Tunable Multicolor Emission and Energy Transfer of Sb³⁺/Mn²⁺ Codoped Phosphate Glasses by Design

Abstract

In this work, the luminescent properties of Sb 3+ /Mn 2+ codoped 60P 2 O 5 -40MgO glass are presented. White light photoluminescence combining blue and orange-red light was observed under ultraviolet light excitation. The emission spectra showed that the blue emission intensity of Sb 3+ decreased significantly whereas the red emission intensity of Mn 2+ increased with the increasing concentration of Mn 2+ ions. Meanwhile, by maintaining the concentration of MnO (2.0 mol%) and increasing concentration of Sb 2 O 3 , both the blue emission and red emission were enhanced remarkably. The energy transfer from Sb 3+ to Mn 2+ ions via the dipole-quadrupole interaction was confirmed.

Photoluminescence and Energy Transfer in Sn2+, Tb3+ Co-Activated P2O5-Li2O-ZnO Glasses with Tailored Emission

“…5,6 For instance, enhanced emissions of Sm 3+ and Eu 3+ were observed in self-activated phosphors, exampling as Ca 2 NaMg 2 V 3 O 12 :Sm 3+ , 7 K 2 YZr(PO 4 ) 3 :Eu 3+ , 8 where V 5+ -O 2− and Zr 4+ -O 2− charge transfer (CT) transitions were involved. 13 More interestingly, Masai et al recently reported deep-UV-driven emission properties of SnO-ZnO-P 2 O 5 glasses, and the largest quantum efficiency (QE) among glass materials was observed, which is comparable to those of crystal phosphors such as MgWO 4 . Therefore, it is a challenge to exploit novel sensitizers with highly efficient absorption in UV region.…”

Synthesis and luminescence properties of a H2annealed Mn-doped Y3Al5O12:Ce3+single crystal for WLEDs

“…15 Transition metal Mn 2+ can provide a broad emission band in the visible (VIS) range corresponding to d-d transition, and its emission varies from green to red depending on the crystal field. 16 Since the absorption efficiency of d-d transition is low due to the spin-and parityforbidden electricdipole transition, sensitizing ions (Eu 2+ , Ce 3+ , etc.) are often utilized to enhance the emission of Mn 2+ .…”

Multi-wavelength-driven solar spectral conversion in P2O5–ZnO–Li2O glasses for improving greenhouse photosynthetic activity

“…Hence, RE-free "green" glasses with low-cost are highly favored in the development of novel materials for greenhouses. Interestingly, it is notable that amorphous glasses containing ns 2 -type emission centers (nZ 4), such as Bi 3 þ , Tl þ , Sb 3 þ , and Sn 2 þ , recently received a great deal of attention because of the intense photoluminescence (PL) properties due to for their parity-allowed transitions [13][14][15]. Compared with the site distribution of crystals, amorphous glasses are suitable for ns 2 -type emission centers [14].…”

“…Interestingly, it is notable that amorphous glasses containing ns 2 -type emission centers (nZ 4), such as Bi 3 þ , Tl þ , Sb 3 þ , and Sn 2 þ , recently received a great deal of attention because of the intense photoluminescence (PL) properties due to for their parity-allowed transitions [13][14][15]. Compared with the site distribution of crystals, amorphous glasses are suitable for ns 2 -type emission centers [14]. More interestingly, the highest luminescence quantum yield (QY) among amorphous materials was recently obtained in the SnO-P 2 O 5 -ZnO glass system, which is comparable to a phosphor crystal, such as MgWO 4 [13].…”

“…The ns 2 -type Sn 2 þ emission centers shows a5s 2 electron configuration, and they possess electrons in the outermost shell between the ground ns 2 state and the ns 1 np 1 excited state. As a result, their emission bands could be tuned by adjusting the coordination field of Sn 2 þ [13,14]. Recently, Liu et al investigated the photoluminescence properties of SnO 2 /MnO co-doped 75P 2 O 5 -25SrO glasses, and interesting results were obtained [16].…”