论文资料：Mn添加ZnSe量子点变温出现发亮基本特征论述跳转：//chineseoptics.net.cn/cn/article/doi/10.3788/CO.20150805.0806创作者：袁曦，郑金桔，李海波，赵家龙节选：论文摘要: 量子点(QD)灯光元器材封装中岗位电流会造成的焦耳热会使其岗位摄氏度不低于空调温差,对此科研量子点的闪光热固界定相当非常重要。选文凭借可靠光谱分析仪和时识别光谱分析仪科研了还有着各种壳层宽度的Mn参杂ZnSe(Mn: ZnSe)量子点的变温闪光特性,摄氏度面积是80～500 K。实验室最终结果证实,厚壳层(6.5单双层(MLs))Mn: ZnSe量子点的闪光热固界定要远高于薄壳层(2.6 MLs)的量子点。从80 K加温到400 K的的时候中,厚壳层Mn: ZnSe量子点的闪光几乎上不时有发生热猝灭,闪光量子有效率在400 K高温度下依旧能完成60%。经过评测Mn: ZnSe量子点的变温闪光难度与荧光耐用度,对Mn: ZnSe量子点闪光热猝灭体系完成了讨论稿。*后,只为科研Mn: ZnSe量子点的闪光热猝灭是否能够为本征猝灭,对还有着各种壳层宽度的Mn: ZnSe量子点完成了电加热-空气冷却再再循环(300-500-300 K)测量,表明厚壳层的Mn: ZnSe量子点的闪光在再再循环中几乎可逆转。对此,Mn: ZnSe量子点能符合于灯光元器材封装,即便是元器材封装中会出显必须解决的有较强热效用。

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.兰州pg电子娱乐游戏app 海洋生物可以提供各种相关新产品：油阴离子型CdSe/ZnS核壳荧光量子点（界面配体：十七胺、alkyl、油酸、氨基和羧基）PEG包囊水阴离子型CdSe/ZnS核壳荧光量子点 （表层配体：PEG 尾部基团：NH2和COOH）油阴离子型CdS/ZnS核壳荧光量子点（表层配体：十七胺、alkyl、油酸、氨基和羧基）PEG邮包水溶解性CdS/ZnS核壳荧光量子点（面上配体：PEG 端部基团：NH2和COOH）油可溶InP/ZnS核壳荧光量子点（表皮配体：十九胺、alkyl、油酸、氨基和羧基）PEG包着水无水磷酸氢InP/ZnS核壳荧光量子点（单单从表面配体：PEG 端部基团：NH2和COOH）油可溶性ZnSe/ZnS核壳荧光量子点（漆层配体： 18胺、alkyl、油酸、氨基和羧基）PEG快件水可溶ZnSe/ZnS核壳荧光量子点 （的表面配体：PEG 末段基团：NH2和COOH）不低于文章标题游戏内容来原各种学术期刊或学术论文，如果侵权商标请电话联系各位全部删除！