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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:
专著:Mn掺入ZnSe量子点变温发亮化学性质研究探讨微信链接://chineseoptics.net.cn/cn/article/doi/10.3788/CO.20150805.0806小说作者:袁曦,郑金桔,李海波,赵家龙节选:英文论文: 量子点(QD)照明灯具灯具电子元功率器材中功率造成的焦耳热会使其上班水温如果超过空调工作温度,为此调查量子点的会亮字广告字热安稳性着实注重。这篇文根据恒定光谱分析图和精力签别光谱分析图调查了享有区别壳层壁厚的Mn添加ZnSe(Mn: ZnSe)量子点的变温会亮字广告字化学性质,水温范围图是80~500 K。调查没想到显示,厚壳层(6.5双层结构(MLs))Mn: ZnSe量子点的会亮字广告字热安稳性要更为重要薄壳层(2.6 MLs)的量子点。从80 K高温到400 K的时中,厚壳层Mn: ZnSe量子点的会亮字广告字能够 说没了出来热猝灭,会亮字广告字量子吸收率在400 K高热下还是能够 完成60%。顺利通过相对较Mn: ZnSe量子点的变温会亮字广告字挠度与荧光期,对Mn: ZnSe量子点会亮字广告字热猝灭机能做出了座谈。*后,方便调查Mn: ZnSe量子点的会亮字广告字热猝灭有没有为本征猝灭,对享有区别壳层壁厚的Mn: ZnSe量子点做出了高温-冷却水嵌套重复(300-500-300 K)检查,会发现厚壳层的Mn: ZnSe量子点的会亮字广告字在嵌套重复中基本的不逆转。为此,Mn: ZnSe量子点能够 适于于照明灯具灯具电子元功率器材,虽然电子元功率器材中会出来不防止的具有热相应。

 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.昆明杏彩体育平台 生物学提高重要性成品:油溶解性CdSe/ZnS核壳荧光量子点(接触面配体:18胺、alkyl、油酸、氨基和羧基)PEG背包水溶解性CdSe/ZnS核壳荧光量子点 (单单从表面配体:PEG 后部基团:NH2和COOH)油可溶性CdS/ZnS核壳荧光量子点(接触面配体:十七胺、alkyl、油酸、氨基和羧基)PEG快件水可溶CdS/ZnS核壳荧光量子点(表皮配体:PEG 未端基团:NH2和COOH)油溶解性InP/ZnS核壳荧光量子点(接触面配体:十七胺、alkyl、油酸、氨基和羧基)PEG邮包水可溶性InP/ZnS核壳荧光量子点(表皮配体:PEG 下端基团:NH2和COOH)油阴离子型ZnSe/ZnS核壳荧光量子点(外面配体:十九胺、alkyl、油酸、氨基和羧基)PEG背包水溶解性ZnSe/ZnS核壳荧光量子点 (界面配体:PEG 后部基团:NH2和COOH)上文章标题网站内容种类特殊期刊论文或学术论文,深表歉意侵犯商标权请搞好关系他们删除图片!