Development of gas sensors

- Jun 13, 2018 -

First, the research and development of new gas sensitive material and manufacture technology are emphasized The research on the gas sensor materials shows that the metal oxide semiconductor material Zno,sio2,fe2o3 has matured, especially in the gas detection of C ratio and C2h5oh,co.

This is done in two main directions:

1, the use of Chemical modification method, the existing gas-sensitive membrane materials for doping, modification and surface modification, and to improve and optimize the film-forming process to improve the stability and selectivity of gas sensors; 2, is the development of new gas-sensitive membrane materials, such as composite and hybrid semiconductor gas-sensitive materials, polymer gas-sensitive materials, making these new materials for different gases with high sensitivity, high selectivity, high stability.

Because the organic macromolecule sensitive material has the advantages of rich material, low cost, simple film making process, easy compatibility with other technologies and working at room temperature, it has become the research hotspot.

Development of new gas sensor With the traditional principle of action and some new effects, the first use of crystalline materials (silicon, quartz, ceramics, etc.), the use of advanced processing technology and micro-structure design, the development of new sensors and sensor systems, such as optical waveguide gas sensors, polymer acoustic surface wave and quartz resonant gas sensor development and use, Research on microbial gas sensors and bionic gas sensors. With the application of new materials, processes and new technologies, the performance of gas sensors is more perfect, so that the miniaturization of sensors, micro and multi-functional has a long-term stability, easy to use, low prices and so on.

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