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二氧化硅壳层对CdS:Mn/ZnS量子点的光稳定性影响研究

The Research of Light Stability of Silica Shell CdS:Mn/ZnS Quantum Dots
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摘要 在量子点表面包覆二氧化硅壳层,能够有效的保护纳米粒子核不受外界环境的影响,使得它在光电子器件和生物标记等领域中有着广泛的应用前景。通过一锅法制备高质量Cd S:Mn/Zn S量子点,然后利用反相微乳液方法在量子点的表面继续包覆Si O_2层,得到Cd S:Mn/Zn S@Si O_2多层核壳结构量子点材料。化学性质稳定的Zn S及Si O_2材料的包覆使Cd S量子点材料的毒副作用降低并有效提高其稳定性,然而Cd S:Mn/Zn S量子点的大部分性能在包覆Si O_2后都保持不变,因此Cd S:Mn/Zn S@Si O_2量子点在光学应用中有很大的应用潜力。 In the quantum dot surface coated silica shell can effectively protect the nanoparticles nuclear from affectedby the external environment,which makes it have a broad application prospect in the field of optoelectronic devicesand biomarkers. Through one-pot process to prepared high quality CdS：Mn/ZnS quantum dots,then the method ofinverse microemulsion can be used to continue coated SiO2 layer in the surface of the quantum dots to get multi-lay-er core-shell structure CdS：Mn/Zn S@SiO2 quantum dot material. Chemical stability of Zn S and SiO2 reduces theside effects of Cd S quantum dots material and improves its stability,However,CdS：Mn/Zn S quantum dots still main-tain most of its performance after coatting,so CdS：Mn/Zn S@SiO2 quantum dots have great potential applications inoptical applications.
作者 肖菱子 管秋梅
机构地区 东南大学电子科学与工程学院
出处 《电子器件》 CAS 北大核心 2015年第6期1219-1223,共5页 Chinese Journal of Electron Devices
基金 江苏省科技支撑项目(工业部分)(BE201263)
关键词 胶体量子点 光稳定性 一锅法 二氧化硅壳层 colloidal quantum dots photostability one-pot silica shell
分类号 TN304 [电子电信—物理电子学]
  • 相关文献

参考文献14

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