导电聚合物-硫族半导体纳米复合发光薄膜研究进展

导电聚合物-硫族半导体纳米复合光电薄膜综合了无机、有机、半导体、纳米材料的多种功能,将会在光电领域有良好的发展前景.本文论述了硫族半导体、导电聚合物及其两者复合的纳米发光薄膜的最新研究成果,归纳了该类复合材料的主要制备方法并重点讨论了原位生成法的技术特点.最后提出了该类发光薄膜的关键问题和今后的发展方向.     

高分子系场致发光显示

高分子材料已广泛应用于日常生活 ,但人们对能导电发光的高分子材料尚不熟悉。这些所谓的导电聚合物 ,在近 2 0年间已引起研究人员的极大兴趣 ,只是尚未开发出引人注目的实用性材料。近 2、3年 ,聚合物系有机场致发光材料 (ＥＬ -Ｅｌｅｃｔｒｏｌｕ ｍｉｎｅｓｃｅｎｃｅ)的发展非常快 ,其特性已提高到实用化水平。高分子ＥＬ可制成各种发光器件 ,具有诸多的用途 ,特别是用于显示元件方面。1 高分子系ＥＬ1 1　高分子ＥＬ二极管1990年 ,英国剑桥大学科研人员从高分子材料中观测到场致发光 (ＥＬ) ,这就是ＬＥＰ(原文中无外文全称 ,疑为ｌ…     

碳基材料掺杂聚合物导电特性研究进展

导电聚合物可分为结构型导电聚合物和复合型导电聚合物,其中复合型导电聚合物主要是碳基材料或金属掺杂聚合物而得到。文中综述了碳基材料掺杂聚合物的导电机理和碳基材料掺杂聚合物导电特性的研究进展。导电机理主要有渗滤理论、隧道效应和场致发射理论等。目前应用于复合型导电聚合物的碳基材料主要为炭黑、碳纳米管和石墨烯等。文中还简要介绍了碳基材料掺杂聚合物的应用和发展趋势。     

聚合物基导电复合材料研究进展

本文介绍了聚合物基导电复合材料的种类、用途及导电机理。并对碳系填料填充聚合物基导电复合材料及金属系填料填充聚合物基导电复合材料的研究进展进行了综述 ,最后展望了聚合物基导电复合材料的发展趋势。     

导电聚合物基抗菌复合材料的合成及生物医用研究进展

以聚吡咯、聚噻吩和聚苯胺为代表的导电聚合物具有优异的导电特性和良好的生物相容性,在生物医学工程、临床医学等领域中有着广泛的应用。由导电聚合物与抗菌剂复合而成的导电聚合物基抗菌复合材料,有助于改善导电聚合物的抗菌性能,降低细菌感染的风险,避免导电聚合物优异的电学性质被细菌生物膜掩盖。本文总结了导电聚合物基抗菌复合材料的研究进展,重点介绍了这类复合材料的抗菌机制、合成策略以及在生物医学工程中的应用现状,最后展望了导电聚合物基抗菌复合材料的发展前景。     

纳米碳管/聚合物功能复合材料

纳米碳管(Carbonnanotubes,CNT)具有π π共轭电子结构,可与结构相似的聚合物(Polymer)通过范德华力结合形成复合材料。导电聚合物(Electricallyconductingpolymer,ECP)包覆多壁纳米碳管(Multi walledcarbonnanotubes,MWNT)后,可用于诸如超级电容器等电子器件。共轭发光聚合物修饰纳米碳管形成的CNT polymer复合材料,具有很强的发光性能,有望用于电子接收器和光电器件。通过连结氨基聚合物,可使多壁纳米碳管溶解和功能化,从而将纳米碳管引入生物学系统中。研究结果表明,CNT polymer复合物有许多潜在的应用,有待进一步发展。     

导电聚合物及导电聚吡咯的研究进展

综述了导电聚合物的发展历史，导电聚合物的结构特征和基础性能、导电聚合物的类型及其合成方法；然后重点介绍了导电聚吡咯的研究进展。     

碳纳米管/高分子复合材料的制备及应用研究进展EI北大核心

将碳纳米管掺杂到聚合物母体中形成的碳纳米管/高分子复合材料具有良好的力学、导电和非线性光学性质。在聚合物中添加少量碳纳米管可以明显改变聚合物的结晶和形貌。大量研究表明,这些复合材料在诸如太阳能电池、有机发光器件、光限幅、光学开关、防护涂料以及人造肌肉等方面具有潜在的实际应用价值。文中介绍了碳纳米管/高分子复合材料的制备方法及其在高科技领域中的应用潜能。     

碳纳米管/高分子复合材料的制备及应用研究进展

将碳纳米管掺杂到聚合物母体中形成的碳纳米管/高分子复合材料具有良好的力学、导电和非线性光学性质。在聚合物中添加少量碳纳米管可以明显改变聚合物的结晶和形貌。大量研究表明,这些复合材料在诸如太阳能电池、有机发光器件、光限幅、光学开关、防护涂料以及人造肌肉等方面具有潜在的实际应用价值。文中介绍了碳纳米管/高分子复合材料的制备方法及其在高科技领域中的应用潜能。     

导电聚合物改性TiO_2光催化剂合成及应用研究进展

近年来,有关导电聚合物改性TiO2光催化剂及其应用的研究发展迅速。基于导电聚合物改性TiO2光催化剂的合成方法、影响因素与表征手段,分析了TiO2光催化剂光催化机理、导电聚合物改性TiO2光催化剂光催化机理及光催化活性提高原因,探讨了光催化过程中的活性物种。同时,对导电聚合物改性TiO2光催化剂的回收利用进行综述,并对导电聚合物改性TiO2光催化剂研究进行了展望。     

