Effective role of Co-dopants (Dy3+, Sm3+) on Tunable multicolour emission of Tb3+ doped telluroborate glasses for Natural White light applications
Source abstract
Abstract
In the current work the efficacy of incorporation of Dy 3+ and Sm 3+ ions into Tb 3+ doped new telluroborate glass as well as their interactions was investigated. In this study, Tb 3+ ions were employed as activators and sensitizers for both Dy 3+ and Sm 3+ ions emissions, which emanate from the excited states of Dy 3+ ( 4F 9/2) and Sm 3+ ( 4G 5/2) ions through a non-radiative energy transfer process. To validate the emission gamut of the prepared glasses, distinct emission colours were inspected with the CIE 1931 chromaticity analysis and the appropriate correlated colour temperature (CCT) values were estimated. The emission decay profile relating to the Tb 3+ ions ( 5D 4 state) of the glasses was investigated. The energy transfer efficiency, which stems from Tb 3+ ion to Dy 3+ and Sm 3+ ions were found to be 49 and 54% respectively. The IH model was successfully used to analyse the interaction mechanism.
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Research context
OpenAlex topics: Glass properties and applications · Luminescence Properties of Advanced Materials · Phase-change materials and chalcogenides
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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