Properties of nanostructures produced by ion implantation

离子注入产生的纳米结构的特性

• 批准号: 36670-2007
• 负责人: Ross, Guy
• 金额: $ 3.63万
• 依托单位: Institut national de la recherche scientifique
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2007
• 资助国家: 加拿大
• 起止时间: 2007-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=365010
• 关键词: Properties; nanostructures; produced; ion; implantation

THE LONG TERM OBJECTIVE of this proposal is to take advantage of the enormous possibilities of the interaction of ion beams with matter for the development of efficient Si-based light source and of surface treatments which can be used on various materials. The short term and sub-objectives are: 1) Investigation of growth and luminescence properties of silicon nanocrystals (Si-nc), 2) Optimisation of optical gain in Si-nc/SiO2 layers, 3) Fabrication of a Si laser prototype, 4) Study of ion beam matter interaction, especially for isolating materials, 5) Adjustment of the surface/interface properties such as wetting, adherence and work function by formation of nanostructured surfacesPHOTO- AND ELECTRO-LUMINESCENCE OF Si-nc: The development of an all-Si technology will considerable simplify the integration of the optoelectronic devices. The principal milestones are: 1) Validation and optimisation of our computer code used for the simulation of the light interference effect on the PL spectra, 2) Modulation of the PL and EL spectra by light interference and double implantation, 3) Determination of the optical and light emission properties of the Si-nc/SiO2 layer as a function of depth, 4) Specification of the Si-nc/SiO2 layer composition leading to an improvement of the optical gain, 5) Optimisation of the current injection efficiency for EL, 6) Construction of a simple optoelectronic device such as a Si laser prototype.MODIFICATION OF SURFACE PROPERTIES: Many problems related to surface phenomena such as formation and accumulation of fog, ice, dust and dirtiness, require efficient and durable surface treatment. The principal milestones are: 1) Ageing control of superhydrophilic surfaces by double implantation and/or chemical passivation and/or nanostructuration of the surfaces, 2) Production of superhydrophobic nanostructured surfaces, 3) Determination of surface molecular composition that reduces adhesion of ice and dirtiness, 4) Optimisation of the processes leading to the adjustment of the surface work function with nanostructured surfaces, 5) Increase of photovoltaic cell efficiency by using Si-nc and nanostructured surfaces.

这一提议的长期目标是利用离子束与物质相互作用的巨大可能性，开发高效的硅基光源和可用于各种材料的表面处理。短期和子目标是：1)研究硅纳米晶体(Si-NC)的生长和发光特性，2)优化Si-NC/SiO_2层的光学增益，3)制作硅激光原型，4)研究离子束物质的相互作用，特别是对于隔离材料，5)通过形成纳米结构表面来调整表面/界面的性质，如润湿、粘合和功函数：Si-NC的光致发光和电致发光：全硅技术的发展将极大地简化光电子器件的集成。主要的里程碑是：1)验证和优化用于模拟光干扰对光致发光光谱的影响的计算机代码，2)通过光干涉和双注入来调制发光和电致发光光谱，3)确定作为深度的函数的Si-NC/SiO_2层的光学和光发射特性，4)指定导致光学增益改进的Si-NC/SiO_2层组成，5)优化用于EL的电流注入效率，6)制作简单的光电器件，如硅激光样机。表面性质的改变：许多与表面现象有关的问题，如雾、冰、尘埃和污垢的形成和积累，需要高效和持久的表面处理。主要的里程碑是：1)通过双注入和/或化学钝化和/或表面纳米化来控制超亲水表面的老化，2)生产超疏水纳米结构表面，3)确定表面分子组成以减少冰的粘附性和污垢，4)优化导致纳米结构表面调整表面功函数的工艺，5)通过使用Si-NC和纳米结构表面来提高光伏电池的效率。