Journal of the Optical Society of Korea

  • 제17권5호
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  • Pages.423-427
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  • 2013
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  • 1226-4776(pISSN)
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  • 2093-6885(eISSN)
한국광학회 (Optical Society of Korea)
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Nano-porous Silicon Microcavity Sensors for Determination of Organic Fuel Mixtures

  • 투고 : 2013.07.01
  • 심사 : 2013.09.03
  • 발행 : 2013.10.25
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초록

We present the preparation and characteristics of liquid-phase sensors based on nano-porous silicon multilayer structures for determination of organic content in gasoline. The principle of the sensor is a determination of the cavity-resonant wavelength shift caused by refractive index change of the nano-porous silicon multilayer cavity due to the interaction with liquids. We use the transfer matrix method (TMM) for the design and prediction of characteristics of microcavity sensors based on nano-porous silicon multilayer structures. The preparation process of the nano-porous silicon microcavity is based on electrochemical etching of single-crystal silicon substrates, which can exactly control the porosity and thickness of the porous silicon layers. The basic characteristics of sensors obtained by experimental measurements of the different liquids with known refractive indices are in good agreement with simulation calculations. The reversibility of liquid-phase sensors is confirmed by fast complete evaporation of organic solvents using a low vacuum pump. The nano-porous silicon microcavity sensors can be used to determine different kinds of organic fuel mixtures such as bio-fuel (E5), A92 added ethanol and methanol of different concentrations up to 15%.

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참고문헌

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피인용 문헌

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  2. A Vapor Sensor Based on a Porous Silicon Microcavity for the Determination of Solvent Solutions vol.18, pp.4, 2014, https://doi.org/10.3807/JOSK.2014.18.4.301
  3. Fabrication of micro-ridge long-period gratings inscribed on polarization-maintaining fibers vol.9, pp.1, 2014, https://doi.org/10.1186/1556-276X-9-39
  4. Progress in the research and development of photonic structure devices vol.7, pp.1, 2016, https://doi.org/10.1088/2043-6262/7/1/015003
  5. Nanoporous silicon microcavity based optical sensor to detect adulteration of petrol by organic solvents vol.47, pp.7, 2015, https://doi.org/10.1007/s11082-014-0107-9
  6. Determination of low solvent concentration by nano-porous silicon photonic sensors using volatile organic compound method pp.1479-487X, 2019, https://doi.org/10.1080/09593330.2018.1474268