Scalable Nanomanufacturing of Reconfigurable Photonic Crystals

可重构光子晶体的可扩展纳米制造

• 批准号: 1562861
• 负责人: Peng Jiang
• 金额: $ 25万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-06-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1562861&HistoricalAwards=false
• 关键词: Scalable; Nanomanufacturing; Reconfigurable; Photonic; Crystals

The microelectronics revolution sparked by the invention and the very-large-scale integration of transistors has affected almost every aspect of our daily lives. As the 50-year-old Moore's law is approaching its limits, scientists are now turning to light as the information carrier. Unfortunately, our ability to control light in nanoscopic volumes is in many ways in its infancy, compared with how we can manipulate electrons. A new class of optical materials known as photonic crystals may hold the key to continued progress towards all-optical integrated circuits. However, traditional nanomanufacturing technologies for producing photonic crystals with three-dimensionally ordered nanostructures suffer from low throughput, small sample areas, and high cost. By integrating a simple, fast, and inexpensive colloidal self-assembly methodology with a new type of shape memory polymer, this project will explore a novel scalable nanomanufacturing approach for wafer-scale production of photonic crystals with reconfigurable optical properties. This interdisciplinary research will be closely integrated into curriculum development, new demonstration module design, and training of underrepresented high school and undergraduate students through a few successful programs at the university. Although various colloidal self-assembly technologies have been developed, most of these bottom-up approaches are only favorable for low volume, laboratory-scale production of photonic crystals. Moreover, self-assembled photonic crystals with fixed microstructures are only appropriate for fabricating passive nanooptical devices. Smart shape memory polymers that can memorize and recover their permanent shapes from structurally stable temporary sates are promising for developing active photonic crystal devices. Unfortunately, most of the existing shape memory polymers are thermoresponsive, and they suffer from heat-demanding shape memory cycles. The research team aims to conduct simultaneous experimental and theoretical investigations to address the key scientific and engineering barriers faced by the current colloidal self-assembly and shape memory polymer technologies. In-situ nanoscopic mechanical and mechanochromic tests, along with multiphysics mechanical finite element analysis simulations will facilitate the basic understanding of the unusual shape recovery mechanisms of the new type of shape memory polymer that enables unconventional all-room-temperature shape memory cycles. The stimuli-responsive microstructure-optical property relationship of the self-assembled photonic crystals will be elucidated by optical characterization and finite element optical simulations. Large-area macroporous polymer photonic crystals with optimal crystal structures and multiple memorizable optical states will be fabricated by the scalable bottom-up nanomanufacturing technology.

发明引发的微电子革命和晶体管的大规模整合都影响了我们日常生活的各个方面。随着50岁的摩尔法律正在接近其限制，科学家现在正在将其视为信息载体。不幸的是，与我们可以操纵电子的方式相比，我们在许多方面都在许多方面控制光的能力。一类新的光子晶体的新型光子材料可能是持续进展的全光整合电路的关键。但是，用于生产具有三维有序纳米结构的光子晶体的传统纳米制造技术遭受低吞吐量，小样本区域和高成本的影响。通过将简单，快速且廉价的胶体自组装方法与新型形状内存聚合物相结合，该项目将探索一种新型的可扩展纳米制造方法，用于晶状体生产具有可重新配置的光学特性的光子晶体。这项跨学科研究将通过大学的一些成功课程紧密整合到课程开发，新的演示模块设计以及代表性不足的高中和本科生的培训中。 尽管已经开发了各种胶体自组装技术，但这些自下而上的方法中的大多数仅对低体积，实验室规模的光子晶体的产生有利。此外，具有固定微观结构的自组装光子晶体仅适用于制造被动纳米式设备。智能形状的记忆聚合物可以记住并从结构稳定的临时组合中记住并恢复其永久形状，这对于开发活跃的光子晶体设备有希望。不幸的是，大多数现有形状的记忆聚合物都是热重响的，并且它们具有热量形状的记忆周期。研究小组旨在进行同时实验和理论研究，以解决当前胶体自组装和塑造记忆聚合物技术所面临的关键科学和工程障碍。原位纳米机械和机械色素测试以及多物理学机械有限元分析模拟将有助于对新型形状存储聚合物的异常形状恢复机制的基本理解，从而实现非常常规的全室友 - 周期性形状的形状记忆周期。自组装光子晶体的刺激反应性微结构 - 光学性质关系将通过光学表征和有限元元件光学模拟来阐明。具有最佳晶体结构和多个可记住的光学状态的大面积大型聚合物光子晶体将通过可扩展的自下而上的纳米制造技术制造。