柔性CuS透明导电薄膜的制备及性能表征

采用化学浴沉积法,以硫酸铜和硫代乙酰胺为前体、乙二胺四乙酸二钠(EDTA-2Na)为铜离子络合剂,控制Cu和S元素的摩尔比为1∶2,在80℃下反应4h,于柔性衬底聚对苯二甲酸乙二醇酯(PET)上成功制备了Cu S透明导电薄膜。利用紫外可见分光光度计(UV-Vis)、X射线衍射仪(XRD)、场发射扫描电子显微镜(FESEM/EDS)、四探针测试仪以及薄膜导电性弯曲测试装置对Cu S透明导电薄膜进行了表征研究。结果表明,制备的导电薄膜由均匀致密六方型的Cu S纳米片组成,具有良好的导电性和透光率,且可根据不同的应用要求,通过改变反应条件方便地进行调控。Cu S透明导电薄膜的最低方块电阻值仅为20?/。经过250次大尺度弯曲实验,Cu S透明导电薄膜依然保持理想的导电能力。     

柔性透明导电膜的研究进展

随着电子器件,特别是平板显示器朝轻薄化方向的快速发展,柔性透明导电膜因其具有重量轻、柔软性好等优点而相应成为研究的热点。本文结合近年来柔性透明导电膜领域的最新研究成果,综合介绍其特性、种类、主要制备工艺技术及市场应用情况,最后展望了柔性透明导电薄膜研究发展的趋势,即正朝着高品质、高效率、低成本、环保的方向发展,虽然现在工业应用仍以氧化物透明导电薄膜为主,但银盐法和印刷法导电网格膜、导电高分子膜、金属纳米导电涂层材料、碳纳米管等新型柔性透明导电膜的制备技术、工艺不断完善,透明导电薄膜材料市场必将呈现多元化。     

转印法制备薄膜太阳能电池用银纳米线–聚合物复合透明导电薄膜

以自制银纳米线分散液为原料,聚氨酯(PU)为可剥落树脂,在聚对苯二甲酸乙二醇酯(PET)衬底上,利用转印法制备了可用于薄膜太阳能电池的银纳米线–可剥离树脂复合透明导电薄膜,并采用四探针测试仪、紫外–可见光光度计等技术测试了其方块电阻、可见光波段透过率和雾度,分析了分散液浓度、热处理温度与时间对银纳米线透明导电薄膜光电性能的影响。结果表明:随着分散液浓度的降低,银纳米线透明导电薄膜的透过率提高,但同时方块电阻增大;热处理可显著改善透明导电薄膜的导电性,透明导电薄膜的方块电阻随着热处理温度增加、时间延长均呈现出先降低后升高的现象,透过率则随热处理温度增加而提高;在150℃热处理5 min后,银纳米线透明导电薄膜的方块电阻为42?/sq,透过率为85.7%,雾度13.52%。     

掺锡氧化铟薄膜应用于电热玻璃

用直流磁控反应溅射技术,在玻璃表面淀积掺锡氧化铟透明导电薄膜(简称ITO膜),成功地应用到飞机、机车、船舶等电热玻璃上.该技术的研究成功,为我国电热玻璃的更新换代闯出了新的途径.本文介绍了ITO薄膜的特性、导电原理及其制备方法,对关键工艺参数进行较详细地讨论.实验结果表明,以ITO膜为导电材料制备的电热玻璃,克服了以往电热玻璃所有缺点.并且,还具有独特的光学性能,既可节省能源,又对驾驶员的身心健康起到了保护作用.     

