Perovskite tungstate Ba2La2ZnW2O12:Mn4+ phosphor: Synthesis, energy transfer and tunable emission
Source abstract
Abstract
Abstract Ba2La2ZnW2O12:xMn4+ (BLZWO:xMn4+) (0 ≤ x ≤ 1.2 mol%) are prepared via the solid state reaction method under air conditions. The crystal phases and optical properties of all samples are investigated. The yellow emission of BLZWO is observed with the chromaticity coordinates (0.3940, 0.4389), and its emission spectrum covers the region from 380 to 810 nm owing to the W6+ - O2− transition. When the excitation wavelength is 344 nm, BLZWO:xMn4+ show an adjustable photo-luminescence characteristic by altering the Mn4+ concentration owing to the energy transfer from [WO6] group to Mn4+ ions. With excitation at 514 nm, BLZWO:xMn4+ only show red emission. The excitation spectrum of BLZWO:Mn4+ with peaks at 344 and 514 nm is in the region from 210 to 600 nm and its emission spectrum with peak at 704 nm are observed in the range of 625–800 nm. The lifetimes of BLZWO:xMn4+ reduce successively with adding Mn4+ concentration. The results are good for the basic research on luminescence characteristics of Mn4+ ion.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Perovskite Materials and Applications · Microwave Dielectric Ceramics Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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