有机光伏器件激活层的微结构有序性与电荷输运

本文在对有机光伏电池载流子产生机理分析的基础上，从有机光伏电池激活层的微观结构对光电转换效率影响的角度，系统介绍了目前该领域的一些重要研究成果，详细分析了影响光电转换效率的主要因素，并提出了一系列改善光伏电池效率的方法，对未来该领域的研究作了展望。     

受体型有机光伏材料苝二酰亚胺

苝二酰亚胺作为一种典型的n型材料，具有可见光区强吸收、光和热稳定性较高等突出优点，近年来应用到有机光伏达电池中。本文介绍了苝二酰亚胺及其各种衍生物的结构和性质，综述了其用作有机光伏受体材料（包括小分子型苝二酰亚胺材料、含苝二酰亚胺受体单元的给体-受体双功能分子和含苝二酰亚胺受体单元的给体-受体双缆型聚合物材料）的最新研究进展。     

面向非富勒烯型有机光伏电池的聚合物给体材料设计

可溶液加工的有机光伏电池(OPV)是一种具有重要应用潜力的新型光伏技术。在OPV技术的发展过程中,富勒烯衍生物作为电子受体材料占据了相当长时间的统治地位,因此聚合物给体材料设计中对如何与富勒烯受体材料相互匹配考虑较多。最近几年来,基于聚合物给体和非富勒烯有机受体的OPV电池,简称为非富勒烯型NF-OPV,得到了十分快速的发展。在此类电池中,聚合物电子给体和非富勒烯型电子受体材料均起到了十分重要的作用。相比于较为经典的富勒烯型OPV,NF-OPV对聚合物给体的光电特性和聚集态结构提出了新的要求。因此,本文针对NF-OPV的特点,重点介绍NF-OPV对聚合物给体材料的吸收光谱、分子能级以及聚集态结构等特征的新要求,总结最近几年来的相关进展,并在此基础上进一步讨论聚合物电子给体材料面临的挑战和展望。     

有机光伏器件激活层的微结构有序性与电荷输运

本文在对有机光伏电池载流子产生机理分析的基础上,从有机光伏电池激活层的微观结构对光电转换效率影响的角度,系统介绍了目前该领域的一些重要研究成果,详细分析了影响光电转换效率的主要因素,并提出了一系列改善光伏电池效率的方法,对未来该领域的研究作了展望。     

有机光伏器件激活层的微结构有序性与电荷输运

本文在对有机光伏电池载流子产生机理分析的基础上,从有机光伏电池激活层的微观结构对光电转换效率影响的角度,系统介绍了目前该领域的一些重要研究成果,详细分析了影响光电转换效率的主要因素,并提出了一系列改善光伏电池效率的方法,对未来该领域的研究作了展望.     

稀土有机光→电、电→光转换器件

198 6年Ｔａｎｇ发表双层有机光伏电池[1] 与无机光伏电池相比 ,以重量轻 ,材料经济并可以沉积在柔性衬底上等潜在优势正在引起人们注意。目前对有机光伏效应的研究多集中在聚苯乙炔 (ＰＰＶ)及其衍生物上[2 ,3 ] ,能量转换效率在 10ｍＷ·ｃｍ- 2 紫外光照下可超过 4 % [4 ] ;以小分子有机物制成的光伏器件也得到研究人员的关注[5,6] 。但是采用稀土配合物作为电子给体层的有机光伏器件还未见报道。我们研究组一直对以稀土有机配合物为发光层的有机ＥＬ器件进行研究[7,8] 。在研究ＥＬ器件特性过程中 ,我们发现稀土有机电致发光器件在紫外…     

有机光伏薄膜的力学性能调控与预测

有机光伏电池(OPVs)具有颜色丰富、质轻、柔性等优点,在半透明、可穿戴/可拉伸电子器件领域具有极大的应用前景.本文重点评述了高效率有机光伏活性层薄膜的力学性能调整策略,并概述了其力学性能的理论预测模型.首先,简要介绍了薄膜的力学性能参数及其测试方法;随后,结合最新实例分别阐述了聚合物∶小分子和全聚合物两类OPVs共混薄膜力学性能的调控方法和理论模型;最后,对有机光电薄膜未来的研究趋势进行了展望.     

