High-performance printable hybrid light-emitting device architectures

高性能可印刷混合发光器件架构*愿景：这项发现基金的长期目标是开发一项国际公认的研究计划，调查独特的可印刷混合光电子架构的合成与加工、结构和物理特性之间的基本相互关系，以及它们在生产高性能低成本发光二极管方面的潜在用途。*原理：探索新的制造模式对加拿大经济至关重要，可印刷光电子是这些快速新兴行业之一。近年来，开发新的、更好的低成本和可打印的光电子平台，用于太阳能收集、照明和显示以及传感应用，是一种非同寻常的推动。基于我们过去5年的研究势头，我们计划利用我们为航空航天行业开发的独特的电纺和协同喷射专业知识，探索新型可打印混合发光器件架构中的基本结构-性能相互关系。事实上，我们的初步结果表明，控制良好的电纺(以生产纳米纤维)和共喷射(以生产微滴)是强大的低成本沉积技术，非常适合于使用各种基于溶液的材料来生产独特的薄膜结构。这些沉积技术也是结合看似不相容的材料，或在生产混合薄膜异质结构时解决溶剂兼容性问题的理想选择。*同时，令人兴奋的新的可打印材料系统在过去5年中也获得了巨大的发展势头，包括用于生产高质量纳米工程金属氧化物材料的新的溶胶-凝胶前体、更好的量子点和量子点固体以及甲基铵卤化铅(或MalH)钙钛矿。作为该计划的一部分，我们计划利用我们广泛的电纺/协同喷射能力，结合我们成熟的光电材料和器件专业知识，探索颠覆性的低成本混合LED架构。*目标：在过去5年取得的可喜成果的基础上，我们希望在低成本可印刷LED领域探索两(2)个几乎未知的领域，以实现对发射特性的无与伦比的控制，并在混合可印刷LED领域达到前所未有的器件性能。在接下来的五年里，我们将专注于探索(1)带有和不带有量子点的混合聚合物微滴的组合共喷射，以及(2)嵌入钙钛矿基质中的碳纳米管和金属氧化物(例如二氧化钛)纳米纤维网络，以实现所需的控制，并导致显著改进的器件，这些器件可能会改变可印刷LED和其他用于光收集和传感应用的低成本器件领域。*****

High-performance printable hybrid light-emitting device architectures*******Vision: The long-term goal of this Discovery Grant is to develop an internationally-recognized research program investigating the fundamental interrelations between the synthesis & processing, structural and physical properties of unique printable hybrid optoelectronic architectures and their potential use to produce high-performance low-cost light-emitting diodes.*******Rationale: Exploring new manufacturing paradigms is essential for the Canadian economy, and printable optoelectronics is one of these rapidly-emerging sectors. In recent years, there was an extraordinary push to develop new and better low-cost and printable optoelectronic platforms for solar-energy harvesting, lighting & displays and sensing applications. Building on our research momentum from the last 5 years, we are proposing to exploit a unique electrospinning and co-jetting expertise we have developed for the aerospace industry to explore the fundamental structure-property interrelations in novel printable hybrid light-emitting device architectures. Indeed, our preliminary results show that well-controlled electrospinning (to produce nanofibers) and co-jetting (to produce microdroplets) are powerful low-cost deposition techniques, which are well-suited to produce unique film architectures using a wide range of solution-based materials. These deposition techniques are also ideal to combine seemingly incompatible materials, or to address solvent compatibility issues when producing hybrid thin-film heterostructures.*******Meanwhile, exciting new printable material systems have also gained tremendous momentum in the last 5 years including new sol-gel precursors to produce high-quality nano-engineered metal-oxide materials, better quantum dots & quantum dot solids and methylammonium lead halide (or MALH) perovskites. As part of this program, we are proposing to take advantage of our extensive electrospinning/co-jetting capability combined with our established optoelectronic materials & device expertise to explore disruptive low-cost hybrid LED architectures. ******Objectives: Building on promising results from the last 5 years, we wish to explore two (2) virtually unknown territories in the field of low-cost printable LEDs to achieve unparalleled control on the emission properties and reach unprecedented device performance in hybrid printable LEDs. In the next five-year, we will focus on exploring (1) combinatorial co-jetting of hybrid polymer microdroplets with and without quantum dots and (2) carbon nanotube & metal-oxide (e.g. TiO2) nanofiber networks embedded within a perovskite matrix to achieve the desired control and lead to significantly-improved devices that can potentially transform the field of printable LEDs and other low-cost devices for light-harvesting and sensing applications. *****