原位聚合沉积透明导电聚苯胺薄膜的研究进展

苯胺在化学氧化聚合过程中,可自发地聚合沉积在不同基体表面,形成透明导电聚苯胺薄膜。重点介绍近年来国内外在玻璃、聚合物、纤维织物和二氧化硅基体表面原位聚合沉积透明导电聚苯胺薄膜的研究进展,并探讨了反应机理。展望了透明导电聚苯胺薄膜在光电器件和微电子器件领域的应用前景。     

柔性透明导电氧化物薄膜的制备及应用进展

柔性透明导电氧化物薄膜以其可挠曲、柔性好、质量轻等优点在柔性薄膜太阳能电池、有机发光二极管及汽车隔热膜等领域具有较好的应用前景。综述了透明导电氧化物(TCO)薄膜的种类、目前柔性透明导电氧化物薄膜的制备技术及优缺点,对柔性TCO薄膜在各个领域的应用和未来研究方向进行了展望：柔性透明导电氧化物兼具柔性、透明性和导电性,因柔性衬底大多不耐高温,应选择合适的衬底材料和制备方法,开发成本低、绿色环保、资源丰富、高性能的柔性TCO薄膜对提高光电子产业竞争力具有重要作用。     

稀土Eu光转换材料的合成

以聚二甲基硅氧烷（PDMS）为配体,以三苯基氧膦（TPPO）为协同配体,合成稀土铕高分子透明薄膜。用荧光、红外光谱对薄膜进行表征。结果表明薄膜具有良好的荧光性质,并且发现Eu^3＋直接键合到PDMS链中的氧原子上。荧光光谱表明配合物同时具有PDMS和Eu^3＋的特征发射。     

AZO/AgNWs/AZO复合薄膜的制备及稳定性研究

利用磁控溅射和旋涂法在普通硼硅玻璃上制备了AZO/AgNWs/AZO复合透明导电薄膜。利用XRD对AZO/AgNWs/AZO的结晶性进行测定,发现复合薄膜结晶质量良好;通过SEM观察到AgNWs网络均匀地分布在AZO层之间,形成透明的导电薄膜。运用紫外分光光度计、四探针测试仪等仪器对薄膜的透过率和方阻进行了系统的研究。结果发现,随着旋涂次数的增加,样品的透过率和方阻均呈下降趋势,中间层AgNWs旋涂3层时,薄膜质量因子最高,达到8.3×10~(-3)Ω~(-1),透过率为77.154%,方阻仅8.9Ω/sq.,此外,在电流的耐受性测试中,复合薄膜表现出比纯AgNWs薄膜更好的电流耐受性;在环境稳定性测试中,复合薄膜在空气中放置15天后,方阻仅增长了0.13倍,而纯AgNWs薄膜增长了5.2倍。     

二氧化锡透明导电薄膜的研究进展

透明导电薄膜具有透明性和导电性,在平板显示器、太阳能电池、触摸屏等领域有着重要的作用。SnO_2是制备透明导电薄膜最具潜力的材料之一。结合国内外SnO_2透明导电薄膜的研究现状,主要对SnO_2薄膜的透明导电原理、制备方法和掺杂改性研究进展进行综述。     

导电玻璃

导电玻璃是在玻璃表面上复盖一层透明的导电薄膜而成,它既保持了玻璃原有的透明特性,又具有一般玻璃所缺乏的导电性能。由于这种玻璃在近代科学技术领域内和各个工业部门中的广泛应用,已获得了很大发展。一、导电玻璃的制造方法将玻璃经过表面净化,再在加热到接近于它的软化温度时,在表面上附着一层透明导电的金属氧化物薄膜。有五种不同的表面处理方法,简述于下: 1.真空气化法:这种方法是在真空下(10~(-3)～10~(-5)毫米汞柱)加热金属(例如金、银、铜、锡、镉等)到沸点以上的温度,使之气化并凝结在玻璃的表面上,成为透明的金属     

银盐法制备透明导电膜的研究与应用

本文研究了银盐法制备透明导电膜的方法。该方法是通过对特制的银盐感光胶片进行曝光和显影加工,在聚酯片基上形成由金属银构成的网格图案,再经化学镀处理,制得透明导电膜。该透明导电膜的透光率可达80%,根据不同用途,其表面电阻在0.1~1000Ω/□宽广范围内可调控。该方法可用于制造PDP电视的透明电磁波屏蔽(EMI)膜;也可用于制造触摸屏的导电膜、聚合物和染料敏化太阳能电池的阳极,以替代ITO膜。此外,该方法还可延伸到制作RFID电子标签超高频天线等,具有广泛的应用前景。     