高分子电致发光材料及器件的研究进展

高分子电致发光材料由于其卓越的性能,近年来取得了飞速发展。本文阐述了有机高分子电致发光材料的工作原理、种类及器件发展现状,并对今后的发展趋势和应用前景进行了展望。     

Recent Developments in the Application of Phosphorescent Iridium(III) Complex Systems

The recent developments in using iridium(III) complexes as phosphorescent emitters in electroluminescent devices, such as (white) organic light‐emitting diodes and light‐emitting electrochemical cells, are discussed. Additionally, applications in the emerging fields of molecular sensors, biolabeling, and photocatalysis are briefly evaluated. The basic strategies towards charged and non‐charged iridium(III) complexes are summarized, and a wide range of assemblies is discussed. Small‐molecule‐ and polymer‐based materials are under intense investigation as emissive systems in electroluminescent devices, and special emphasis is placed on the latter with respect to synthesis, characterization, electro‐optical properties, processing technologies, and performance.     

纳米复合技术在聚合物电致发光材料与器件中的应用

纳米复合技术的问世为改善聚合物电致发光材料与器件的性能开辟了新的途径,本文论述了纳米复合技术在聚合物电致发光材料与器件中的应用及发展前景.     

Study of optical properties and light induced effects on Inq3 thin film used in organic light emitting devices

In this report, the optical properties of tris-(8-hydroxyquinoline) metal complex Inq₃; used as light-emitting layer in electroluminescent (EL) devices are shown. The material has been synthesized and the thin films have been deposited by thermal evaporation on quartz and silicon substrates. The optical constants (n and k) of Inq₃ thin films have been determined using spectroscopic ellipsometry. Light induced effects on optical properties of films have been studied using ellipsometry, photoluminescence and UV–visible transmission measurements. Enhanced photoluminescence intensity with shift in peak position as well as modification in optical constants on light exposure in vacuum indicates phase transformation in Inq₃ films.     

ZnS基电致发光薄膜及其制备方法

ZnS是一种优良的光电材料并获得了广泛的应用。介绍了ZnS基薄膜电致发光器件的发展历史、结构及发光机理,主要讨论了ZnS基发光薄膜及蒸发法、溅射法、化学气相沉积法、外延法和溶胶-凝胶法等制备方法的最新研究进展,指出了目前存在的问题及今后的发展趋势。     

Textile Display for Electronic and Brain‐Interfaced Communications

Textile displays are poised to revolutionize current electronic devices, and reshape the future of electronics and related fields such as biomedicine and soft robotics. However, they remain unavailable due to the difficulty of directly constructing electroluminescent devices onto the textile‐like substrate to really display desired programmable patterns. Here, a novel textile display is developed from continuous electroluminescent fibers made by a one‐step extrusion process. The resulting displaying textile is flexible, stretchable, three‐dimensionally twistable, conformable to arbitrarily curved skins, and breathable, and can dynamically display a series of desired patterns, making it useful for bioinspired electronics, soft robotics, and electroluminescent skins, among other applications. It is demonstrated that these displaying textiles can also communicate with a computer and mouse brain for smart display and camouflage applications. This work may open up a new direction for the integration of wearable electroluminescent devices with the human body, providing new and promising communication platforms.     

无机薄膜电致发光研究进展

薄膜电致发光显示是平板显示的主要技术之一。文章在介绍了无机薄膜电致发光器件结构和工作原理的基础上，介绍了薄膜电致发光研究的一般方法，描述了无机薄膜电致发光的研究现状，分析了薄膜电致发光所面临的问题，重点探讨了解决蓝光问题的几种方案。蓝光亮度已能满足全色显示的要求，薄膜电致发光具有广阔的发展前景。     

The characteristics of inorganic electroluminescent devices with an amorphous diamond film as cathode material

Diamond like carbon (DLC) thin films were used as the cathode layers of inorganic alternating current driven thick dielectric electroluminescent devices. The results indicated that electroluminescent (EL) devices with DLC cathode has superior brightness over the EL with Al or Cr-doped DLC cathodes. Cr-doping in DLC thin film can increase the electrical conductivity, but degrades the EL properties. Also, the EL device with DLC cathode possesses the lowest decay rate among various cathodes, because of the high thermal conductivity and the inert nature of DLC film.     

A review on the light extraction techniques in organic electroluminescent devices

Organic electroluminescent devices are becoming increasingly important because of their potential applications for large area flat-panel displays and general lighting. The internal quantum efficiency of these devices have been achieved near 100% using electro-phosphorescent materials with proper management of singlet and triplet excitons, however, the external quantum efficiency of conventional devices remains near 20% because of losses due to wave-guiding effect. Recently, there has been great progress to enhance the light out-coupling efficiency of organic electroluminescent devices by means of various internal and external device modification techniques. In this review we report recent advances in light out-coupling techniques, such as, substrate modification methods, use of scattering medium, micro-lens arrays, micro-cavity effect, photonic crystals and nano-cavity, nano-particles, nano-structures and surface plasmon-enhanced techniques that have been implemented to enhance the external extraction efficiency of organic electro-luminescent devices.     

Effects of insulating layer on the performance of thin film electroluminescent devices

Thin film electroluminescent devices were fabricated with active layer of ZnS:Mn and different insulators viz Sm₂O₃, Eu₂O₃, Na₃A1F₆, MgF₂, CeO₂ and SiO in MIS and MISIM structure. The threshold voltage for light emission in AC thin film electroluminescent devices of MIS and MISIM structures is found to depend on the dielectric properties of insulating materials. The observed threshold voltage for these devices and its variations for devices with different insulators are explained using the equivalent circuit for the device and the dielectric properties of the insulting material used for the preparation of device. Variation of threshold voltage with operating time is also studied for some of the devices.