Development of new methodologies for the modification of solid surfaces and the synthesis of metal sulfide materials

固体表面改性和金属硫化物材料合成新方法的开发

• 批准号: RGPIN-2015-05443
• 负责人: Houmam, Abdelaziz
• 金额: $ 1.46万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=632466
• 关键词: Development; new; methodologies; modification; solid

The immobilization of organic and bioorganic molecules on solid surfaces is a central objective in nanotechnology and microarray technologies. A parallel chemistry can be used to synthesize metal-based materials of various shapes and sizes, which present a wide range of applications in many areas including solar energy, energy storage, catalysis, etc. Advances in these important areas are directly related to the development of new general chemical pathways for the synthesis of metal based materials, the modification of solid surfaces and the molecular manipulation and control of surface adsorbates. My long-term objective is the development of molecular electronic devices for use in sensing and energy harvesting and storage applications. My initial thrust concerns two important aspects of the chemistry necessary to make this a realizable technology; (i) the development of new approaches for the efficient modification of conducting and semiconducting surfaces with organic molecules, and (ii) the development of new simple, general, and more environmentally friendly methodologies for the synthesis of metal sulfide materials. While most experimental conditions for SAM preparation yield reproducible organic interfaces with specific desirable functionalities that are acceptable for some applications, other fundamental properties need still to be further studied and optimized including corrosion and electrochemical properties. This is intrinsically related to the development of SAMs with lower defects and increased order. On the other hand, the organic modification of oxide-free Si surfaces offering a direct combination of molecular materials and solid-state semiconductor structures and is then an attractive approach toward technologically useful and molecularly tunable thin films.

将有机和生物有机分子固定在固体表面上是纳米技术和微阵列技术的中心目标。平行化学可用于合成各种形状和尺寸的金属基材料，其在包括太阳能、能量存储、催化等许多领域中呈现出广泛的应用。这些重要领域的进展与用于合成金属基材料的新的通用化学途径的开发直接相关，固体表面的改性和表面吸附物的分子操纵和控制。我的长期目标是开发用于传感和能量收集和存储应用的分子电子器件。我最初的推力涉及两个重要方面的化学必要，使这一技术的实现;（i）开发新的方法，有效地修改导电和半导体表面的有机分子，和（ii）开发新的简单，通用，更环保的方法合成金属硫化物材料。虽然SAM制备的大多数实验条件产生可再现的有机界面，具有某些应用可接受的特定理想功能，但其他基本性质仍需要进一步研究和优化，包括腐蚀和电化学性质。这与具有较低缺陷和增加的有序度的SAM的发展内在地相关。另一方面，无氧化物的Si表面的有机改性提供了分子材料和固态半导体结构的直接组合，并且是技术上有用的和分子可调的薄膜的有吸引力的方法。