The northwest region is limited by natural geographical and climatic conditions. The crops can grow in a short period of time in a year, and the total crop yield is relatively low, but the light is sufficient. How to make full use of the characteristics of strong sunlight and sufficient sunlight can increase the efficiency of sunlight utilization, thereby increasing the time of growth of crops, improve crop yield and quality, it is necessary to develop a new light conversion material. The "development of solar light conversion film for special plants" project of Gansu Yinian Trading Co., Ltd. is expected to solve this problem.

Internationally, research on promoting plant growth through new materials and LED grow lights has been carried out. Traditional plant growth phosphors usually use LED grow lights. In order to achieve good results in promoting the growth of economic crops, LED grow lights mainly emit plants. Blue and red light required for growth. In addition to high-cost nitride phosphors and high-cost LED devices, LED grow lights also require power supply and a building or greenhouse in order to provide lighting for plants, which makes LED grow lights very expensive. Although LED grow lights can improve crop yields, the low cost of general crops makes it difficult to use LED grow lights widely. On the other hand, in the method of converting the white light of the sun into red light through a light-emitting material, attempts have been made to use a vinyl film containing an organic red light-emitting material such as a heterocyclic compound. In sunlight, however, these degenerate within 3 months due to the instability in the sun.

New luminescent materials need to be developed according to industrial practice and to accelerate plant growth by using light of a specific color, such as red or deep red light. The research of the "Development of Solar Light Conversion Film for Special Plants" project is to convert light that is useless for plant growth into light that can promote plant growth through new phosphor materials, for example, using light of a specific color (such as red or dark) red light) to speed up plant growth. Based on this, a new luminescent material, that is a new type of phosphor, is developed. The new type of fluorescent powder has the following characteristics: First, the new cheap and stable inorganic oxide phosphor is different from the high-cost nitride phosphor, which is different from the Very unstable organic light-emitting material. Second, phosphors are efficiently excited by the sun's visible light and then efficiently produce deep red light, whereas conventional red-producing oxide phosphors are primarily excited only by the sun's near-ultraviolet light. The special plant phosphor and its light conversion film developed in this project can improve the utilization efficiency of light energy by plants, promote plant photosynthesis, increase yield by 1.32 times, and improve crop fruit quality.

The process cost is about one-tenth of the LED factory, the cost is low, the product characteristics are stable, and the service life is long. Considering the production cost and economic benefits, it has a broad market application prospect. In addition, if the product is promoted in the national market, it can not only improve the growth efficiency of crops, but also reduce the use of chemical fertilizers. By using sunlight to achieve organic planting, it can provide hundreds of millions of consumers with green, safe and healthy products. In the agricultural development, the excessive use of chemical fertilizers, serious land pollution, and excessive heavy metals in agricultural products have been encountered.