Optical crystal gas detection system and porous silicon corrugated optical crystal preparation method
A gas detection system and optical crystal technology, applied in color/spectral characteristic measurement, material analysis through optical means, measurement devices, etc., can solve problems such as limited detection methods, enzyme activity life, and difficulty in popularization and use
Active Publication Date: 2014-07-02
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Traditional detection methods are limited by equipment, reagents, test conditions, high technical requirements for operation, and problems such as enzyme activity life, which are difficult to promote and use
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[0029] Porous silicon rugate optical crystal (Porous silicon rugate filter, PSRF) includes a series of optical structures whose porosity and refractive index are sinusoidal or integrated sinusoidal changes in cross-section. PSRF can emit visible light at room temperature, and has one or more very obvious The characteristic peak has a narrow half-peak width. Porous silicon wrinkled optical crystals have many superior characteristics such as large specific surface area, capillary agglutination, reusability, good shape, easy processing, and obvious optical characteristics after molecules are attached to the surface.
[0030] Such as figure 1 Shown is a schematic diagram of an optical crystal gas detection system in an embodiment. The optical crystal gas detection system 100 includes a porous silicon wrinkled optical crystal 110 , a test cavity 120 , a probe 130 and a spectrometer 140 . The porous silicon wrinkled optical crystal 100 is a simple porous silicon wrinkled optical c...
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The invention discloses an optical crystal gas detection system, which is characterized by comprising a porous silicon corrugated optical crystal, a test cavity, a probe and a spectrograph, wherein the porous silicon corrugated optical crystal is positioned in the test cavity; the porous silicon corrugated optical crystal is a simple or complex porous silicon corrugated optical crystal; the surface of the porous silicon corrugated optical crystal is exposed in the test cavity; the probe is used for detecting an optical signal sent by the porous silicon corrugated optical crystal; and the spectrograph is connected with the probe and is used for measuring the optical signal detected by the probe. By adopting the sensing system which directly consists of the test cavity and the porous silicon corrugated optical crystal, the optical crystal gas detection system has the advantages of simple processing process, easy implementation, low cost, high sensitivity, high detection speed, repeated use, no reagent problem and convenience for promotion and use. In addition, the invention also provides a porous silicon corrugated optical crystal preparation method.
Description
【Technical field】 [0001] The invention relates to a gas detection system, in particular to a gas detection system utilizing an optical crystal, and also to a preparation method of a porous silicon wrinkled optical crystal. 【Background technique】 [0002] Traditional alcohol detection methods are mainly spectrophotometry, gas chromatography, chemical method, high performance liquid chromatography, enzyme electrode method, enzyme-linked immunoassay and dye cell method. Traditional detection methods are limited by equipment, reagents, test conditions, high technical requirements for operation, and problems such as enzyme activity life, which are difficult to promote and use. [0003] Taking alcohol detection as an example, alcohol (molecular formula is C 2 h 6 O), is the main component of wine, a large number of entering the human body will cause various accidents and even life-threatening, and it is also a volatile combustible gas. With the development of science and the imp...
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IPC IPC(8): G01N21/25G01N21/01
Inventor 蔡林涛李莎黄建峰
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI