[1]夏梦玲,刘超,赵修建,等.II-VI族量子点掺杂玻璃的光学性质及研究进展[J].中国材料进展,2017,(7-8):026-30.[doi:10.7502/j.issn.1674-3962.2017.07.07]
 XIA Mengling,LIU Chao*,ZHAO Xiujian,et al.Optical Properties and Research Progress of II-VI Quantum Dots Doped Glasses[J].MATERIALS CHINA,2017,(7-8):026-30.[doi:10.7502/j.issn.1674-3962.2017.07.07]
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II-VI族量子点掺杂玻璃的光学性质及研究进展()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2017年第7-8期
页码:
026-30
栏目:
前沿综述
出版日期:
2017-08-31

文章信息/Info

Title:
Optical Properties and Research Progress of II-VI Quantum Dots Doped Glasses
作者:
夏梦玲刘超赵修建韩建军
硅酸盐建筑材料国家重点实验室(武汉理工大学)
Author(s):
XIA Mengling LIU Chao* ZHAO Xiujian HAN Jianjun
(State Key Laboratory of Silicate Materials for Architectures (Wuhan University of Technology), Wuhan 430070, China) 
关键词:
II-VI族量子点掺杂玻璃荧光调控核壳结构量子点量子效率发光二极管(LED)
Keywords:
II-VI quantum dots (QDs) doped glasses photoluminescence modulation core-shell structural QDs quantum efficiency light emitting diode (LED)
DOI:
10.7502/j.issn.1674-3962.2017.07.07
文献标志码:
A
摘要:
由于量子限域效应,尺寸可调的II-VI族量子点掺杂玻璃在光学滤波片、非线性光学器件上的应用已经被广泛研究。玻璃中量子点的光学性质主要由量子点的尺寸、表面状态和周围基质环境决定,通过提高Se/Cd比可以有效地对量子点的表面缺陷进行钝化,实现CdSe量子点的本征发光;进一步调整热处理制度可以促进Zn离子扩散进入CdSe量子点表面,形成CdSe/Cd1-xZnxSe核壳结构,使得缺陷发光几乎完全猝灭,从而提高量子点的荧光量子效率;在玻璃中原位合成的CdS/ZnS核壳结构量子点的荧光量子效率可达到53%。随着基础研究中玻璃中II-VI族量子点荧光效率的不断提高,发光二极管(LED)等小型发光器件的制造成为可能。为了满足实际需要,建立核壳结构中量子点表面钝化机理模型,进一步优化量子点荧光效率是下一步需要解决的问题。
 
Abstract:
Due to the quantum confinement effect, the glasses doped with size tunable II-VI quantum dots (QDs) have been widely investigated in the applications of optical filters and nonlinear optical devices. The optical properties of QDs in glasses mainly depend on the size, the surface states and the environment of the surrounding matrix of the QDs. The surface defects of CdSe QDs can be effectively passivated by increasing the Se/Cd ratio, realizing the intrinsic photoluminescence of CdSe QDs in glasses. By adjusting the heat-treatment condition, Zn ions can be incorporated into the surface of CdSe QDs and form CdSe/Cd1-xZnxSe core-shell structure, which almost quenched the defects emission and further improve the quantum efficiency. In addition, the quantum efficiency of CdS/ZnS core-shell structural QDs by situ synthesis in glasses even can reach 53%. The fabrication of light emitting diode (LED) and other small light emitting devices is becoming possible with the continuous improvement of the fluorescence efficiency of II-VI QDs doped glasses in fundamental study. To meet the practical needs, establishing the model of the surface passivation mechanism in the core-shell system and further improve the fluorescence efficiency of the QDs in glasses is the next work to be done.
更新日期/Last Update: 2017-07-05