Difunctional light conversion agent for agricultural film and preparation method thereof

A dual-function light-transforming agent and light-converting technology, applied in chemical instruments and methods, luminescent materials, etc., can solve problems such as poor deliquescence resistance, fast fluorescence decay, and poor compatibility, and achieve improved blue light luminescence intensity and preparation The method is simple and the effect of expanding the absorption range
CN101845302AInactive Publication Date: 2010-09-29SOUTH CHINA AGRI UNIV
1 Cites 15 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA AGRI UNIV
Publication Date
2010-09-29
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a difunctional light conversion agent, which has a general expression of the formula (I): Ca1-x-yBaxSryF2:Eu, TM; in the formula (I), x is not less than 0 and not greater than 1, y is not less than 0 and not greater than 1, TM is one or more of Sm, Cu, Pr, Tb, Ce, La, Dy, Mn and Ag. The difunctional light conversion agent of the invention is prepared by adopting an alkaline earth fluoride as a substrate, Eu as an activator and a metal ion as a sensitizer, which has good stability, high luminous intensity and adjustable blue / blood orange light intensity, and can convert the 300 nm-380 nm ultraviolet light and the 520 nm-560 nm green light in the sunlight into the 400 nm-500 nm strong blue light and the 575 nm-630 nm red orange light. The invention widens the ultraviolet light absorption range of the light conversion agent, enhances the luminous intensity of blue light and is applicable to industrial popularization.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of inorganic functional materials, and in particular relates to a new class of dual-function light-changing agents and their preparation methods and applications. Background technique

[0002] As we all know, light is the energy source of all life on earth, the origin and evolution of life cannot be separated from light, and the structure and function of organisms are also strongly affected by light. The results of plant physiology research show that 90% of the dry matter weight of crops comes from photosynthesis. The wavelength of sunlight vertically incident on the ground is 280nm-3000nm, not all wavelengths of light can be used by plants. The absorption spectrum of chlorophyll α and β has two peak areas: blue light area (400-480nm) and red-orange area (600-680nm), indicating that blue-violet light and red-orange light are meaningful for photosynthesis.

[0003] Plant physiology studies have shown that d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More