Abstract
We report on a kind of Ce3+/Tb3+/Sm3+ co-doped borosilicate glasses which can emit white light luminescence combined with red, green and blue fluorescence. In this manuscript, the energy transfer mechanism between Ce3+ and Tb3+ ions, Ce3+ and Sm3+ ions, and Tb3+ and Sm3+ ions is discussed by analysis of the steady and transient luminescence spectra of the doped ions. Based on the energy transfer mechanism, the near-ideal white light emission from the Ce3+/Tb3+/Sm3+ co-doped glasses with the color coordinate (x=0.335, y=0.337) has been observed under 350-nm excitation. Meanwhile, the calculated parameters such as color rendering index (78–81) and color temperature (4717–5372 K), characterizing luminous properties, show that the glasses can be potential candidates for displays and lighting.
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Acknowledgements
This work was supported by the National High-Technology Research and Development Program of China (2013AA031501) and National Natural Science Funds of China (Grant Nos. 51302092, 61378070). We would also like to thank the Hubei Optoelectronics Testing Center and Huazhong University of Science and Technology Analytical and Testing Center for sharing their equipment.
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Chen, Q., Dai, N., Liu, Z. et al. White light luminous properties and energy transfer mechanism of rare earth ions in Ce3+/Tb3+/Sm3+ co-doped glasses. Appl. Phys. A 115, 1159–1166 (2014). https://doi.org/10.1007/s00339-013-7995-6
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DOI: https://doi.org/10.1007/s00339-013-7995-6