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报道了硅基有机微腔的电致发光(EL).该微腔由上半透明金属膜、中心有源多层膜和多孔硅分布Bragg反射镜(PS DBR)组成.半透明金属膜由Ag(20nm)构成,充当发光器件的负电极和微腔的上反射镜.有源多层膜由Al (1 nm) / LiF(05 nm) /Alq3/Alq3:DCJTB/NPB/CuPc/ITO/SiO2组成,其中的Al/LiF为电子注入层,ITO为正电极,SiO2为使正、负电极电隔离的介质层.该PS DBR是采用设备简单、成本低廉且非常省时的电化学腐蚀法用单晶Si来制备的;该PS
关键词:
电化学腐蚀
电致发光
窄峰发射
硅基有机微腔 相似文献
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Li-Na Xiang Li-Juan Chen Lin Tan Chong Zhang Fu-Hu Cao Song-Tao Liu Yan-Mei Wang 《中国化学快报》2013,24(7):597-600
A novel polydopamine-graft-poly(2-methyl-2-oxazoline)(PDA-g-PMOXA) coating was prepared by immobilizing poly(2-methyl-2-oxazoline)(PMOXA) onto material surfaces through polydopamine (PDA) anchored coating for the first time.And then,the chemical composition,hydrophilicity,and protein-resistant properties of the PDA-g-PMOXA coating were studied using X-ray photoelectron spectroscopy(XPS),contact angel(CA) test,surface plasmon resonance(SPR),and quartz crystal microbalance with dissipation(QCM-D) measurement.Finally,the coating was applied to the capillary inner surface for protein separation by capillary electrophoresis(CE). 相似文献
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In recent years,in comparison to the light in the visible range(400~700 nm)and first near-infrared window(NIR-Ⅰ,700~1000 nm),the light in the second near-infrared window(NIR-Ⅱ,1000~ 1700 nm)possess the merits of the lowest optical scattering and absorption in the bio-tissue. So NIR-Ⅱ fluorescence imaging with deeper tissue penetration depths,high spatiotemporal resolution and signal to noise ratio(SNR)plays an important role in the fields of angiography,lymphangiography and so on. Herein, Nd3+ sensitized fluorescent nanoprobe (U/DNPs,NaGdF4 ∶Yb(18% mole fraction),Ho(2%),Ce(30%) @NaGdF4 ,Nd(60%)@NaGdF4 ,Nd(10%)) with core-shell-shell is synthesized through high-temperature coprecipitation and epitaxial growth method. Under the irradiation of 808 nm,the NIR-Ⅱ fluorescence at 1056 nm and 1332 nm are obtained via down-conversion process for further vascular imaging. Furthermore,it can emit red upconversion fluorescence with high red to green(R/G)ratio(I647 /I540 = 22. 6),possessing greatly potential application for photodynamic therapy. After successful modification of polyvinyl pyrrolidone(PVP) via ligand-exchange strategy,the U/DNPs-PVP nanomaterials possess excellent solubility in water and good biocompatibility,and can achieve the NIR-Ⅱ fluorescence vessels imaging with spatial resolution of 336. 3 µμm in vivo. © 2022, Science Press (China). All rights reserved. 相似文献
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杂散辐射是红外光学系统设计和检测过程中涉及的一项重要指标.为了定量测量红外成像系统内部杂散辐射, 提出一种基于辐射定标的测量方法, 并通过理论推导和实验验证以说明该方法的合理性.首先, 建立了不带光学系统的辐射定标模型, 即探测器直接接收定标源辐射能, 获得探测器内部因素对系统输出的影响; 然后将其与带有光学系统的定标结果进行比较, 得到由光学系统自身辐射对系统输出的影响, 进而计算红外成像系统内部杂散辐射; 最后通过实验证明了本文理论的正确性.该方法操作简单, 对实验条件要求低, 并可以精确地测量红外成像系统内部杂散辐射.可用于指导红外系统设计中的杂散辐射抑制, 验证系统杂散辐射分析结果是否准确以及检测系统杂散辐射指标是否合格. 相似文献
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A graph is symmetric if its automorphism group acts transitively on the set of arcs of the graph. In this paper, we classify hexavalent symmetric graphs of order for each prime . 相似文献
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A graph is edge-primitive if its automorphism group acts primitively on edges. Weiss (in J. Comb. Theory Ser. B 15, 269–288, 1973) determined edge-primitive cubic graphs. In this paper, we classify edge-primitive pentavalent graphs. The same classification of those of valency 4 is also done. 相似文献
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将附面层吸除技术应用于带间隙的高负荷压气机叶栅中,并在低速平面叶栅风洞里,实验研究了附面层吸除对带间隙的高负荷压气机叶栅流动特性的影响。实验采用五孔气动探针测量了叶栅出口截面参数,得到了该截面的二次流速度矢量分布,并对叶栅壁面进行了墨迹流动显示。结果表明,采用恰当的附面层吸除设置可以大幅改善流动,降低损失;在吸力面附近和间隙内采用附面层吸除(本文的方案1、2和4)都将削弱间隙泄漏流动的动能,从而影响吸力面再附线和端壁分离线的长度和位置,达到对相应区域三维流动分离的控制,并大幅降低总损失,其中方案1的损失下降达到20.8%。 相似文献
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