Photoluminescence, energy transfer, color tunable properties of Sr3La(BO3)3:Ce, Tb phosphors

Synthesis and characterization of Ca3Lu(GaO)3(BO3)4:Ce3+,Tb3+ phosphors: tunable-color emissions, energy transfer, and thermal stability

“…,Tb 3+ ) should have not only the characteristic excitation bands of the activator ions but also the characteristic 25 These results obtained from the DRS were well accordance with the PLE spectra in Fig. 3.…”

Thermally stable La2LiSbO6:Mn4+,Mg2+far-red emitting phosphors with over 90% internal quantum efficiency for plant growth LEDs

“…3(d) depicts the luminescence decay curves of the Mn 4+ ions in the LLS:xMn 4+ (x ¼ 0.1-1.5%) phosphors (l ex ¼ 338 nm; l em ¼ 712 nm). The decay curves of as-prepared samples could be well tted by the following double exponential expression: [54][55][56]…”

Hydrothermal syntheses, luminescent properties, and temperature sensing of monodisperse Tb-doped NaCeF4nanocrystals

“…where I S and I S0 are the integrated fluorescence intensities (270-370 nm) of the Ce 3+ with and without Tb 3+ doping, respectively. The ET efficiency for the NaCeF 4 :xat%Tb NCs (x=1, 3,5,10,15,20,25,30) were therefore calculated to be 10%, 16%, 45%, 63%, 71%, 78%, 88%, 95%, respectively. In Fig.…”

“…14 However, the absorption of Tb 3+ for excitation light is weak, due to the corresponding 4f-4f transitions are all parity and spin forbidden. Efficient energy transfer (ET) from Ce 3+ to Tb 3+ and bright green emission have been reported in many Ce 3+ &Tb 3+ co-doped materials, [15][16][17][18] which inspire researchers to adopt Ce 3+ and Tb 3+ combination in nano materials. These materials can downshift the ultra violet (UV) light to the visible light to overcome the poor response of photovoltaic (PV) devices to the short wavelength light.…”