Solar control glass is the glass that transmits the total incident radiation energy (total solar heat) through a high percentage of incident light and a low percentage of total incident radiation energy. One way to produce such glass is to deposit coatings containing one or more layers of various materials, especially metal oxides, such as tungsten oxide, on the glass, which are usually of sub-micron thickness.

In industrial production, friction and wear are the main causes of material damage, increasing energy consumption and mechanical equipment scrapping, which has brought serious economic losses. The purpose of lubrication is to reduce friction, wear and energy consumption. The important means of lubrication technology is the use of lubricants, which can be divided into liquid lubricants, solid lubricants and solid-liquid compatible lubricants.

Typical semiconductor metal oxides such as titanium dioxide and tungsten trioxide have become the most widely studied and applied metal oxides due to their low cost, non-toxic, harmless, stable biological and chemical properties, and light corrosion resistance.

The increasing development of modern industry not only improves people's living standards, but also brings unavoidable damage to the ecological environment. Nitric oxide (NO) emitted from organic matter decomposition, fossil fuel combustion and chemical industry is a common atmospheric pollutant, which is one of the main substances to form acid rain and photochemical smog, and has great damage to the environment. Therefore, the research of nitrogen dioxide gas sensor components has important significance and development prospects.