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Ambipolar Charge Transport in Organic Semiconductors and Devices

有机半导体和器件中的双极电荷传输

基本信息

批准号：
EP/C539524/1
负责人：
Thomas Anthopoulos
金额：
$ 16.56万
依托单位：
Imperial College London
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2006
资助国家：
英国
起止时间：
2006 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FC539524%2F1
关键词：
Ambipolar Charge Transport Organic Semiconductors

项目摘要

Recent years have seen tremendous advances in the area of organic electronics mainly motivated by their emerging applications in electronic devices. A very important electronic device that is in the heart of today's microelectronic circuits is the transistor since it represents the building block of all everyday electronics. Very recently, organic based transistors also made their debut in a number of electronic devices and can be arguably viewed as possible alternatives to silicon-based devices in a range of low-cost and high-volume applications.Although recent progress is impressive, use of organic transistors in practical applications is hampered because the minimum requirements (speed, power-dissipation, cost) presently cannot be meet. The proposed work addresses these specific problems using an entirely different approach. We will study the electronic properties of organic semiconductors that are capable of transporting both electrons and holes. These are the so-called ambipolar organic semiconductors. During this fellowship we will develop and advance the knowledge on ambipolar transport in organic semiconductors but we will also exploit and assess various technologically relevant phenomena.We will first study ambipolar transport in a number of known ambipolar organic semiconductors through a combination of electrical, structural, chemical and spectroscopic measurements. Understanding the key electronic properties of these materials is essential for the development of improved or new semiconductors that will be subsequently synthesized through collaborations with various chemistry groups. Using the obtained knowledge, we will demonstrate ambipolar organic transistors and, initially, basic logic circuits like voltage inverters. New applications such as light-emitting transistors and sensors are expected to arise as a result of this work. Moreover, understanding ambipolar transport in organic materials is of basic scientific interest and is expected to benefit other scientific disciplines including chemistry and material science.

近年来，有机电子领域取得了巨大进步，主要是由于其在电子设备中的新兴应用。晶体管是当今微电子电路核心的一个非常重要的电子设备，因为它代表了所有日常电子产品的构建模块。最近，有机晶体管也在许多电子设备中首次亮相，并且可以被视为在一系列低成本和大批量应用中硅基设备的可能替代品。尽管最近的进展令人印象深刻，但有机晶体管在实际应用中的使用受到阻碍，因为目前无法满足最低要求（速度、功耗、成本）。拟议的工作使用完全不同的方法来解决这些具体问题。我们将研究能够传输电子和空穴的有机半导体的电子特性。这些就是所谓的双极性有机半导体。在这个奖学金期间，我们将发展和推进有机半导体中双极输运的知识，但我们也将开发和评估各种技术相关现象。我们将首先通过电学、结构、化学和光谱测量的结合来研究许多已知双极有机半导体中的双极输运。了解这些材料的关键电子特性对于开发改进或新型半导体至关重要，这些半导体随后将通过与各个化学小组的合作来合成。利用所获得的知识，我们将演示双极有机晶体管，并首先演示电压逆变器等基本逻辑电路。这项工作预计会出现发光晶体管和传感器等新应用。此外，了解有机材料中的双极输运具有基本的科学意义，预计将有利于包括化学和材料科学在内的其他科学学科。