Collaborative Research: Photolytic CVD Processes for Thermally Sensitive Substrates

合作研究：热敏基材的光解 CVD 工艺

• 批准号: 1609081
• 负责人: Amy Walker
• 金额: $ 28.26万
• 依托单位: University of Texas at Dallas
• 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: 2016-09-01 至 2021-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1609081&HistoricalAwards=false
• 关键词: Collaborative; Research; Photolytic; CVD; Processes

Non-Technical Summary:Next-generation electronic devices using plastics and other flexible materials have the potential for revolutionary societal benefits in medicine, sustainable energy and information technology. Development of reliable, widely applicable methods to apply metals to heat-sensitive materials such as organic and polymer thin films will be an important step in the production of these devices. This project is developing methods to use light as an energy source to drive placement of metal contacts on heat-sensitive materials. Because the metal can be applied in patterns, the method could eventually be used to print circuits on flexible electronics. Participation in this research provides graduate students with technical and collaborative skills valuable in either academic or industrial careers. Undergraduate researchers contribute significantly to the proposed work, which encourages them to pursue graduate education in the physical sciences and engineering. To communicate the excitement of science to the general public, participants in the project are involved in public outreach on chemistry and chemistry-based nanotechnology.Technical Summary:This project is developing photolytic chemical vapor deposition (CVD) processes for the selective deposition of metals onto thermally sensitive materials, such as organic thin films. The reliable formation of stable metallic contacts to organic thin films is critical to many technologies from energy harvesting to sensing to organic/molecular electronics. The development of photoassisted low temperature CVD will advance the state-of-the-art in organic electronics by enabling the integration of molecular assemblies into complex devices. In this collaborative project, design and synthesis of ruthenium, platinum and gold complexes as photosensitive CVD precursors is followed by a screening process involving identification of the primary photoprocess, determination of the quantum yield for ligand loss, elucidation of thermal decomposition steps, and modeling reactivity with functional groups on the substrate surface. Promising precursor complexes are subjected to photolytic chemical vapor deposition experiments with self-assembled monolayers (SAMs) as model substrate systems. SAMs are used as the substrates because they have highly organized structures with a uniform density of terminal organic functional groups that will allow the quantitative investigation of the precursor-molecule interactions. Further, SAMs can be easily patterned to produce multifunctional surfaces, which are used to determine the selectivity of the deposition reactions.

非技术摘要：使用塑料和其他柔性材料的下一代电子设备具有在医学、可持续能源和信息技术领域带来革命性社会效益的潜力。开发可靠、广泛适用的方法将金属应用于有机和聚合物薄膜等热敏材料将是这些器件生产中的重要一步。 该项目正在开发使用光作为能源来驱动热敏材料上金属触点放置的方法。 由于金属可以形成图案，因此该方法最终可用于在柔性电子产品上印刷电路。参与这项研究可以为研究生提供在学术或工业职业生涯中有价值的技术和协作技能。 本科生研究人员对拟议的工作做出了重大贡献，这鼓励他们继续攻读物理科学和工程领域的研究生教育。 为了向公众传达科学的乐趣，该项目的参与者参与了化学和基于化学的纳米技术的公众宣传。技术摘要：该项目正在开发光解化学气相沉积 (CVD) 工艺，用于将金属选择性沉积到热敏材料，例如有机薄膜。与有机薄膜可靠地形成稳定的金属接触对于从能量收集到传感到有机/分子电子学的许多技术至关重要。 光辅助低温 CVD 的发展将能够将分子组装体集成到复杂的器件中，从而推动有机电子学的发展。 在这个合作项目中，设计和合成钌、铂和金配合物作为光敏 CVD 前体，然后进行筛选过程，包括识别初级光过程、确定配体损失的量子产率、阐明热分解步骤和建模反应性基材表面带有官能团。 以自组装单层 (SAM) 作为模型基底系统，对有前景的前体配合物进行光解化学气相沉积实验。 SAM 被用作底物，因为它们具有高度组织的结构和均匀密度的末端有机官能团，这将允许对前体分子相互作用进行定量研究。此外，SAM 可以轻松地进行图案化以产生多功能表面，用于确定沉积反应的选择性。