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The characteristics of pentacene/perylene derivatives based organic solar cells are investigated in this thesis Donor and acceptor layers are pentacene and N N'-dioctyl-3 4 9 10-perylenetetracarboxylic diimide (PTCDI-2~13C) respectively Twelve organic solar cells with pentacene/PTCDI-2~13C heterojunctions were fabricated to study the influence of various alkylic perylene derivatives on the power conversion efficiency Under the sunlight simulator with AM1 5G filter and 100 mW/cm2 the solar cell of pentacene/PTCDI-7C heterojunction with cathode of Ag/Al bilayer has the best performance among the devices with pentacene/PTCDI-2~13C heterojunctions In PL spectrum analyses the pentacene/PTCDI-7C film had lower recombination rate than the other pentacene/PTCDI-2~13C films; therefore more excitons could reach the P/N junction and enhance short-circuit current Furthermore the PTCDI-7C film grown on the surface of penatcene was more matched than other PTCDI films analyzed by the PL peak shifts of 10 nm and 45 nm thick PTCDI-2~13C and images of atomic force microscope More lattice match between the films of pentacene and PTCDI resulted in fewer defects in P/N junction and more carries can reach electrodes Accordingly the power conversion efficiency approach 2% was obtained from the solar cell with the active layer of pentacene/PTCDI-7C

本研究探讨以五环素/骈苯衍生物异质接面太阳能电池之特性,利用pentacene作为电子施体有机材料,PTCDI -2C~13C作为电子受体有机材料,制作出异质接面为pentacene/ PTCDI-2C ~13C等12种有机太阳能电池,比较不同碳数的骈苯衍生物对於有机太阳能电池之光电转换效率之影响。在AM1 5G、100 mW/cm2的模拟太阳光下,以pentacene/PTCDI-7C异质接面太阳能电池具有短路电流9 882 mA/cm2、开路电压0 376 V、填充因数0 523及光电转换效率达1 945%,皆比其他pentacene/PTCDI-2C ~13C异质接面太阳能电池来的大。由薄膜分析可知PTCDI-7C在这12种太阳能电池中具有较低的电子电洞复合发光效率,可以让较多激子到达异质接面进行电荷分离,减少电子电洞对复合发光的机率;此外,由光激发萤光光谱之峰值位移配合原子力显微镜表面结构图,可以得知当PTCDI-7C成长在pentacene上时会顺著pentacene的结构成长薄膜,故较无缺陷产生在P/N接面处;而在其他结构下则无此现象产生,致使在pentacene/PTCDI-7C薄膜中的载子有较大的机会可以移动至电极,使光电流提高,进而使光电转换效率提高。

The experimental results show that this method is suitable to keep the spatial location undisturbed for the BCF, which has large denier and big monofilament numbers.

实验结果表明,对于纱线根数较多、旦数较大的BCF等纱线,该方法可保持纱线的纵向和横向的空间位置不改变,获得易于处理的原始数字图象。

The main reason for using float is to save storage in large arrays, or, less often, to save time on machines where double-precision arithmetic is particularly expensive.

使用float类型主要是为了在使用较大的数组时节省存储空间,有时也为了节省机器执行时间(双精度算术运算特别费时)。

The gait model is suitable for different inchworm locomotions of a snakelike robot whose traveling waves are formed by different numbers of identical links.

该步态模型可适用于运动波形由不同连杆数组成的蛇形机器人的蠕动,波形连杆较多或连杆夹角较大均可获得较大的运动速度。

Meanwhile, the isomer with a larger change of dipole moment has larger value of the first hyperpolarizability during the charge-transfer process.

5, 6, 7顶点双取代碳硼烷桥连分子受推拉电子基的影响,5, 6, 7顶点碳硼烷的构型发生一定变化,碳硼烷中两个C原子间的距离变长;同时碳硼烷中两个C原子取代位置的不同,影响了分子的稳定性和极化率,取代基团与碳硼烷中成键数较低的C原子相连的异构体,稳定性较好且具有大的极化率; 5,6,7顶点双取代碳硼烷桥连分子形成一维结构有利于分子内电荷转移,在电荷转移过程中偶极矩变化较大的体系,其二阶NLO系数也较大。

The reconstruction meshes of scattered point set are based on triangular meshes mainly, which makes the number of the meshes too large and can\'t operate them in real time.

