Light-emitting material for plant light-controlled development, preparation method thereof, and light-emitting device

A light-emitting device and a technology of luminescent materials, which are applied in the field of luminescent materials for plant light-controlled development and their preparation, can solve the problems of high price and lack of luminescent materials in plant growth lamps, and achieve the effects of simple manufacturing process, low production cost and extended service life
CN108929680BActive Publication Date: 2021-06-01INTELLIGENT MFG INST OF HFUT +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INTELLIGENT MFG INST OF HFUT
Publication Date
2021-06-01

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Abstract

The invention discloses a luminescent material for the light-controlled development of plants, a preparation method and a luminescent device, and relates to the fields of solid-state semiconductor lighting and photosynthetic agriculture. Plant growth lamps containing 730nm far-red light are expensive and lack the ability to convert blue light into satisfactory The problem of the luminescent material required by the plant physiological activity Pfr state is proposed, and the chemical general formula of the luminescent material of the present invention is A 3 BF 6 : Cr, wherein A is one or more of monovalent metal ions Li, Na, K, Rb or Cs, B is one or more of trivalent metal ions Al, Ga, Sc, Y or La, The beneficial effect of the present invention is that: the far-red luminescent material used in the light-controlled development of plants provided by the present invention has an emission wavelength that matches the absorption wavelength of the physiologically active Pfr state of plant phytochrome, and the LED device packaged with the far-red fluorescent material is more The production cost of using the far-red LED chip is low, the service life of the existing LED blue light chip growth process and equipment can be extended, the preparation method is simple, and the production cost can be reduced.
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Description

technical field

[0001] The invention relates to the fields of solid-state semiconductor lighting and photosynthetic agriculture, in particular to a luminescent material used for light-controlled growth of plants and its preparation method and application. Background technique

[0002] Light is not only the energy source for plant photosynthesis, but also acts as an important environmental signal source to regulate plant photomorphogenesis, gene expression, enzyme activity and metabolism. Optical agriculture mainly uses artificial light sources to provide nutrients for photosynthesis or regulate plant germination, growth, flowering and other activities through photoperiod to promote growth and increase productivity. The process of light-controlled plant growth, development and differentiation is usually called photomorphogenesis, also known as photo-controlled development.

[0003] Photomorphogenesis and photosynthesis in plants are two independent processes. In the process...

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
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