Hybrid Polymer-Nanocrystal Multilayered Heterostructures for Low-Cost Optoelectronics

用于低成本光电器件的混合聚合物-纳米晶体多层异质结构

• 批准号: 418096-2012
• 负责人: Cloutier, Sylvain
• 金额: $ 1.82万
• 依托单位: École de technologie supérieure
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=573502
• 关键词: Hybrid; Polymer; Nanocrystal; Multilayered; Heterostructures

My long-term objective is to build a world-class research program studying the fundamental interrelations between the synthesis & processing, structural and physical properties of hybrid nanoscale-engineered optoelectronic materials and devices. More specifically, this program will focus on polyfluorene-based systems combined with semiconductor nanocrystals to form novel hybrid multilayered heterostructures. In the long-term, this emerging class of hybrid polymer-based heterostructures has the potential of transforming the field of optoelectronics by providing low-cost and high-performance semiconductor-based nanocomposite materials and devices for key applications such as light sources, biomedical & lab-on-a-chip devices and solar-energy harvesting platforms. Compared to more common conjugated polymers, polyfluorenes tend to be easier to process and less sensitive to photo-chemical degradation, while still offering very decent optoelectronic properties. This combination of facile processing and durability makes polyfluorenes an ideal host system to provide a fundamental understanding of all polymer-based heterostructures and their limitations and to investigate how semiconductor quantum dots can be used to (1) add new functionality and (2) improve their performances. Yet, this hybrid integration of conjugated polymers and colloidal quantum dots also raises many important fundamental questions and crucial technical challenges before reaching viable low-cost hybrid optoelectronic devices with superior performances. For one, recent reports have shown the urgency of better understanding the consequences of the incorporation of semiconductor nanocrystals on the structural and optoelectronic properties of the polyfluorene host itself. In turn, this improved understanding of the guest-host interactions involved will allow us to design and fabricate better hybrid materials and optoelectronic device architectures.

我的长期目标是建立一个研究基本相互关系的世界一流的研究计划 在合成与加工，混合纳米级工程的结构和物理特性之间 光电材料和设备。更具体地说，该程序将重点放在基于多氟烯的系统上，并结合半导体纳米晶体形成新型混合多层异质结构。从长远来看，这种新兴的基于混合聚合物的异质结构具有通过为基于光源的纳米复合材料和诸如光源，生物医学和Lab-on-a-a-a-a-a-a-chip设备和省点台式的诸如诸如光源的纳米复合材料和设备来转换光电学领域。 与更常见的共轭聚合物相比，聚氟烯趋于更易于处理，并且对光化学降解较不敏感，同时仍然提供非常体面的光电特性。便捷处理和耐用性的这种组合使多氟烯烯成为理想的宿主系统，以提供对所有基于聚合物的异质结构及其局限性的基本理解，并研究如何使用半导体量子点（1）添加新功能，并且（2）改善了其性能。 然而，这种共轭聚合物和胶体量子点的杂种整合也提高了许多重要的 在达到具有出色性能的可行低成本混合光电设备之前，基本问题和至关重要的技术挑战。首先，最近的报告表明，更好地了解半导体纳米晶体对聚氟纳斯宿主本身的结构和光电特性的后果。反过来，对所涉及的客人互动的这种提高的了解将使我们能够设计和制造更好的混合材料和光电设备体系结构。