驱动AM-OLED的2-a-Si:H TFT的设计与制作

a-Si：H／SiNx：H TFT在长时间栅偏应力作用下，会产生阈值电压漂移，这主要是由绝缘层电荷注入和有源层亚稳态产生而引起的。针对电荷注入现象，文章首先通过控制源气体SiH4和NH3流量的不同，利用PECVD制作了不同N／Si比（0．87～1．68）的氮化硅绝缘材料，对其进行了椭偏、红外和光电子散射能谱（EDS）测试。制作了不同的MIS结构电容，对其进行老化实验和C-V测试分析，结果表明稍富氮（N／Si比稍大于标准Si3N4的化学计量比1．33）的氮化硅做成的M1S样品在老化前后C-V曲线偏移不是很明显，表明其缺陷态密度相对较小，能够有效减小半导体／绝缘层界面间的电荷注入。设计了驱动OLED的2-a-Si：H TFT像素电路及其阵列版图，优化了电路中的几个关键参数，即T1的W／L=2．5、T2的W／L=25和存储电容Cs=0．8pF。运用7PEP生产工艺，制作了13cm（5．2in）的TFT阵列样品。对TFT进行I-V特性测试，其开态电流为10μA，开关比为10^6；对AMOLED显示屏样品进行了静态驱动下的亮度测试，其最高亮度为341cd／m^2。     

松辽盆地北部西斜坡区稠油成因与油源关系

松辽盆地北部西斜坡区分布的稠油资源是油气勘探的潜在领域。油藏流体地球化学分析表明，该地区稠油形成主要与厌氧细菌的生物降解作用有关。稠油的高温气相色谱分析，可以把稠油划分为2种成因类型、5个亚类。生物降解成因类型包括严重降解稠油、中等降解稠油和轻度降解稠油3个亚类；混合成因类型包括降解原油与原油蒸馏轻烃混合形成的稠油和降解原油与未降解原油混合形成的稠油2个亚类。生物标志化合物参数揭示的油岩关系表明，稠油来自斜坡东部的齐家—古龙凹陷的成熟烃源岩和该地区的未熟—低熟烃源岩，优越的油源条件为该地区稠油勘探展示了广阔前景。     

塔里木河流域源流及干流水均衡分析

通过对塔里木河流域源流及干流的径流变化和水均衡分析 ,表明塔里木河源流来水基本稳定 ,由于源流灌区引水以及渗漏蒸发等损失加剧 ,干流水量存在减少趋势 ,并加剧了水量的时间分配不均 ,不利于干流农业的可持续发展和生态环境的维护与改善     

mc-Si:H/c-Si solar cell prepared by PECVD

Hetero-junction solar cells with an mc-Si:H window layer were achieved. The open voltage is increased while short current is decreased with increasing the mc-Si:H layer's thickness of emitter layer. The highest of V oc of 597 mV has obtained. When fixed the thickness of 30 nm, changing the N type from amorphous silicon layer to micro-crystalline layer, the efficiency of the hetero-junction solar cells is increased. Although the hydrogen etching before deposition enables the c-Si substrates to become rough by AFM images, it enhances the formation of epitaxial-like micro-crystalline silicon and better parameters of solar cell can be obtained by implying this process. The best result of efficiency is 13.86% with the V oc of 549.8 mV, J sc of 32.19 mA·cm-2 and the cell's area of 1cm2.     

Synthesis of ZSM-5 zeolite membranes without organic templates using a varying-concentration technique

Template-free nanosized ZSM-5 seeds with an average size of 15 nm were prepared from a synthesis solution with the composition 12Na2O:100SiO2:2Al2O3:2500H2O. By the use of these seeds, thin ZSM-5 zeolite membranes were prepared on the outer surface of a porous α-alumina tube with a pore size of 2 μm in a gel system by varying-concentration synthesis with organic-free template. The first composition synthesis sol-gel was the same as seeds of molar composition and the second one was 12Na2O:100SiO2:2Al2O3:5000H2O at 180 ℃ for 10 h, respectively. XRD shows that the film consists of well-crystallized ZSM-5 zeolite. SEM investigation indicats that the zeolite films on the supports are defect free and the film thickness is approximately 8 μm. The permeances for H2, N2, CH4 and CO2 are 8.94×10-7 , 3.27×10-7 , 3.9×10-7 , 3.14×10-7 and 0.874×10-7 mol·m2·s-1·Pa-1 , respectively. The ideal selectivity of membrane at room temperature for H2/CO2, H2/N2, H2/CH4 are 2.84, 2.73 and 2.29, respectively.     

纳秒级上升时间的高压脉冲群电源

按照IEC 61000-4-4/GB 17626.4—1998的要求，首先应用PSPICE仿真确定电路中各元件的参数值，然后基于拉普拉斯变换用MATLAB求解二阶电路验证各元件参数。在此基础上研制了一台以开关电源作为高压直流电源、以氢闸流管作为主控开关的脉冲群电源。该电源体积小、重量轻、效率高、成本低廉。试验结果表明，其输出信号符合标准要求，可用于快速瞬变脉冲群抗扰度试验。     

论薄板坯连铸连轧产品质量优势

通过对薄板坯连铸连轧工艺的分析，深入研究了其产品的质量优势，同时还指出了在产品生产过程中需要重点注意解决的一些问题。     

The impact of Ajax on network performance

Web 2.0 has been becoming the new tendency of the Internet development. In order to get better management of web 2.0 network resource and guarantee of service quality, the architecture and the advantages of web 2.0 over Ajax technology is analyzed, and the impact of Ajax on bandwidth performance of web application is discussed.     

星型聚合物中间体环硅氧烷核的合成研究

以甲基二氯硅烷、四甲基四乙烯基环四硅氧烷(DVi4)为原料,采用硅氢加成反应合成了星型聚合物的中问体环硅氧烷核,并用红外光谱和核磁共振谱进行了表征.反应的最佳条件是:采用预先活化、反应温度72℃、催化荆与DVi4的量之比为1.0×10-4,反应转化率可达95%,且选择性很好,产物主要为β-加成产物.