Multicolor luminescence in oxygen-deficient Tb3+-doped calcium aluminogermanate glasses
2008 ◽
Vol 23
(7)
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pp. 1890-1894
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In this paper, we report on the multicolor luminescence in oxygen-deficient Tb3+-doped calcium aluminogermanate glasses. A simple method was proposed to control oxygen-deficient defects in glasses by adding metal Al instead of the corresponding oxide (Al2O3), resulting in efficient blue and red emissions from Tb3+-undoped glasses with 300 and 380 nm excitation wavelengths, respectively. Moreover, in Tb3+-doped oxygen-deficient glasses, bright three-color (sky-blue, green or yellow, and red) luminescence was observed with 300, 380, and 395 nm excitation wavelengths, respectively. These glasses are useful for the fabrication of white light-emitting diode (LED) lighting.
2012 ◽
Vol 430-432
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pp. 315-318
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2013 ◽
Vol 211
(3)
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pp. 651-655
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