新型电致发光材料1，5—萘二胺衍生物的合成和性质研究

合成了一种新型的有机电致发光材料：N,N‘－二苯基－N,N‘－二（1－萘基）－1,5－萘二胺（NPN）,测定了其吸收谱和荧光发射光谱。该材料具有很好的热稳定性,DSC测定其玻璃化温度（Tg）高达127℃,循环伏安法（CV）测定其电离热（Ip）为5.30eV,可望用作有机电致发光空穴传或蓝色发光材料。     

一种三苯胺多枝化合物的合成及光电性能研究

本文设计合成了一种含供电基团的三苯胺多枝化合物,并通过IR、MS、NMR进行了结构表征,用紫外-吸收光谱、荧光发射光谱、循环伏安法(CV)等手段研究了它的光电性能,分析了它的电化学行为,计算出其电离势(P1)为5.64eV,带隙(Eg)为2.79eV,结果表明,该化合物是优良的空穴高效注入和传输的蓝色有机电致发光材料.     

电致发光材料专利信息

电致发光材料及其制备方法和用途;酚基-吡啶硼配合物及其作为电致发光材料的应用;有机电致发光材料稀土铕有机金属配合物的制取方法;颜色可调的聚对苯乙炔类共聚物电致发光材料及其制备与应用;吩噻嗪类聚合物电致发光材料及其制备方法     

8-羟基喹啉类有机电致发光材料的合成研究进展

有机电致发光材料是近年来国内外的一个研究热点,因其良好的电光转化作用而在通讯显示行业有很大的应用前景。以8-羟基喹啉类有机电致发光材料为例详细介绍有机电致发光材料的研究进展,讨论了该类化合物的合成方法及应用范围。     

含1，3，5-均三嗪环的电致发光材料的研究进展

从有机小分子电致发光材料中的应用和聚合物电致发光材料中的应用两个方面综述了近十年来含1,3,5-均三嗪环的电致发光材料的研究进展情况,给出了最新的分子结构及性能参数,并对测试结果进行了理论分析。提出了这类电致发光材料的发展方向。     

有机电致发光材料研究新进展

简要介绍了有机电致发光器件的结构、工作原理。重点从有机电致发光材料器件结构的角度出发,对电致发光材料最新研究进展进行了综述。     

功能小分子电致发光材料的研究进展

有机电致发光(OLED)是近年来国际上的一个研究热点。有机电致发光器件具存低压驱动、高亮度、高效率以及能实现大面积彩色显示等优点。本文综述了有机电致发光材料的发展过程,重点介绍了目前应用于有机电致发光的各类功能小分子电致发光材料,文末展望了OLED的应用前景。     

有机电致发光的研究进展

有机材料具有高的荧光量子效率和半导体性质,通过掺杂或适当的分子设计可以调谐发光颜色。本文介绍和评述了近年来有机薄膜电致发光的原理,电致发光器件、电致发光材料的开发及其应用前景。     

基于芘并咪唑的电致发光材料的性质分析

芘并咪唑是一种高效有机磷光材料,新型芘并咪唑化合物近几年已成功用于有机电质发光二极管制作模块。以芘并咪唑为原料,分析了基于芘并咪唑的电致发光材料的合成原理及合成办法。并利用元素分析、X射线单晶衍射、波谱等方法,分析了基于芘并咪唑的电致发光材料的结构表征。并对基于芘并咪唑的电致发光材料的光物理性质进行了探究。     

含有芘基团的电致发光材料的研究进展

综述了近几年芘的衍生物在有机电致发光中的研究情况,展示了一些新结构并做了分析,总结了含芘基团电致发光材料的优点和缺点,并指出了芘的衍生物在有机电致发光材料中的应用前景。     

Hole transport triphenylamine-spirosilabifluorene alternating copolymer: synthesis and optical, electrochemical and electroluminescent properties

A new copolymer, constituted by the regular alternation of a spirosilabifluorene with a triphenylamine moiety, P(TPA-SSBF), has been synthesized via Suzuki coupling reaction. The molecular, thermal, optical, electrochemical and electroluminescent properties have been characterized. The introduction of a spiro-structure in P(TPA-SSBF) leads to its high thermal stability and good solubility in common organic solvents. The alternating copolymer shows only an absorption peak of 342 nm, demonstrating that triphenylamine is significantly conjugated with fluorene rings in the polymer. P(TPA-SSBF) in chloroform solution and in solid state film exhibits blue emission peak at 423, 435 nm respectively. The electrochemical behaviors of the polymer were investigated by cyclic voltammetry. The reversible electrochemical oxidation and low ionization potential (5.47 eV) suggest that P(TPA-SSBF) might have potential application as hole transport material in polymer LEDs. The hole transport ability of P(TPA-SSBF) was verified by comparing the performance of the two types LED devices fabricated in this study.     

