CIS(CIGS)薄膜材料的研究进展

以CIS(CIGS)作为吸收层的太阳能电池因其诸多优异性能而成为最具潜力的第三代太阳能电池.首先介绍了CIS(CIGS)薄膜的性能与掺杂对电池的影响,讨论了多种薄膜沉积技术及其优缺点,重点介绍了几种低成本制备技术及其影响因素,最后阐述了CIS(CIGS)薄膜电池的发展情况,并展望了CIS(CIGS)电池的发展趋势.     

CIS and CIGS based photovoltaic structures developed from electrodeposited precursors

In the present study we report the electrodeposition and characterization of CIS and CIGS thin films and a post-deposition thermal processing in vacuum to improve the film stoichiometry by incorporating additional In, Ga and Se. Different kinds of analyses showed that CIS as well as CIGS possess a very thin In-rich surface n-layer. The formation and characterization of solar cell structures from the electrodeposited precursor with the configuration glass/Cr/Mo/CIS(CIGS)/CdS/ZnO/MgF₂ is also reported. The optoelectronic properties such as Voc, Isc, FF, η etc. of the cells are presented.     

基于移动Agent的B2B协作电子商务系统

电子商务必须建立在信息的获取和发布都能够及时、准确、全面的基础上，但是给观现有的基于Internet的电子商务应用系统，其信息共享模式难以满足企业间进行电子商务活动的这一基本要求，本文从企业间进行电子商务活动的需求和背景出发，依据我们对协同信息系统技术的研究成果，提出并实现了一个基于移动Agent的、支持企业网进行有效电子商务活动的信息系统的模型B－CIMSO，本文即是对该项研究工作的领域和总结。     

Compositional engineering of chemical bath deposited (Zn,Cd)S buffer layers for electrodeposited CuIn(S,Se)2 and coevaporated Cu(In,Ga)Se2 solar cells

A comparative study of chemical bath deposition (CBD) of ZnS, CdS, and a mixture of (Cd,Zn)S buffer layers has been carried out on electrodeposited CuIn(S,Se)₂ (CISSe) and coevaporated Cu(In,Ga)Se₂ (CIGS) absorbers. For an optimal bath composition with the ratio of [Zn]/[Cd] = 25, efficiencies higher than those obtained with CdS and ZnS recipes, both on co‐evaporated CIGS and electrodeposited CISSe, have been obtained independent of the absorber used. In order to better understand the (Cd,Zn)S system and its impact on the increased efficiency of cells, predictions from the solubility diagrams of CdS and ZnS in aqueous medium were made. This analysis was completed by in situ growth studies with varying bath composition by quartz crystal microbalance (QCM). The morphology and composition of the films were studied using scanning electron microscopy (SEM) and X‐ray photoelectron spectra (XPS) techniques. Preliminary XPS studies showed that films are composed of a mixture of CdS and Zn(O,OH) phases and not a pure ternary Cd_{1 − x}Zn_xS compound. The effect of the [Zn]/[Cd] molar ratio on properties of the corresponding CISSe and CIGS solar cells was investigated by current voltage [J(V)] and capacitance voltage [C(V)] characterizations. The origin of optimal results is discussed. Copyright © 2008 John Wiley & Sons, Ltd.     

电信CIS报警三字段信息的实时实现方案

本文介绍了电信话务各特服号报警指挥中心如何遵循信息产业部“信息不准拷贝、不准联网拷贝、报警时送三字段信息”的有关指示,建立能及时、准确地获得拨打各特服号码的主叫用户信息的实用系统,提出了相应的解决方案。经系统测试和实际运行,效果显著,具有广泛的应用前景。     

浅议GIS软件在二次调查中的应用

复杂的、综合性强的土地管理信息系统建设涉及网络、通讯、GIS和多媒体等多种计算机技术和多种软、硬件平台的集成。面对土地资源调查形成的海量数据,根据土地管理工作的特点,在不同情况下、不同层次选用适合的GIS软件平台是首要任务之一。     

太阳电池用CuInSe_2薄膜的电化学可控沉积

采用恒电位电沉积法制备了CuInSe_2薄膜材料,通过循环伏安分析探讨了Cu~(2+)、In~(3+)和H_2SeO_3单独沉积和共沉积的电化学行为,并研究了沉积电位对薄膜化学计量组成、形貌和物相组成的影响规律。研究表明:柠檬酸根离子对Cu~(2+)和H_2SeO_3具有络合作用,而对In~(3+)的络合不明显。共沉积时,Cu最先还原,然后诱导Se的沉积,两者反应形成的铜硒化合物Cu_xSe又诱导In的欠电位沉积,并与之反应生成CuInSe_2。在阴极电位为-0.58～-0.90Vvs.SCE时出现了不随电位变化的极限还原电流,在该电位范围内进行电沉积获得了化学计量组成稳定可控且相对致密平整的CuInSe_2薄膜。     

低顺橡胶挥发分含量测试的不确定度评定

以低顺橡胶P30AF为例,依据ASTMD5668-2009在电热恒温鼓风干燥箱中进行了挥发分含量测试,对其挥发分含量测试过程中的不确定度分量进行了分析和评定,并给出了具体数值。结果表明：低顺橡胶P30AF挥发分含量X=0．67％,扩展不确定度U=0．09％,包含因子k=2,置信概率p=95％;其测量不确定度主要来源为由样品的不均匀性引入的不确定度。     

CIS生产中的SMT与COB技术

表面贴装技术 (SMT)和板载芯片技术 (COB)在当今电子产品组装中起着越来越重要的作用。从工艺方案的确定至具体的工艺实施 ,介绍了表面贴装技术与板载芯片技术相结合的混装工艺在CIS生产中的应用。     

新型接触式图像传感器信号处理技术

接触式图像传感器（ＣＩＳ）是一种新图像传感器。由于ＣＩＳ头比ＣＣＤ部件更紧张,因此可使制成的产品体积更小。本文阐述了ＣＩＳ的特点、基本结构和信号处理技术;介绍了自行研制的ＣＩＳ信号处理系统,并给出了一组信号实测波形。