Manufacturing Organic-Inorganic Nanoparticle Composites with Nanoscale Precision via Directed Self-Assembly

通过定向自组装制造纳米级精度的有机-无机纳米粒子复合材料

• 批准号: EP/V055127/1
• 负责人: Akshay Rao
• 金额: $ 176.52万
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FV055127%2F1
• 关键词: Manufacturing; Organic; Inorganic; Nanoparticle; Composites

New optoelectronically and photonically active materials - such as organic semiconductors and nanoparticles - are bringing to market new technologies and products such as organic light-emitting diodes (OLEDs) and new phosphors (as used in QD TVs and LED white lighting). Our understanding of the fundamental properties of these materials as well as the rate of design of new materials is accelerating. Of particular interest is a new generation of systems combining organic semiconductors with inorganic nanoparticles. These hybrid blends or nanocomposites hold great promise as a platform technology for high-efficiency low-cost solar energy harvesting devices, photodetectors and novel LEDs for displays, communications and chemical diagnostics.A scalable manufacturing process for these materials will rely on solution processing of an ink comprising the organic semiconductor, the nanoparticles and a suitable solvent to produce a functional film or coating. However, the components of these organic-nanoparticle blends have a strong tendency to aggregate and phase separate during solution processing, due to a mismatch of their size, shape and surface energies1. This severely compromises device performance and to date has ruled out the manufacture of these systems via large-area-compatible solution manufacturing techniques such as bar-coating, slot-die coating or inkjet printing. Our proposed methodology will overcome these problems, demonstrating routes by which the two active components spontaneously self-assemble during deposition and subsequent solvent evaporation to yield a nanocomposite with a precise morphology and structure over the hierarchy of length scales described above. Thus, our proposal directly tackles the challenge of achieving the precision manufacture at scale of functional nanocomposites. We seek to develop new molecular engineering methodologies providing a toolkit of manufacturing approaches enabling precise control over a hierarchy of length scales. This will create manufacturing routes a new generation of optoelectronically and photonically active coatings and films based on organic-nanoparticle blends, accelerating the translation of fast-moving developments in the physics and chemistry of these hybrid materials into economic benefit for the UK and benefits to society world-wide.

新的光电和光子活性材料（例如有机半导体和纳米颗粒）正在将新技术和产品（例如有机发光二极管（OLEDS）（OLEDS）和新磷酸盐（如QD TVS和LED白光照射））上市。我们对这些材料的基本特性以及新材料设计速率的理解正在加速。特别有趣的是将有机半导体与无机纳米颗粒相结合的新一代系统。这些混合混合物或纳米复合材料作为高效高效率的低成本太阳能收集设备，光电探测器和用于显示，通信和化学诊断的新型LED的平台技术。但是，由于它们的大小，形状和表面能的不匹配，这些有机纳米颗粒混合物的组件在溶液加工过程中的聚集和相分离的趋势很强。这严重损害了设备性能，迄今为止，通过大区域兼容的解决方案制造技术（例如钢筋涂层，插槽涂层或喷墨打印）排除了这些系统的制造。我们提出的方法将克服这些问题，证明这两个活动成分在沉积过程中自发自发组装和随后的溶剂蒸发，以产生上述长度尺度层次的精确形态和结构的纳米复合材料。因此，我们的提案直接应对以功能性纳米复合材料大规模实现精确制造的挑战。我们试图开发新的分子工程方法，提供制造方法工具包，从而可以精确控制长度尺度的层次结构。这将创建基于有机纳米颗粒混合物的新一代光电和光子活性涂料和膜，加速了这些混合材料在物理和化学中快速发展的发展转化为英国经济利益的经济利益，以及对全球社会的利益。

项目成果

Soluble Diphenylhexatriene Dimers for Intramolecular Singlet Fission with High Triplet Energy.

• DOI: 10.1021/jacs.2c12060
• 发表时间: 2023-02-01
• 期刊: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
• 影响因子: 15
• 作者: Millington, Oliver;Montanaro, Stephanie;Leventis, Anastasia;Sharma, Ashish;Dowland, Simon A.;Sawhney, Nipun;Fallon, Kealan J.;Zeng, Weixuan;Congrave, Daniel G.;Musser, Andrew J.;Rao, Akshay;Bronstein, Hugo
• 通讯作者: Bronstein, Hugo

Building Blocks and COFs Formed in Concert -Three-Component Synthesis of Pyrene-Fused Azaacene Covalent Organic Framework in the Bulk and as Films

协同形成的构件和 COF - 芘稠合氮杂苯共价有机框架的本体和薄膜的三组分合成

• DOI: 10.1002/anie.202302872
• 发表时间: 2023
• 期刊: Angewandte Chemie International Edition
• 作者: Frey L

The Self-Assembly of Organic Semiconductor : Quantum Dot Blend Films for Solar Energy Harvesting

有机半导体的自组装：用于太阳能收集的量子点共混薄膜

• DOI: 10.29363/nanoge.matsus.2023.309
• 发表时间: 2023
• 作者: Kilbride R

Triplet transfer from PbS quantum dots to tetracene ligands: is faster always better?

• DOI: 10.1039/d2tc03470k
• 发表时间: 2022-11-10
• 期刊: Journal of materials chemistry. C

Quantitative Singlet Fission in Solution-Processable Dithienohexatrienes.

可溶液加工的二噻吩并六三烯中的定量单线态裂变。

• DOI: 10.17863/cam.92325
• 发表时间: 2022
• 作者: Fallon K