Study on the emission property of YBO3 with co-doping of Ce and Gd ions

Dual precipitating reagents-assisted deep blue-emitting borate and near-white oxide-based luminescent materials

“…, 5 d 2 → 2 F 5/2 at 387 nm and 5 d 1 → 2 F 7/2 at 418 nm, respectively). 10,32,53–55 Similar splitting behavior has been observed in Ce-doped YBO 3 -based phosphor materials. 10,32,53–55 These positions of broad peaks were the same, but their intensity varied slightly with the calcination temperature (Fig.…”

“…These two broad peaks may have correlated to the transitions from the excited state (5d) to the two ground states (F 5/2 and F 7/2 ) (i.e., 5 d 2 → 2 F 5/2 at 387 nm and 5 d 1 → 2 F 7/2 at 418 nm, respectively). 10,32,[53][54][55] Similar splitting behavior has been observed in Ce-doped YBO 3 -based phosphor materials. 10,32,[53][54][55] These positions of broad peaks were the same, but their intensity varied slightly with the calcination temperature (Fig.…”

“…At 1000-1400 °C, the formation of YBO 3 could be correlated with photoluminescence emission because it showed the splitting of the emission peak similar to that of Ce-doped YBO 3 . 10,32,[53][54][55] However, its contribution decreased slowly when the sample was calcined at 1500 °C for different holding times. This was observed in the emission behavior of samples calcined at 1500 °C for 1-6 h (Fig.…”

Crystal structure re‐determination, spectroscopy, and photoluminescence of π‐YBO3:Eu3+

“…The observation is consistent with the emission spectra, where the signal intensity rises slightly before 250 nm (Figure 10). The strong absorption around 160 nm is due to the optical band gap of the host YBO 3 [48] …”

“…The strong absorption around 160 nm is due to the optical band gap of the host YBO 3 . [48] A comparison of a π-YBO 3 :Eu 3 + (8 %) powder sample prepared by the high-pressure/high-temperature route and a π-YBO 3 :Eu 3 + (1 %) powder sample prepared under ambient conditions is plotted in Figure 10. Excitation (top) and emission spectra (bottom) of both samples were recorded at 3 K for different emission and excitation wavelengths, respectively.…”