High-performance printable hybrid light-emitting device architectures

高性能可打印混合发光器件架构*******愿景：这项发现基金的长期目标是开发一个国际公认的研究项目，研究独特的可打印混合光电架构的合成和加工、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。*******理由：探索新的制造模式对加拿大经济至关重要，而可印刷光电子是这些快速崛起的行业之一。近年来，人们大力推动开发新的、更好的低成本、可打印的光电平台，用于太阳能收集、照明和显示以及传感应用。基于我们过去5年的研究势头，我们建议利用我们为航空航天工业开发的独特的静电纺丝和共同喷射专业知识，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，控制良好的静电纺丝（生产纳米纤维）和共喷射（生产微滴）是强大的低成本沉积技术，非常适合使用广泛的溶液基材料生产独特的薄膜结构。这些沉积技术也非常适合于组合看似不相容的材料，或者在生产杂化薄膜异质结构时解决溶剂相容性问题。*******与此同时，令人兴奋的新型可打印材料系统在过去5年中也获得了巨大的动力，包括新的溶胶-凝胶前体，用于生产高质量的纳米工程金属氧化物材料，更好的量子点和量子点固体以及甲基卤化铅铵（或MALH）钙钛矿。作为该计划的一部分，我们建议利用我们广泛的静电纺丝/共喷射能力，结合我们现有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年有希望的结果的基础上，我们希望在低成本可打印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，并在混合可打印led中达到前所未有的设备性能。在接下来的五年里，我们将专注于探索(1)混合聚合物微滴与量子点和不含量子点的组合共喷射；(2)碳纳米管和金属氧化物（例如TiO2）纳米纤维网络嵌入钙钛矿基质中，以实现所需的控制，并导致显着改进的器件，这些器件可能会改变可打印led和其他低成本器件的领域，用于光采集和传感应用。* * * * *

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. *****