The luminescence of yitria stabilized zirconia doped with Bi2O3

Abstract

Yttria stabilized zlrconia doped with Bi203 shows an efficient luminescence due to the Bi 3+ ions. Two luminescent centres were observed which are ascribed to BIO 8 and BiO 7 groups. Int~ctionRecently Winnubst and Burggraaf [1] described a preparation method of monophaslc yttrla-stabillzed zlrconla doped with Bi203 (ZrO2-Y203-BI203). This material is a solid electrolyte which exhibits oxygen ion conduction at elevated temperatures and can be used in oxygen sensors for the regulation of In the course of our studies on the luminescence of the Bi 3+ ion in oxides [ref.2] we investigated also samples of yttrla-stabilized zlrconla doped with Bi203. Results are reported in this paper. We have found that the Bi 3+ ion luminesces efficiently in yttria stabilized zlrconia and that there are mainly two luminescent centres present. The latter observation is discussed in connection with the defect chemistry of stabilized zirconla.

Metastable γ-Bi2O3 tetrahedra: Phase-transition dominated by polyethylene glycol, photoluminescence and implications for internal structure by etch

“…Generally, the luminescence of Bi 3+ ions appears in the blue to green region under UV excitation, which is mainly assigned to 3 P 1 ? 1 S 0 transitions [39,40] or charge-transfer transitions between oxygen ligands and Bi 3+ ions [41]. The emission of Bi 2+ ion is attributed to 2 P 3/2 (1) ?…”

Structural and Enhanced Optical Properties of Stabilized γ‒Bi2O3 Nanoparticles: Effect of Oxygen Ion Vacancies

“…PL emission from different Bi 2 O 3 polymorphs is mainly attributed to Bi 3+ and Bi 2+ intrinsic transitions and complex defects such as V O . The luminescence from Bi 3+ appears from the blue region to the green region under UV excitation, attributed either to 3 P 1 → 1 S 0 transition or charge-transfer transitions between oxygen ligands and Bi 3+ ions [46,47]. The emission from Bi 2+ is attributed to 2 P 3/2 (1) → 2 P 1/2 transitions, giving rise to luminescence spectra that peak in the wavelength range 591-637 nm under UV excitation [48,49].…”

Growth, structure, luminescence and mechanical resonance of Bi2O3nano- and microwires

“…36 Actually, trivalent bismuth cations in inorganic compounds exhibit interesting luminescence properties related to their 6s 2 configuration. 37,38 Above 80 K, radiative transitions are mainly assigned to 3 P 1 → 1 S 0 transitions 13,35,37 or charge transfer transitions between oxygen ligands and Bi 3+ ions, 38 giving rise to luminescence spectra peaked in the blue to green region under UV excitation. On the other hand, Bi 2+ ions show PL emission in the range 2.10-1.95 eV under UV excitation.…”