Spectral change and far-red emission of Mn2+ ions co-doped NaSrB5O9:Dy3+ luminescence material for plant growth LEDs

Ratiometric optical thermometry based on a Dy3+, Eu3+ co-doped GdAl3(BO3)4 phosphor

“…S5, ESI †). 39 The temporal behavior of Dy 3+ emission at 574 nm was monitored under 359 nm excitation to further demonstrate the energy transfer from Dy 3+ to Eu 3+ , as depicted in Fig. 7(a).…”

Novel rare earth free phosphors CsMg2P3O10: Mn2+ with efficient and ultra‐broadband red emission for plant growth LEDs

“…4,5 Red and far-red emissions can be effectively absorbed by photosynthesis pigments P R and P FR , which play a dominant role in promoting plant growth and biomass accumulation. 6,7 Nowadays, rare earth ions (such as Eu 2+ and Eu 3+ ) doped phosphors are crucial components to generated red and far-red emissions for plantgrowth LEDs. [8][9][10] Among them, the Eu 2+ -doped nitrides such as (Sr, Ca)AlSiN 3 : Eu 2+ 11 and (Sr 1-x Ca x ) 2 Si 5 N 8 : Eu 2+ 12 show the highest intensity and narrow full width at half-maximum (FWHM).…”

Modular high power plant lighting sources based on phosphor–sapphire composites with high thermal conductivity

“…Light has been confirmed to be the most important environmental factor in regulating plant physiological responses. [1][2][3][4] As a general rule, the absorption bands of photosynthesis are blue and red light, allowing chlorophyll to use light energy to provide chemical energy for promoting plant growth. [5][6][7][8] Red/ phytochrome and far-red/phytochrome can be interconverted via absorbing red and far-red light, which regulates the pattern of plant growth.…”