光致发光

We analyze the spectrum of absorption. The emphasis of the article is to study the spectrum of photoluminescence and electroluminescence.

在光致发光测定中，我们得到了位于360nm和675nm的发光峰，并讨论他们的激发谱和发光中心。

Strontium aluminate phosphors are a kind of photoluminescent materials with stable performance and high efficiency.

铝酸锶系磷光体是一种性能稳定，发光效率高的光致发光材料，在可见光显示方面有着广泛的应用前景。

Photoluminescence test results found there are bimodal launch in red light areas, which is not reported in the past, we give an explanation to this in the end.

光致发光测试结果发现在红光区存在双峰发射，这是以前所没有报道过的，我们对红光发射给出了解释。

Morphology and photoluminescence investigation are disclosed that there exist strong correlation between the characteristics of the surface morphology and PL, i.e., the samples prepared with lower Ni~(2 ) concentration are exhibited more regular surface morphology, stronger PL, as well as narrower PL band.

实验表明，样品的表面形貌与其光致发光特性之间存在强烈的关联：采用具有较低Ni~(2 )浓度的腐蚀液所制备的样品表面形貌更为均匀，并具有相对较强的发光和较窄的发光峰。

Four non-ionic europium complexes,〓-phen(11),〓·bipy(12),〓·dia(13) and 〓(14)(TTA=2-thenoyltrifluoroacetone, DBM=dibenzoylmethane, phen=phenanthroline, bipy=2,2'-bipyridine, dia=4,5- diazafluoren-9-one, dmbp=4,4'-dimethyl-2,2,-bipyridine), were synthesised and the triboluminescent phenomena of 12, 13 and 14 were firstly observed. Structure determinations of 11,12 and 14 were carried out. The triboluminescence maxima of 12 and 13 are similar to those of their photoluminescence. X-Ray structure analyses show that Eu atoms all exhibit eight-coordinate tetragonal antiprismatic geometries and complexes 11, 12 and 14 are all centrosymmetric.

二、合成了四个非离子型的铕的配合物：〓、〓、和〓(14)[HTTA=2-噻吩三氟甲酰丙酮，DBM=二苯甲酰基甲烷，phen=邻菲罗啉， bipy=2，2'-联吡啶，dia=4，5-二氮杂芴-9-酮，dmbp=4，4'-二甲基-2，2'-联吡啶]，首次报道了12、13及14的摩擦发光性质，测定了11、12及14的晶体结构，并系统地讨论了晶体结构和摩擦发光活性之间的关系。12及13的摩擦发光光谱的极大值均类似与其相应的光致发光光谱，表明它们有相同的激发态。

The characteration of 15 will may provide a new pathfor searching new triboluminescent complexes. The triboluminescence maximum of 15is similar to that of its photoluminescence. The disorder of the thienyl rings and 〓groups in 15 may be responsible for its triboluminescent activity.

Eu的距离为4.2137(9)〓。两个桥联O原子与两个Eu构成一平面四边形，∠Eu(1)-O(7)-Eu(1A)和∠O(7)-Eu(1)-O(7A)分别为117.84(14)°和62.18(14)°。15的摩擦发光光谱与其光致发光光谱很类似，表明它们有相同的激发态。15的摩擦发光活性可能与其结构中噻吩环及〓的无序有关。

Undoped zinc silicate film shows a weak UV emission while Mn doped willemite shows intense photoluminescence in visible region.

光致发光光谱分析表明，未掺杂的薄膜在紫外波段有较弱的发射，而掺锰的硅酸锌薄膜在可见光波段有很强的光致发射。

Photoluminescence spectra show that the emission peaks of compound 3 and 4 are at 612 nm and 630 nm, chrysoidine and red-emitting light, respectively.

光致发光光谱测试结果表明，化合物3的发光峰值为612 nm，橘红色光；化合物4的发光峰值为630 nm，发红色光。

We also report here firstly a crystal structure of a dinuclear triboluminescent complex.

本论文主要报道了十余个新的稀土摩擦发光配合物的合成、晶体结构、光致发光光谱及摩擦发光光谱。

The coordination geometry of the Eu atom is best described as a strongly distorted square-antipyrism.. The two Eu atoms are bridged by two N-oxide oxygen atoms forming a dimeric unit with crystallographic inversions centre. The Eu……Eu distance is 4.2137(9)〓. The two europium atoms and two bridging oxygen atoms is coplanar. The angles of Eu(1)-O(7)-Eu(1A) and O(7)-Eu(1)-O(7A) are 117.82(14)° and 62.18(14)°, respectively. 15 is the first dinuclear triboluminescent lanthanide complex reported.

同时还测定了其摩擦发光光谱与其光致发光光谱，并讨论了晶体结构和摩擦发光活性之间的关系。X-射线结构分析表明，15为有对称中心结构的配合物，每个Eu与三个HTTA的六个O原子和两个PyO的两个O原子形成八配位的四方反锥几何构型，2个N-Oxide O原子桥联两个Eu，形成了一个双核配合物，Eu。。。。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。