Plasma-assisted Laser Deposition for Advanced Surfaces and Innovative Materials

用于先进表面和创新材料的等离子体辅助激光沉积

• 批准号: RTI-2017-00626
• 负责人: Mantovani, Diego
• 金额: $ 10.93万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=616728
• 关键词: Plasma; assisted; Laser; Deposition; Advanced

Advanced materials, engineered surfaces and tailored interfaces are becoming the key factors for generating and pushing innovation in a number of fields, including biomedical, industrial, chemical, mechanical, pharmaceutical, and optical thus guaranteeing competitiveness and impacting the economic growth. One of the most recent, versatile and high-potential deposition technique in solid-state physics, analytical chemistry and surface engineering is the vaporization of condensed matter using photons. A short-pulsed high-power laser beam is focused onto a sample surface thereby converting a finite volume of a solid instantaneously into its vapor phase constituents such as ions and neutrals. A Radio-Frequency-plasma source is added to enhance the reactivity of the background gas with the ablated species. The use of a pulsed laser beam enables a precise control over the growth rate, and allow the deposition of potentially all elements into and onto the more external layers of substrates of all materials. Within this technique, it is potentially possible to confer new feature such as adhesion, wettability, wear, easy-cleanness, catalytic activities, biological performances and so on, to a wide range of substrates. The plasma-assisted laser deposition system we propose to acquire by this proposal to NSERC, is an easy-to-use equipment that is fast becoming the gold standard in academic laboratories that require the modification of substrate surfaces. The flexibility in wavelength and power density allows to ablate almost any material or materials combination. This instrument will meet most of the surface modification requirements of the members of the proposed team for the development of a wide variety of materials and surfaces spanning from biomaterials and medical devices (for the regeneration, replacement, and reconstruction of diseased tissues and organs) to industrial products (for polymeric, antibacterial, photonics, wood, or catalysts), to name only a few. This will strongly help the proposed team to competitively show the value of their fundamental research works on materials and surfaces toward applied real products. This equipment is expected to facilitate the application of the results of their discovery researches toward innovation thus valorizing the output of the researches and exploring the potential to become true products for the benefit of the Society.

先进材料、工程表面和定制界面正在成为生物医学、工业、化学、机械、制药和光学等多个领域产生和推动创新的关键因素，从而保证竞争力并影响经济增长。固态物理、分析化学和表面工程中最新的、多功能的和高潜力的沉积技术之一是利用光子蒸发凝聚态物质。短脉冲高功率激光束聚焦到样品表面，从而将有限体积的固体瞬间转化为其气相成分，例如离子和中性物质。添加射频等离子体源以增强背景气体与被烧蚀物质的反应性。脉冲激光束的使用能够精确控制生长速率，并允许将所有元素沉积到所有材料的基底的更外层上。在这项技术中，有可能为各种基材赋予新的特性，如粘附性、润湿性、耐磨性、易清洁性、催化活性、生物性能等。我们向 NSERC 提出的提案中建议购买的等离子体辅助激光沉积系统是一种易于使用的设备，正在迅速成为需要基材表面改性的学术实验室的黄金标准。波长和功率密度的灵活性允许烧蚀几乎任何材料或材料组合。该仪器将满足拟议团队成员的大部分表面改性要求，以开发各种材料和表面，从生物材料和医疗设备（用于患病组织和器官的再生、替换和重建）到工业产品（用于聚合物、抗菌、光子学、木材或催化剂），仅举几例。这将有力地帮助拟议的团队有竞争力地展示他们在材料和表面方面的基础研究工作对实际产品应用的价值。该设备预计将促进他们的发现研究成果应用于创新，从而提高研究成果的价值，并探索成为造福社会的真正产品的潜力。