Ba Trung, 10000 Hanoi, Vietnam.International Training Institute for Materials Science, Hanoi University of Science and Technology , No 1 Dai Co Viet Road, Hai Ba Trung, 10000 Hanoi, Vietnam.International Training Institute for Materials Science, Hanoi University of Science and Technology , No 1 Dai Co Viet Road, Hai Ba Trung, 10000 Hanoi, Vietnam.Department of Engineering Sciences, Division of Microsystem Technology, Uppsala University , Lägerhyddsvägen 1, 751 21 Uppsala, Sweden.International Training Institute for Materials Science, Hanoi University of Science and Technology , No 1 Dai Co Viet Road, Hai Ba Trung, 10000 Hanoi, Vietnam.International Training Institute for Materials Science, Hanoi University of Science and Technology , No 1 Dai Co Viet Road, Hai Ba Trung, 10000 Hanoi, Vietnam.International Training Institute for Materials Science, Hanoi University of Science and Technology , No 1 Dai Co Viet Road, Hai Ba Trung, 10000 Hanoi, Vietnam.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28121124

Citation

Tan, Ha Minh, et al. "Novel Self-Heated Gas Sensors Using on-Chip Networked Nanowires With Ultralow Power Consumption." ACS Applied Materials & Interfaces, vol. 9, no. 7, 2017, pp. 6153-6162.
Tan HM, Manh Hung C, Ngoc TM, et al. Novel Self-Heated Gas Sensors Using on-Chip Networked Nanowires with Ultralow Power Consumption. ACS Appl Mater Interfaces. 2017;9(7):6153-6162.
Tan, H. M., Manh Hung, C., Ngoc, T. M., Nguyen, H., Duc Hoa, N., Van Duy, N., & Hieu, N. V. (2017). Novel Self-Heated Gas Sensors Using on-Chip Networked Nanowires with Ultralow Power Consumption. ACS Applied Materials & Interfaces, 9(7), pp. 6153-6162. doi:10.1021/acsami.6b14516.
Tan HM, et al. Novel Self-Heated Gas Sensors Using on-Chip Networked Nanowires With Ultralow Power Consumption. ACS Appl Mater Interfaces. 2017 Feb 22;9(7):6153-6162. PubMed PMID: 28121124.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Novel Self-Heated Gas Sensors Using on-Chip Networked Nanowires with Ultralow Power Consumption. AU - Tan,Ha Minh, AU - Manh Hung,Chu, AU - Ngoc,Trinh Minh, AU - Nguyen,Hugo, AU - Duc Hoa,Nguyen, AU - Van Duy,Nguyen, AU - Hieu,Nguyen Van, Y1 - 2017/02/09/ PY - 2017/1/26/pubmed PY - 2017/1/26/medline PY - 2017/1/26/entrez KW - NO2 gas KW - SnO2 nanowires KW - low power sensors KW - networked nanowires KW - self-heating SP - 6153 EP - 6162 JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces VL - 9 IS - 7 N2 - The length of single crystalline nanowires (NWs) offers a perfect pathway for electron transfer, while the small diameter of the NWs hampers thermal losses to tje environment, substrate, and metal electrodes. Therefore, Joule self-heating effect is nearly ideal for operating NW gas sensors at ultralow power consumption, without additional heaters. The realization of the self-heated NW sensors using the "pick and place" approach is complex, hardly reproducible, low yield, and not applicable for mass production. Here, we present the sensing capability of the self-heated networked SnO2 NWs effectively prepared by on-chip growth. Our developed self-heated sensors exhibit a good response of 25.6 to 2.5 ppm NO2 gas, while the response to 500 ppm H2, 100 ppm NH3, 100 ppm H2S, and 500 ppm C2H5OH is very low, indicating the good selectivity of the sensors to NO2 gas. Furthermore, the detection limit is very low, down to 82 parts-per-trillion. As-obtained sensing performance under self-heating mode is nearly identical to that under external heating mode. While the power consumption under self-heating mode is extremely low, around hundreds of microwatts, as scaled-down the size of the electrode is below 10 μm. The selectivity of the sensors can be controlled simply by tuning the loading power that enables simple detection of NO2 in mixed gases. Remarkable performance together with a significantly facile fabrication process of the present sensors enhances the potential application of NW sensors in next generation technologies such as electronic noses, the Internet of Things, and smartphone sensing. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/28121124/Novel_Self_Heated_Gas_Sensors_Using_on_Chip_Networked_Nanowires_with_Ultralow_Power_Consumption_ L2 - https://dx.doi.org/10.1021/acsami.6b14516 DB - PRIME DP - Unbound Medicine ER -