Molecular Layer Deposition (MLD) of CapturePhos - A Barrier for Flexible Electronics

CapturePhos 的分子层沉积 (MLD)——柔性电子产品的屏障

• 批准号: 543877-2019
• 负责人: Barry, Sean
• 金额: $ 11.28万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=699708
• 关键词: Molecular; Layer; Deposition; MLD; CapturePhos

This 2-year NSERC CRD project aims to expand the utility of a new class of phosphorus-based crosslinked polymers, the phosphane-ene polymer network "Capturephos". Making and assessing the properties of the bulk polymer has been relatively straightforward but understanding the potential of these materials as an ultrathin, uniform coating on a substrate is completely unknown and requires a focused investigation. The new application, which requires a new synthesis method, is to use the ability of the phosphine centres in the polymer to capture oxygen. This will make CapturPhos an effective encapsulation material for electronics (typically called the "electronic package"). Due to its robust crosslinked nature and its inherent flexibility, CapturPhos is an excellent barrier material for flexible electronics. To integrate fully, this polymer should be made from the gas phase and assemble at a targeted surface. The research team will embark on a campaign to (i) Prepare unique phosphines targeting low vapour pressure and maximum crosslinking in a resulting polymer film and the assessment of their suitability molecular layer deposition (MLD) processes. This will also include a survey of commercially primary phosphines; (ii) Utilize these phosphines with polyolefin reaction partners in an MLD process to deposit thin films (10-100 nm) of CapturePhos; (iii) Fully characterize the deposited films to assess thickness, uniformity and P content; (iv) to promote selective area deposition with surface treatments using vinyl carboxylic acids (for oxide surfaces) and vinyl carbenes (for metal surfaces) (v) Compare flat and selective-area patterned substrates for their overall O2 uptake and O2 transmission properties. The results from this work aim to develop a new approach to barrier coatings for next generation, flexible electronic devices (Organic light emitting diodes (OLED); Organic photovoltaics (OPV)). The proposed development will be carried out with the support of two global business units within the Solvay Group, Solvay Specialty Polymers and Solvay-Cytec (Cytec Canada).

这个为期 2 年的 NSERC CRD 项目旨在扩大新型磷基交联聚合物——磷烷-烯聚合物网络“Capturephos”的实用性。 本体聚合物的制造和性能评估相对简单，但了解这些材料作为基材上超薄、均匀涂层的潜力是完全未知的，需要进行重点研究。 新的应用需要新的合成方法，即利用聚合物中膦中心捕获氧的能力。这将使 CapturPhos 成为电子产品（通常称为“电子封装”）的有效封装材料。由于其强大的交联性质和固有的灵活性，CapturPhos 是柔性电子产品的优异阻隔材料。为了完全整合，这种聚合物应该由气相制成并组装在目标表面。 研究团队将开展一项活动，以 (i) 制备独特的膦，目标是在所得聚合物薄膜中实现低蒸气压和最大交联，并评估其适用性分子层沉积 (MLD) 工艺。 这还包括对商业初级膦的调查； (ii) 在 MLD 工艺中利用这些膦与聚烯烃反应伙伴来沉积 CapturePhos 薄膜（10-100 nm）； (iii) 全面表征沉积薄膜，以评估厚度、均匀性和磷含量； (iv) 通过使用乙烯基羧酸（用于氧化物表面）和乙烯基卡宾（用于金属表面）进行表面处理来促进选择性区域沉积 (v) 比较平面和选择性区域图案化基材的总体 O2 吸收和 O2 传输性能。 这项工作的结果旨在为下一代柔性电子设备（有机发光二极管（OLED）；有机光伏（OPV））开发一种新的阻隔涂层方法。 拟议的开发将在索尔维集团内的两个全球业务部门索尔维特种聚合物和索尔维-氰特（加拿大氰特）的支持下进行。