Double perovskite Ba2LaNbO6:Mn4+,Yb3+ phosphors: Potential application to plant-cultivation LEDs

Short review on recent progress in Mn4+‐activated oxide phosphors for indoor plant light‐emitting diodes

“…Lu and his co‐workers [ 55 ] also co‐doped Yb 3+ in Ba 2 LaNbO 6 (BLN):Mn 4+ phosphors. The emission peak centered at 677 nm was due to Mn 4+ ions, and peak centered at 998 nm was due to Yb 3+ ions.…”

A review on the structural dependent optical properties and energy transfer of Mn4+ and multiple ion-codoped complex oxide phosphors

“…The emission centered at 998 nm is consistent with the infrared light needed for bacterial chlorophyll. 22,84 The intensity of the Mn 4+ emission at 677 nm decreases, while that of the Yb 3+ emission at 998 nm increases due to the transfer of energy from Mn 4+ to Yb 3+ . Fig.…”

“…To meet the requirement in lighting for indoor plant cultivation, blue-violet light in wavelength range of 420-500 nm is indispensable for chlorophyll A and chlorophyll B, and red-far red light in wavelength range of 640-750 nm is indispensable for phytochrome PR and phytochrome PFR. [19][20][21][22][23][24] The fabrication of red Mn 4+ -doped phosphors in blue LED chip results in a superior performance in lighting for indoor plant cultivation due to the blue light from LED chips and red light from Mn 4+ -doped luminescence materials excited by blue light. This type of light device is a promising light source for large scale industrial application because of the energy saving and long working time of LEDs, and low cost of Mn 4+ -doped luminescence materials.…”

Optical properties of the CaEuAl3O7 phosphor with dual‐activator Eu2+/Eu3+ for multifunctional applications

“…During photosynthesis, the basic need for light of carotenoids and chlorophylls distributes in blue (400‐500 nm) and red (600‐690 nm) regions 13‐16 . Therefore, the combination of artificial light with blue and red light plays an extremely vital role in the growth and development of crops 17‐19 . However, people still face a spectrum mismatch defect in the commonly used plant lighting.…”

“…[13][14][15][16] Therefore, the combination of artificial light with blue and red light plays an extremely vital role in the growth and development of crops. [17][18][19] However, people still face a spectrum mismatch defect in the commonly used plant lighting. So there is an urgent need to develop phosphors whose spectrum meets various requirements for plant growth to achieve the adjustment of artificial light sources.…”