| 辛胺和甲基苯烯酸甲酯对CH3NH3PbI3 纳米晶稳定性能的研究 |
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| 引用本文：黄婧,吴益华,李丹,董志强,朱志刚,施惟恒.辛胺和甲基苯烯酸甲酯对CH3NH3PbI3 纳米晶稳定性能的研究[J].上海第二工业大学(中文版),2018,(1):53-59 |
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| 基金项目:国家自然科学基金(61471233), 上海第二工业大学校重点学科(XXKZD1601), 上海第二工业大学研究生项目基金
(EGD16YJ024)资助 |
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| 中文摘要:有机- 无机杂化钙钛矿材料CH3NH3PbI3 是一种具有量子阱结构的新型材料, 在发光二极管、场效应晶体
管等诸多领域有着广泛的应用。在此类材料中, 封装分子的比例直接影响着钙钛矿纳米晶体的形态结构以及荧光特
性。首先选定辛胺为CH3NH3PbI3 纳米晶所需的封装分子, 并确定辛胺的最佳用量, 然后重点考察甲基苯烯酸甲酯
(MMA) 对CH3NH3PbI3 纳米晶稳定性能的影响, 并采用紫外- 可见吸收光谱法、光致发光光谱法、X 射线衍射仪、
扫描电子显微镜等手段对材料进行分析。研究表明, MMA 可以有效缓解CH3NH3PbI3 的分解, 添加量为400 L 时
制得的CH3NH3PbI3纳米晶稳定性最佳, 荧光持续时间由5 d 增加到9 d。 |
| 中文关键词:辛胺 甲基苯烯酸甲酯(MMA) 稳定性 |
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| The Stability Study of CH3NH3PbI3 Perovskite Nanocrystals Influenced byMethylmethacrylate and Octylamine |
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| Abstract:Organic-inorganic hybrid perovskite based CH3NH3PbI3 is a type of material that contains quantum wells, and can be
used to construct light-emitting diodes, field-effect transistors and many other devices with a wide range of applications. We firstly
consider octylamine as the capping moleculae for CH3NH3PbI3 nanocrystals, and find the best concentration. After that, the effects of
methylmethacrylate (MMA) on morphology and fluorescence performance of CH3NH3PbI3 perovskite crystals were investigated. The
UV-absorption spectra, Photoluminescence spectra, X-ray diffraction, scanning electron microscope were used to analyze the perovskite
crystals. It is found that MMA is able to effectively alleviate the decomposition of CH3NH3PbI3. Once the amount of MMA is 400 L,
the CH3NH3PbI3 nanocrystals have the best life time and fluorescent duration was increased from 5 d to 9 d. |
| keywords:octylamine methylmethacrylate (MMA) stability |
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