Luminescence properties of CdTe QDs embedded in Zn₅(CO₃)₂(OH)₆ matrix

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• 作者：Guo-Fang Wang ; An-Xiang Guan ; Chun-Yan Zhou ; Si-Yu Xia ; Qian Chen ; Xue-Ting Chen ; Li-Ya Zhou ; ^{zhouliyatf@163.com}
• 关键词：Quantum dots ; Fluorescent powder ; Basic zinc carbonate ; Hydrothermal ; Light-emitting diodes
• 刊名：Chinese Chemical Letters
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：27
• 期：12
• 页码：1788-1792
• 全文大小：1309 K
• 卷排序：27

文摘

CdTe@Zn5(CO3)2(OH)6 composites were synthesized by a hydrothermal method. CdTe@Zn5(CO3)2(OH)6 composite nanospheres were characterized via X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and photoluminescence (PL). The hydrothermal reaction time and the mole ratios of Zn/Te played important roles in the growth and fluorescence intensity of CdTe@Zn5(CO3)2(OH)6 composites. The composite powders showed peak PL at 578 nm at 1.6 times the intensity of powdered CdTe QDs. CdTe@Zn5(CO3)2(OH)6 exhibited a strong yellow fluorescence emission, and its preparation method was easy and economical. Therefore, CdTe@Zn5(CO3)2(OH)6 offers potential applications in biological markers and light-emitting diodes.