Towards OCPLEDs: Organic Circularly Polarised Light Emitting Devices

迈向 OCPLED：有机圆偏振发光器件

• 批准号: EP/I014535/1
• 负责人: Matthew Fuchter
• 金额: $ 30.51万
• 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: 2010
• 资助国家: 英国
• 起止时间: 2010 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FI014535%2F1
• 关键词: Towards; OCPLEDs; Organic; Circularly; Polarised

Organic light emitting diodes (OLEDs) require an emissive electroluminescent layer of an organic semiconductor material located between two electrodes, where at least one of the electrodes is transparent. Such devices are revolutionising display technologies, with the production of flexible and fully transparent devices possible. Devices that emit circularly polarised electroluminescence (CPEL) should have vast translational potential in photonic technology, such as highly improved LCD backlighting, colour-image detection and stereoscopic displays, optical communication, and quantum computing, however to date the problem of directly generating CPEL has not been solved. The goal of this research is to use intrinsically chiral, conductive and luminescent small molecules as electroluminescent layer in OLEDs, in an attempt to demonstrate efficient CPEL. Such work would have significant impact on current knowledge, which could be exploited in a number of translational areas. Taking alternative LCD backlighting as one example of the exploitation of this work, current technologies rely on polarising filters that effectively cut out 75% of the light used in these displays. Combined with absorption by the colour filters and at device interfaces, only 4% of the light used is transmitted. The use of a polarised light source, coupled with tuneable colour components would remove this need, thus leading to significantly more energy efficient displays, with a dramatically lowered carbon footprint.

有机发光二极管（OLED）需要位于两个电极之间的有机半导体材料的发射电致发光层，其中至少一个电极是透明的。这些设备正在彻底改变显示技术，使生产柔性和完全透明的设备成为可能。发射圆偏振电致发光（CPEL）的器件在光子技术中应该具有巨大的转化潜力，例如高度改进的LCD背光、彩色图像检测和立体显示器、光通信和量子计算，然而迄今为止，直接产生CPEL的问题尚未解决。本研究的目的是利用本征手性、导电和发光的小分子材料作为有机电致发光器件的电致发光层，以实现高效的CPEL。这项工作将对现有知识产生重大影响，可在若干翻译领域加以利用。以替代LCD背光作为开发这项工作的一个例子，目前的技术依赖于偏振滤光片，有效地切断了这些显示器中使用的75%的光。加上滤色器和设备界面的吸收，只有4%的光被透射。使用偏振光源，加上可调的颜色组件将消除这种需要，从而导致显着更节能的显示器，具有显着降低的碳足迹。

项目成果

Induction of circularly polarized electroluminescence from an achiral light-emitting polymer via a chiral small-molecule dopant.

• DOI: 10.1002/adma.201204961
• 发表时间: 2013-05-14
• 期刊: ADVANCED MATERIALS
• 影响因子: 29.4
• 作者: Yang, Ying;da Costa, Rosenildo Correa;Smilgies, Detlef-M.;Campbell, Alasdair J.;Fuchter, Matthew J.
• 通讯作者: Fuchter, Matthew J.

Emergent Properties of an Organic Semiconductor Driven by its Molecular Chirality.

• DOI: 10.1021/acsnano.7b03540
• 发表时间: 2017-07
• 期刊: ACS nano
• 影响因子: 17.1
• 作者: Ying Yang;Beth Rice;Xingyuan Shi;Jochen R. Brandt;Rosenildo Correa da Costa;G. Hedley;Detlef-Matthias Smilgies;J. Frost;I. Samuel;A. Otero-de-la-Roza;E. Johnson;K. Jelfs;J. Nelson;A. Campbell;M. Fuchter