A Scalable Roll-to-Roll Printing Approach to Integrating Nanomaterials into High-Performance Devices

将纳米材料集成到高性能设备中的可扩展卷对卷打印方法

• 批准号: 1435521
• 负责人: Moonsub Shim
• 金额: $ 30万
• 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: 2014
• 资助国家: 美国
• 起止时间: 2014-09-01 至 2017-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1435521&HistoricalAwards=false
• 关键词: Scalable; Roll; Printing; Approach; Integrating

The emergence of a variety of high quality nanoscale materials in the last few decades have brought forth novel tunable properties with which new and improved technologies can be envisioned. Prospects include low-cost solar cells with unprecedented power conversion efficiencies to high-contrast biomedical imaging agents. While high-performance in laboratory scale devices incorporating nanoscale materials have been demonstrated, for many applications such as photovoltaics and displays, scalable manufacturing of high efficiency devices and device arrays is an absolute necessity. Currently, there are no clear pathways to achieving such practical large area, large arrays of complex, high performing structures. This award supports fundamental research to build the necessary foundation for developing a scalable roll-to-roll printing approach to assembling large arrays of nanoscale materials within functioning device architectures. Such an ability to integrate large arrays of nanoscale materials should enable manufacturing of a wide variety of electronic and optoelectronic devices from high-performance solar cells to energy efficient displays and lighting technologies. This multidisciplinary research involving materials, mechanical and manufacturing sciences as well as optoelectronics will provide research opportunities for students from underrepresented groups and promote/enhance engineering education.Heterogeneous integration of various 0D, 1D, and 2D nanomaterials such as quantum dots, carbon nanotubes, and graphene into vertically stacked multilayer structures allows for effective methods of utilizing the unique electrical and optical properties of these nanomaterials in a monolithic architecture. However, well-established fabrication processes such as photolithography are often incompatible with nanomaterials. Dry transfer printing using elastomeric stamps is a potential solution to this incompatibility problem but the nature of kinetically switchable adhesion of elastomers requires different peeling speeds between retrieval and printing steps. This requirement in turn introduces a grand challenge in employing elastomeric stamps to scalable roll-to-roll printing since retrieval and printing need to be carried out with the same roller, thus the same peeling speed. This research aims to explore shape memory polymers as stamp materials to replace kinetic control by stiffness control of dry adhesion and, furthermore, to enhance the adhesion force and switchability. The research team will examine the mechanics of shape memory polymers for transfer printing, investigate the fundamental properties of nanomaterials and interfaces assembled using shape memory polymer and apply the knowledge gained to assemble multilayer stacks consisting of nanomaterials and other relevant device components in a continuous roll-to-roll fashion.

在过去的几十年中，各种高质量的纳米级材料的出现引起了新的可调特性，可以将新的和改进的技术设想。前景包括具有前所未有的功率转化效率对高对比度生物医学成像剂的低成本太阳能电池。尽管已经证明了在纳米级材料的实验室规模设备中的高性能，但对于许多应用，例如光伏和显示器，可扩展的高效率设备和设备阵列的可扩展制造绝对是必需的。当前，没有明确的途径来实现这种实用的大面积，大量的复杂，高性能的结构。该奖项支持基本研究，以建立必要的基础，以开发可扩展的卷到滚动打印方法，以在功能设备架构中组装大量纳米级材料。这种整合大量纳米级材料的能力应使从高性能太阳能电池到节能显示和照明技术的各种电子和光电设备制造。 This multidisciplinary research involving materials, mechanical and manufacturing sciences as well as optoelectronics will provide research opportunities for students from underrepresented groups and promote/enhance engineering education.Heterogeneous integration of various 0D, 1D, and 2D nanomaterials such as quantum dots, carbon nanotubes, and graphene into vertically stacked multilayer structures allows for effective methods of utilizing the unique这些纳米材料在整体建筑中的电气和光学特性。然而，诸如光刻术之类的公认的制造过程通常与纳米材料不相容。使用弹性邮票的干燥传输打印是解决此不兼容问题的潜在解决方案，但是动力学上可切换的弹性体粘附的性质需要在检索和打印步骤之间进行不同的剥离速度。反过来，这项要求在使用弹性邮票上对可扩展的滚动打印中引入了巨大的挑战，因为需要使用相同的滚筒进行检索和打印，从而具有相同的剥离速度。这项研究旨在探索形状的记忆聚合物作为邮票材料，以替代干粘附力的刚度控制，并增强粘附力和切换性。研究团队将检查用于传输印刷的形状记忆聚合物的机制，研究使用形状记忆聚合物组装的纳米材料和接口的基本特性，并应用获得的知识来组装由纳米材料和其他相关设备组成的多层堆栈，以连续滚动到连续的滚动滚动式时尚。