新型防静电软塑包装复合材料研究及应用

通过探索导电炭黑填充量对薄膜导电性能的影响,优选了油炉法炭黑。将油炉法炭黑和聚乙烯(PE)树脂混炼造粒,制得半导电粒子,采用三层共挤吹膜工艺和电晕处理技术,制得高表面能防静电PE薄膜;将该薄膜与其它基材复合成物理力学性能优异的防静电软塑包装复合材料。该复合材料被广泛应用于对静电及电磁辐射敏感的电子、化工及军工产品的包装,起到良好的防静电、抗电磁干扰等防护作用。     

荧光灯制灯工艺对卤粉性能影响的研究

制作荧光灯时,灯用卤粉先后经过球磨、烤管、排气(或释汞)、老炼等工艺程序。这些工艺对卤粉发光性能的影响,主要在球磨、烤管工艺对卤粉发光性能的影响作过研究和报导。我国各制灯厂的制灯工艺尚未建立起严格的统一规范,因而同一性能的灯用卤粉在不同制灯厂的制灯水平差异较大,为此有必要就制灯工艺对卤粉发光性能的影响开展系统工作,以搞清不同制灯工艺对卤粉性能的影响并分析其原因,从而为改进卤粉应用特性和为消除不合理的制灯工艺对卤粉带来的有害影响,进而为提高荧光灯的光学性能提供有效的实验数据,对于提高灯的性能有着重要的经济价值。     

Silver nanowire-based transparent,flexible, and conductive thin film

The fabrication of transparent, conductive, and uniform silver nanowire films using the scalable rod-coating technique is described in this study. Properties of the transparent conductive thin films are investigated, as well as the approaches to improve the performance of transparent silver nanowire electrodes. It is found that silver nanowires are oxidized during the coating process. Incubation in hydrogen chloride (HCl) vapor can eliminate oxidized surface, and consequently, reduce largely the resistivity of silver nanowire thin films. After HCl treatment, 175 Ω/sq and approximately 75% transmittance are achieved. The sheet resistivity drops remarkably with the rise of the film thickness or with the decrease of transparency. The thin film electrodes also demonstrated excellent flexible stability, showing < 2% resistance change after over 100 bending cycles.     

Review on Shielding Mechanism and Structural Design of Electromagnetic Interference Shielding Composites

Conductive polymer composites (CPCs) for electromagnetic interference shielding have received significant attention and shown rapid development. According to the electromagnetic wave interface conduction theory of Schelkunoff, excellent conductive performance and perfect conductive network structure are prerequisites for high shielding efficiency of electromagnetic interference shielding composites. Effective multiple interface reflection absorption, dielectric loss, and hysteresis loss characteristics of the materials are crucial for realizing the regulation of the electromagnetic interference shielding performance of CPCs. Therefore, the structural design of conductive and magnetic network for CPCs is crucial for achieving high shielding performance. In this study, it is established that an electromagnetic shielding composite with a uniform structure is widely used because of its simple preparation process, but its inefficient conductive network causes a high percolation threshold. The inefficiency can be solved by designing a composite structure and improving the efficiency of the conductive network. Currently, common structural designs include segregated structural, layered structural, and foam structural designs. These structural designs effectively solve the problem of high percolation threshold of CPCs and coordinate the contradiction between the performance of electromagnetic interference shielding and other advantages.     

