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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。

Radioactive material, Briefcases and attache case with installed alarm devices.

放射性物质、装有警报装置的手提箱和公事包。

Variable optical attenuator is one of the key devices in wavelength-division multiplexing systems.

可变光学衰减器是波分复用系统的关键器件之一。

The three optional systems are part of the new generation of Audi devices.

这三个可选的系统是奥迪新一代设备的一部分。

Laser Products, Crystal laser crafts, gifts hairpin, gift comb, gifts of stainless steel tableware, gifts oiler, gift pen, gift clock, PC anti-fog mirror, convex mirror, mobile phone rub, rub camera, mobile phone anti-static strap, Warm handbags, all kinds of tag, doll key chain, infrared body sensor-controlled audible signal devices, hand-embroidered handicrafts, embroidered handicrafts, gifts glue chapter, giftsí, ethnic costumes, ethnic handicrafts, Acrylic / PS / PC / PVC lens.

激光产品，水晶内雕工艺品，礼品发夹，礼品梳，礼品不锈钢餐具，礼品油壶，礼品笔，礼品钟，PC防雾镜，凹凸镜，手机擦，摄像头擦，防静电手机吊饰，暖手袋，各种吊牌，公仔匙扣，红外线人体感应自控发声器，手工绣花工艺品，珠绣工艺品，礼品胶章，礼品皂盒，民族服饰，民族工艺品，亚克力/PS/PC/PVC镜片。

Application of media gateway technology, launched sobe First Class Service for multimedia conversion equipment - media server, thus the birth of a number of unique personality-related devices, such as using a variety of video and audio IO interface board video and audio media server for a wide range of media format conversion of documents between the high-performance media server.

应用媒体网关技术，索贝推出了一类用于多媒体转换服务的设备――媒体服务器，由此催生出一些具有独特个性的相关设备，如采用多种视音频IO接口板卡的视音频媒体服务器、用于多种媒体格式之间高效转换的文件媒体服务器。

Audio devices performances in playback are evaluated by their frequency response in the whole audio frequency range.

音频设备对于信号的重放能力是由其频率响应特性来衡量的。

One of the hardest tasks facing those who fit these devices is working out the precise choreography of the voltages and timings that need to be applied to the 20 or so electrodes embedded in the auditory nerve, in order to make them work properly.

莱格兰德使用了该方式来优化耳蜗的移植，这有助于人们提高听力安装这种装置的人遇到的最难的一个任务是，解决电压与同步的精确安排，因为需要这些来应用于深埋于听觉神经里的20来个电极，以让装置工作得更好。

As Australasia' and Asian leading supplier of professional audio products, Control Devices is proud to support the world's best and exceptionally engineered audio products.

作为大洋洲和亚洲的领先供应商的专业音响产品，控制设备感到自豪的是，支持世界上最好的和极好的工程音频产品。

Although the proposed approach can easily produce the multimedia application for mobile handset devices, it has to be used with a specific visual authoring system for the multimedia presentation template creation.

除此之外，提供样板机制，让使用者可以从网站上的下载喜爱的样板，只要做些修改就能产生出属於自己的互动式多媒体，不但可以减少编辑的步骤，更能增加互动式互媒体的吸引力。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。