August 15, 2025

High-Quality Single-Source White-Light Emission in Double Perovskite Cs

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High-quality white emission is achieved in Cs2NaGdCl6 through codoping with Sb3+, Tb3+, and Mn2+.
The photoluminescence quantum yield improves from 0.66% to 68.38% after doping, indicating significant optical performance enhancement.
Density functional theory calculations reveal Sb3+ creates new sensitizing states for better emission performance.
Results demonstrate the material's potential for applications in white-light illumination and optical thermometry.

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Codoping with Sb3+, Tb3+, and Mn2+ enhances white emission in double perovskite, suggesting potential optical applications.

Chen et al. (2025) studied this question.

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