石墨烯/导电聚合物复合防腐蚀材料制备及应用研究进展

石墨烯/导电聚合物复合材料不仅具有石墨烯优异的屏蔽性能和导电聚合物良好的氧化还原特性,还能协同发挥二者的功能,在金属防腐蚀领域有着巨大的应用潜力。本文综述了石墨烯/导电聚合物复合防腐蚀材料的制备方法,包括电化学方法、化学氧化法、分散液混合法和化学气相沉积法（CVD）;并全面总结了石墨烯/导电聚合物复合材料在防腐蚀涂层中的应用及性能。制备的石墨烯/导电聚合物复合材料可以通过电化学方法、溶剂挥发法制成石墨烯/导电聚合物防腐蚀薄膜涂层,还可以混入成膜物树脂中制备树脂复合防护涂层。讨论了石墨烯/导电聚合物在制备过程、薄膜涂层和树脂复合涂层应用中的优势与不足,提出了构建结构可控、综合性能好的复合防腐涂层是石墨烯/导电聚合物复合防腐蚀材料的未来主要发展趋势。     

铝合金导电氧化工艺

常规的铝阳极氧化膜由于表面电阻大而无法满足产品的电磁屏蔽性能要求。为提高铝氧化膜的电磁屏蔽性和耐蚀性，提出了一种铝合金导电氧化工艺。介绍了其原理、工艺流程及工艺维护，测量了所得膜层的外观、导电性和耐蚀性。结果表明，该工艺所得氧化膜无色透明、导电性好，且具有一定的耐蚀性。     

Carbazole‐based electroluminescent devices obtained by vacuum evaporation

Transparent conductive oxide (SnO₂)/organic layers/aluminum thin film sandwich structures were obtained by vacuum evaporation. The organic component was either a thin carbazole film or a bilayer. In that case, the carbazole film was deposited onto a thin insulating polymer film. The polymer used was the poly(tetrabromo‐p‐phenyleneselenide) (PBrPDSe). Photoluminescence measurements have shown that the carbazole thin films emit blue light. (I‐V) measurements have shown that the structures exhibit diode characteristics. The forward direction is obtained when the transparent conductive oxide (TCO) is positively biased. However, the reproducibility of the results obtained with a single carbazole layer is poor. It appears that the stability of the sample is improved when a thin PBrPDSe film (40 nm) is introduced between the carbazole and the SnO₂. The polymer film avoids the short circuit effect. In that case, the turn‐on voltage of the diode is about 3 V, when the thickness of the carbazole film is around 250 nm and the electroluminescence appears at a voltage of about 5 V. It is shown that the thermionic effect cannot be used to explain the I‐V characteristics, which are interpreted with the help of the Fowler–Nordheim tunnel effect. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 2042–2055, 2001     

防辐射纤维及其织物的研究进展

介绍了电磁波辐射的危害、防护原理,以及防辐射纤维及织物的研究进展。详述了X射线、γ射线的防护及其织物的研究状况;简述了防辐射纤维及织物的发展趋势。指出应用纳米技术制成的具有屏蔽电磁辐射功能的纤维具有广阔的前景,频段更宽的电磁波的防护纤维及材料的研制和开发将成为发展趋势     

A PSS‐Free PEDOT Conductive Film Supported by a Hierarchical Nanoporous Layer Glass

The importance of transparent conductive film is increasing due to its use in applications such as touch‐panel devices. Although indium tin oxide is widely used because of its high conductivity and transparency, conductive polymers are being studied as alternative materials that avoid the use of rare metals and the brittleness associated with existing systems. Polyethylene dioxythiophene (PEDOT)/polyethylene sulfonic acid (PSS) is drawing a lot of attention due to its well‐balanced conductivity, transparency, film formability, and chemical stability. The nonconductive PSS reportedly covers the conductive PEDOT. The PSS shell provides carrier and film‐formability to PEDOT but is also a barrier that hinders electrical conductivity. Therefore, the PEDOT film formability is explored supported by a substrate without the addition of PSS. The “hierarchical nanoporous layer glass” holds the PSS‐free PEDOT with its nanopores to form a homogeneous, transparent film. The PSS‐free PEDOT film thus achieves transparency of over 85% and resistivity of below 500 Ω sq^?1.