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LE NGOC LIEM1,2,* , DO THANH TIEN3
- Faculty of Natural Sciences, Duy Tan University, Da Nang, 550000, Vietnam
- Institute of Research and Development, Duy Tan University, DaNang, 550000, Vietnam
- Faculty of Engineering and Technology, University of Agriculture and Forestry, Hue University, Vietnam
Luminescent materials, Ca2Al2SiO7:Ce3+, Dy3+and CaAl2O4:Mn4+were synthesised by solid phase reaction. The red luminescence of CaAl2O4: Mn4+shows an asymmetric broadband peak at 650 nm corresponding to the characteristic luminescence of Mn4+ions. The luminescent spectra of Ca2Al2SiO7:Ce3+, Dy3+phosphors consist of a broadband peak at 420 nm corresponding to the luminescence of Ce3+ions and narrow lines of Dy3+ions. When mixing Ca2Al2SiO7:Ce3+, Dy3+and CaAl2O4: Mn4+materials, the luminescence spectrum was consistent with the absorption maximum of chlorophyll aand chlorophyll b. Therefore, the material could be used in lighting technology for agriculture, tissue culture and transplanting. Moreover, Nano silver solution is synthesized from Paederia foetida L. leaf extract and silver nitrate solution. Nano silver solutions can be used to kill fungus as well as bacteria and to increase the light absorbance of chlorophyl.
Luminescent, Agricultural lighting, The absorption spectrum of chlorophyll, Nano silver.
Submitted at: Aug. 20, 2020
Accepted at: June 11, 2021
LE NGOC LIEM, DO THANH TIEN, Synthesis and characterisation of material for high-tech agricultural applications, Journal of Optoelectronics and Advanced Materials Vol. 23, Iss. 5-6, pp. 293-298 (2021)
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