查询词典 electroluminescence

In summary, this research was laid a better foundation to further study of the effects of the second ligands on the electroluminescence properties of europium complexes, and achieved OELD with excellent EL properties.

本研究为下一步开展第二配体的结构对铕配合物的电致发光性能的影响，获得性能优良的铕配合物电致发光器件打下了良好的基础。

When the diode is forward biased, electrons are able to recombine with holes and energy is released in the form of light. This effect is called electroluminescence and the color of the light is determined by the energy gap of the semiconductor.

随着成长，他也会拥有一个可以盛放自己秘密和隐私的地方，也许是抽屉（但在当今社会更可能是电脑）或许还是房间……但抽屉的概念依然存在；广义的讲，每个人都可以比作是一个"抽屉"。

The experimental method was described for measuring the chromaticity of the light source of electroluminescence lines by means of a grating monochromator .

基于色度学的基本理论和色度的测量方法，提出了用平面光栅单色仪测量场致发光线光源色度的方法，研究了场致发光线的结构和发光原理

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。

Electroluminescence of light emitting diodes with In-doped GaN barrier had better relative intensity and wavelength uniformity.

利用这两种结构制备了相应的发光二极管样品。

Organic electroluminescent has made great progress with thedevelopment of organic thin film science and technology.

有机电致发光(electroluminescence，EL)是在有机薄膜科学和技术迅猛发展的推动下而发展起来的。

These polymers reveal an enantiotropic nematic liquid crystal phase which can be applied for application in polarized electroluminescence.

此系列的液晶材料皆具有双变型之向列型液晶相，因此可应用於偏极化电激发光元件上。

The recent progress in electroluminescence device including spiro compounds of fluorene and anthracene is discussed in this paper. The synthetic methods of double-spiro and single-spiro organic compounds together with EL devices are described in detail.

对近年来含芴、蒽螺环结构发光材料的研究进展进行了总结，重点介绍了含有双螺、单螺结构的有机电致发光材料的结构和特性，给出了部分有机化合物的合成方法。

Since the electroluminescence materials based on our national patents are very scarce, our main work is focused on the development of new materials. Several materials was synthesized, such as electron transport and host emitting materials: organometallics, oxadiazole and quinoline derivatives; hole-transport materials: aromatic amines H40, H41; and star-shaped molecule materials TPM, TIM etc.

在有机发光材料方面，由于现有的性能较好的发光材料，其专利大都掌握在国外大公司手中，国内具有自主知识产权的高性能材料很少，本文的工作主要集中在新材料的开发方面，在前人的基础上有所创新。

The photophysical properties, thermal properties, electrochemical properties of all compounds and electroluminescence properties of some compounds were investigated detailedly.

我们详细研究了各种化合物的光物理、热物理和电化学性质以及部分化合物的电致发光器件性能。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。