Collaborative Research: Combinatorial solution processing of optical phase change materials

合作研究：光学相变材料的组合溶液加工

• 批准号: 2225968
• 负责人: Juejun Hu
• 金额: $ 32万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2225968&HistoricalAwards=false
• 关键词: Collaborative; Research; Combinatorial; solution; processing

Non-technical summaryPhase change materials (PCMs) are a class of compounds whose optical properties undergo dramatic changes upon micro-structural transformation. This unique property allows novel PCM-based reconfigurable or programmable optical systems to be created. Unlike conventional optics whose characteristics are fixed, the functions of such programmable optics can be dynamically configured on-the-fly to adapt to changing application needs. This project, supported by the Ceramics program in the Division of Materials Research, pioneers a transformative synthesis paradigm for expedited discovery of PCM alloys, specifically tailored for optical applications. Instead of relying on traditional costly vacuum systems to prepare PCMs, the program explores solution-based printing – similar to color printing of photos – as a scalable synthetic route of PCMs. The researchers also develop new methods to enable high-throughput screening and down-selection of PCMs to achieve material properties optimized for specific optical applications. Fundamental insights gained from this research have broad impacts on applications spanning energy-efficient data communications, active metamaterial, photonic memory, reflective display, analog optical computing, and beyond. In addition, the project also enables research opportunities for undergraduate students at the University of Central Florida and the Massachusetts Institute of Technology. Furthermore, the researchers develop a massive open online course (MOOC) dedicated to glass materials, thereby filling a critical gap when it comes to glass science education.Technical summaryPhase change materials (PCMs) are a class of compounds whose optical properties undergo dramatic changes upon micro-structural transformation. Discovery of new optical PCMs and characterization of their structural, optical, and phase transition properties, however, are increasingly becoming the bottleneck given the low throughput of traditional PCM synthesis and inability to reliably measure their properties in operando. With this project, supported by the Ceramics program in the Division of Materials Research, researchers at the University of Central Florida and the Massachusetts Institute of Technology develop a transformative synthesis and characterization paradigm for high-throughput discovery and characterization of multicomponent PCM alloys, specifically tailored for optical applications. Rather than relying on vacuum deposition, they harness combinatorial printing of PCM solutions to facilitate high-throughput, scalable synthesis of PCMs with custom chemistries and even complex multilayer structures. The PCMs are printed on integrated micro-heater arrays as a multifunctional characterization platform. It facilitates systematic investigation on the impact of post-deposition annealing and operando characterization of two critical attributes traditionally challenging to assess: temperature-dependent phase transition kinetics, and optical constants of thin film PCMs. Further coupled with a cohort of other characterization techniques commensurate with high-throughput screening, combinatorial solution processing presents a facile route for expedited discovery of new optical PCMs with broad impacts on energy-efficient data communications, active metamaterial, photonic memory, reflective display, analog optical computing, and beyond.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

非技术摘要变化材料（PCM）是一类化合物，其光学性质在微结构转换时会发生巨大变化。这种独特的属性允许创建基于新颖的基于PCM的可重构或可编程光学系统。与传统的特性固定的传统光学元件不同，可以动态配置此类可编程光学器件的功能以适应不断变化的应用程序需求。该项目在材料研究部的陶瓷计划的支持下，开创了一个转型综合范式，以加快发现PCM合金，专门针对光学应用量身定制。该程序不依靠传统的昂贵的真空系统来准备PCM，而是探索基于解决方案的打印（类似于照片的颜色打印）作为PCM的可扩展合成路线。研究人员还开发了新的方法，以实现PCM的高通量筛选和下调，以实现针对特定光学应用优化的材料特性。从这项研究中获得的基本见解对跨越节能数据通信，主动超材料，光子记忆，反射显示，模拟光学计算等的应用有广泛的影响。此外，该项目还为佛罗里达大学和马萨诸塞州理工学院的本科生提供了研究机会。此外，研究人员开发了一门专门针对玻璃材料的大规模开放在线课程（MOOC），从而填补了玻璃科学教育时的关键差距。技术摘要变化材料（PCM）是一类化合物，其光学性能在微结构转换上发生了巨大的变化。然而，鉴于传统的PCM合成的低通量和无法可靠地衡量其在Operando中的特性，因此发现新的光学PCM及其结构，光学和相变特性的表征越来越成为瓶颈。在材料研究部陶瓷计划的支持下，佛罗里达州中央大学的研究人员和马萨诸塞州理工学院的研究人员开发了一种用于高通量发现和表征多组分PCM PCM合金的特征的变革性合成和表征范式，该范例是针对光学应用量身定制的。他们不依赖真空沉积，而是利用PCM解决方案的组合打印来托管具有自定义化学的PCM的高通量，可扩展的合成，甚至复杂的多层结构。 PCM被打印在集成的微型备备阵列上，作为多功能表征平台。它促进了系统投资对两个关键属性传统上具有挑战性挑战的沉积后退火和操作表征的影响：依赖温度依赖的相位过渡动力学以及薄膜PCMS的光学常数。与高通量筛选相称的其他一系列其他特征技术的进一步结合，组合解决方案处理为加快发现新的光学PCM的途径带来了一条途径，对新的光学PCM迅速发现具有广泛影响的能源数据通信，对积极的超材料，积极的，光子的光子记忆，通过反映性的表现，对nive and nive and nive and nive nive and n s nive and.基金会的智力优点和更广泛的影响审查标准。