Achieving green–red-tunable emission through Tb3+–Eu3+ energy transfer in Sr3Y2(Si3O9)2: Tb3+, Eu3+ phosphors
Source abstract
Abstract
A series of color-tunable green–red-emitting Sr3Y2(Si3O9)2: Tb3+, Eu3+ (SYSO: Tb3+, Eu3+) were synthesized by solid-state method. The crystal structure and dopant-occupied sites of SYSO: Tb3+, Eu3+ were investigated by XRD–Rietveld refinement. Furthermore, the corresponding luminescent properties were studied in detail. The energy transfer (ET) process from Tb3+ to Eu3+ was found to be resonant type via exchange interaction with ET efficiency of ~ 85%. By varying the Tb3+/Eu3+ ratio, the emitting color can be tuned from green, yellow, orange and eventually to red. The temperature-dependent PL spectra revealed that SYSO: Tb3+, Eu3+ phosphor has good thermal stability. All these properties indicate that the developed phosphor may potentially be used as single-component multicolor-emitting phosphors.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Perovskite Materials and Applications · Advanced Photocatalysis Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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