Developing high performance, low cost, transparent electrodes for large area touchscreens

开发用于大面积触摸屏的高性能、低成本透明电极

• 批准号: 538308-2018
• 负责人: Bhiladvala, Rustom
• 金额: $ 7.47万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=720485
• 关键词: Developing; performance; low; cost; transparent

Small touchscreens on smartphones are commonplace. Extending touch screen capability to blackboard-sized screens is useful for discussions allowing input from multiple presenters. This capability can enhance global meetings enabled by internet links, for the use of education, industry and government. Flexible screens are sought in healthcare and automotive industries. Companies and investors now see the area as a competitive international market space. We aim to develop new materials, designs and cost-competitive manufacturing methods scalable for mass production of electronic blackboards, sensitive to finger or stylus touch. Transparent electrodes (TEs) are a required component, not only for touch screens, but also for solar cells and smart windows, used for improved energy management in buildings. Indium tin oxide (ITO) is the best-known TE material with its unique of high conductivity and transparency, but its price volatility, high material and manufacturing cost for large panels, as well as brittle behavior, motivate work towards alternate materials. Our industry partner is engaged in developing and bringing large touch screen devices competitively to market. In our work together, using support from NSERC through two small six-month engagement grants, we have demonstrated an alternative manufacturing method for TEs using electric-field-directed chaining of metallic nanowires on inexpensive glass and flexible substrates. This method provides the required balance of transparency and conductivity at reduced cost. We have successfully demonstrated a scale-up in electrode area by a factor of 100 through this preliminary work. This proposal seeks funding for a research program to design and synthesize new materials for TEs with low electrical resistance, high transparency and long-lasting properties. We will create methods to extend our technique to cost-competitive mass-production of TEs over metre-scale areas. We will propose and test new configurations to enable enhanced touch sensitivity.

智能手机上的小触摸屏很常见。将触摸屏功能扩展到黑板大小的屏幕对于允许多个演示者输入的讨论很有用。这种能力可以加强通过互联网连接实现的全球会议，供教育、工业和政府使用。医疗保健和汽车行业需要柔性屏幕。公司和投资者现在将该地区视为具有竞争力的国际市场空间。我们的目标是开发新的材料，设计和具有成本竞争力的制造方法，可用于大规模生产电子黑板，对手指或触控笔触摸敏感。透明电极（te）是一种必需的组件，不仅适用于触摸屏，也适用于太阳能电池和智能窗户，用于改善建筑物的能源管理。氧化铟锡（ITO）是最著名的TE材料，具有独特的高导电性和透明度，但其价格波动，大型面板的高材料和制造成本，以及脆性行为，促使人们寻找替代材料。我们的行业合作伙伴致力于开发并将具有竞争力的大型触摸屏设备推向市场。在我们的合作中，在NSERC的两笔为期六个月的小额合同资助下，我们展示了一种替代的制造方法，即在廉价的玻璃和柔性基板上使用电场定向链连接金属纳米线。这种方法以较低的成本提供了所需的透明度和导电性平衡。通过这项初步工作，我们已经成功地证明了电极面积扩大了100倍。该提案旨在为设计和合成具有低电阻、高透明度和持久性能的TEs新材料的研究计划寻求资金。我们将创造方法，将我们的技术扩展到具有成本竞争力的大规模生产，超过米规模的区域。我们将提出和测试新的配置，以提高触摸灵敏度。