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Mn: ZnSe量子点高温下的发光效率及应用潜力
发布时间:2025-07-25     作者:kx   分享到:
期刊论文:Mn添加ZnSe量子点变温变色本质特征科学研究外链://chineseoptics.net.cn/cn/article/doi/10.3788/CO.20150805.0806小说作品:袁曦,郑金桔,李海波,赵家龙节选:英文论文: 量子点(QD)灯具器材中直流电造成 的焦耳热会使其作业温度表因素要高于环境温度表,对此理论深入分析量子点的发亮热平衡性着实首要。本段利于恒定光谱分析仪和事件鉴别光谱分析仪理论深入分析了兼含有差异 壳层板厚为的Mn夹杂着ZnSe(Mn: ZnSe)量子点的变温发亮属性,温度表因素的范围是80~500 K。科学试验数据意味着,厚壳层(6.5三层(MLs))Mn: ZnSe量子点的发亮热平衡性要远远超过薄壳层(2.6 MLs)的量子点。从80 K回升到400 K的整个过程中,厚壳层Mn: ZnSe量子点的发亮近乎如果没有的发生热猝灭,发亮量子吸收率在400 K耐高温下纵然就能到60%。按照比较Mn: ZnSe量子点的变温发亮承载力与荧光寿命短,对Mn: ZnSe量子点发亮热猝灭系统对其实行了讨论会。*后,因为理论深入分析Mn: ZnSe量子点的发亮热猝灭有没有为本征猝灭,对兼含有差异 壳层板厚为的Mn: ZnSe量子点对其实行了微波加热-放置冷却再反复(300-500-300 K)测验,挖掘厚壳层的Mn: ZnSe量子点的发亮在再反复中关键不得逆转。对此,Mn: ZnSe量子点就能代替于灯具器材,纵然器材中会会出现不得减少的弱于热作用。

 ZnSe量子点

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.广州pg电子娱乐游戏app 海洋生物展示 各种相关物品:油可溶性CdSe/ZnS核壳荧光量子点(界面配体:二十胺、alkyl、油酸、氨基和羧基)PEG快件水阴离子型CdSe/ZnS核壳荧光量子点 (单单从表面配体:PEG 尾端基团:NH2和COOH)油无水磷酸氢CdS/ZnS核壳荧光量子点(面上配体: 18胺、alkyl、油酸、氨基和羧基)PEG快件水可溶CdS/ZnS核壳荧光量子点(外层配体:PEG 终端基团:NH2和COOH)油可溶性InP/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包含水可溶InP/ZnS核壳荧光量子点(表皮配体:PEG 末段基团:NH2和COOH)油无水磷酸氢ZnSe/ZnS核壳荧光量子点(外壁配体:十九胺、alkyl、油酸、氨基和羧基)PEG包囊水溶解性ZnSe/ZnS核壳荧光量子点 (外壁配体:PEG 尾部基团:NH2和COOH)以上资源好的文章资源源于几大类杂志或文献资料,假如有侵权行为请结合.我册除!