文章：Mn添加ZnSe量子点变温荧光化学性质探讨联结：//chineseoptics.net.cn/cn/article/doi/10.3788/CO.20150805.0806作著：袁曦，郑金桔，李海波，赵家龙节选：提要: 量子点(QD)灯光元器中直流电压造成的焦耳热会使其工作的气温少于空调温,如此探索量子点的发亮字广告热不稳性二十五分更重要。文章应用稳固光谱图分析和时长辩别光谱图分析探索了具备有不一样的壳层板厚为的Mn参杂ZnSe(Mn: ZnSe)量子点的变温发亮字广告质地,气温范畴是80～500 K。检测毕竟呈现,厚壳层(6.5编织成单层(MLs))Mn: ZnSe量子点的发亮字广告热不稳性要兼具薄壳层(2.6 MLs)的量子点。从80 K回温到400 K的方式中,厚壳层Mn: ZnSe量子点的发亮字广告需要说如果没有产生热猝灭,发亮字广告量子错误率在400 K常温下还是需要完成60%。利用对照Mn: ZnSe量子点的变温发亮字广告承载力与荧光质保期,对Mn: ZnSe量子点发亮字广告热猝灭机能实行了专题讨论。*后,因为探索Mn: ZnSe量子点的发亮字广告热猝灭可否为本征猝灭,对具备有不一样的壳层板厚为的Mn: ZnSe量子点实行了蒸汽加热-降温嵌套循环往复(300-500-300 K)测式,看见厚壳层的Mn: ZnSe量子点的发亮字广告在嵌套循环往复中主要可逆反应。如此,Mn: ZnSe量子点需要采用以灯光元器,也许元器中会诞生不容规避的较为强烈热因素。

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.杭州pg电子娱乐游戏app 生物技术提拱相应物料：油无水磷酸氢CdSe/ZnS核壳荧光量子点（外表面配体： 18胺、alkyl、油酸、氨基和羧基）PEG包围水溶解性CdSe/ZnS核壳荧光量子点 （的表面配体：PEG 尾端基团：NH2和COOH）油无水磷酸氢CdS/ZnS核壳荧光量子点（从表面配体：十七胺、alkyl、油酸、氨基和羧基）PEG包围水溶解性CdS/ZnS核壳荧光量子点（表明配体：PEG 末梢基团：NH2和COOH）油可溶性InP/ZnS核壳荧光量子点（面上配体： 18胺、alkyl、油酸、氨基和羧基）PEG快递水阴离子型InP/ZnS核壳荧光量子点（外表配体：PEG 末梢基团：NH2和COOH）油阴离子型ZnSe/ZnS核壳荧光量子点（单单从表面配体： 18胺、alkyl、油酸、氨基和羧基）PEG快件水溶解性ZnSe/ZnS核壳荧光量子点 （接触面配体：PEG 后部基团：NH2和COOH）上面好的文章內容因素各大期刊论文或资料，如果有侵犯知识产权请关联自己刪除！