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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。
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The structure shown in the figure : The governing body received direct or roller drying cylinder, as the main components of the rotation; After finishing the outside of the sphere, Bottom Cover and soak spherical carbon graphite seal ring joint seal reliable seal friction deputy, Sealing ring in the spherical shell of its annular space sliding, in addition to oil-free bearings and with the close cooperation of Shell, Rotating connector so that the free support, and therefore do not require a high level of accuracy installed; Spherical seal ring wear, Spring means of pressure at any time in advance to receive compensation, compensation for the shell slowly moved backward, accessible through the tube outside the inscription on the line to observe the seals wear; When steam, Oil flows through the media or other spherical sealing ring and oil-free bearings, the formation of thin liquid film, sealing and lubrication, thereby reducing friction and wear, extending the service life.
其结构如图所示:外管体直接接到辊子或烘筒上,为主要的旋转部件;经过精加工的外管本球面、底盖和浸泡碳石墨球面密封环共同组成密封可靠的动密封磨擦副,球面密封环在其壳体内的环形空间中滑动,加之无油轴承与壳体的密切配合,使旋转接头自由支撑,故对装机精度要求不高;球面密封环磨损后,借助于弹簧的预压力随时得到补偿,补偿时壳体缓缓向后移动,并可通过外管体上的刻线观察到密封件的磨损程度;当蒸汽、油或其它介质流经球面密封环和无油轴承时,形成一层很薄的液膜,提供密封和润滑,从而减轻了摩擦和磨损,延长了使用寿命。
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Exclusive use of a small handkerchief leading a full set of professional cleaning equipment, crystal lamp, crystal lamp with German imported special cleaning ingredients, the leading non-removable particles low pressure spray cleaning method of degaussing Quick-drying, quick-drying on the washing crystal lamp degaussing work, the entire process is completely lamps instead of demolition to ensure that lamps intact, delicate detailed in-depth security, no matter how high, how complicated, can be "accurate, professional, and speed."
小手帕独家采用国际领先专业水晶灯全套清洗设备,配合德国进口专用水晶灯清洗配料,国内领先的无拆装低压微粒子喷射消磁速干清洗方式,对水晶灯进行清洗速干消磁工作,整个过程完全无须拆卸灯具,保证灯具丝毫无损,精致入微的安全,不管多高,多复杂,都可以做到&精确、专业、速度&。
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cytogamy:胞质配合
文章摘要:对上海四膜虫(Tetrahymena shanghaiensis)有小核细胞和无小核细胞的接合过程进行了跟踪观察,发现在四膜虫中也存在胞质配合(cytogamy). 在接合对中,有小核细胞一方可以完成正常的减数分裂过程,既有配子核的形成、配子核的融合、配子核分裂,
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azygobranchiate:单侧鳃的
azurophil granule 嗜苯胺蓝粒 | azygobranchiate 单侧鳃的 | azygosperm 单性接合孢子,无配合子,拟接合子
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azygos:不成对的部分, 无对偶的部分, 单一器官
azygomatous | 无合弧的 无颧弓的 | azygos | 不成对的部分, 无对偶的部分, 单一器官 | azygosperm | 非接合子, 无配合子
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azygosperm:非接合子, 无配合子
azygos | 不成对的部分, 无对偶的部分, 单一器官 | azygosperm | 非接合子, 无配合子 | azygospore | 单性接合孢子 无配合子
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azygosperm:单性接合孢子,无配合子,拟接合子
azygobranchiate 单侧鳃的 | azygosperm 单性接合孢子,无配合子,拟接合子 | azygospore 无性接合孢子,无配合,拟接合孢子