Full color and tunable white emitting in ternary Ce/Tb/Sm Co-doped CaO-B₂O₃-SiO₂ glasses

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• 作者：Zhenfeng Zhu ; ^{zhuzf@sust.edu.cn} ; ^{nmlab@sust.edu.cn} ; Yanbin Zhang ; Yinpo Qiao ; Dianguang Liu ; Bingqing Wang ; Zhichun Zhang
• 关键词：Luminescence ; Optical properties ; Tunable luminescent color ; White LEDs
• 刊名：Journal of Non-Crystalline Solids
• 出版年：2012
• 出版时间：1 July, 2012
• 年：2012
• 卷：358
• 期：12-13
• 页码：1550-1553
• 全文大小：576 K

文摘

A series of luminescent glasses composed of CaO-B₂O₃-SiO₂ co-doped with cerium oxide (CeO₂), terbium oxide (Tb₄O₇) and samarium oxide (Sm₂O₃) were prepared by high temperature melting method, aiming to realize the white emitting and tunable luminescent color in the glass matrix. The full colors including blue, green and reddish orange emitting were observed simultaneously in the photoluminescent spectra of ternary Ce/Tb/Sm co-doped CaO-B₂O₃-SiO₂ glasses excited by ultraviolet light. It is shown that the combination of these three emitting allows the realization of white light emitting in ternary co-doped CaO-B₂O₃-SiO₂ glasses. Furthermore, the tunable luminescent color and chromaticity parameters could be realized by varying the content of dopant in the glass matrix, which makes these co-doped glasses good candidates for white light emitting diodes (LEDs).