Nature inspired, environment friendly fibrous flexible electronics and photonics

受自然启发的环保纤维柔性电子和光子学

• 批准号: RGPIN-2017-04666
• 负责人: Servati, Peyman
• 金额: $ 3.42万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 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=711153
• 关键词: Nature; inspired; environment; friendly; fibrous

This proposal focuses on design and engineering of novel fibrous materials and devices that are integrated in form of multifunctional stretchable textiles for empowering revolutionary applications in smart textiles, health monitoring and internet of things (IoT). Recent advances in nanomaterials and devices on thin flexible plastic films highlight significant opportunity for development of electronics in form of yarn and textile that provide breathability, ruggedness and biological compatibility. In fact, in natural systems, different fibrous structures ranging from muscle fibers, nerves, and veins merge to form a complex functional system. Such systems highlight significant opportunity for electronic fibers and textiles with superior flexibility, low cost roll-to-roll manufacturing, improved biocompatibility and possibility for multifunctional designs. The market for electronic textile is expected to reach $70B by 2022 [1] with several sectors including health and wellness, sports, fashion, military and IoT. In line with these opportunities, I have co-founded UBC Centre for Flexible Electronics and Textile (CFET), a member of Canada's Smart Textile and Wearable Alliance, to drive innovation in this important area. The existing expertise in novel nanofiber and textile materials and devices and state-of-the-art prototyping infrastructure form the foundation of this proposal. To mimic natural fibrous systems, we propose development of mechanically flexible yet rugged yarns that deliver functions such as light emission, sensing and energy storage. Different yarns can be knitted, woven or laminated for development of multifunctional textiles that are breathable and stretchable. This research program addresses scientific and technological challenges in material development, device engineering and fabrication of functional yarns for light emission, sensing and energy storage and design of novel integrated textile prototypes. We develop processes for formation of multi-layered organic light emitting diode layers on yarns for breathable and flexible display textiles that have potential for improved light extraction efficiency by virtue of the small diameter of the fibers. By functionalizing electrospun nanofibers and yarns with novel nanostructured films and quantum dots, we investigate development of highly sensitive multifunctional sensor arrays as a platform for development of malleable sensing textiles. Here, environment-friendly natural materials such as lignin will be explored as a source material for fibers. By controlling the nanoporous structure of proposed lignin yarns, we explore novel electrodes for energy storage devices such as supercapacitors and batteries with improved capacity, cycle life and flexibility. Integration of textile prototypes with communication and data processing circuitry for novel applications will be demonstrated.

该提案重点关注新型纤维材料和设备的设计和工程，这些材料和设备以多功能可拉伸纺织品的形式集成，以实现智能纺织品、健康监测和物联网（IoT）领域的革命性应用。纳米材料和柔性塑料薄膜器件的最新进展凸显了以纱线和纺织品形式开发电子产品的重大机遇，这些纱线和纺织品具有透气性、坚固性和生物相容性。事实上，在自然系统中，肌肉纤维、神经和静脉等不同的纤维结构合并形成一个复杂的功能系统。此类系统为电子纤维和纺织品带来了巨大的机遇，具有卓越的灵活性、低成本的卷对卷制造、改进的生物相容性和多功能设计的可能性。预计到 2022 年，电子纺织品市场将达到 $70B [1]，涉及健康与保健、体育、时尚、军事和物联网等多个领域。 为了抓住这些机会，我与他人共同创立了 UBC 柔性电子和纺织品中心 (CFET)，该中心是加拿大智能纺织品和可穿戴联盟的成员，旨在推动这一重要领域的创新。新型纳米纤维和纺织材料和设备以及最先进的原型基础设施方面的现有专业知识构成了该提案的基础。 为了模仿天然纤维系统，我们建议开发机械柔性且坚固的纱线，以提供光发射、传感和能量存储等功能。不同的纱线可以针织、机织或层压，以开发透气、可拉伸的多功能纺织品。该研究项目解决了材料开发、设备工程和用于光发射、传感和能量存储的功能性纱线的制造以及新型集成纺织品原型设计方面的科学和技术挑战。我们开发了在用于透气和柔性显示纺织品的纱线上形成多层有机发光二极管层的工艺，这些纺织品凭借纤维的小直径而具有提高光提取效率的潜力。通过用新型纳米结构薄膜和量子点对电纺纳米纤维和纱线进行功能化，我们研究了高灵敏度多功能传感器阵列的开发，作为开发可延展传感纺织品的平台。在这里，将探索木质素等环保天然材料作为纤维的原材料。通过控制所提出的木质素纱线的纳米孔结构，我们探索了用于超级电容器和电池等储能装置的新型电极，以提高容量、循环寿命和灵活性。将演示纺织品原型与通信和数据处理电路的集成，以用于新颖的应用。