Multilayer photopatterned dendrimer LEDs for colour displays
用于彩色显示器的多层光图案化树枝状聚合物 LED
基本信息
- 批准号:EP/F032099/1
- 负责人:
- 金额:$ 52.79万
- 依托单位:
- 依托单位国家:英国
- 项目类别:Research Grant
- 财政年份:2008
- 资助国家:英国
- 起止时间:2008 至 无数据
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The purpose of this proposal is to develop new light-emitting materials for displays, based on recent progress in highly branched molecules called conjugated dendrimers. Conjugated dendrimers are an exciting class of materials that combine the advantages of molecular and polymeric materials and following the work proposed here could be used to make low cost colour displays. They have well defined structures akin to molecular materials, but with the key advantage of having the solution processibility normally associated with polymers. Dendrimers consist of a core, dendrons, and surface groups and the choice of each of these components gives enormous control for optimising the material's opto-electronic properties. We have discovered that when small phosphorescent iridium complexes are encapsulated into a large branched molecule (dendrimer) high efficiencies can be obtained in much simpler device structures than those used for small phosphorescent molecules. We have demonstrated red green and blue dendrimer light-emitting diodes. However, all these devices have been monochrome and the soluble nature of the layers has meant that we have only been able to use two layer devices. We now wish to overcome these limitations by developing methods for photopatterning dendrimers to form a full colour pixellated display. The dendrimers will be patterned in the solid state by incorporating surface groups capable of being cross-linked. This will allow precise patterning of colour displays. In addition these cross-linked materials will enable multilayer devices to be made from solution, giving improvements in efficiency, and providing new ways of studying device physics.
这项提议的目的是开发用于显示器的新的发光材料,基于被称为共轭树枝状大分子的高支化分子的最新进展。共轭树枝状大分子是一类令人兴奋的材料,它结合了分子材料和聚合物材料的优点,根据这里提出的工作,可以用来制造低成本的彩色显示器。它们具有类似于分子材料的定义良好的结构,但关键优势是具有通常与聚合物相关的溶液加工性。树枝状大分子由核心、树枝和表面基团组成,选择这些组件中的每一个都可以极大地控制优化材料的光电性能。我们已经发现,当小的磷光Ir络合物被包裹到一个大的支化分子(树枝状大分子)中时,可以获得比用于小磷光分子的器件结构简单得多的效率。我们已经展示了红色、绿色和蓝色树枝状大分子发光二极管。然而,所有这些器件都是单色的,层的溶解性质意味着我们只能使用两层器件。现在,我们希望通过开发光穿透树枝状大分子的方法来克服这些限制,以形成全色像素化显示器。通过加入能够交联的表面基团,树枝状大分子将在固态中被图案化。这将允许彩色显示器的精确图案化。此外,这些交联材料将使多层器件能够从溶液中制造出来,从而提高效率,并为研究器件物理提供新的方法。
项目成果
期刊论文数量(8)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Carbazole/iridium dendrimer side-chain phosphorescent copolymers for efficient light emitting devices
- DOI:10.1039/c1nj20493a
- 发表时间:2012-01
- 期刊:
- 影响因子:3.3
- 作者:J. W. Levell;Wenyong Lai;Robert J. Borthwick;P. Burn;S. Lo;I. Samuel
- 通讯作者:J. W. Levell;Wenyong Lai;Robert J. Borthwick;P. Burn;S. Lo;I. Samuel
Charge Transport in a Highly Phosphorescent Iridium(III) Complex-Cored Dendrimer with Double Dendrons
- DOI:10.1002/adfm.201101727
- 发表时间:2012-01-11
- 期刊:
- 影响因子:19
- 作者:Gambino, Salvatore;Lo, Shih-Chun;Samuel, Ifor D. W.
- 通讯作者:Samuel, Ifor D. W.
Poly(dendrimers) with Phosphorescent Iridium(III) Complex-Based Side Chains Prepared via Ring-Opening Metathesis Polymerization
通过开环复分解聚合制备具有磷光铱(III)配合物侧链的聚(树枝状聚合物)
- DOI:10.1021/ma300306d
- 发表时间:2012-04-10
- 期刊:
- 影响因子:5.5
- 作者:Lai, Wen-Yong;Balfour, Michael N.;Samuel, Ifor D. W.
- 通讯作者:Samuel, Ifor D. W.
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Ifor Samuel其他文献
Electrifying quantum dots for lasers
用于激光器的带电量子点
- DOI:
10.1038/nmat5040 - 发表时间:
2017-11-20 - 期刊:
- 影响因子:38.500
- 作者:
Ifor Samuel - 通讯作者:
Ifor Samuel
Ifor Samuel的其他文献
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{{ truncateString('Ifor Samuel', 18)}}的其他基金
Self-Illuminating Holograms for Human-Computer Interaction
用于人机交互的自发光全息图
- 批准号:
EP/X018067/1 - 财政年份:2023
- 资助金额:
$ 52.79万 - 项目类别:
Research Grant
Novel Polymers of Intrinsic Microporosity for use as photonic materials
用作光子材料的新型固有微孔聚合物
- 批准号:
EP/V027840/1 - 财政年份:2022
- 资助金额:
$ 52.79万 - 项目类别:
Research Grant
ESPRC-JSPS Core-to-Core Grant Application
ESPRC-JSPS 核心到核心拨款申请
- 批准号:
EP/R035164/1 - 财政年份:2018
- 资助金额:
$ 52.79万 - 项目类别:
Research Grant
Self-assembled organic photovoltaic materials
自组装有机光伏材料
- 批准号:
EP/L012294/1 - 财政年份:2014
- 资助金额:
$ 52.79万 - 项目类别:
Research Grant
The Influence of Excited State Physics in Conjugated Polymer Devices
激发态物理对共轭聚合物器件的影响
- 批准号:
EP/J009016/1 - 财政年份:2012
- 资助金额:
$ 52.79万 - 项目类别:
Research Grant
Synergistic tailoring of flavins and quantum dots for solar cell applications
用于太阳能电池应用的黄素和量子点的协同定制
- 批准号:
EP/I00243X/1 - 财政年份:2011
- 资助金额:
$ 52.79万 - 项目类别:
Research Grant
Ageing of printable polymer solar cells
可印刷聚合物太阳能电池的老化
- 批准号:
EP/I013288/1 - 财政年份:2011
- 资助金额:
$ 52.79万 - 项目类别:
Research Grant
Implantable Optoelectronic Devices for Neurophysiology
用于神经生理学的植入式光电设备
- 批准号:
G0802573/1 - 财政年份:2010
- 资助金额:
$ 52.79万 - 项目类别:
Research Grant
Hybrid organic semiconductor/gallium nitride/CMOS smart pixel arrays
混合有机半导体/氮化镓/CMOS智能像素阵列
- 批准号:
EP/F059922/1 - 财政年份:2008
- 资助金额:
$ 52.79万 - 项目类别:
Research Grant
The Physics of Polymer Photonic Devices: Experiment and Theory
聚合物光子器件物理学:实验与理论
- 批准号:
EP/E062636/1 - 财政年份:2008
- 资助金额:
$ 52.79万 - 项目类别:
Research Grant
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