高纯8-羟基喹啉铝的简便合成方法

研究了反应体系的酸度和反应时间对产物8-羟基喹啉铝(Alq3)纯度及产率的影响，用改进了的方法制备出了高纯度有机电致发光材料Alq3，通过NMR、MS和UV-Vis光谱对其结构进行了表征，并用液相色谱对其纯度进行了检测。     

咔唑及其衍生物在光电材料中的应用研究

综述了咔唑及其衍生物在有机非线性光学材料,有机电致发光材料,光折变材料及高分子纳米复合材料等光电材料中的制备和应用。     

聚合物电致发光材料与器件(待续)--聚合物发光材料

1990年Burroughes采用聚对苯乙炔(PPV)作为有源层制作聚合物电致发光器件,开创了共轭聚合物科学的新领域,由于聚合物电致发光器件具有制备简单、发光效率和发光亮度高、发光波长易于调节等显著特点,引起了各国的高度重视,大量的共轭聚合物材料成功地应用于电致发光器件,使得电致发光聚合物材料和器件的研究成为近年来最活跃的领域之一.     

聚合物电致发光材料与器件(续完)--聚合物发光材料

1990年Burroughes采用聚对苯乙炔(PPV)作为有源层制作聚合物电致发光器件,开创了共轭聚合物科学的新领域,由于聚合物电致发光器件具有制备简单、发光效率和发光亮度高、发光波长易于调节等显著特点,引起了各国的高度重视,大量的共轭聚合物材料成功地应用于电致发光器件,使得电致发光聚合物材料和器件的研究成为近年来最活跃的领域之一.     

无机电致发光材料的制备方法与研究现状

较系统地阐述无机电致发光材料的类型、发光原理及器件构成,以及无机薄膜电致发光材料的制备方法、研究的最新进展及今后的发展趋势。     

Observation of an electrical breakdown at ZnO Schottky contacts in varistors

We report an electrical breakdown (EBD) at metal/ZnO junctions in varistors with Ag-Pd and Pd electrodes. It was found that these junctions show Schottky behaviour with a mean Schottky barrier height (SBH) of 0.70 ± 0.07 eV for Bi-based varistors with Ag-Pd (80?20 %) electrodes and a mean SBH of 0.47 ± 0.03 eV for Pr-based varistors with Pd electrodes. All investigated electrode-to-grain junctions (EGJ) exhibited an EBD of the Schottky barrier in the reverse current direction, whereas the mean EBD voltage for the Bi-based varistors is 3.5 V and 2.5 V for the Pr-based varistors. Observation of electroluminescent light at the EGJ interface clearly indicates that the EBD is related to electron-hole generation, similar to the EBD at the grain boundaries in the ZnO microstructure. This shows that a similar good but asymmetric varistor effect, as it is observed at grain boundaries, can be observed at EGJ.     

2,4-二硝基溴苯的合成

以溴苯为原料,在水中与硝酸、硫酸混合酸反应合成了标题化合物,产率94.8%,纯度质量分数高于99.0%。所得产物的结构通过了红外、核磁波谱的表征。     

Preparation of plasma‐polymerized 3‐quinolinecarbonitrile and its photo(electro)‐luminescence properties

A novel plasma‐polymerized 3‐quinolinecarbonitrile (PP3QCN) thin film was prepared by plasma polymerization of 3‐quinolinecarbonitrile (3QCN) for the first time. The PP3QCN thin films show a blue emission with a narrow peak at ～ 475 nm and there appeared a relatively high intensity of PL peak. The EL devices with PP3QCN as electroluminescent layer sandwiched between ITO and Al were fabricated. It was found that the ITO/PP3QCN/Al devices also show a blue emission and PP3QCN thin film was stable and appropriate for the electroluminescent layer. The external quantum efficiency of ITO/PP3QCN/Al devices can reach to 0.0068%. The plasma‐polymerized conjugated polynitrile thin film obtained from 3QCN precursor might be a promising material for application in LED and photodiode device. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009