Enhanced quantum efficiency and controllable emissions of Eu through incorporation of Mn2+ in β-NaYF4 nanocrystals
Source abstract
Abstract
Abstract Monodispersed Eu, Mn co-doped β-NaYF4 nano-crystals with various morphologies, including nanoplates, hexagonal nanoprisms and microrod, have been prepared via a facile hydrothermal route. The trisodium citrate (Cit3−) and pH values, rather than Mn2+, play an important role in fine-tuning the morphologies. A broad band emission from the 5d-4f transition of Eu2+ as well as line emissions from the 4f-4f transitions of Eu3+ are observed in Eu, Mn co-doped β-NaYF4. The quantum efficiency of Eu3+ was improved from 16% to 72% by inhibiting the luminescence of Eu2+. In addition, controllable emissions from Eu3+/Eu2+ can be achieved through the incorporation of Mn2+ in β-NaYF4. The correlation between the tunable emission and enhanced quantum efficiency with Eu3+/Eu2+ and Mn2+ in β-NaYF4 has been established and discussed in detail.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Solid State Laser Technologies · Perovskite Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (43)
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