Characterization of Graphene Composites**********

石墨烯复合材料的表征************

• 批准号: 537156-2018
• 负责人: Koleilat, Ghada
• 金额: $ 1.82万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=655823
• 关键词: Characterization; Graphene; Composites

The different arrangements and combinations in which carbon can be configured produce a wide variety of compounds that have unique physical, chemical, and electrical properties. Graphitic nanomaterials including fullerenes (3D), one-dimensional (1D) carbon nanotubes and two-dimensional (2D) graphene-based sheets are attractive materials for next generation electronic devices. These carbon allotropes can behave as excellent conductors, semiconductors or even insulators depending on their geometries. Carbon-based devices offer several attractive features for use in next generation electronics. These materials can be dispersed and deposited using solution processes, and they can be easily integrated into tools and processes already developed for established materials, such as roll-to-roll manufacturing. Finally, they have long term chemical and temperature stability potentially unmatched by any other materials. In particular, graphene has been the subject of transformative research. However, due to the difficulty and the high cost associated in producing uniform single sheets of graphene, it hasn't been widely deployed yet. Exfoliated Graphene nanoplatelets (stack of graphene ranging from 1 to 15 nm thick) have emerged as a low cost alternative to single separated sheets of graphene, but their electrical, optical, chemical and mechanical properties in terms of electronic applications haven't been fully investigated. ****In this work, the objective is to fully investigate the electrical, chemical and mechanical properties of these graphene nanoplatelets mass-produced by Graphite Innovation and Technologies (GIT). We will assess the viability of this novel material system in integrated circuits by evaluating its electrical and its chemical compatibility with established technologies. Furthermore, as a 2D material, graphene nanoplatelets films are inherently mechanically flexible and could be integrated on various surfaces at minimal cost, allowing large area systems deployment. If they can mass produce platelet-based sheets, and these have similar properties to nanotubes or those of homogenous sheets, GIT will have a product that is significantly cheaper than either and will disrupt the graphite market place. The characterization of these materials may even reveal new properties of commercial value.****

碳的不同排列和组合可以产生各种各样的化合物，这些化合物具有独特的物理，化学和电学特性。 包括富勒烯（3D）、一维（1D）碳纳米管和二维（2D）石墨烯基片的石墨纳米材料是用于下一代电子器件的有吸引力的材料。这些碳同素异形体可以表现为优异的导体，半导体甚至绝缘体，这取决于它们的几何形状。碳基器件为下一代电子产品提供了几个有吸引力的功能。这些材料可以使用溶液工艺分散和沉积，并且它们可以很容易地集成到已经为既定材料开发的工具和工艺中，例如卷对卷制造。最后，它们具有任何其他材料都无法比拟的长期化学和温度稳定性。特别是，石墨烯一直是变革性研究的主题。然而，由于生产均匀的单层石墨烯的困难和高成本，它还没有被广泛部署。剥离的石墨烯纳米片（厚度范围从1至15 nm的石墨烯堆叠）已经作为单个分离的石墨烯片的低成本替代品出现，但是它们在电子应用方面的电学、光学、化学和机械性质尚未得到充分研究。* 在这项工作中，目标是充分研究这些石墨烯纳米片的电气，化学和机械性能，这些石墨烯纳米片由石墨创新和技术（GIT）大规模生产。我们将通过评估其与现有技术的电气和化学兼容性来评估这种新型材料系统在集成电路中的可行性。此外，作为一种2D材料，石墨烯纳米片膜具有固有的机械柔性，可以以最低的成本集成在各种表面上，从而允许大面积系统部署。如果他们能够大规模生产基于血小板的片材，并且这些片材具有与纳米管或均匀片材相似的特性，那么GIT将拥有比任何一种都便宜得多的产品，并将扰乱石墨市场。这些材料的特性甚至可能揭示具有商业价值的新特性。