Abstract
A facile pathway for solid-state material luminescence enhancement is proposed here by coating graphene on the surface of luminescent material. Ln3+ (Yb3+/Er3+)-doped germanium tellurite glasses are prepared by conventional melting and quenching method. With the excitation of 980 nm laser diode, the photo-luminescence intensities of the graphene-coated and uncoated glass samples are measured with different incidence angle of excitation light. When the incidence angle is less than 15°, luminescence enhancement can be observed in the coated samples compared with uncoated one. The insight for the enhancement is also discussed.
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This work was financially supported by National Natural Science Foundation of China (Grant No. 61177056 and No. 61975119).
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Wang, W., Tuo, T. & Jiang, C. Enhancing near-infrared luminescence of Ln3+ (Yb3+/Er3+)-doped germanium tellurite glasses by coating with graphene. Opt Quant Electron 52, 288 (2020). https://doi.org/10.1007/s11082-020-02413-6
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DOI: https://doi.org/10.1007/s11082-020-02413-6