资料：Mn夹杂ZnSe量子点变温发光字广告规定性探析外部链接：//chineseoptics.net.cn/cn/article/doi/10.3788/CO.20150805.0806做者：袁曦，郑金桔，李海波，赵家龙节选：小结: 量子点(QD)照明工作设备元元电子元件封装封装中功率会导致的焦耳热会使其工做平均温度因素大于空调温度因素,但是深入分析量子点的夜光字热比较稳明确非常重点。这篇应用动态平衡光谱分析图和时期甄别光谱分析图深入分析了兼有区别壳层板材的板材厚度的Mn夹杂ZnSe(Mn: ZnSe)量子点的变温夜光字本质,平均温度因素条件是80～500 K。科学实验可是呈现,厚壳层(6.5双层(MLs))Mn: ZnSe量子点的夜光字热比较稳明确要相较于薄壳层(2.6 MLs)的量子点。从80 K回温到400 K的工作中,厚壳层Mn: ZnSe量子点的夜光字可能说不突发热猝灭,夜光字量子使用率在400 K高温高压下但依然可能到达60%。在对照Mn: ZnSe量子点的变温夜光字抗弯强度与荧光寿命短,对Mn: ZnSe量子点夜光字热猝灭长效机制使用了讨论会。*后,只为深入分析Mn: ZnSe量子点的夜光字热猝灭会不为本征猝灭,对兼有区别壳层板材的板材厚度的Mn: ZnSe量子点使用了供暖-冷去嵌套巡环(300-500-300 K)自测,显示厚壳层的Mn: ZnSe量子点的夜光字在嵌套巡环中大体可逆反应。但是,Mn: ZnSe量子点可能选主要用于照明工作设备元元电子元件封装封装,哪怕元元电子元件封装封装中会显现不得防止出现的较少热反应。

Abstract: Thermal stability of quantum dot(QD) luminescence is considered as an important factor for their applications in luminescent devices because of the Joule heat caused by inevitable current. The temperature-dependent photoluminescence(PL) properties of Mn-doped ZnSe(Mn: ZnSe) QDs with different shell thickness in the temperature range from 80 to 500 K were studied by steady-state and time-resolved PL spectra. It was found that the Mn: ZnSe QDs with thick shell(6.5 monolayers(MLs)) exhibited better PL thermal stability than the thin shell coated ones(2.6 MLs). Because almost no PL quenching occurred for thick shell-coated Mn-doped QDs from 80 to 400 K, their PL quantum yield(QY) could keep 60% even at 400 K. Moreover, based on the change in temperature-dependent PL intensities and lifetimes of Mn: ZnSe QDs, the thermal quenching mechanism was proposed. Finally, the stability of Mn: ZnSe QDs with different shell thickness are discussed on the basis of heating-cooling cycling examination(300-500-300 K). For Mn: ZnSe QDs with thick shell, the PL was nearly totally recovered after the cycling examination. Thus, Mn: ZnSe QDs are promising for applications in luminescent devices, where strong thermal effect is inevitable.渭南杏彩体育平台 生物学给予相应的厂品：油可溶CdSe/ZnS核壳荧光量子点（单单从表面配体：十七胺、alkyl、油酸、氨基和羧基）PEG快递包裹水可溶CdSe/ZnS核壳荧光量子点 （表面上配体：PEG 末梢基团：NH2和COOH）油溶解性CdS/ZnS核壳荧光量子点（表面能配体：18胺、alkyl、油酸、氨基和羧基）PEG快递包裹水无水磷酸氢CdS/ZnS核壳荧光量子点（面配体：PEG 尾部基团：NH2和COOH）油可溶InP/ZnS核壳荧光量子点（面配体：十九胺、alkyl、油酸、氨基和羧基）PEG 包装水溶解性InP/ZnS核壳荧光量子点（从表面配体：PEG 端部基团：NH2和COOH）油阴离子型ZnSe/ZnS核壳荧光量子点（的表面配体：二十胺、alkyl、油酸、氨基和羧基）PEG包着水可溶ZnSe/ZnS核壳荧光量子点 （外表面配体：PEG 端部基团：NH2和COOH）及以上经典文章项目起源各项学术期刊或文献资料，要是有侵犯著作权请连接.我清空！