An insight of luminescence properties of Bi3+-activated K2BaCa(PO4)2 phosphors

Multiple Color Emission of Mechanoluminescence and Photoluminescence from SrZnSO: Bi3+ for Multimode Anticounterfeiting

“…Consequently, the Rc is estimated to be 15.4 Å, which is quite similar to the results reported in other Bi-activated materials [36,37]. When concentration quenching effect occurs in Sr1-xBixZnSO phosphors, the electrical multipole interaction between the Bi 3+ ions play a major role [26,35]. As shown in Fig.…”

“…37,38 When the concentration quenching effect occurs in Sr 1−x Bi x ZnSO phosphors, the electrical multipole interaction between the Bi 3+ ions plays a major role. 26,36 As shown in Figure 3c, emission spectra of Sr 1−x Bi x ZnSO samples show a broad blue emission band with a center wavelength of 467 nm and a broad red emission band with a center wavelength of 613 nm under excitation of 297 nm. Compared with the emission spectrum of the SrZnSO host lattice in Figure S3b, the broad blue emission band and red emission band are attributed to the 3 P 1,0 → 1 S 0 transition of the Bi 3+ ions and host emission, respectively.…”

“…It is known that Bi 3+ exhibits a broad and tunable emission band with the electronic configuration of [Xe] 4f 14 5d 10 6s 2 6p 3 [25]. Moreover, due to the naked 6s and 6p electrons, Bi 3+ is sensitive to the surrounding coordination environment [26,27]. 1 S0 is the ground state and 3 P0, 3 P1, 3 P2 and 1 P1 are the excited states of Bi 3+ .…”

“…It is known that Bi 3+ exhibits a broad and tunable emission band with the electronic configuration of [Xe] 4f 14 5d 10 6s 2 6p 3 . Moreover, due to the naked 6s and 6p electrons, Bi 3+ is sensitive to the surrounding coordination environment. , 1 S 0 is the ground state, and 3 P 0 , 3 P 1 , 3 P 2 , and 1 P 1 are the excited states of Bi 3+ . The electron transitions from 1 S 0 to 3 P 0 and 3 P 2 are spin forbidden, but the electron transitions from 1 S 0 to 3 P 1 and 1 P 1 are allowed.…”

New Structural Design Strategy: Optical Center VO4-Activated Broadband Yellow Phosphate Phosphors for High-Color-Rendering WLEDs

“…Recently, the KBCP compound with a β-K 2 SO 4 -type structure, featuring a large band gap and high thermal stability, has attracted considerable attention as a host matrix of advanced phosphors . To date, there are some reports about rare-earth (Eu 2+ /Tb 3+ /Ce 3+ )-, transition-metal (Mn 2+ )-, and main-group-element (Bi 3+ )-activated KBCP phosphors. − To the best of our knowledge, the study of VO 4 -activated KBCP phosphor has not been reported yet. We thus expect to construct optical center VO 4 in the KBCP compound by substituting P 5+ with V 5+ for developing new VO 4 -activated KBCP 2– x V x phosphors.…”