Plant laser lighting fluorescent glass-ceramics and preparation method thereof

Abstract

Plant laser lighting fluorescent glass-ceramics is composed of 5-30wt% of red fluorescent powder and the balance of a glass matrix; the red fluorescent powder emits 660nm wide spectrum deep red light under excitation of a blue laser light source, the full width at half maximum is wider than 60nm; and red fluorescent powder crystalline grains are uniformly embedded in the glass matrix. The advantages of the plant laser lighting fluorescent glass-ceramics are that: the fluorescent glass-ceramics emits high brightness 660nm wide spectrum red light under excitation of a blue semiconductor laser, partly-transmitted-out blue laser and the red light emitted by the fluorescent glass-ceramics are matched with effective spectrum of plant photosynthesis, at the same time, the plant laser lighting fluorescent glass-ceramics can obtain a high brightness plant laser lighting source under excitation of high energy density laser, and has potential application in the fields such as a plant factory, vertical planting, a greenhouse, a glass cultivation room, and the like.

Description

【Technical field】

[0001] The invention relates to the field of solid luminescent materials, in particular to a fluorescent glass-ceramic for plant laser lighting and a preparation method thereof. 【Background technique】

[0002] Plants are not as sensitive to the light spectrum as the human eye. The most sensitive spectrum of the human eye is 555nm, between yellow-green light. Sensitivity to blue and red light areas is poor. Plants, on the other hand, are most sensitive to the red and blue light spectrum. The blue light and red light in the solar spectrum have the greatest impact on the photosynthesis of plants, commonly known as the photosynthetic active spectrum.

[0003] Therefore, as an artificial supplementary light source for plant growth, the spectral distribution of the light source should also be close to this range. Traditional supplementary light sources such as incandescent lamps and fluorescent lamps have the disadvantages of spectral mismatch and high energy...

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