电致发光的

The luminescence mechanism of the device is solid state cathodoluminescence because electrons are accelerated in solid instead of in vacuum.

这个结果将SSCL从有机材料扩展到无机材料，为实现蓝色无机电致发光提供了新的途径。

In this thesis, on the basis of experimental and theoretical research, we study the factors that lead to low electroluminescence efficiency of PS and the stability of PL in PS.

在本论文中，我们通过理论和实验研究，对造成多孔硅电致发光效率低的原因以及多孔硅的发光稳定性问题进行了一些探索。

Luminescent organometallic compounds have been becoming the most active research focus in recent years because of their applications in electroluminescent display.

发光金属有机配合物因其在电致发光材料中的潜在应用已成为当前国际上一个十分活跃的研究热点。

The most parts of thesis as follows:1. Five symmetrical intra-molecular charge transfer oligomeric phenylene vinylene light emitting materials were designed and synthesized using oligomeric phenylene vinylene as a framework.2. The structures of target molecule were characterized by ~1HNMR,~(13)CNMR, IR, MS and element analysis.3. In order to study the influence of the location and numbers of electron-donor and electron-acceptor on their photoelectric performance by changing length of OPV chain, the UV spectra and fluorescence spectra of target compounds has been compared. We have researched into main factors effecting on material emitting red-shift; organic electroluminescence device was prepared using the compound P4. The capability of eletroluminescence was researched.4. The photoelectric properties of P4 was explained by quantum chemical calculation (the Gaussian 98 quantum chemistry program). It is greatly contributed know the whole process of charge transfer to guide the design of red emitters.

本文研究的内容主要包括以下部分：(1)设计并合成5个对称的以齐聚苯乙烯类为骨架的分子内电荷转移型齐聚苯乙烯类发光材料；(2)通过IR，MS，~1H-NMR，~(13)C-NMR和元素分析对所合成的目标化合物进行表征；(3)通过对目标化合物的紫外光谱和荧光光谱比较分析，研究改变OPV的长度，电子给体和电子受体的位置及数量对其光电性能的影响，探讨材料发射红移的主要因素；选取性能良好的目标化合物P4制备成OELD器件，对其电致发光性能进行研究；(4)运用Gaussian98量子化学程序包，采用量子化学方法对目标化合物P4的光电性能从理论加以解释，进一步认识荷移跃迁的整个过程，为红光材料的设计加以指导。

Energy transfers from both carbazole and oxadiazole moieties to terbium complex were compared by means of photoluminescence.

单层聚合物电致发光器件ITO／PKMOTb／Al的启动电压低至6.2V。

The geometry structures have been optimized by semiempirical method AMI, on the base of this, the electronic properties and energy band structure of typical polymers were performed by EHMACC. The influence of photo-electricity on PPV-like electroluminescent polymers substituted by alkyloxy and cyano were discussed.

采用半经验AM1方法优化体系的几何结构，在此基础上，对典型的聚合物采用EHMACC程序计算能带结构，讨论烷氧基和氰基取代对PPV类电致发光聚合物光、电性质的影响。

In this paper, twenty novel meso-substituted porphyrins of four series were designed and synthesized by increasing the conjugation of porphyrins or introducing substituents with high fluorescence quantum yield into the meso-position of porphine, and then red OLEDs were fabricated by doping porphyrins into a suitable host using ten porphyrins compounds and their electrolumin -escence properties were tested. The main contents and results were generalized as follows:Three meso-tetrakisporphyrins 4a-c and three conjugations of porphine-triarylamine linked by styrene 10a-c were synthesized and characterized by 1H NMR, MS, UV-vis spectra and fluorescence emission spectra.

本文通过增大卟啉分子的共轭结构或将具有高荧光量子产率的基团连接到卟吩环的中位得到了四类共20个新型的卟啉化合物，并选取其中10个化合物制备有机发光器件来考察材料的电致发光性能，具体内容包括以下几个部分：设计合成了3个中位直接被三芳胺取代的卟啉化合物4a-c和3个通过苯乙烯连接的卟吩-三芳胺共轭体10a-c，通过核磁氢谱、质谱、紫外吸收光谱和荧光发射光谱表征了新化合物的结构。

Both the PL and EL of PPV are bluish-green emitting, the molecular weight, luminescenceefficiency and brightness of which are obviously higher than the homo-polymers and thecopolymers consisted of 9, 10-anthracene vinylene reported.

初步研究结果表明，聚2，6-蒽基乙烯膜状态下的荧光发射光谱和电致发光光谱均呈蓝绿光发射，其分子量、发光效率和亮度显著高于已有报道的聚9，10-蒽基乙烯，也明显高于文献报道的9，10-蒽基乙烯与其它单体的共聚物。

As if a glowing runway, the electroluminescent flooring could keep you from stubbing your toe during a groggy trek to the bathroom, guide you to the bedroom after a late-night out and even replace a child's conventional nightlight.

这种电致发光地毯就像一个发光通道，可以让你在迷迷糊糊进入浴室时避免碰伤脚趾，半夜时指引你进入卧室，甚至还可以充当孩子卧室的夜间照明灯。

Conjugated polymers which are different from traditional semiconductor, have some unique properties. Most of them are quasi-one-dimensional systems with strong electron-phonon interaction. Their carriers are composite particles, which are different from simply electron and hole, characterized with the surrounding distortion of lattice configuration (polaron with spin 1/ 2 , bipolaron with spin 0 etc.). The transport of the carriers and the process that oppositely charged polarons combine to from exciton are believed to be of fundamental importance for electroluminescence properties.

共轭聚合物具有不同于传统半导体的特性，它们是强电-声相互作用的准一维体系，其载流子不再是简单的电子和空穴，而是伴随晶格畸变的具有内部结构的复合粒子(自旋1/2的极化子、自旋为0的双极化子等)，这些载流子的输运、以及正负极化子对复合成激子的过程在很大程度上决定着聚合物的电致发光性质。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