Recent Trends of Light-enhanced Metal Oxide Gas Sensors: Review
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Recent light-enhanced metal oxide gas sensors are reviewed in this article. The basic mechanisms of a light-enhanced metaloxide gas sensor are discussed. Many literatures reveal that the standalone sensitivity and the response/recovery time enhancements enabled by the exposing light are not as high as the performance enhancement provided by external heating. Therefore, both optimal amount of external heating and exposed light intensity are necessary to increase the performance of these light-enhanced gas sensors. The development of highly light sensitive materials and structures is important to lower the overall power consumptions of the sensors.
Abstract
Recent light-enhanced metal oxide gas sensors are reviewed in this article. The basic mechanisms of a light-enhanced metaloxide gas sensor are discussed. Many literatures reveal that the standalone sensitivity and the response/recovery time enhancements enabled by the exposing light are not as high as the performance enhancement provided by external heating. Therefore, both optimal amount of external heating and exposed light intensity are necessary to increase the performance of these light-enhanced gas sensors. The development of highly light sensitive materials and structures is important to lower the overall power consumptions of the sensors.
참고문헌 (22)
- Q. Geng, "Gas sensing property of ZnO under visible light irradiation at room temperature", Sens. Actuators, B, 188, pp.293~297 (2013)
- C. Shao, "High performance of nanostructured ZnO film gas sensor at room temperature", Sens. Actuators, B, 204, pp.666~672 (2014)
- J. Sun, "UV-activated room temperature metal oxide based gas sensor attached with reflector", Sens. Actuators, B, 169, pp.291~296 (2012)
- S. Park, "UV-Enhanced NO2gas sensing properties of SnO2-Core", ZnO-shell nanowires at room temperature, 2013, pp.5, 4285~4292
- E. Comini, "UV light activation of tin oxide thin films for NO2 sensing at low temperatures", Sens. Actuators, B, 78, pp.73~77 (2001)
- W. Göpel, "SnO2 sensors : current status and future prospects", Sens. Actuators, B, 26, pp.1~12 (1995)
- C. Wang, "Metal oxide gas sensors : Sensitivity and influencing factors", Sensors, 10, pp.2088~ (2010)
- S. Park, "Synthesis, structure, and UV-enhanced gas sensing properties of Au-functionalized ZnS nanowires", Sens. Actuators, B, 188, pp.1270~1276 (2013)
- J. D. Prades, "Equivalence between thermal and room temperature UV lightmodulated responses of gas sensors based on individual SnO2 nanowires", Sens. Actuators, B, 140, pp.337~341 (2009)
- Y. Gui, "Study on TiO2-doped ZnO thick film gas sensors enhanced by UV light at room temperature", Microelectron. J, 39, pp.1120~1125 (2008)
- J. -H. Lin, "Twophoton resonance assisted huge nonlinear refraction and absorption in ZnO thin films", J. Appl. Phys., 97, pp.033526~ (2005)
- C. F. Zhang, "Femtosecond pulse excited two-photon photoluminescence and second harmonic generation in ZnO nanowires", Appl. Phys. Lett., 89, pp.042117~ (2006)
- J. Zhai, "Enhancement of gas sensing properties of CdS Nanowire", ZnO nanosphere composite materials at room temperature by visible-light activation, 2011, pp.3, 2253~2258
- B. P. J. de Lacy Costello, "Highly sensitive room temperature sensors based on the UV-LED activation of zinc oxide nanoparticles", Sens. Actuators, B, 134, pp.945~952 (2008)
- E. Comini, "SnO2RGTO UV activation for CO monitoring", IEEE Sens. J, 4, pp.17~20 (2004)
- S. -W. Fan, "UV-activated room-temperature gas sensing mechanism of polycrystalline ZnO", Appl. Phys. Lett., 95, pp.142106~ (2009)
- D. Yang, "Fabrication of heterogeneous nanomaterial array by programmable heating and chemical supply within microfluidic platform towards multiplexed gas sensing application", Sci. Rep., 5, pp.8149~ (2015)
- J. -U. Park, "High-resolution electrohydrodynamic jet printing", Nat. Mater, 6, pp.782~789 (2007)
- M. A. Meitl, "Transfer printing by kinetic control of adhesion to an elastomeric stamp", Nat. Mater, 5, pp.33~38 (2006)
- L. Peng, "Light induced enhancing gas sensitivity of copper-doped zinc oxide at room temperature", Sens. Actuators, B, 131, pp.660~664 (2008)
- Y. Mun, "NO2 gas sensing properties of Au-functionalized porous ZnO nanosheets enhanced by UV irradiation", Ceram. Int, 39, pp.8615~8622 (2013)
- O. Lupan, "Selective hydrogen gas nanosensor using individual ZnO nanowire with fast response at room temperature", Sens Actuators, B, 144, pp.56~66 (2010)