| ZnO量子点／SiO2复合器件的可调控电致发光研究 |
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| 引用本文： | 宣荣卫,张晓松,牛喜平,徐建萍,吴燕宇,罗程远,李萍,吴金花,李岚.ZnO量子点／SiO2复合器件的可调控电致发光研究[J].光电子．激光,2011(11):1613-1616. |
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| 作者姓名： | 宣荣卫 张晓松 牛喜平 徐建萍 吴燕宇 罗程远 李萍 吴金花 李岚 |
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| 作者单位： | 天津理工大学材料物理研究所;天津理工大学材料物理研究所;天津理工大学材料物理研究所;天津理工大学材料物理研究所;天津理工大学材料物理研究所;天津理工大学材料物理研究所;天津理工大学理学院;天津理工大学材料物理研究所;中国电子科技集团公司第五十四研究所;天津理工大学材料物理研究所 |
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| 基金项目： | 国家自然科学基金资助项目(60877029,60977035,60907021和10904109);天津市自然科学基金资助项目(09JCYBJC01400和11JCYBJC00300);科技创新体系及条件平台建设计划资助项目(10SYSYJC28100) |
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| 摘 要： | 在不同浓度的SiO2乙醇溶液中制备了一系列ZnO量子点／SiO2复合材料，通过匀胶方法将其制备成复合薄膜器件。器件的电致发光（EL）随着SiO2浓度的增加逐渐蓝移。通过实验，探索了发生蓝移的机制。选取一种ZnO量子点／SiO2复合材料均匀混入不同质量的纯SiO2后，测试结果表明，该蓝移现象不是SiO2自身发光引起的。通...
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| 关 键 词： | ZnO量子点/SiO2复合材料 电致发光(EL) 光谱调控 量子尺寸效应 |
Investigation on tunable EL from ZnO QDs/SiO2 hybrid devices |
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| XUAN Rong-wei,ZHANG Xiao-song,NIU Xi-ping,XU Jian-ping,WU Yan-yu,LUO Cheng-yuan,LI Ping,WU Jin-hua and LI Lan.Investigation on tunable EL from ZnO QDs/SiO2 hybrid devices[J].Journal of Optoelectronics·laser,2011(11):1613-1616. |
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| Authors: | XUAN Rong-wei ZHANG Xiao-song NIU Xi-ping XU Jian-ping WU Yan-yu LUO Cheng-yuan LI Ping WU Jin-hua and LI Lan |
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| Affiliation: | College of Science,Tianjin University of Technology,Tianjin 300384,China;Key Laboratory of Display Materials and Photoelectric Devices,Ministry of Education of China,Institute of Material Physics,Tianjin University of Technology,Tianjin 300384,China;Key Laboratory of Display Materials and Photoelectric Devices,Ministry of Education of China,Institute of Material Physics,Tianjin University of Technology,Tianjin 300384,China;Key Laboratory of Display Materials and Photoelectric Devices,Ministry of Education of China,Institute of Material Physics,Tianjin University of Technology,Tianjin 300384,China;Key Laboratory of Display Materials and Photoelectric Devices,Ministry of Education of China,Institute of Material Physics,Tianjin University of Technology,Tianjin 300384,China;Key Laboratory of Display Materials and Photoelectric Devices,Ministry of Education of China,Institute of Material Physics,Tianjin University of Technology,Tianjin 300384,China;Key Laboratory of Display Materials and Photoelectric Devices,Ministry of Education of China,Institute of Material Physics,Tianjin University of Technology,Tianjin 300384,China;College of Science,Tianjin University of Technology,Tianjin 300384,China;Key Laboratory of Display Materials and Photoelectric Devices,Ministry of Education of China,Institute of Material Physics,Tianjin University of Technology,Tianjin 300384,China;The 54th Research Institute,Electronics Technology Group Corporation of China,Shijiazhuang 050200,China);Key Laboratory of Display Materials and Photoelectric Devices,Ministry of Education of China,Institute of Material Physics,Tianjin University of Technology,Tianjin 300384,China |
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| Abstract: | The ZnO QDs/SiO2 composite materials,which were synthesized in different concentrations of SiO2-ethanol solution,were fabricated into light-emitting devices by spin coating.With the increase of SiO2 concentration,electroluminescence(EL) spectra of the devices are blue shift gradually.Experiments were designed and carried out to explore the mechanism of the spectrum-tunable EL with SiO2.The EL spectra of the series of devices,which were fabricated with the mixtures of the ZnO QDs/SiO2 sample and pure SiO2 in different molar ratios,indicate that the spectrum-tunable EL performance is not related to the emission of SiO2.The quantum size effect may be significant for the spectrum-tunable EL behavior,Gaussian multi-peak fitting for EL spectra showed that the increased ratio of green and orange-red emission with the increasing SiO2 concentration results in the blue shift of EL spectra. |
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| Keywords: | ZnO QDs/SiO2 composite material electroluminescence(EL) tunable spectrum quantum size effects |
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