聚合物太阳能电池光伏材料的研究进展

聚合物太阳能电池由于成本低廉、轻薄灵活、光伏材料分子结构的可设计性等优点成为近年来太阳能电池研究与开发的热点.光电转化效率较低一直是制约此类电池商业化的关键问题,而影响效率的因素包括电池结构、光伏材料的选择、以及电池的组装技术等.本文简要介绍了聚合物太阳能电池的工作原理,对电池光敏层结构的研究进展以及给、受体材料的种类...     

基于苝酸酯受体光伏器件的性能表征

近十几年来，基于有机聚合物半导体材料的太阳能电池，由于具有价格低廉，易于加工，不受材料种类限制和易于制备大面积柔性器件等优点，而受到极大关注．自从1992年发现从共轭聚合物的基态到富勒烯存在光诱导电子转移现象以来，有机聚合物太阳能电池的研究取得了较大进展，研究较多的是共轭聚合物为给体(D)，富勒烯为受体(A)的体系，能量转换效率可达3．3％，苝酸酯是一类液晶材料，其结构高度有序且含有4个吸电子的酰基，使得它们适合电子传输，且在普通有机溶剂中具有良好的溶解性，与共轭聚合物有较好的相容性，因此可制成薄膜，本文的研究表明，苝酸酯也是一类良好的电子受体，与共轭聚合物给体匹配，可用于制备光伏器件——太阳能电池。     

聚合物太阳能电池材料的研究进展

有机光伏技术为太阳能的有效利用提供了一条重要途径。有机太阳能电池因制造成本低廉、材料质量轻、加工性能好、易于携带等优势而备受关注。提高有机太阳能电池的光电转换效率是目前乃至未来的研究重点。设计和合成适合的窄带隙的共轭聚合物是提高有机太阳能电池光电转化效率的核心。综述了近年来基于窄带隙的共轭聚合物的太阳能电池材料的设计、制备和器件性能研究进展,探讨了目前存在的亟待解决的关键基础问题和未来发展方向。     

卟啉－苝酰亚胺分子阵列的合成及应用进展

由于卟啉与苝酰亚胺基元之间存在高效的能量转移或电子转移过程, 卟啉-苝酰亚胺分子阵列表现出优良的光电性能, 在有机分子器件、有机太阳能电池和光收集材料等高新技术领域展示出广阔的应用前景. 综述了近十几年来卟啉-苝酰亚胺分子阵列的合成及应用研究进展, 并展望了其发展前景.     

Recent advances of dithienobenzodithiophene-based organic semiconductors for organic electronics

In recent years, fused aromatic dithienobenzodithiophene(DTBDT)-based functional semiconductors have been potential candidates for organic electronics. Due to the favorable features of excellent planarity, strong crystallinity, high mobility, and so on, DTBDT-based semiconductors have demonstrated remarkable performance in organic electronic devices, such as organic feld-effect transistor(OFET), organic photovoltaic(OPV), organic photodetectors(OPDs). Driven by this success, recent developments in the area of DTBDT-based semiconductors for applications in electronic devices are reviewed, focusing on OFET, OPV, perovskite solar cells(PSCs), and other organic electronic devices with a discussion of the relationship between molecular structure and device performance. Finally, the remaining challenges, and the key research direction in the near future are proposed, which provide a useful guidance for the design of DTBDT-based materials.     

Thieno[3,4-b]pyrazines and their applications to low band gap organic materials

The application of fused-ring thieno[3,4-b]pyrazines in conjugated organic polymers has been found to be a powerful approach to the production of low band gap materials. While thieno[3,4-b]pyrazine-based materials date back to the early 1990s, significant advances in the preparation and scope of thieno[3,4-b]pyrazine-based materials have been reported in recent years, primarily in response to the increasing demand for reduced band gap materials in photovoltaic devices. In this review, we provide an overview of thieno[3,4-b]pyrazines and their application to conjugated materials, highlighting in particular the recent advances in the breadth of thieno[3,4-b]pyrazine building blocks and the promise of tuning materials to achieve optimal properties for specific applications.     

