Graphene Coated Porous Semiconductor Nanocomposites for High Performance Electronics and Photonics

用于高性能电子和光子学的石墨烯涂层多孔半导体纳米复合材料

• 批准号: RGPIN-2016-05007
• 负责人: Arès, Richard
• 金额: $ 2.99万
• 依托单位: Université de Sherbrooke
• 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=637056
• 关键词: Graphene; Coated; Porous; Semiconductor; Nanocomposites

Nanostructured semiconductor materials have had a major effect on our daily lives by enabling powerful technologies like lasers, solid-state lighting, powerful and fast electronics, photonics and high performance solar cells. More recently semiconductors were modified through electrochemical processing to make the monocrystal porous and to give it new properties. Porous silicon has attracted a lot of interest for its range of properties, from visible light emission, high specific surface area, reduced mechanical stiffness, or adjustable lattice constant through oxidation. Graphene on the other hand, is a material with properties that can potentially generate highly disruptive new technologies, in sensing, energy storage, electronics and photovoltaics to name a few. In the recent years, my team has laid the foundation for the synthesis of a specific kind of nanostructured material: nano- and meso-porous semiconductors. Their nanometer-scale internal structures can also display quantum confinement effects. The proposed 5-year research program will use the porous semiconductor structure to incorporate graphene and coat its internal surface area to form a new kind of nano-composite, called « graphene-coated porous semiconductor » nano-composite. The high internal surface area of the porous semiconductor will allow the integration of large quantities of graphene with the corresponding benefits. However, much remains to be understood, on the synthesis process as much as on the material properties that it creates.

纳米结构半导体材料已经对我们的日常生活产生了重大影响，它使激光、固态照明、强大而快速的电子设备、光子学和高性能太阳能电池等强大的技术成为可能。最近，通过电化学处理对半导体进行了修饰，使单晶变得多孔化，并赋予其新的性质。多孔硅因其具有可见光发射、高比表面积、降低机械硬度或可通过氧化来调节晶格常数等一系列性质而引起人们的极大兴趣。另一方面，石墨烯是一种材料，其性能可能会在传感、储能、电子和光伏等领域产生极具颠覆性的新技术。近年来，我的团队为合成一种特殊的纳米结构材料奠定了基础：纳米和介孔半导体。它们的纳米级内部结构也可以显示出量子限制效应。拟议的五年研究计划将利用多孔半导体结构来结合石墨烯，并将其内表面积包裹起来，形成一种新型的纳米复合材料，称为石墨烯涂层多孔半导体？纳米复合材料。多孔性半导体的高内表面积将允许大量石墨烯的集成，并具有相应的好处。然而，关于合成过程以及它所产生的材料性能，仍有许多需要了解。