散乱数据点的重建网格大多数基于三角形网格,对于规模较大的数据点集,重建网格的面片数目过多,不能满足实时处理的要求。

The contribution rate of total spikelet number per m2 tosink size was larger than that of grain weight.

超级稻品种产量的提升是沿着较大的穗子→1m2较多的总颖花数→较大的库容量→超高产这一主线推进的。

RAW Height Map#define STEP_SIZE 16 // Width And Height Of Each Quad#define HEIGHT_RATIO 1.5f // Ratio That The Y Is Scaled According To The X And Z HDC hDC=NULL;// Private GDI Device ContextHGLRC hRC=NULL;// Permanent Rendering ContextHWND hWnd=NULL;// Holds Our Window HandleHINSTANCE hInstance;// Holds The Instance Of The Application bool keys[256];// Array Used For The Keyboard Routinebool active=TRUE;// Window Active Flag Set To TRUE By Defaultbool fullscreen=TRUE;// Fullscreen Flag Set To TRUE By Defaultbool bRender = TRUE;// Polygon Flag Set To TRUE By Default 这里我们用了一个字节数组g_HeightMap

在这篇教程中图的大小是1024×1024.STEP_SIZE是我们用来绘制地形的正方体的大小,减小步长,地形图就会变得更加平滑。有一点很重要,步长越小你的程序所做的工作就将越多,特别是在使用大的高度图时。HEIGHT_RATIO用来缩放地形的Y轴的值,较小的HEIGHT_RATIO可以用来绘制较平的山,较大的HEIGHT_RATIO用来绘制较高的山。在下面的代码中,你会看到变量bRender。如果bRender的值为真,我们就填充模式绘制多边形,如果它的值为假,那么我们就用线框模式绘制地形。

This article has studied slowing release N fat to the cotton and the paddy rice growth growth influence, finally indicated: Slowing release N is fat and N fat to the cotton and the paddy rice output and the quality not obvious difference; But compares can obviously enhance the cotton the output, the bell number, the bell heavy gin turnout has the increase, a high increase, the fruit-bearing branch number increases, but to textile fiber quality not tremendous influence;Slowing release N fat fat compares the paddy rice community with N in a big way, stooling strong, Cheng Suilv high, ear of number of seeds many, the output production increase is remarkable; The quality hasthe big enhancement.

研究了缓释型氮肥对棉花和水稻生长发育的影响,结果表明:缓释型氮肥与氮肥对棉花和水稻产量和品质没有明显差异;但较对照能够明显提高棉花的产量,铃数、铃重衣分均有增加,株高增加,果枝数增加,但对纤维品质没有大影响;缓释型氮肥与氮肥较对照水稻群体较大,分蘖力强、成穗率高、穗粒数多,产量增产显著;品质有较大的提高。

In the paper, we investigate, respectively, the unsteady transport properties of heat and moisture in enclosure under constant wall heat flux and constant wall temperature when porous particles are small and Darcy number is lower, the effect of conductivity ratio, heating conditions and other parameters on the heat transfer rate of enclosure when particles are larger and Darcy number are higher.

并分别对多孔颗粒较小时的低Da数封闭腔内的非饱和渗流与传热,及颗粒较大的高Da数封闭腔内的非饱和自然对流行为进行了数值模拟,研究了低Da数时湿分与热量在恒热流与恒壁温条件下的非稳态传递特性,高Da数时封闭腔的传热与流动特性、达西效应以及导热比、加热条件等对空腔传热系数的影响。

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Plunder melds and run with this jewel!

掠夺melds和运行与此宝石!

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻,也许正是在通往天国的路上,我体验着这白色的晕旋。

When you click Save, you save the file to the host′s hard disk or server, not to your own machine.

单击"保存"会将文件保存到主持人的硬盘或服务器上,而不是您自己的计算机上。