Conjugated Polymers as Hole Transporting Materials for Solar Cells

In principle, conjugated polymers can work as electron donors and thus as low-cost p-type organic semiconductors to transport holes in photovoltaic devices. With the booming interests in high-efficiency and low-cost solar cells to tackle global climate change and energy shortage, hole transporting materials(HTMs) based on conjugated polymers have received increasing attention in the past decade. In this perspective, recent advances in HTMs for a range of photovoltaic devices including dye-sensitized solar cells(DSSCs), perovskite solar cells(PSCs),and silicon(Si)/organic heterojunction solar cells(HSCs) are summarized and perspectives on their future development are also presented.     

π-共轭分子堆积、光电性能与超分子调控

介绍了π-共轭分子堆积模式与发光效率和载流子迁移率的关系, 以及分子堆积模式的调控方法, 特别是超分子相互作用在实现分子堆积模式调控中的作用等相关实验和理论研究进展.     

New advances in small molecule hole-transporting materials for perovskite solar cells

Organic π-functional molecules are the foundation and basic component of organic optoelectronic devices.For example,for ideal carrier transporting materials,extended π-conjugation and ordered π-πstacking are necessary to enhance the charge mobility and achieve desirable results.As a promising way to convert sunlight into electricity,organometal halide perovskite solar cells(PSCs) have captured a lot of attention due to its predominant merits especially in the aspect of remarkable photovoltaic performance and much potentially low production cost.For conventional planar PSC structure,hole-transporting layer which typically consists of organic π-functional materials plays a key role in suppressing holeelectron pair recombination,promoting charge transporting and ensuring ohmic contact of back electrode.Considering the key roles of HTMs and its soaring progress in recent years,here,we will summarize recent progress in small organic π-functional materials from its diverse functions in PSCs.Besides,aiming to further promote the development of organic π-functional molecules and HTMs,a promising direction toward highly efficient HTMs will also be discussed.     

二嗪类有机光电功能材料的应用进展

在过去的几十年里,有机电子学作为一个新兴领域迅猛发展,为科学技术的进步作出了巨大的贡献.有机材料被应用在各种电子器件中,并取得了卓越的成效.作为使用在电子器件中最基本的组分,有机光电材料更是备受瞩目.二嗪类化合物具有优异的光电性能,是光电材料领域最活跃的研究方向之一.两个N原子相对位置的不同,可以构成三种异构体,分别为哒嗪(1,2-二嗪)、嘧啶(1,3-二嗪)和吡嗪(1,4-二嗪),从而有效地调控材料的电子结构,且可以影响二嗪化合物不同位置的修饰,从而得到了广泛关注.本文对近年来二嗪类化合物在光伏材料、薄膜半导体材料、液晶材料、传感材料和电致发光材料等领域的研究进展进行了较全面的总结和评述,指出目前基于二嗪类化合物的光电材料所面临的困难以及未来的发展方向,最后展望了二嗪类化合物作为杂环类有机光电功能材料的应用前景.     

Organic photoresponse materials and devices

Organic photoresponse materials and devices are critically important to organic optoelectronics and energy crises. The activities of photoresponse in organic materials can be summarized in three effects, photoconductive, photovoltaic and optical memory effects. Correspondingly, devices based on the three effects can be divided into (i) photoconductive devices such as photodetectors, photoreceptors, photoswitches and phototransistors, (ii) photovoltaic devices such as organic solar cells, and (iii) optical data storage devices. It is expected that this systematic analysis of photoresponse materials and devices could be a guide for the better understanding of structure-property relationships of organic materials and provide key clues for the fabrication of high performance organic optoelectronic devices, the integration of them in circuits and the application of them in renewable green energy strategies (critical review, 452 references).     

Electron transporting semiconducting polymers in organic electronics

Significant progress has been achieved in the preparation of semiconducting polymers over the past two decades, and successful commercial devices based on them are slowly beginning to enter the market. However, most of the conjugated polymers are hole transporting, or p-type, semiconductors that have seen a dramatic rise in performance over the last decade. Much less attention has been devoted to electron transporting, or n-type, materials that have lagged behind their p-type counterparts. Organic electron transporting materials are essential for the fabrication of organic p-n junctions, organic photovoltaic cells (OPVs), n-channel organic field-effect transistors (OFETs), organic light-emitting diodes (OLEDs) and complementary logic circuits. In this critical review we focus upon recent developments in several classes of electron transporting semiconducting polymers used in OLEDs, OFETs and OPVs, and survey and analyze what is currently known concerning electron transporting semiconductor architecture, electronic structure, and device performance relationships (87 references).