Abstract

The luminescent properties of the Tm3+/Tb3+/Sm3+ ions in phosphate glasses and glass ceramics have been investigated for the generation of white light. The X-ray diffraction pattern of the glass ceramics reveals the presence of SrZnP2O7 nano-crystals in the glass matrix after a suitable thermal treatment of the parent glasses. Bright white light emission of the glass and glass ceramic samples has been observed when the samples are excited with 357 nm light. Significantly increased luminescent intensity is observed from glasses to glass ceramics.

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