Studies of novel materials produced by laser ablative deposition

激光烧蚀沉积制备的新型材料的研究

• 批准号: 89824-2011
• 负责人: Preston, John
• 金额: $ 2.7万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=569005
• 关键词: Studies; novel; materials; produced; laser

This is a research proposal to study the growth and properties of crystalline films and nanostructures. The growth technique is pulsed laser deposition, a process where an intense UV pulse is used to vapourize a plume of material that is subsequently used to form the film. In many respects the electronic, optical and even structural properties of a film are determined by the first few atomic layers. As a result, interfacial engineering of those first few layers can have a dramatic impact on the resulting film or can even produce a novel interfacial material. Through advances in analytical technicques, we can now extract important chemical information about the atoms at the interfaces. Combined with improvements in film deposition, this opens new opportunities for both fundamental science and important applications such as photovoltaics. The research proposed seeks to take advantage of those opportunities to develop materials specifically of interest for photovoltatic and other applications. These include both uniform films and intricate nanostructures that self-assembly under appropriate conditions. Specific materials to be studied are LaAlO3, SrTiO3, CdTe, FeS2, gold and silver.

这是一个研究结晶薄膜和纳米结构的生长和性质的研究计划。 生长技术是脉冲激光沉积，这是一种使用强烈的紫外线脉冲来蒸发随后用于形成薄膜的材料羽流的工艺。 在许多方面，薄膜的电子、光学甚至结构特性都是由最初的几个原子层决定的。 因此，前几层的界面工程可以对所得膜产生巨大影响，甚至可以产生新型界面材料。 通过分析技术的进步，我们现在可以提取有关界面原子的重要化学信息。 结合薄膜沉积的改进，这为基础科学和重要应用（如光化学）开辟了新的机会。 拟议的研究旨在利用这些机会开发特别感兴趣的光致发光和其他应用材料。 这些包括均匀的薄膜和在适当条件下自组装的复杂纳米结构。 待研究的具体材料为LaAlO3、SrTiO3、CdTe、FeS2、金和银。