GOALI: 3D Nanomanufacturing with Rubber Stamps and Conformable Phase Masks

GOALI：使用橡胶印章和适形相位掩模进行 3D 纳米制造

• 批准号: 0355532
• 负责人: John Rogers
• 金额: $ 38万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0355532&HistoricalAwards=false
• 关键词: GOALI; 3D; Nanomanufacturing; Rubber; Stamps

This proposed research will directly address a critical need for nanoscience and technology: broadly useful techniques that have the ability to fabricate complex, well defined three dimensional (3D) nanostructures. Two new methods are proposed here. The first uses single or multilayer transfer of thin solid 'ink' coatings from high resolution rubber stamps onto substrates. The second uses these stamps as conformable phase masks for proximity field nanopatterning of thin layers of transparent photopolymers. Although both techniques use the same pattern transfer elements, they rely on completely different physical principles, and they provide complementary patterning capabilities. The operational simplicity of the techniques, their ability to pattern large areas quickly, and the flexibility in the geometry of structures that can be formed with them suggest general utility for 3D nanomanufacturing. The scientific thrusts of the program involve: 1) Surface chemistries that can be used to transfer thin solid 'inks' from high resolution rubber stamps to target substrates, and materials for these inks. The aspects that will be investigated, such as surface chemical structure and bonding density required for transfer and physical toughness in ultrathin multilayer assemblies, will enable multilayer and 3D transfer printing. These studies will also provide insights into the molecular-level aspects of adhesion and fracture. 2) Near, proximity and far field optics of high resolution conformable phase masks. Modeling and experimental work will explore the ability to manipulate the 3D flow of light by using masking elements that modulate the optical phase. In addition to their central role in the proximity field nanopatterning approach, these studies will have relevance to conventional photomask design and near field optical imaging and detection. 3) Structure-property relationships in elastomeric polymers that provide high modulus, high physical toughness and high index of refraction. This work will yield materials for robust, reliable stamps and masks for the 3D nanomanufacturing techniques described above. It will also establish general strategies for polymer modification based on (i) bimodal segments, (ii) blends with highly crosslinked network resins domains and (iii) phase separated nanoparticles.The science and methods that emerge from the research will be disseminated widely though conference talks, papers and materials posted on a central website, where they can be accessed and downloaded by any interested parties. Furthermore, the GOALI partner, Dow Corning Corporation, will provide expertise in new materials and processing methods, thus ensuring broad technology transfer of successful efforts and excellent educational and outreach opportunities for the students. A hands-on summer laboratory course on nanofabrication will be developed to introduce this important area to students from a wide range of disciplines. It will also expose these fields to underrepresented undergraduate students from Clark Atlanta University, an historically black institution, who will actively participate in this summer course and the research.

这项提出的研究将直接解决对纳米科学和技术的关键需求：具有构成复杂，定义良好的三维（3D）纳米结构的能力的广泛有用的技术。这里提出了两种新方法。第一个使用从高分辨率橡皮图邮戳到基板上的固体“墨水”涂料的单层或多层转移。第二种将这些邮票用作透明光聚合物薄层的接近场纳米图案作为构象相掩模。尽管两种技术都使用相同的模式转移元素，但它们依赖于完全不同的物理原理，并且提供了互补的图案功能。这些技术的操作简单性，它们迅速对大面积进行模拟的能力以及可以与它们形成的结构的几何形状的灵活性表明了3D纳米制造的通用效用。 该程序的科学推力涉及：1）可用于从高分辨率橡皮纸转移到靶标底物的表面化学物质，以及这些墨水的材料。将要研究的方面，例如超薄多层组件中传递和物理韧性所需的表面化学结构和键合密度，将实现多层和3D传输打印。这些研究还将提供有关粘附和断裂分子水平方面的见解。 2）附近，高分辨率符合相位掩模的接近度和远场光学元件。建模和实验工作将探索通过使用调节光相的屏蔽元素来操纵光流的能力。除了它们在接近场纳米图案方法中的核心作用外，这些研究还将与常规的照片设计和近场光学成像和检测有关。 3）在弹性体聚合物中的结构特性关系，可提供高模量，高物理韧性和高折射率。这项工作将为上述3D纳米制造技术提供可靠，可靠的邮票和口罩的材料。它还将基于（i）双峰片段，（ii）与高度交联的网络树脂域和（iii）相分离的纳米粒子建立一般策略。在中央网站上发布的会谈，论文和材料，在那里可以由任何有关方面访问和下载。此外，守门员合作伙伴陶•康宁公司（Dow Corning Corporation）将提供新材料和加工方法的专业知识，从而确保成功的努力的广泛技术转移以及为学生提供出色的教育和外展机会。 将开发有关纳米制作的动手暑期实验室课程，以向来自广泛学科的学生介绍这一重要领域。它还将把这些领域暴露于一家历史悠久的黑人机构克拉克·亚特兰大大学（Clark Atlanta University）的代表性不足的本科生，他们将积极参加今年夏季课程和研究。