非共价相互作用控制的二维有机半导体薄膜:分子自组装,电子和光学性质,以及电子器件

IF 8.2 1区 化学 Q1 CHEMISTRY, PHYSICAL
Jia Lin Zhang , Xin Ye , Chengding Gu , Cheng Han , Shuo Sun , Li Wang , Wei Chen
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引用次数: 19

摘要

基于有机半导体(OSCs)在大面积、低成本、柔性、可穿戴和可植入器件等方面具有很强的竞争力,在过去的几十年里,人们一直在积极探索建立基于有机半导体的电子和光电产品。其中许多产品已经进入了我们的日常生活,比如基于有机发光二极管的显示器、便携式有机太阳能电池和有机场效应晶体管。OSC器件的器件性能由超分子组织(取向、形态)以及不同界面(有机/电极、有机/电介质、有机/有机)上的超分子组织依赖的能级排列决定。本文综述了非共价相互作用对有机薄膜分子自组装的影响、薄膜的电子和光学性质以及器件性能。从在具有不同界面相互作用强度的衬底(金属,绝缘体,半导体)上生长多个OSCs开始,已经证明了分子-衬底和分子间相互作用在决定薄膜组织中的关键作用。综述了影响有机材料固相能级的几种非共价相互作用,主要包括感应相互作用、静电相互作用、能带色散和界面偶极子。讨论了有机分子特定聚集中的激子耦合及其对其光学性质的影响。最后,讨论了弱分子间相互作用对器件性能的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Non-covalent interaction controlled 2D organic semiconductor films: Molecular self-assembly, electronic and optical properties, and electronic devices

The establishment of electronic and opto-electronic products relying on organic semiconductors (OSCs) has been intensely explored over the past few decades due to their great competitiveness in large area, low cost, flexible, wearable and implantable devices. Many of these products already entered our daily lives, such as organic light-emitting diodes-based displays, portable organic solar cells and organic field-effect transistors. The device performance of OSC devices are determined by the supramolecular organization (orientation, morphology) as well as the supramolecular organization dependent energy level alignment at various interfaces (organic/electrode, organic/dielectric, organic/organic). This review focuses on the impact of non-covalent interaction on the molecular self-assembly of organic thin films, their electronic and optical properties, as well as the device performance. Beginning with the growth of multiple OSCs on substrates with different interfacial interaction strengths (metals, insulators, semiconductors), the critical roles of molecule-substrate and intermolecular interactions in determining the thin film organization have been demonstrated. Several non-covalent interactions that contribute to the energy levels of organic materials in solid phase are summarized, mainly including the induction contributions, electrostatic interactions, band dispersions and interface dipoles. The excitonic coupling in specific aggregations of organic molecules and the corresponded effect on their optical properties are also discussed. Finally, the influences of weak intermolecular interactions on the device performance are presented.

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来源期刊
Surface Science Reports
Surface Science Reports 化学-物理:凝聚态物理
CiteScore
15.90
自引率
2.00%
发文量
9
审稿时长
178 days
期刊介绍: Surface Science Reports is a journal that specializes in invited review papers on experimental and theoretical studies in the physics, chemistry, and pioneering applications of surfaces, interfaces, and nanostructures. The topics covered in the journal aim to contribute to a better understanding of the fundamental phenomena that occur on surfaces and interfaces, as well as the application of this knowledge to the development of materials, processes, and devices. In this journal, the term "surfaces" encompasses all interfaces between solids, liquids, polymers, biomaterials, nanostructures, soft matter, gases, and vacuum. Additionally, the journal includes reviews of experimental techniques and methods used to characterize surfaces and surface processes, such as those based on the interactions of photons, electrons, and ions with surfaces.
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